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: 903 [Rate centres in NPA 903] [Dial plan for NPA 903]

NXX: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-600 A Rice TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
903-600 0 Rice TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
903-600 1 Rice TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
903-600 2 Rice TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552      
903-600 3 Rice TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
903-600 4 Rice TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552      
903-600 5 Rice TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
903-600 6 Rice TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
903-600 7 Rice TX FTWQTXFH0MD  508J CENTURYLINK COMMUNICATIONS, LLC 552      
903-600 8 Rice TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
903-600 9 Rice TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.