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: 430

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
253-430 A Gig Harbor WA PLSBWAXXX0X  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2025-11-01   
253-430 0 Gig Harbor WA   145J TERRA NOVA TELECOM INC. 674   2025-11-03   
253-430 1 Gig Harbor WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2026-07-09   
253-430 8 Gig Harbor WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2026-07-18   
253-430 9 Gig Harbor WA PLSBWAXXX0X  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2025-11-01   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.