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: 509 [Rate centres in NPA 509] [Dial plan for NPA 509]

NXX: 748

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-748 A Dallesport WA WSHRWAXARS0  4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      
509-748 0 Dallesport WA WSHRWAXARS0  4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      
509-748 2 Dallesport WA WSHRWAXARS0  4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      
509-748 3 Dallesport WA WSHRWAXARS0  4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      
509-748 4 Dallesport WA THDLORXA7MD  814D CHARTER FIBERLINK WA - CCVII, LLC - WA 672      
509-748 7 Dallesport WA PTLDORWAXDX  508J CENTURYLINK COMMUNICATIONS, LLC 672      
509-748 9 Dallesport WA WSHRWAXARS0  4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.