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: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

NXX: 529

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-529 A Brutus MI BRTSMIXIDS0  0702 CENTURYTEL OF MICHIGAN, INC. DBA CENTURYLINK 348      
231-529 0 Brutus MI BRTSMIXIDS0  0702 CENTURYTEL OF MICHIGAN, INC. DBA CENTURYLINK 348      
231-529 1 Brutus MI BRTSMIXIDS0  0702 CENTURYTEL OF MICHIGAN, INC. DBA CENTURYLINK 348      
231-529 2 Brutus MI BRTSMIXIDS0  0702 CENTURYTEL OF MICHIGAN, INC. DBA CENTURYLINK 348      
231-529 3 Brutus MI BRTSMIXIDS0  0702 CENTURYTEL OF MICHIGAN, INC. DBA CENTURYLINK 348      
231-529 4 Brutus MI TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS, LLC 348   2015-10-16   
231-529 5 Brutus MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2019-09-05   
231-529 6 Brutus MI BRTSMIXIDS0  0702 CENTURYTEL OF MICHIGAN, INC. DBA CENTURYLINK 348      
231-529 7 Brutus MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2019-08-05   
231-529 8 Brutus MI BRTSMIXIDS0  0702 CENTURYTEL OF MICHIGAN, INC. DBA CENTURYLINK 348      
231-529 9 Brutus MI BRTSMIXIDS0  0702 CENTURYTEL OF MICHIGAN, INC. DBA CENTURYLINK 348      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.