Area code 530
6,313 number blocks indexed across 64 carriers.
States: CA (6,313)
Carriers
| OCN | Company | HQ | Type | Blocks | Recent | Website |
|---|---|---|---|---|---|---|
| 6010 | New Cingular Wireless PCS LLC | Kirkland, WA | Wireless Carrier | 593 | 47 | att.com |
| 6006 | Cellco Partnership dba Verizon Wireless - CA | Olathe, KS | Wireless Carrier | 642 | 41 | verizonwireless.com |
| 6529 | T-Mobile USA Inc | Bellevue, WA | Personal Communications Service (Wireless) | 464 | 32 | t-mobile.com |
| 649C | Onvoy LLC - CA | Chicago, IL | Competitive Local Exchange Carrier | 1,082 | 16 | sinch.com |
| 145J | Terra Nova Telecom Inc | Lakewood Ranch, FL | IP-Enabled Service / VoIP | 11 | 9 | terranova.net |
| 981E | Bandwidth.com CLEC LLC - CA | Cary, NC | Competitive Local Exchange Carrier | 433 | 8 | bandwidth.com |
| 5562 | T-Mobile USA Inc | Dallas, TX | Personal Communications Service (Wireless) | 244 | 6 | metropcs.com |
| 624H | Onvoy Spectrum LLC | Broomfield, CO | Wireless Carrier | 114 | 6 | |
| 732J | NUSO LLC | University City, MO | IP-Enabled Service / VoIP | 7 | 3 | brightlink.com |
| 373F | Peerless Network of California LLC - CA | Chicago, IL | Competitive Local Exchange Carrier | 125 | 2 | peerlessnetwork.com |
| 829J | PAETEC iTel LLC | Charlotte, NC | IP-Enabled Service / VoIP | 7 | 2 | |
| 318J | Comcast IP Phone LLC | Philadelphia, PA | IP-Enabled Service / VoIP | 83 | 1 | comcast.com |
| 776C | Charter Fiberlink CA-CCO LLC - CA | Saint Louis, MO | Competitive Local Exchange Carrier | 41 | 1 | spectrum.com |
| 485E | Astound Broadband LLC - CA | Kirkland, WA | Competitive Local Exchange Carrier | 11 | 1 | astound.com |
| 700J | Wavenation LLC | Chicago, IL | IP-Enabled Service / VoIP | 2 | 1 | peerlessnetwork.com |
| 9740 | Pacific Bell Telephone Company | Dallas, TX | Regional Bell Operating Company | 838 | — | att.com |
| 8826 | Level 3 Communications LLC - CA | Westminster, CO | Competitive Local Exchange Carrier | 300 | — | centurylink.com |
| 4129 | O1 Communications Inc - CA | Sacramento, CA | Competitive Local Exchange Carrier | 168 | — | tpx.com |
| 939H | Commio LLC | Austin, TX | IP-Enabled Service / VoIP | 143 | — | commio.com |
| 2308 | Citizens Telecommunications Company of California Inc dba Frontier Communications of California | Rochester, NY | Incumbent Local Exchange Carrier | 137 | — | frontier.com |
| 073H | Telnyx LLC | Chicago, IL | IP-Enabled Service / VoIP | 93 | — | telnyx.com |
| 671J | U.S. Telepacific Corporation dba TPx Communications | Las Vegas, NV | IP-Enabled Service / VoIP | 93 | — | tpx.com |
| 7145 | Teleport Communications America LLC - CA | Staten Island, NY | Competitive Local Exchange Carrier | 92 | — | att.com |
| 516C | AT&T Enterprises LLC | San Antonio, TX | IP-Enabled Service / VoIP | 84 | — | att.com |
| 9262 | Utility Telecom Group LLC - CA | Stockton, CA | Competitive Local Exchange Carrier | 71 | — | utilitytelephone.com |
| 7229 | MCImetro Access Transmission Services LLC | Vienna, VA | Competitive Local Exchange Carrier | 49 | — | verizon.com |
| 3402 | Citizens Telecommunications Company of California Inc dba Frontier Communications of California | Rochester, NY | Incumbent Local Exchange Carrier | 39 | — | frontier.com |
| 7128 | MCImetro Access Transmission Services LLC - CA | Vienna, VA | Competitive Local Exchange Carrier | 37 | — | verizon.com |
| 4420 | Frontier California Inc | Irving, TX | Regional Bell Operating Company | 32 | — | frontier.com |
| 388E | Cebridge Telecom CA LLC dba Suddenlink Communications - CA | Saint Louis, MO | Competitive Local Exchange Carrier | 30 | — | altice.com |
| 6261 | United States Cellular - CA | Chicago, IL | Wireless Carrier | 30 | — | uscellular.com |
