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Telephone communication, except radio Businesses in Colorado (SIC Code: 4813)

Search Telephone communication, except radio businesses in Colorado below and click on on a business name to see details.
303 Technologies, Inc Castle Rock, Colorado (Douglas County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-901-4766
Fax: 303-901-4766
A T & T Corp Aurora, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-369-7273
Fax: 303-369-7273
A T & T Corp Greeley, Colorado (Weld County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
A T & T Corp Denver, Colorado (Denver County)
Local and long distance telephone communications (SIC Code:481301)
Phone:
Fax:
A T & T Corp Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
A T & T Corp Littleton, Colorado (Douglas County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
A T & T Corp Grand Junction, Colorado (Mesa County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Aaron Levin Longmont, Colorado ( County)
Local and long distance telephone communications (SIC Code:481301)
Phone:
Fax:
Accelerated Internet, LLC Frisco, Colorado (Summit County)
Online service providers (SIC Code:481302)
Phone: 970-262-3515
Fax: 970-262-3515
Acts One Eight Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 719-268-0400
Fax: 719-268-0400
Advanced Voice Technologies, Inc. Aurora, Colorado (Arapahoe County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-539-2950
Fax: 303-539-2950
Advernets Internet Solutions Inc. Golden, Colorado (Jefferson County)
Online service providers (SIC Code:481302)
Phone: 303-716-5939
Fax: 303-716-5939
Affinity Telecom, Inc. Denver, Colorado ( County)
Local and long distance telephone communications (SIC Code:481301)
Phone:
Fax:
Alcatel-Lucent USA Inc. Aurora, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Alcatel-Lucent USA Inc. Littleton, Colorado (Douglas County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-904-1179
Fax: 303-904-1179
Alliance Systems, LLC Evergreen, Colorado (Jefferson County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-679-1371
Fax: 303-679-1371
Alphaplex Inc Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 719-599-3449
Fax: 719-599-3449
Altalinq Telecom U.S.A. Inc. Montrose, Colorado (Montrose County)
Computers, peripherals, and software (SIC Code:504599)
Phone: 970-252-0251
Fax: 970-252-0251
American Communications Englewood, Colorado (Arapahoe County)
Telephone and telegraph apparatus (SIC Code:366199)
Phone: 303-770-4644
Fax: 303-770-4644
American Millennium Corporation, Inc. Golden, Colorado (Jefferson County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-279-2002
Fax: 303-279-2002
American Telesis Inc Longmont, Colorado (Boulder County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-485-1886
Fax: 303-485-1886
Anvil Graphics Greeley, Colorado (Weld County)
Commercial Art And Graphic Design (SIC Code:733600)
Phone: 970-356-5870
Fax: 970-356-5870
Aspen Resources Limited Boulder, Colorado (Boulder County)
Online service providers (SIC Code:481302)
Phone: 303-642-1646
Fax: 303-642-1646
AT&T Corp. Denver, Colorado (Adams County)
Telephone communication, except radio (SIC Code:481399)
Phone: 303-480-4207
Fax: 303-480-4207
AT&T Corp. Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-623-3643
Fax: 303-623-3643
AT&T Corp. Englewood, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
AT&T Corp. Pueblo, Colorado (Pueblo County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 719-423-2060
Fax: 719-423-2060
Avaya Inc Castle Rock, Colorado (Douglas County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Avaya Inc. Littleton, Colorado (Douglas County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 720-444-2758
Fax: 720-444-2758
Avaya Inc. Westminster, Colorado (Adams County)
Online service providers (SIC Code:481302)
Phone: 303-538-1200
Fax: 303-538-1200
Avaya Inc. Fort Collins, Colorado (Larimer County)
Online service providers (SIC Code:481302)
Phone: 970-223-0315
Fax: 970-223-0315
B Connected Software Louisville, Colorado (Boulder County)
Online service providers (SIC Code:481302)
Phone: 303-209-6300
Fax: 303-209-6300
Belcaro Group, Inc. Englewood, Colorado (Arapahoe County)
Online service providers (SIC Code:481302)
Phone: 303-843-0302
Fax: 303-843-0302
Best Connections Answering Ser Montrose, Colorado (Montrose County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 970-240-9200
