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.
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High Island, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
409-251 A BUMTTXTEX6Y  318C CEBRIDGE TELECOM TX , L.P. - TX 562      
409-251 5 BUMTTXTEX6Y  318C CEBRIDGE TELECOM TX , L.P. - TX 562   2022-08-29   
409-286 A HGISTXXADS0  0425 CAMERON TEL CO 562      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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