Local-number carriers in Connecticut (CT)
← all states · area codes: 860 (5,892) · 203 (5,468) · 475 (2,878) · 959 (1,491)
Top carrier groups in Connecticut
Multiple state-OCNs from the same brand are rolled up here. Bar length is total blocks; red overlay is recent activity in the last 18 months.
Show full table (25 groups)
| Group | Type | OCNs in CT | Blocks | Recent |
|---|---|---|---|---|
| AT&T | Wireless Carrier | 4 | 1,644 | 96 |
| Verizon | Wireless Carrier | 5 | 2,468 | 87 |
| Onvoy | Competitive Local Exchange Carrier | 1 | 1,783 | 64 |
| T-Mobile | Personal Communications Service (Wireless) | 3 | 2,240 | 60 |
| Terra Nova Telecom | IP-Enabled Service / VoIP | 1 | 17 | 16 |
| Bandwidth.com | Competitive Local Exchange Carrier | 1 | 912 | 8 |
| Brightlink Communications | IP-Enabled Service / VoIP | 3 | 24 | 8 |
| Dish Wireless | Wireless Carrier | 1 | 43 | 6 |
| Onvoy Spectrum | Wireless Carrier | 1 | 366 | 5 |
| HD Carrier | IP-Enabled Service / VoIP | 1 | 8 | 4 |
| CSC Wireless | Wireless Carrier | 1 | 21 | 3 |
| TPX Communications | IP-Enabled Service / VoIP | 1 | 3 | 3 |
| Centurylink | Competitive Local Exchange Carrier | 2 | 687 | 2 |
| Comcast | IP-Enabled Service / VoIP | 1 | 458 | 2 |
| Peerless Network | Competitive Local Exchange Carrier | 1 | 389 | 2 |
| Cablevision Lightpath | Competitive Local Exchange Carrier | 1 | 210 | 2 |
| CSC Voice | IP-Enabled Service / VoIP | 1 | 175 | 2 |
| Wavenation | IP-Enabled Service / VoIP | 1 | 2 | 2 |
| TELNYX | IP-Enabled Service / VoIP | 1 | 126 | 1 |
| Frontier | Incumbent Local Exchange Carrier | 1 | 2,723 | · |
| Windstream | IP-Enabled Service / VoIP | 1 | 821 | · |
| Ton80 Communications | IP-Enabled Service / VoIP | 1 | 107 | · |
| YMax Communications | Competitive Local Exchange Carrier | 1 | 76 | · |
| EON Telecom | IP-Enabled Service / VoIP | 1 | 66 | · |
| Charter IP Enabled Services | IP-Enabled Service / VoIP | 1 | 59 | · |
Area codes in Connecticut
Sized by total number blocks indexed in each area code. Click any NPA for its full carrier directory.
All OCNs in Connecticut
| OCN | Company | Group | HQ | Type | Blocks | Recent | Website |
|---|---|---|---|---|---|---|---|
| 4036 | New Cingular Wireless PCS LLC - DC | AT&T | Atlanta | Wireless Carrier | 1,151 | 89 | att.com |
| 6388 | Cellco Partnership dba Verizon Wireless - CT | Verizon | Olathe | Wireless Carrier | 1,851 | 87 | verizonwireless.com |
| 639C | Onvoy LLC - CT | Onvoy | Chicago | Competitive Local Exchange Carrier | 1,783 | 64 | sinch.com |
| 6624 | Omnipoint Communications Inc - CT | T-Mobile | Wayne | Personal Communications Service (Wireless) | 1,427 | 57 | t-mobile.com |
| 145J | Terra Nova Telecom Inc | Terra Nova Telecom | Lakewood Ranch | IP-Enabled Service / VoIP | 17 | 16 | terranova.net |
| 199F | Bandwidth.com CLEC LLC - CT | Bandwidth.com | Cary | Competitive Local Exchange Carrier | 912 | 8 | bandwidth.com |
| 732J | NUSO LLC | Brightlink Communications | University City | IP-Enabled Service / VoIP | 18 | 8 | brightlink.com |
| 490J | Boost SubscriberCo LLC | Dish Wireless | Washington | Wireless Carrier | 43 | 6 | dish.com |
| 7143 | Teleport Communications America LLC - CT | AT&T | Staten Island | Competitive Local Exchange Carrier | 436 | 5 | att.com |
| 624H | Onvoy Spectrum LLC | Onvoy Spectrum | Broomfield | Wireless Carrier | 366 | 5 | |
| 321J | HD Carrier LLC | HD Carrier | Henderson | IP-Enabled Service / VoIP | 8 | 4 | hdcarrier.com |
| 425J | CSC Wireless LLC | CSC Wireless | Long Island City | Wireless Carrier | 21 | 3 | alticeusa.com |
| 671J | U.S. Telepacific Corporation dba TPx Communications | TPX Communications | Las Vegas | IP-Enabled Service / VoIP | 3 | 3 | tpx.com |
| 4800 | Level 3 Communications LLC - CT | Centurylink | Westminster | Competitive Local Exchange Carrier | 595 | 2 | centurylink.com |
| 318J | Comcast IP Phone LLC | Comcast | Philadelphia | IP-Enabled Service / VoIP | 458 | 2 | comcast.com |
| 539F | Peerless Network of Connecticut LLC - CT | Peerless Network | Chicago | Competitive Local Exchange Carrier | 389 | 2 | peerlessnetwork.com |
