Washington
Area codes
5
Rate centres
85
Carriers
78
Prefix blocks
18,154
A Local Access and Transport Area is the region a call is routed within before it becomes long-haul. The boundaries were drawn when the Bell System was broken up in 1984: a local carrier could carry a call inside its LATA, and a long-distance carrier had to take it across one. The division still shapes how calls are routed and rated today, which is why every prefix block on this site carries a LATA.
78 carriers hold blocks here. The 25 largest are shown.
| Carrier | OCN | Blocks | Share |
|---|---|---|---|
| T-MOBILE USA, INC. | 6529 | 3,412 | 18.8% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | 2,202 | 12.1% |
| ONVOY, LLC - WA | 483E | 2,144 | 11.8% |
| QWEST CORPORATION | 9638 | 1,558 | 8.6% |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 1,510 | 8.3% |
| LEVEL 3 COMMUNICATIONS, LLC - WA | 6121 | 1,047 | 5.8% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - WA | 7146 | 773 | 4.3% |
| COMCAST IP PHONE, LLC | 318J | 646 | 3.6% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 563 | 3.1% |
| ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | 543 | 3.0% |
| ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4324 | 509 | 2.8% |
| BANDWIDTH.COM CLEC, LLC - WA | 006F | 498 | 2.7% |
| METROPCS, INC. | 5562 | 462 | 2.5% |
| PEERLESS NETWORK OF WASHINGTON, LLC - WA | 159F | 325 | 1.8% |
| ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4423 | 193 | 1.1% |
| CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK | 2408 | 180 | 1.0% |
| ONVOY SPECTRUM, LLC | 624H | 176 | 1.0% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA | 7274 | 105 | 0.6% |
| PAETEC ITEL, LLC | 829J | 100 | 0.6% |
| LEVEL 3 TELECOM OF WASHINGTON, LLC - WA | 7455 | 91 | 0.5% |
| CENTURYLINK COMMUNICATIONS, LLC | 508J | 88 | 0.5% |
| TELNYX LLC | 073H | 85 | 0.5% |
| TERRA NOVA TELECOM INC. | 145J | 81 | 0.4% |
| ASTOUND BROADBAND, LLC - WA | 937F | 75 | 0.4% |
| ELTOPIA COMMUNICATIONS, LLC - WA | 663D | 68 | 0.4% |
85 rate centres. search them all.