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: 254 [Rate centres in NPA 254] [Dial plan for NPA 254]

NXX: 803

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
254-803 A Marlin EACS TX MRLNTXMLRS0  9533 SOUTHWESTERN BELL 556      
254-803 0 Marlin EACS TX   6529 T-MOBILE USA, INC. 556   2021-09-21   
254-803 1 Marlin EACS TX   9533 SOUTHWESTERN BELL 556      
254-803 2 Marlin EACS TX   9533 SOUTHWESTERN BELL 556      
254-803 3 Marlin EACS TX   9533 SOUTHWESTERN BELL 556      
254-803 4 Marlin EACS TX   5562 METROPCS, INC. 556   2021-10-02   
254-803 5 Marlin EACS TX   9533 SOUTHWESTERN BELL 556      
254-803 6 Marlin EACS TX   145J TERRA NOVA TELECOM INC. 556   2021-09-28   
254-803 7 Marlin EACS TX   6529 T-MOBILE USA, INC. 556   2021-10-17   
254-803 8 Marlin EACS TX   5562 METROPCS, INC. 556   2021-10-02   
254-803 9 Marlin EACS TX   6529 T-MOBILE USA, INC. 556   2021-10-17   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.