Fax: 970-240-9200
Big Sandy Telecom Inc Simla, Colorado (Elbert County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 719-541-2261
Fax: 719-541-2261
Bivio Inc. Boulder, Colorado (Boulder County)
Online service providers (SIC Code:481302)
Phone: 303-417-0919
Fax: 303-417-0919
Blacktie LLC Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-832-2903
Fax: 303-832-2903
Blue Moon Works, Inc. Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-565-1100
Fax: 303-565-1100
Brainstorm Internet, Inc. Durango, Colorado (La Plata County)
Online service providers (SIC Code:481302)
Phone: 970-247-1442
Fax: 970-247-1442
Brugg Telecom Littleton, Colorado (Jefferson County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-972-7630
Fax: 303-972-7630
Business Network Long Distance Inc Denver, Colorado (Denver County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 586-443-2002
Fax: 586-443-2002
Cardinal Communications, Inc. Broomfield, Colorado (Jefferson County)
Telephone services (SIC Code:738910)
Phone: 303-404-8682
Fax: 303-404-8682
CB Designs Denver, Colorado ( County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Cbeyond, Inc. Aurora, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-261-3600
Fax: 303-261-3600
Celebrityaccess Boulder, Colorado (Boulder County)
Online service providers (SIC Code:481302)
Phone: 303-554-9858
Fax: 303-554-9858
Central Alarm Systems Inc Littleton, Colorado (Jefferson County)
Electronic parts and equipment (SIC Code:506599)
Phone: 303-972-1690
Fax: 303-972-1690
Centurion Systems, Inc. Castle Rock, Colorado (Douglas County)
Online service providers (SIC Code:481302)
Phone: 303-663-7951
Fax: 303-663-7951
City Star Group Inc Colorado Springs, Colorado (El Paso County)
Computer processing services (SIC Code:737401)
Phone: 719-559-1945
Fax: 719-559-1945
Clear Voice Research.com, LLC Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-534-3333
Fax: 303-534-3333
Coldspark, Inc. Broomfield, Colorado (Jefferson County)
Online service providers (SIC Code:481302)
Phone: 303-962-7800
Fax: 303-962-7800
Comcast Corporation Colorado Springs, Colorado (El Paso County)
Cable and other pay television services (SIC Code:484199)
Phone: 719-491-3456
Fax: 719-491-3456
Commnet Wireless, LLC Castle Rock, Colorado (Douglas County)
Telephone communication, except radio (SIC Code:481399)
Phone: 720-733-8049
Fax: 720-733-8049
Communication Construction & Engineering LLC Denver, Colorado (Adams County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-288-4567
Fax: 303-288-4567
Computer Labs Inc Colorado Springs, Colorado (El Paso County)
Systems analysis and engineering consulting services (SIC Code:874804)
Phone: 719-590-4125
Fax: 719-590-4125
Corporate Communication Inc Wheat Ridge, Colorado (Jefferson County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-423-4444
Fax: 303-423-4444
Covad Communications Group, Inc. Denver, Colorado (Denver County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 720-208-1000
Fax: 720-208-1000
Cricket Communications, Inc. Englewood, Colorado (Arapahoe County)
Telephone communication, except radio (SIC Code:481399)
Phone: 720-374-1820
Fax: 720-374-1820
Custom Computer Designs Corp. Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-460-0900
Fax: 303-460-0900
Cybertech, Inc. Aurora, Colorado (Arapahoe County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-782-5510
Fax: 303-782-5510
Data Link Systems Colorado Springs, Colorado (El Paso County)
Placement agencies (SIC Code:736101)
Phone: 719-266-4535
Fax: 719-266-4535
Datanet Incorporated Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-320-1700
Fax: 303-320-1700
Disaboom, Inc. Greenwood Village, Colorado ( County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Discovery Soft Inc Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-889-5940
Fax: 303-889-5940
Earthnet, Inc Boulder, Colorado (Boulder County)
Information Retrieval Services (SIC Code:737500)
Phone: 303-546-6362
Fax: 303-546-6362
Eastern Slope Rural Telephone Association, Inc. Hugo, Colorado (Lincoln County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 719-743-2441
Fax: 719-743-2441
Educyber Corp Wheat Ridge, Colorado (Jefferson County)
Online service providers (SIC Code:481302)
Phone: 303-268-2245
Fax: 303-268-2245
Elevated Third Inc Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-436-9113
Fax: 303-436-9113
