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: 206 [Rate centres in NPA 206] [Dial plan for NPA 206]

NXX: 303

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
206-303 A Seattle WA STTLWA06DS6  9638 QWEST CORPORATION 674      
206-303 0 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674      
206-303 1 Seattle WA STTLWA06DS6  9638 QWEST CORPORATION 674      
206-303 2 Seattle WA STTLWA06DS6  9638 QWEST CORPORATION 674      
206-303 3 Seattle WA STTLWA06DS6  9638 QWEST CORPORATION 674      
206-303 4 Seattle WA STTLWA06DS6  9638 QWEST CORPORATION 674      
206-303 5 Seattle WA STTLWA06DS6  9638 QWEST CORPORATION 674      
206-303 6 Seattle WA STTLWA06DS6  9638 QWEST CORPORATION 674      
206-303 7 Seattle WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      
206-303 8 Seattle WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      
206-303 9 Seattle WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.