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: 997

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-997 A Whitewright TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
903-997 0 Whitewright TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552      
903-997 1 Whitewright TX DLLSTXRIXIY  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 552      
903-997 2 Whitewright TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
903-997 3 Whitewright TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
903-997 5 Whitewright TX DLLSTX97X9X  516J TON80 COMMUNICATIONS, LLC 552      
903-997 8 Whitewright TX   624H ONVOY SPECTRUM, LLC 552      
903-997 9 Whitewright TX   145J TERRA NOVA TELECOM INC. 552      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.