Ensignal Burlington, Colorado (Kit Carson County)
Telephone and communication equipment (SIC Code:599906)
Phone: 719-346-5720
Fax: 719-346-5720
Eonbusiness Corporation Englewood, Colorado (Arapahoe County)
Online service providers (SIC Code:481302)
Phone: 303-850-9300
Fax: 303-850-9300
Equation Research LLC Estes Park, Colorado (Larimer County)
Online service providers (SIC Code:481302)
Phone: 970-577-9828
Fax: 970-577-9828
Expetec Technology Services, LLC Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 719-282-2897
Fax: 719-282-2897
Farmers Telephone Company Inc Pleasant View, Colorado (Montezuma County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 970-562-4211
Fax: 970-562-4211
Fasttrack Communications, Inc. Durango, Colorado (La Plata County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 970-247-3366
Fax: 970-247-3366
Fiberlink Connection LLC Fort Morgan, Colorado (Morgan County)
Online service providers (SIC Code:481302)
Phone: 970-867-0879
Fax: 970-867-0879
First Link Technology, Inc Denver, Colorado (Denver County)
Computer Programming Services (SIC Code:737100)
Phone: 303-691-8200
Fax: 303-691-8200
Flexant Littleton, Colorado (Douglas County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-470-8995
Fax: 303-470-8995
Fone Net, LLC Cortez, Colorado (Montezuma County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 970-564-1824
Fax: 970-564-1824
Fortrust, LLC Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 720-264-2000
Fax: 720-264-2000
Freedom Colorado Information Inc Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 719-632-5511
Fax: 719-632-5511
Frisco Internet Cafe Frisco, Colorado (Summit County)
Online service providers (SIC Code:481302)
Phone: 970-668-0971
Fax: 970-668-0971
Front Range Web Services, LLC Colorado Springs, Colorado (El Paso County)
Computer software development and applications (SIC Code:737103)
Phone: 719-574-5051
Fax: 719-574-5051
Fryingpan Resources, Inc Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-376-1600
Fax: 303-376-1600
Gallaher Group Aurora, Colorado (Arapahoe County)
Online service providers (SIC Code:481302)
Phone: 303-281-9365
Fax: 303-281-9365
Gearhost Inc Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 720-204-1300
Fax: 720-204-1300
Geex Inc Denver, Colorado (Jefferson County)
Online service providers (SIC Code:481302)
Phone: 303-987-3411
Fax: 303-987-3411
Global Communications Group Englewood, Colorado (Arapahoe County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-865-9000
Fax: 303-865-9000
Global Crossing North America Inc Westminster, Colorado (Adams County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-633-3000
Fax: 303-633-3000
Global Healthcare Exchange I, LLC Louisville, Colorado (Boulder County)
Online service providers (SIC Code:481302)
Phone: 720-887-7000
Fax: 720-887-7000
Gnumax L L C Fort Collins, Colorado (Larimer County)
Systems integration services (SIC Code:737302)
Phone: 970-407-9524
Fax: 970-407-9524
Grand Valley Internet, Inc Grand Junction, Colorado (Mesa County)
Online service providers (SIC Code:481302)
Phone: 970-257-9045
Fax: 970-257-9045
Great Western Electric Inc Montrose, Colorado (Montrose County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 970-249-6266
Fax: 970-249-6266
Handy Networks, LLC Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-414-6910
Fax: 303-414-6910
Herenextyear Inc Aurora, Colorado (Arapahoe County)
Online service providers (SIC Code:481302)
Phone: 303-743-0832
Fax: 303-743-0832
High Plains Internet, Inc Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 719-471-0117
Fax: 719-471-0117
Homesphere, Inc. Lakewood, Colorado (Jefferson County)
Marketing consulting services (SIC Code:874203)
Phone: 720-746-0838
Fax: 720-746-0838
Honey Internet Colorado Springs, Colorado ( County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Hostworks, Inc. Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-539-1839
Fax: 303-539-1839
Hursh Group LLC Boulder, Colorado (Boulder County)
Online service providers (SIC Code:481302)
Phone: 303-444-3134
Fax: 303-444-3134
Hypersystems, Inc Englewood, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 720-260-3200
Fax: 720-260-3200
I C Interconnect LLC Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 719-533-1030
Fax: 719-533-1030
Icg Communications, Inc. Littleton, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Icg Holdings, Inc. Englewood, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 888-424-4400
