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: 641

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-641 A Corsicana TX CRSCTXTRDS0  9533 SOUTHWESTERN BELL 552      
903-641 0 Corsicana TX   9533 SOUTHWESTERN BELL 552      
903-641 1 Corsicana TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2004-03-13   
903-641 2 Corsicana TX   9533 SOUTHWESTERN BELL 552      
903-641 3 Corsicana TX   9533 SOUTHWESTERN BELL 552      
903-641 4 Corsicana TX   9533 SOUTHWESTERN BELL 552      
903-641 5 Corsicana TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2003-07-16   
903-641 6 Corsicana TX   9533 SOUTHWESTERN BELL 552      
903-641 7 Corsicana TX   9533 SOUTHWESTERN BELL 552      
903-641 8 Corsicana TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2003-07-16   
903-641 9 Corsicana TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2004-03-13   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.