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: 750

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
253-750 A Sumner WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674      
253-750 0 Sumner WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2011-10-03   
253-750 1 Sumner WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2019-05-10   
253-750 2 Sumner WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2016-07-18   
253-750 3 Sumner WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2013-11-08   
253-750 4 Sumner WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2010-07-25   
253-750 5 Sumner WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2015-05-04   
253-750 6 Sumner WA SMNRWA01DS1  9638 QWEST CORPORATION 674   2013-04-15   
253-750 7 Sumner WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2018-04-12   
253-750 8 Sumner WA TKWLWALL4MD  508J CENTURYLINK COMMUNICATIONS, LLC 674   2015-06-26   
253-750 9 Sumner WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2016-02-11   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.