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: 253 [Rate centres in NPA 253] [Dial plan for NPA 253]

NXX: 271

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
253-271 A Graham WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674      
253-271 0 Graham WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674      
253-271 1 Graham WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2011-10-07   
253-271 2 Graham WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2009-07-30   
253-271 3 Graham WA KRLDWADWDS1  7274 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA 674   2007-06-15   
253-271 4 Graham WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2010-07-22   
253-271 5 Graham WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2006-10-13   
253-271 6 Graham WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2010-09-04   
253-271 7 Graham WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2008-03-05   
253-271 8 Graham WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2011-07-04   
253-271 9 Graham WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2012-04-28   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.