Area code 840
1,250 number blocks indexed across 20 carriers.
States: CA (1,250)
Carriers
| OCN | Company | HQ | Type | Blocks | Recent | Website |
|---|---|---|---|---|---|---|
| 6010 | New Cingular Wireless PCS LLC | Kirkland, WA | Wireless Carrier | 249 | 61 | att.com |
| 6006 | Cellco Partnership dba Verizon Wireless - CA | Olathe, KS | Wireless Carrier | 193 | 56 | verizonwireless.com |
| 6529 | T-Mobile USA Inc | Bellevue, WA | Personal Communications Service (Wireless) | 286 | 51 | t-mobile.com |
| 649C | Onvoy LLC - CA | Chicago, IL | Competitive Local Exchange Carrier | 226 | 38 | sinch.com |
| 624H | Onvoy Spectrum LLC | Broomfield, CO | Wireless Carrier | 39 | 21 | |
| 516C | AT&T Enterprises LLC | San Antonio, TX | IP-Enabled Service / VoIP | 8 | 8 | att.com |
| 490J | Boost SubscriberCo LLC | Washington, DC | Wireless Carrier | 10 | 6 | dish.com |
| 373F | Peerless Network of California LLC - CA | Chicago, IL | Competitive Local Exchange Carrier | 13 | 4 | peerlessnetwork.com |
| 7139 | Teleport Communications America LLC - CA | Staten Island, NY | Competitive Local Exchange Carrier | 5 | 3 | att.com |
| 145J | Terra Nova Telecom Inc | Lakewood Ranch, FL | IP-Enabled Service / VoIP | 5 | 2 | terranova.net |
| 7229 | MCImetro Access Transmission Services LLC | Vienna, VA | Competitive Local Exchange Carrier | 3 | 2 | verizon.com |
| 829J | PAETEC iTel LLC | Charlotte, NC | IP-Enabled Service / VoIP | 1 | 1 | |
| 939H | Commio LLC | Austin, TX | IP-Enabled Service / VoIP | 65 | — | commio.com |
| 965H | Fractel LLC | Indialantic, FL | IP-Enabled Service / VoIP | 58 | — | fractel.net |
| 981E | Bandwidth.com CLEC LLC - CA | Cary, NC | Competitive Local Exchange Carrier | 46 | — | bandwidth.com |
| 073H | Telnyx LLC | Chicago, IL | IP-Enabled Service / VoIP | 18 | — | telnyx.com |
| MULT | Multiple OCN Listing | Administrative / Reserved | 14 | — | ||
| 516J | Ton80 Communications LLC | Anderson, SC | IP-Enabled Service / VoIP | 7 | — | coretel.net |
| 321J | HD Carrier LLC | Henderson, NV | IP-Enabled Service / VoIP | 3 | — | hdcarrier.com |
| 8826 | Level 3 Communications LLC - CA | Westminster, CO | Competitive Local Exchange Carrier | 1 | — | centurylink.com |