Fax: 888-424-4400
Iloka, Inc. Greenwood Village, Colorado (Arapahoe County)
Communications specialization (SIC Code:173103)
Phone: 303-373-4444
Fax: 303-373-4444
IMT LLC Centennial, Colorado ( County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Independence Network Corp Ridgway, Colorado (Ouray County)
Online service providers (SIC Code:481302)
Phone: 970-626-4400
Fax: 970-626-4400
Indigio Group, Inc Denver, Colorado (Denver County)
Computer software development and applications (SIC Code:737103)
Phone: 303-785-3800
Fax: 303-785-3800
Infoavailable.com, LLC Denver, Colorado (Denver County)
Computer processing services (SIC Code:737401)
Phone: 303-777-0395
Fax: 303-777-0395
Internet Colorado LLC Gunnison, Colorado (Gunnison County)
Online service providers (SIC Code:481302)
Phone: 970-641-0555
Fax: 970-641-0555
Ipremise Inc Centennial, Colorado (Arapahoe County)
Online service providers (SIC Code:481302)
Phone: 888-236-8082
Fax: 888-236-8082
Iservices.com, LLC Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 800-404-7045
Fax: 800-404-7045
K & M Communications, LLC Denver, Colorado (Adams County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-477-7620
Fax: 303-477-7620
Kavleys Business & Tech Center Alamosa, Colorado (Alamosa County)
Telephone communication, except radio (SIC Code:481399)
Phone: 719-587-5100
Fax: 719-587-5100
Kcg Communications, Inc. Denver, Colorado (Denver County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-773-1200
Fax: 303-773-1200
Kineticworks, Inc. Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 720-377-9421
Fax: 720-377-9421
Lb Telecom LLC Arvada, Colorado (Jefferson County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-467-1309
Fax: 303-467-1309
Lenderlive Network, Inc. Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-226-8000
Fax: 303-226-8000
Letco Inc Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-832-2001
Fax: 303-832-2001
Level 3 Communications, Inc. Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-575-6290
Fax: 303-575-6290
Level 3 Communications, Inc. Colorado Springs, Colorado (El Paso County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 719-593-2165
Fax: 719-593-2165
Level 3 Communications, Inc. Colorado Springs, Colorado (El Paso County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 719-457-2424
Fax: 719-457-2424
Level 3 Communications, Inc. Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 720-528-3680
Fax: 720-528-3680
Level 3 Communications, Inc. Boulder, Colorado (Boulder County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Level 3 Communications, Inc. Broomfield, Colorado (Jefferson County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 720-888-1000
Fax: 720-888-1000
Level 3 Financing, Inc. Broomfield, Colorado (Jefferson County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 720-888-1000
Fax: 720-888-1000
Liberty Bell Telecom Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 720-482-0958
Fax: 720-482-0958
Liberty Global, Inc. Englewood, Colorado (Arapahoe County)
Cable And Other Pay Television Services (SIC Code:484100)
Phone: 303-220-6600
Fax: 303-220-6600
Link Neighborhood Inc Denver, Colorado (Denver County)
Computer system selling services (SIC Code:737303)
Phone: 303-830-0123
Fax: 303-830-0123
Live Wire Networks Inc Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-458-5667
Fax: 303-458-5667
Local Portal Corp Englewood, Colorado (Arapahoe County)
Online service providers (SIC Code:481302)
Phone: 303-979-5985
Fax: 303-979-5985
Loftnet Inc Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-228-0638
Fax: 303-228-0638
Mallfinder Network Denver, Colorado ( County)
Computer related consulting services (SIC Code:737902)
Phone:
Fax:
Mapquest, Inc. Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-486-4000
Fax: 303-486-4000
McLeodusa Incorporated Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 800-593-1177
Fax: 800-593-1177
Meetingone.com, Corp. Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-623-2530
Fax: 303-623-2530
Microcomp Solutions Inc Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-371-5550
Fax: 303-371-5550
Microtech Tel Colorado Springs, Colorado (El Paso County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 719-268-9499
Fax: 719-268-9499
Moore Interactive LLC Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 719-634-2539
Fax: 719-634-2539
