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.

Switch: DTRTALXARS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
205-273 A Detroit AL 9789 CENTURYTEL TEL AL LLC (NORTHERN) DBA CENTURYLINK 476      
205-273 4 Detroit AL 9789 CENTURYTEL TEL AL LLC (NORTHERN) DBA CENTURYLINK 476      

Last updated: Thu, 04 Aug 2022 23:14:42 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.