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.

Sour Lake, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
409-287 A SRLKTXSRRS0  9533 SOUTHWESTERN BELL 562      
409-287 0 BUMTTX14IMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 562   2012-05-27   
409-287 1 SRLKTXSRRS0  9533 SOUTHWESTERN BELL 562      
409-287 2 SRLKTXSRRS0  9533 SOUTHWESTERN BELL 562      
409-287 3 SRLKTXSRRS0  9533 SOUTHWESTERN BELL 562      
409-287 4 SRLKTXSRRS0  9533 SOUTHWESTERN BELL 562      
409-287 5 BUMTTXTEXSX  073H TELNYX LLC 562   2021-04-09   
409-287 6 BUMTTX14IMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 562   2015-06-19   
409-287 7 BUMUTXHM0MD  939H COMMIO, LLC 562   2022-07-14   
409-287 8   145J TERRA NOVA TELECOM INC. 562   2022-04-12   
409-287 9 BUMTTXTEX8X  903C ONVOY, LLC - TX 562   2014-08-22   
409-445 A BUMTTX14IMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 562      
409-445 0 BUMTTX14IMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 562      
409-445 1 BUMTTXTEX5X  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 562   2022-12-11   
409-445 2 BUMTTXTEXNX  516C AT&T CORP. 562   2012-01-22   
409-445 3 BUMTTXTEX8X  903C ONVOY, LLC - TX 562   2020-08-31   
409-445 4 BUMTTXTEX8X  903C ONVOY, LLC - TX 562   2020-08-31   
409-445 5 BUMTTXTEXUX  624H ONVOY SPECTRUM, LLC 562   2021-12-04   
409-445 6 BUMTTXTEXUX  624H ONVOY SPECTRUM, LLC 562   2021-07-03   
409-445 7 BUMTTXTEXUX  624H ONVOY SPECTRUM, LLC 562   2021-12-04   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.