Motorola Communications & Electronics, Inc. Englewood, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-689-2800
Fax: 303-689-2800
Mountain Computer Wizards, Inc Buena Vista, Colorado (Chaffee County)
Online service providers (SIC Code:481302)
Phone: 719-395-4444
Fax: 719-395-4444
Mx Logic, LLC Englewood, Colorado (Arapahoe County)
Online service providers (SIC Code:481302)
Phone: 720-895-5700
Fax: 720-895-5700
My Wireless-Verizon Wireless Authorized Retailer Littleton, Colorado (Jefferson County)
Telephone and telegraphic equipment (SIC Code:506501)
Phone: 303-972-6502
Fax: 303-972-6502
N C Telecom Inc Meeker, Colorado (Rio Blanco County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 970-878-0477
Fax: 970-878-0477
Net Results Golden, Colorado (Jefferson County)
Online service providers (SIC Code:481302)
Phone: 303-771-2552
Fax: 303-771-2552
New Global Telecom, Inc. Golden, Colorado (Jefferson County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-278-0700
Fax: 303-278-0700
New Media One Web Services, LLC Erie, Colorado (Boulder County)
Online service providers (SIC Code:481302)
Phone: 303-828-9882
Fax: 303-828-9882
Nilenet, Ltd. Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-825-1950
Fax: 303-825-1950
Nortel Networks Inc. Englewood, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-713-3400
Fax: 303-713-3400
Nothern Colorado Cabiling, LLC Arvada, Colorado (Jefferson County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-463-4500
Fax: 303-463-4500
Nova-Net Communications (delaware) Inc Englewood, Colorado (Arapahoe County)
Communication services (SIC Code:489999)
Phone: 303-799-0990
Fax: 303-799-0990
One Step Beyond, Inc Denver, Colorado (Denver County)
Computer processing services (SIC Code:737401)
Phone: 303-458-6532
Fax: 303-458-6532
Onetrack Communications, Inc. Montrose, Colorado (Montrose County)
Local and long distance telephone communications (SIC Code:481301)
Phone:
Fax:
Open Range Communications Inc. Greenwood Village, Colorado (Arapahoe County)
Online service providers (SIC Code:481302)
Phone: 303-376-2111
Fax: 303-376-2111
Page 1 Solutions LLC Golden, Colorado (Jefferson County)
Online service providers (SIC Code:481302)
Phone: 303-233-3886
Fax: 303-233-3886
Pagecafe Internet Consulting Inc Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 719-573-5628
Fax: 719-573-5628
Paragon Communications Loveland, Colorado (Larimer County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 970-622-0474
Fax: 970-622-0474
Paragon Technology Services Grand Junction, Colorado (Mesa County)
Online service providers (SIC Code:481302)
Phone: 970-245-6852
Fax: 970-245-6852
Parallel Path Corporation Boulder, Colorado (Boulder County)
Online service providers (SIC Code:481302)
Phone: 303-396-1111
Fax: 303-396-1111
Peak Communication, LLC Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-699-4477
Fax: 303-699-4477
Peak To Peak Internet Fort Collins, Colorado (Larimer County)
Online service providers (SIC Code:481302)
Phone: 970-225-9911
Fax: 970-225-9911
Peetz Co-Operative Telephone Co Peetz, Colorado (Logan County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 970-334-2220
Fax: 970-334-2220
Phillips County Telephone Co Holyoke, Colorado (Phillips County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 970-854-2201
Fax: 970-854-2201
Piper Communications Service Inc Arvada, Colorado (Jefferson County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-456-1060
Fax: 303-456-1060
Pipertel Communications, LLC Lakewood, Colorado (Jefferson County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 720-246-1178
Fax: 720-246-1178
Plains Cooperative Telephone Association, Inc. Joes, Colorado (Yuma County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 970-358-4211
Fax: 970-358-4211
Premiere Global Services, Inc. Colorado Springs, Colorado (El Paso County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 719-578-0700
Fax: 719-578-0700
Projectricity.com Inc Denver, Colorado (Denver County)
Computer related consulting services (SIC Code:737902)
Phone: 303-488-3332
Fax: 303-488-3332
Qnetworks, LLC Littleton, Colorado (Jefferson County)
Online service providers (SIC Code:481302)
Phone: 303-309-6262
Fax: 303-309-6262
Qualvu Inc Evergreen, Colorado ( County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Qwest Communications International Inc Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-992-1400
