Area code 279
1,520 number blocks indexed across 34 carriers.
States: CA (1,520)
Carriers
| OCN | Company | HQ | Type | Blocks | Recent | Website |
|---|---|---|---|---|---|---|
| 6010 | New Cingular Wireless PCS LLC | Kirkland, WA | Wireless Carrier | 183 | 92 | att.com |
| 6006 | Cellco Partnership dba Verizon Wireless - CA | Olathe, KS | Wireless Carrier | 211 | 43 | verizonwireless.com |
| 624H | Onvoy Spectrum LLC | Broomfield, CO | Wireless Carrier | 68 | 17 | |
| 6529 | T-Mobile USA Inc | Bellevue, WA | Personal Communications Service (Wireless) | 240 | 13 | t-mobile.com |
| 649C | Onvoy LLC - CA | Chicago, IL | Competitive Local Exchange Carrier | 362 | 10 | sinch.com |
| 7145 | Teleport Communications America LLC - CA | Staten Island, NY | Competitive Local Exchange Carrier | 26 | 10 | att.com |
| 8826 | Level 3 Communications LLC - CA | Westminster, CO | Competitive Local Exchange Carrier | 21 | 4 | centurylink.com |
| 490J | Boost SubscriberCo LLC | Washington, DC | Wireless Carrier | 13 | 4 | dish.com |
| 373F | Peerless Network of California LLC - CA | Chicago, IL | Competitive Local Exchange Carrier | 30 | 1 | peerlessnetwork.com |
| 829J | PAETEC iTel LLC | Charlotte, NC | IP-Enabled Service / VoIP | 7 | 1 | |
| 506J | Twilio International Inc | San Francisco, CA | IP-Enabled Service / VoIP | 4 | 1 | twilio.com |
| 981E | Bandwidth.com CLEC LLC - CA | Cary, NC | Competitive Local Exchange Carrier | 103 | — | bandwidth.com |
| 965H | Fractel LLC | Indialantic, FL | IP-Enabled Service / VoIP | 80 | — | fractel.net |
| 5562 | T-Mobile USA Inc | Dallas, TX | Personal Communications Service (Wireless) | 29 | — | metropcs.com |
| 939H | Commio LLC | Austin, TX | IP-Enabled Service / VoIP | 29 | — | commio.com |
| 7229 | MCImetro Access Transmission Services LLC | Vienna, VA | Competitive Local Exchange Carrier | 18 | — | verizon.com |
| 073H | Telnyx LLC | Chicago, IL | IP-Enabled Service / VoIP | 14 | — | telnyx.com |
| MULT | Multiple OCN Listing | Administrative / Reserved | 14 | — | ||
| 318J | Comcast IP Phone LLC | Philadelphia, PA | IP-Enabled Service / VoIP | 13 | — | comcast.com |
| 732J | NUSO LLC | University City, MO | IP-Enabled Service / VoIP | 13 | — | brightlink.com |
| 516J | Ton80 Communications LLC | Anderson, SC | IP-Enabled Service / VoIP | 6 | — | coretel.net |
| 671J | U.S. Telepacific Corporation dba TPx Communications | Las Vegas, NV | IP-Enabled Service / VoIP | 6 | — | tpx.com |
| 197D | Vonage America LLC | Holmdel, NJ | IP-Enabled Service / VoIP | 5 | — | vonage.com |
| 4129 | O1 Communications Inc - CA | Sacramento, CA | Competitive Local Exchange Carrier | 4 | — | tpx.com |
| 598J | Five9 InC | San Ramon, CA | IP-Enabled Service / VoIP | 4 | — | five9.com |
| 3964 | Consolidated Communications Enterprise Services Inc | Roseville, CA | Competitive Local Exchange Carrier | 3 | — | surewest.com |
| 321J | HD Carrier LLC | Henderson, NV | IP-Enabled Service / VoIP | 2 | — | hdcarrier.com |
| 478J | NUSO LLC | Atlanta, GA | IP-Enabled Service / VoIP | 2 | — | brightlink.com |
| 485E | Astound Broadband LLC - CA | Kirkland, WA | Competitive Local Exchange Carrier | 2 | — | astound.com |
| 616J | Leap Telecom LLC | Denver, CO | IP-Enabled Service / VoIP | 2 | — | leap.tel |
| 973E | Race Telecommunications Inc - CA | South San Francisco, CA | Competitive Local Exchange Carrier | 2 | — | race.com |
| 996H | Airespring Inc | Van Nuys, CA | IP-Enabled Service / VoIP | 2 | — | airespring.com |
| 425J | CSC Wireless LLC | Long Island City, NY | Wireless Carrier | 1 | — | alticeusa.com |
| 622J | Skye Telecom LLC dba Skyetel | Vancouver, WA | IP-Enabled Service / VoIP | 1 | — | skyetel.com |