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.

OCN: 807C INTRADO COMMUNICATIONS LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
205-963 A Birmingham AL BRHMALMTYUX  476      
205-963 0 Birmingham AL BRHMALMTYUX  476   2020-05-22   
205-963 1 Birmingham AL BRHMALMTYUX  476   2020-05-22   
205-963 8 Birmingham AL BRHMALMTYUX  476   2020-05-22   
205-963 9 Birmingham AL BRHMALMTYUX  476   2020-05-22   
251-319 A Mobile AL MOBLALAZ20Z  480      
251-319 0 Mobile AL MOBLALAZ20Z  480   2020-05-22   
251-319 1 Mobile AL MOBLALAZ20Z  480   2020-05-22   
251-319 8 Mobile AL MOBLALAZ20Z  480   2020-05-22   
251-319 9 Mobile AL MOBLALAZ20Z  480   2020-05-22   
251-499 1 Mobile AL   480   2026-09-13   
251-499 2 Mobile AL   480   2026-09-13   
251-499 8 Mobile AL   480   2026-09-13   
483-900 A Montgomery AL   478   2026-10-08   
483-900 9 Montgomery AL   478   2026-10-08   
659-374 3 Birmingham AL   476   2026-09-10   
659-374 4 Birmingham AL   476   2026-09-10   
659-374 5 Birmingham AL   476   2026-09-10   

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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