Fax: 303-992-1400
Qwest Corporation Greeley, Colorado (Weld County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 970-350-2700
Fax: 970-350-2700
Qwest Corporation Littleton, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-707-5184
Fax: 303-707-5184
Qwest Corporation Grand Junction, Colorado (Mesa County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Qwest Corporation Denver, Colorado (Adams County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-451-2400
Fax: 303-451-2400
Qwest Corporation Denver, Colorado (Adams County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-458-3219
Fax: 303-458-3219
Qwest Corporation Aurora, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Qwest Corporation Littleton, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-224-2900
Fax: 303-224-2900
Qwest Corporation Glenwood Springs, Colorado (Garfield County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 970-945-7433
Fax: 970-945-7433
Qwest Corporation Grand Junction, Colorado (Mesa County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 970-244-4354
Fax: 970-244-4354
Qwest Corporation Boulder, Colorado (Boulder County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-441-7275
Fax: 303-441-7275
Qwest Corporation Colorado Springs, Colorado (El Paso County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 719-636-4417
Fax: 719-636-4417
Qwest Corporation Denver, Colorado (Denver County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-992-1400
Fax: 303-992-1400
Qwest Corporation Littleton, Colorado (Arapahoe County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-707-7454
Fax: 303-707-7454
Qwest Corporation Arvada, Colorado (Jefferson County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Qwest Corporation Morrison, Colorado (Jefferson County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-965-4337
Fax: 303-965-4337
Qwest Government Services, Inc Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-391-8567
Fax: 303-391-8567
Reaction Corp Parker, Colorado (Douglas County)
Computer software development and applications (SIC Code:737103)
Phone: 303-841-2335
Fax: 303-841-2335
Red Door Interactive, Inc. Denver, Colorado (Denver County)
Computer processing services (SIC Code:737401)
Phone: 303-534-2924
Fax: 303-534-2924
Regionalhelpwanted.com, Inc Englewood, Colorado (Arapahoe County)
Business Consulting Services, Not Elsewhere Classified (SIC Code:874800)
Phone:
Fax:
Relera Internet Center & Solution Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-409-1901
Fax: 303-409-1901
Return Path, Inc. Superior, Colorado (Boulder County)
Online service providers (SIC Code:481302)
Phone: 303-642-4100
Fax: 303-642-4100
Ricochet Networks Inc Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Riptide Hosting, Incorporated Littleton, Colorado (Jefferson County)
Online service providers (SIC Code:481302)
Phone: 888-282-1883
Fax: 888-282-1883
Rite Clicks LLC Loveland, Colorado (Larimer County)
Online service providers (SIC Code:481302)
Phone: 970-669-2778
Fax: 970-669-2778
Rmes Communications, Inc. Denver, Colorado (Denver County)
Telephone services (SIC Code:738910)
Phone: 303-839-5200
Fax: 303-839-5200
Rocky Mountain Wholesale, LLC Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-297-3019
Fax: 303-297-3019
Roggen Telephone Cooperative Company Roggen, Colorado (Weld County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-849-5260
Fax: 303-849-5260
Roomlinx, Inc. Broomfield, Colorado (Broomfield County)
Online service providers (SIC Code:481302)
Phone: 303-544-1111
Fax: 303-544-1111
Russ Simpson Denver, Colorado (Denver County)
Communication services (SIC Code:899908)
Phone: 303-777-6947
Fax: 303-777-6947
Rye Telephone Company Colorado City, Colorado (Pueblo County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 719-676-3131
Fax: 719-676-3131
Scitec, Inc. Colorado Springs, Colorado (El Paso County)
Telephone And Telegraph Apparatus (SIC Code:366100)
Phone: 719-638-8821
Fax: 719-638-8821
Serco Services Inc. Colorado Springs, Colorado (El Paso County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 719-235-4100
Fax: 719-235-4100
Servicemagic, Inc. Lakewood, Colorado (Jefferson County)
Online service providers (SIC Code:481302)
Phone: 303-963-7200
Fax: 303-963-7200
Shared Technologies Inc. Lakewood, Colorado (Jefferson County)
Online service providers (SIC Code:481302)
Phone: 303-462-8383
Fax: 303-462-8383
