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: 550

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
254-550 A Waco TX WACOTX01XCY  624H ONVOY SPECTRUM, LLC 556      
254-550 0 Waco TX WACOTXEI8MD  5562 METROPCS, INC. 556   2021-11-05   
254-550 1 Waco TX WACOTXEI8MD  5562 METROPCS, INC. 556   2021-11-05   
254-550 2 Waco TX WACOTX01XCY  624H ONVOY SPECTRUM, LLC 556   2021-05-23   
254-550 3 Waco TX WACOTX01XCY  624H ONVOY SPECTRUM, LLC 556   2021-05-23   
254-550 4 Waco TX WACOTX01XCY  624H ONVOY SPECTRUM, LLC 556   2020-07-07   
254-550 5 Waco TX WACOTX01XCY  624H ONVOY SPECTRUM, LLC 556   2019-11-24   
254-550 6 Waco TX WACOTX01XCY  624H ONVOY SPECTRUM, LLC 556   2020-07-07   
254-550 7 Waco TX WACOTX01XCY  624H ONVOY SPECTRUM, LLC 556   2020-07-07   
254-550 8 Waco TX WACOTX01XIX  903C ONVOY, LLC - TX 556   2023-03-06   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.