Area code 210
6,309 number blocks indexed across 42 carriers.
States: TX (6,309)
Carriers
| OCN | Company | HQ | Type | Blocks | Recent | Website |
|---|---|---|---|---|---|---|
| 6534 | New Cingular Wireless PCS LLC - IL | Atlanta, GA | Wireless Carrier | 1,202 | 20 | att.com |
| 903C | Onvoy LLC - TX | Chicago, IL | Competitive Local Exchange Carrier | 431 | 13 | sinch.com |
| 6506 | Cellco Partnership dba Verizon Wireless - TX | Olathe, KS | Wireless Carrier | 368 | 4 | verizonwireless.com |
| 624H | Onvoy Spectrum LLC | Broomfield, CO | Wireless Carrier | 43 | 2 | |
| 7138 | Teleport Communications America LLC - TX | Staten Island, NY | Competitive Local Exchange Carrier | 79 | 1 | att.com |
| 321J | HD Carrier LLC | Henderson, NV | IP-Enabled Service / VoIP | 3 | 1 | hdcarrier.com |
| 9533 | Southwestern Bell Telephone Company | Dallas, TX | Regional Bell Operating Company | 1,311 | — | att.com |
| 6529 | T-Mobile USA Inc | Bellevue, WA | Personal Communications Service (Wireless) | 871 | — | t-mobile.com |
| 5562 | T-Mobile USA Inc | Dallas, TX | Personal Communications Service (Wireless) | 499 | — | metropcs.com |
| 004F | Bandwidth.com CLEC LLC - TX | Cary, NC | Competitive Local Exchange Carrier | 386 | — | bandwidth.com |
| 7229 | MCImetro Access Transmission Services LLC | Vienna, VA | Competitive Local Exchange Carrier | 326 | — | verizon.com |
| 793K | TWC IP Enabled Services LLC | Saint Louis, MO | IP-Enabled Service / VoIP | 206 | — | |
| 6114 | Level 3 Communications LLC - TX | Westminster, CO | Competitive Local Exchange Carrier | 182 | — | centurylink.com |
| 8434 | Level 3 of Telecom of Texas LLC - TX | Littleton, CO | Competitive Local Exchange Carrier | 138 | — | twcable.com |
| 829J | PAETEC iTel LLC | Charlotte, NC | IP-Enabled Service / VoIP | 48 | — | |
| 516C | AT&T Enterprises LLC | San Antonio, TX | IP-Enabled Service / VoIP | 47 | — | att.com |
| 177F | Peerless Network of Texas LLC - TX | Chicago, IL | Competitive Local Exchange Carrier | 31 | — | peerlessnetwork.com |
| 7421 | AT&T Local | Bedminster, NJ | Competitive Local Exchange Carrier | 18 | — | att.com |
| 671J | U.S. Telepacific Corporation dba TPx Communications | Las Vegas, NV | IP-Enabled Service / VoIP | 17 | — | tpx.com |
| 7670 | Grande Communications Networks Inc - TX | San Marcos, TX | Competitive Local Exchange Carrier | 17 | — | grandecom.com |
| 6630 | Spok Inc | Plano, TX | Wireless Carrier | 14 | — | spok.com |
| MULT | Multiple OCN Listing | Administrative / Reserved | 14 | — | ||
| 473F | USFon Inc - TX | West Lake Hills, TX | Competitive Local Exchange Carrier | 9 | — | usfon.org |
| 073H | Telnyx LLC | Chicago, IL | IP-Enabled Service / VoIP | 6 | — | telnyx.com |
| 319D | Foremost Telecommunications Corporation - TX | Dallas, TX | Competitive Local Exchange Carrier | 5 | — | foremosttelecom.com |
| 197D | Vonage America LLC | Holmdel, NJ | IP-Enabled Service / VoIP | 4 | — | vonage.com |
| 478J | NUSO LLC | Atlanta, GA | IP-Enabled Service / VoIP | 4 | — | brightlink.com |
| 9748 | American Messaging Services LLC | Lewisville, TX | Wireless Carrier | 4 | — | americanmessaging.net |
| 508J | CenturyLink Communications LLC | Littleton, CO | IP-Enabled Service / VoIP | 3 | — | centurylink.com |
| 139F | Evolve Cellular Inc | Austin, TX | Wireless Carrier | 2 | — | worldcall.net |
| 425J | CSC Wireless LLC | Long Island City, NY | Wireless Carrier | 2 | — | alticeusa.com |
| 490J | Boost SubscriberCo LLC | Washington, DC | Wireless Carrier | 2 | — | dish.com |
| 515J | IP Horizon LLC | Orlando, FL | IP-Enabled Service / VoIP | 2 | — | |
| 551G | NUSO LLC | Atlanta, GA | Wireless Carrier | 2 | — | 365wireless.net |
| 7399 | Westel Inc - TX | Austin, TX | Competitive Local Exchange Carrier | 2 | — | westelsystems.com |
| 7715 | Matrix Telecom LLC SII TNCI - TX | San Antonio, TX | Competitive Local Exchange Carrier | 2 | — | lingo.com |
| 8958 | XO Texas Inc | Reston, VA | Competitive Local Exchange Carrier | 2 | — | verizon.com |
| 939H | Commio LLC | Austin, TX | IP-Enabled Service / VoIP | 2 | — | commio.com |
| 996H | Airespring Inc | Van Nuys, CA | IP-Enabled Service / VoIP | 2 | — | airespring.com |
| 156J | RCLEC Inc | Centennial, CO | IP-Enabled Service / VoIP | 1 | — | rclec.com |
| 4866 | Smartcom Telephone LLC | Mcallen, TX | Competitive Local Exchange Carrier | 1 | — | smartcomtelephone.com |
| 997G | Local Access LLC - TX | Windermere, FL | Competitive Local Exchange Carrier | 1 | — |