Sirocco Productions Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 719-266-0106
Fax: 719-266-0106
Sixth Dimension Inc Fort Collins, Colorado ( County)
Online service providers (SIC Code:481302)
Phone:
Fax:
SMI International, LLC Colorado Springs, Colorado (El Paso County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 719-531-9090
Fax: 719-531-9090
Solucian Networking L L C Parker, Colorado (Douglas County)
Online service providers (SIC Code:481302)
Phone: 303-840-3403
Fax: 303-840-3403
Sonsbe Internet Service Greeley, Colorado (Weld County)
Online service providers (SIC Code:481302)
Phone: 970-395-9840
Fax: 970-395-9840
Source One Management, Inc. Denver, Colorado (Denver County)
Special warehousing and storage (SIC Code:422699)
Phone: 303-832-8600
Fax: 303-832-8600
South Park LLC Colorado City, Colorado (Pueblo County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 719-676-4151
Fax: 719-676-4151
Spiremedia, Inc. Denver, Colorado (Denver County)
Computer processing services (SIC Code:737401)
Phone: 303-620-9974
Fax: 303-620-9974
Sprint Communications Company L.P. Englewood, Colorado (Arapahoe County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-297-5000
Fax: 303-297-5000
Sprint Spectrum L.P. Littleton, Colorado (Douglas County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-768-7300
Fax: 303-768-7300
Sprint Spectrum L.P. Colorado Springs, Colorado (El Paso County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 719-594-0333
Fax: 719-594-0333
Steeleboy Productions Inc Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-715-0722
Fax: 303-715-0722
Stellar Restaurant Solutions LLC Colorado Springs, Colorado (El Paso County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 719-955-7137
Fax: 719-955-7137
Streamline Internet Inc Boulder, Colorado (Boulder County)
Online service providers (SIC Code:481302)
Phone: 303-444-6484
Fax: 303-444-6484
Suburban Access LLC Broomfield, Colorado (Broomfield County)
Online service providers (SIC Code:481302)
Phone: 303-466-1723
Fax: 303-466-1723
Summit Catalog Company Denver, Colorado (Denver County)
Miscellaneous publishing (SIC Code:274199)
Phone: 303-694-4545
Fax: 303-694-4545
Summit Communication Design Lakewood, Colorado (Jefferson County)
Computer Programming Services (SIC Code:737100)
Phone: 303-290-1898
Fax: 303-290-1898
Sundial Software Inc Westminster, Colorado (Adams County)
Online service providers (SIC Code:481302)
Phone: 303-432-2743
Fax: 303-432-2743
Superlative Solutions Inc Colorado Springs, Colorado (El Paso County)
Computer related consulting services (SIC Code:737902)
Phone: 719-630-1529
Fax: 719-630-1529
Switch & Data Co Englewood, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-799-1375
Fax: 303-799-1375
Synergy Telecommunications, Inc. Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-733-4900
Fax: 303-733-4900
Teamlinx Lllp Denver, Colorado (Denver County)
Telephone communication, except radio (SIC Code:481399)
Phone: 303-574-1552
Fax: 303-574-1552
Tellurium Communications, Inc Colorado Springs, Colorado (El Paso County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 719-277-0800
Fax: 719-277-0800
Telwest Communications LLC Pueblo, Colorado (Pueblo County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 719-595-1999
Fax: 719-595-1999
Telwest of Colorado LLC Colorado Springs, Colorado (El Paso County)
Telephone And Telegraph Apparatus (SIC Code:366100)
Phone: 719-442-1999
Fax: 719-442-1999
The El Paso County Telephone Company Colorado Springs, Colorado (El Paso County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 719-683-2501
Fax: 719-683-2501
The Intelligent Office Inc Boulder, Colorado (Boulder County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-447-9000
Fax: 303-447-9000
The Petroleum Place Inc Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-390-9400
Fax: 303-390-9400
Thenewpush, LLC Arvada, Colorado (Jefferson County)
Online service providers (SIC Code:481302)
Phone: 303-423-4500
Fax: 303-423-4500
Timberline Webworks, Inc Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 719-577-4404
Fax: 719-577-4404
Time Post.com Inc Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 719-282-0366
Fax: 719-282-0366
Time Warner Telecom of Colorado LLC Littleton, Colorado (Douglas County)
Radiotelephone communication (SIC Code:481299)
Phone: 636-625-7000
Fax: 636-625-7000
Total Site Inc Boulder, Colorado (Boulder County)
