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: 940 [Rate centres in NPA 940] [Dial plan for NPA 940]

NXX: 545

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
940-545 A Seymour TX SYMRTXXA0MD  0132 AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX 548      
940-545 0 Seymour TX SYMRTXXA0MD  0132 AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX 548   2019-07-15   
940-545 1 Seymour TX   6271 UNITED STATES CELLULAR - TX 548   2025-02-28   
940-545 2 Seymour TX   6271 UNITED STATES CELLULAR - TX 548   2025-02-28   
940-545 3 Seymour TX   6271 UNITED STATES CELLULAR - TX 548   2025-02-28   
940-545 4 Seymour TX   6271 UNITED STATES CELLULAR - TX 548   2025-02-28   
940-545 5 Seymour TX   6271 UNITED STATES CELLULAR - TX 548   2025-02-28   
940-545 7 Seymour TX   5562 METROPCS, INC. 548   2025-05-12   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.