| 515J | IP Horizon LLC | Orlando, FL | IP-Enabled Service / VoIP | 26 | — | |
| 516J | Ton80 Communications LLC | Anderson, SC | IP-Enabled Service / VoIP | 26 | — | coretel.net |
| 965H | Fractel LLC | Indialantic, FL | IP-Enabled Service / VoIP | 18 | — | fractel.net |
| 490J | Boost SubscriberCo LLC | Washington, DC | Wireless Carrier | 16 | — | dish.com |
| MULT | Multiple OCN Listing | Administrative / Reserved | 14 | — | ||
| 508J | CenturyLink Communications LLC | Littleton, CO | IP-Enabled Service / VoIP | 12 | — | centurylink.com |
| 2321 | Happy Valley Telephone Company | Madison, WI | Incumbent Local Exchange Carrier | 11 | — | tdstelecom.com |
| 973E | Race Telecommunications Inc - CA | South San Francisco, CA | Competitive Local Exchange Carrier | 10 | — | race.com |
| 2315 | Global Valley Networks | Patterson, CA | Incumbent Local Exchange Carrier | 7 | — | frontier.com |
| 2339 | Siskiyou Telephone Company | Fort Jones, CA | Incumbent Local Exchange Carrier | 7 | — | siskiyoutelephone.com |
| 863F | Frontier Communications of the Southwest Inc - CA | Rochester, NY | Incumbent Local Exchange Carrier | 7 | — | frontier.com |
| 321J | HD Carrier LLC | Henderson, NV | IP-Enabled Service / VoIP | 6 | — | hdcarrier.com |
| 734E | Cal-Ore Communications Inc - CA | Dorris, CA | Competitive Local Exchange Carrier | 6 | — | cot.net |
| 9748 | American Messaging Services LLC | Lewisville, TX | Wireless Carrier | 5 | — | americanmessaging.net |
| 197D | Vonage America LLC | Holmdel, NJ | IP-Enabled Service / VoIP | 4 | — | vonage.com |
| 2311 | Cal-Ore Telephone Company | Dorris, CA | Incumbent Local Exchange Carrier | 4 | — | calore.net |
| 3964 | Consolidated Communications Enterprise Services Inc | Roseville, CA | Competitive Local Exchange Carrier | 4 | — | surewest.com |
| 425J | CSC Wireless LLC | Long Island City, NY | Wireless Carrier | 4 | — | alticeusa.com |
| 506J | Twilio International Inc | San Francisco, CA | IP-Enabled Service / VoIP | 4 | — | twilio.com |
| 622J | Skye Telecom LLC dba Skyetel | Vancouver, WA | IP-Enabled Service / VoIP | 4 | — | skyetel.com |
| 996H | Airespring Inc | Van Nuys, CA | IP-Enabled Service / VoIP | 4 | — | airespring.com |
| 103G | SnowCrest Telephone Inc - CA | Mount Shasta, CA | Competitive Local Exchange Carrier | 3 | — | snowcrest.net |
| 114J | Exiant Communications LLC | Eldersburg, MD | IP-Enabled Service / VoIP | 2 | — | exiantcom.com |
| 2342 | Citizens Telecommunications Company of California Inc dba Frontier Communications of California | Rochester, NY | Incumbent Local Exchange Carrier | 2 | — | frontier.com |
| 252F | Wide Voice LLC - CA | Las Vegas, NV | Competitive Local Exchange Carrier | 2 | — | widevoice.com |
| 7174 | Electric Lightwave LLC dba Allstream | Portland, OR | Competitive Local Exchange Carrier | 2 | — | allstream.com |
| 7421 | AT&T Local | Bedminster, NJ | Competitive Local Exchange Carrier | 2 | — | att.com |
| 2313 | Ducor Telephone Company | Ducor, CA | Incumbent Local Exchange Carrier | 1 | — | ducortelco.com |
| 2318 | Foresthill Telephone Company Inc | Kerman, CA | Incumbent Local Exchange Carrier | 1 | — | sebastiancorp.com |
| 2360 | CenturyTel of Oregon Inc dba CenturyLink | Monroe, LA | Incumbent Local Exchange Carrier | 1 | — | centurylink.com |
| 6906 | American Messaging Services LLC | Lewisville, TX | Wireless Carrier | 1 | — | |
| 7718 | Level 3 Telecom of California LP - CA | Littleton, CO | Competitive Local Exchange Carrier | 1 | — | centurylink.com |
| 7894 | North County Communications Corporation - CA | San Diego, CA | Competitive Local Exchange Carrier | 1 | — | nccom.com |