Online service providers (SIC Code:481302)
Phone: 303-415-9404
Fax: 303-415-9404
Training Peaks LLC Boulder, Colorado (Boulder County)
Prepackaged Software (SIC Code:737200)
Phone: 720-406-1839
Fax: 720-406-1839
Tri Tech International Inc Hesperus, Colorado (La Plata County)
Department Stores (SIC Code:531100)
Phone: 303-495-3555
Fax: 303-495-3555
TW Telecom Inc. Aurora, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-566-1386
Fax: 303-566-1386
TW Telecom Inc. Greenwood Village, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
TW Telecom Inc. Englewood, Colorado (Arapahoe County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-566-1000
Fax: 303-566-1000
TW Telecom Inc. Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-566-1000
Fax: 303-566-1000
Unity Business Networks LLC Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 720-227-0200
Fax: 720-227-0200
Vci Inc Colorado Springs, Colorado (El Paso County)
Computers And Computer Peripheral Equipment And Software (SIC Code:504500)
Phone: 719-599-1352
Fax: 719-599-1352
Verio, Inc. Centennial, Colorado (Arapahoe County)
Online service providers (SIC Code:481302)
Phone: 303-645-1900
Fax: 303-645-1900
Verizon Business Global LLC Colorado Springs, Colorado (El Paso County)
Telephone services (SIC Code:738910)
Phone:
Fax:
Verizon Business Global LLC Colorado Springs, Colorado (El Paso County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 800-888-0800
Fax: 800-888-0800
Verizon Business Network Services Inc. Englewood, Colorado (Arapahoe County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-217-4100
Fax: 303-217-4100
Verizon Business Network Services Inc. Denver, Colorado (Denver County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 303-390-6820
Fax: 303-390-6820
Viawest Internet Services Inc. Denver, Colorado (Arapahoe County)
Online service providers (SIC Code:481302)
Phone: 303-874-5509
Fax: 303-874-5509
Viawest, Inc. Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 720-891-1000
Fax: 720-891-1000
Viawest, Inc. Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 303-407-4715
Fax: 303-407-4715
Vignette Corporation Littleton, Colorado (Douglas County)
Computer software development and applications (SIC Code:737103)
Phone: 303-256-5750
Fax: 303-256-5750
Virtela Communications, Inc. Englewood, Colorado (Arapahoe County)
Online service providers (SIC Code:481302)
Phone: 720-475-4000
Fax: 720-475-4000
Visionbox Inc Colorado Springs, Colorado (El Paso County)
Computer related consulting services (SIC Code:737902)
Phone: 719-268-1039
Fax: 719-268-1039
Warp 8 Inc Arvada, Colorado (Jefferson County)
Online service providers (SIC Code:481302)
Phone: 303-421-5199
Fax: 303-421-5199
Wavmax Englewood, Colorado ( County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Wbs Connect LLC Denver, Colorado (Denver County)
Online service providers (SIC Code:481302)
Phone: 866-927-2669
Fax: 866-927-2669
Web Data Systems Fort Collins, Colorado (Larimer County)
Online service providers (SIC Code:481302)
Phone: 970-495-6949
Fax: 970-495-6949
Web Panache Company Inc Greenwood Village, Colorado ( County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Webcreate.com Grand Junction, Colorado (Mesa County)
Computer processing services (SIC Code:737401)
Phone: 970-254-0404
Fax: 970-254-0404
Webflyer Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 719-572-2787
Fax: 719-572-2787
Wideopenwest Networks, LLC Englewood, Colorado (Arapahoe County)
Online service providers (SIC Code:481302)
Phone: 720-479-3500
Fax: 720-479-3500
X O Colorado LLC Denver, Colorado (Denver County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-839-8351
Fax: 303-839-8351
Xiosoft Inc. Parker, Colorado (Douglas County)
Online service providers (SIC Code:481302)
Phone: 303-468-2110
Fax: 303-468-2110
Xo Communications, LLC Broomfield, Colorado (Jefferson County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Xtomic Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 719-955-5282
Fax: 719-955-5282
Zayo Group, LLC Louisville, Colorado (Boulder County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-381-4683
Fax: 303-381-4683
Zeewaves Systems, Inc Colorado Springs, Colorado (El Paso County)
Online service providers (SIC Code:481302)
Phone: 719-262-3718
Fax: 719-262-3718
Zippytech Inc Durango, Colorado (La Plata County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 970-385-2500
Fax: 970-385-2500