Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Mount Vernon, WA

<< 1 2 3 4 5 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
360-420 7 PLSBWAXXX0X  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2005-02-14   
360-420 8 PLSBWAXXX0X  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2005-11-09   
360-420 9 PLSBWAXXX0X  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2005-02-14   
360-421 A BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674      
360-422 A MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-422 0 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2022-10-16   
360-422 1 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2021-03-22   
360-422 2 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2021-03-24   
360-422 3 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-09-26   
360-422 4 STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2019-11-02   
360-422 5 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-422 6 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-422 7 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-422 8 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-422 9 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2022-10-16   
360-424 A MTVRWAXXDS1  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-428 A MTVRWAXXDS1  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-428 0 MTVRWAXXDS1  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-428 1 MTVRWAXXDS1  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-428 2 MTVRWAXXDS1  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-428 3 MTVRWAXXDS1  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-428 4 MTVRWAXXDS1  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-428 5 MTVRWAXXDS1  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-428 6 MTVRWAXXDS1  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-428 7 MTVRWAXXDS1  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-428 8 MTVRWAXXDS1  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-428 9 EVRTWAXAX3Y  624H ONVOY SPECTRUM, LLC 674   2023-06-08   
360-429 A MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-429 0 STTLWAWBDSH  159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2017-04-15   
360-429 1 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-429 2 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-429 3 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-429 4 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-429 5 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-429 6 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-429 7 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-429 8 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-429 9 BOTHWAAK3MD  5562 METROPCS, INC. 674   2017-04-16   
360-445 A MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-445 0 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2021-07-17   
360-445 1 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2021-07-17   
360-445 2 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-445 3 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-445 4 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-445 5 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-445 6 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-445 7 TKWLWALL4MD  508J CENTURYLINK COMMUNICATIONS, LLC 674   2013-12-05   
360-445 8 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674   2010-05-30   
360-445 9 EVRTWAXAX3Y  624H ONVOY SPECTRUM, LLC 674   2023-06-08   
360-466 A MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-466 0 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-466 1 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-466 2 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-466 3 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-466 4 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-466 5 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-466 6 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-466 7 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-466 8 PLSBWAXXX0X  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2005-11-09   
360-466 9 MTVRWAXXPS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-488 A STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
360-488 0 EVRTWAXAX5Y  483E ONVOY, LLC - WA 674   2019-06-27   
360-488 1 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2020-11-12   
360-488 2 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2013-05-04   
360-488 3 STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2014-02-10   
360-488 4 STTLWAWBDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674   2012-10-02   
360-488 5 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2021-06-03   
360-488 6 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2014-04-13   
360-488 7 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2013-12-15   
360-488 8 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2021-06-03   
360-488 9 EVRTWAXAX3Y  624H ONVOY SPECTRUM, LLC 674   2023-06-08   
360-503 A STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
360-503 0 EVRTWAXAX5Y  483E ONVOY, LLC - WA 674   2017-01-27   
360-503 1 TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2009-10-16   
360-503 2 TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2016-01-26   
360-503 3 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2015-05-15   
360-503 4 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2016-12-23   
360-503 5 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2018-01-07   
360-503 6 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2016-07-21   
360-503 7 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2016-04-10   
360-503 8 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2016-02-07   
360-503 9 STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2017-02-13   
360-540 A BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674      
360-542 A MTVRWAXXPMD  622J SKYE TELECOM LLC DBA SKYETEL 674      
360-542 0 MTVRWAXXPMD  622J SKYE TELECOM LLC DBA SKYETEL 674   2022-02-08   
360-542 1 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
360-542 2 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
360-542 3 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
360-542 4 EVRTWAXAX5Y  483E ONVOY, LLC - WA 674   2022-12-12   
360-542 5 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
360-542 6 BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2024-07-25   
360-542 7 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
360-542 8 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
360-542 9 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
360-588 A MTVRWAXXPS0  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-588 0 MTVRWAXXPS0  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-588 1 MTVRWAXXPS0  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-588 2 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-12-15   
360-588 3 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-12-15   
360-588 4 STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2005-03-26   

<< 1 2 3 4 5 >>

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.