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.

NPA: 425 [Rate centres in NPA 425] [Dial plan for NPA 425]

NXX: 375

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-375 A Bothell WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      
425-375 0 Bothell WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2016-04-04   
425-375 1 Bothell WA BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2016-05-18   
425-375 2 Bothell WA STTLWA03X1X  318J COMCAST IP PHONE LLC 674   2016-04-28   
425-375 3 Bothell WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2016-01-25   
425-375 4 Bothell WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2016-05-30   
425-375 5 Bothell WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2016-03-23   
425-375 6 Bothell WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2016-03-23   
425-375 7 Bothell WA STTLWAWBDSH  159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2017-08-06   
425-375 8 Bothell WA BOTHWAAK3MD  6529 T-MOBILE USA, INC. 674   2016-04-04   
425-375 9 Bothell WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2016-01-17   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.