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: 409 [Rate centres in NPA 409] [Dial plan for NPA 409]

NXX: 287

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
409-287 A Sour Lake TX SRLKTXSRRS0  9533 SOUTHWESTERN BELL 562      
409-287 0 Sour Lake TX BUMTTX14IMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 562      
409-287 1 Sour Lake TX SRLKTXSRRS0  9533 SOUTHWESTERN BELL 562      
409-287 2 Sour Lake TX SRLKTXSRRS0  9533 SOUTHWESTERN BELL 562      
409-287 3 Sour Lake TX SRLKTXSRRS0  9533 SOUTHWESTERN BELL 562      
409-287 4 Sour Lake TX SRLKTXSRRS0  9533 SOUTHWESTERN BELL 562      
409-287 5 Sour Lake TX BUMTTXTEXSX  073H TELNYX LLC 562      
409-287 6 Sour Lake TX BUMTTX14IMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 562      
409-287 7 Sour Lake TX BUMUTXHM0MD  939H COMMIO, LLC 562      
409-287 8 Sour Lake TX   145J TERRA NOVA TELECOM INC. 562      
409-287 9 Sour Lake TX BUMTTXTEX8X  903C ONVOY, LLC - TX 562      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.