| 4950 | Cablevision Lightpath Inc - CT | Cablevision Lightpath | Hicksville | Competitive Local Exchange Carrier | 210 | 2 | altice.com |
| 612K | CSC Voice LLC | CSC Voice | Bethpage | IP-Enabled Service / VoIP | 175 | 2 | |
| 7421 | AT&T Local | AT&T | Bedminster | Competitive Local Exchange Carrier | 48 | 2 | att.com |
| 6622 | Omnipoint Communications Inc - NY | T-Mobile | Wayne | Personal Communications Service (Wireless) | 4 | 2 | t-mobile.com |
| 700J | Wavenation LLC | Wavenation | Chicago | IP-Enabled Service / VoIP | 2 | 2 | peerlessnetwork.com |
| 5562 | T-Mobile USA Inc | T-Mobile | Dallas | Personal Communications Service (Wireless) | 809 | 1 | metropcs.com |
| 073H | Telnyx LLC | TELNYX | Chicago | IP-Enabled Service / VoIP | 126 | 1 | telnyx.com |
| 9147 | Southern New England Telephone Company dba Frontier Communications of Connecticut | Frontier | Dallas | Regional Bell Operating Company | 2,723 | · | frontier.com |
| 829J | PAETEC iTel LLC | Windstream | Charlotte | IP-Enabled Service / VoIP | 821 | · | |
| 7230 | MCImetro Access Transmission Services LLC - CT | Verizon | Vienna | Competitive Local Exchange Carrier | 304 | · | verizon.com |
| 7229 | MCImetro Access Transmission Services LLC | Verizon | Vienna | Competitive Local Exchange Carrier | 254 | · | verizon.com |
| 516J | Ton80 Communications LLC | Ton80 Communications | Anderson | IP-Enabled Service / VoIP | 107 | · | coretel.net |
| 508J | CenturyLink Communications LLC | Centurylink | Littleton | IP-Enabled Service / VoIP | 92 | · | centurylink.com |
| 350E | YMax Communications Corporation - CT | YMax Communications | Palm Beach | Competitive Local Exchange Carrier | 76 | · | ymaxcorp.com |
| 839J | EON Telecom Inc | EON Telecom | Bellingham | IP-Enabled Service / VoIP | 66 | · | |
| 792K | Charter IP Enabled Services LLC | Charter IP Enabled Services | Saint Louis | IP-Enabled Service / VoIP | 59 | · | |
| 9104 | Verizon New York Inc | Verizon | Boston | Regional Bell Operating Company | 56 | · | verizon.com |
| MULT | Multiple OCN Listing | MULTIPLE OCN LISTING | Administrative / Reserved | 56 | · | ||
| 515J | IP Horizon LLC | IP Horizon | Orlando | IP-Enabled Service / VoIP | 48 | · | |
| 939H | Commio LLC | Commio | Austin | IP-Enabled Service / VoIP | 46 | · | commio.com |
| 965H | Fractel LLC | Fractel | Indialantic | IP-Enabled Service / VoIP | 42 | · | fractel.net |
| 866H | Barr Tell USA Inc - CT | Barr Tell USA | Long Beach | Competitive Local Exchange Carrier | 28 | · | barrtell.com |
| 6630 | Spok Inc | USA Mobility | Plano | Wireless Carrier | 22 | · | spok.com |
| 466E | IDT America Corporation - CT | IDT America | Newark | Competitive Local Exchange Carrier | 18 | · | idt.net |
| 197D | Vonage America LLC | Vonage Network | Holmdel | IP-Enabled Service / VoIP | 17 | · | vonage.com |
| 9748 | American Messaging Services LLC | American Messaging Services LLC | Lewisville | Wireless Carrier | 14 | · | americanmessaging.net |
| 7140 | TC Systems Inc - NY | AT&T | Staten Island | Competitive Local Exchange Carrier | 9 | · | att.com |
| 478J | NUSO LLC | Brightlink Communications | Atlanta | IP-Enabled Service / VoIP | 4 | · | brightlink.com |
| 506J | Twilio International Inc | Twilio International | San Francisco | IP-Enabled Service / VoIP | 3 | · | twilio.com |
| 7316 | MCImetro Access Transmission Services LLC - CT | Verizon | Vienna | Competitive Local Exchange Carrier | 3 | · | verizon.com |
| 114J | Exiant Communications LLC | Exiant | Eldersburg | IP-Enabled Service / VoIP | 2 | · | exiantcom.com |
| 551G | NUSO LLC | Brightlink Communications | Atlanta | Wireless Carrier | 2 | · | 365wireless.net |
| 622J | Skye Telecom LLC dba Skyetel | Skyetel | Vancouver | IP-Enabled Service / VoIP | 2 | · | skyetel.com |
| 156J | RCLEC Inc | RCLEC | Centennial | IP-Enabled Service / VoIP | 1 | · | rclec.com |
| 525G | Barr Tell USA Inc - NY | Barr Tell USA | Long Beach | Competitive Local Exchange Carrier | 1 | · | barrtell.com |
| 6919 | Aquis Communications Inc | Aquis Communications | Parsippany | Wireless Carrier | 1 | · | americanmessaging.net |