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: 517 [Rate centres in NPA 517] [Dial plan for NPA 517]

NXX: 261

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-261 A Grand Ledge MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346      
517-261 0 Grand Ledge MI LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2023-09-03   
517-261 1 Grand Ledge MI LNNGMIMNXSZ  5562 METROPCS, INC. 346   2022-08-06   
517-261 2 Grand Ledge MI LNNGMIMN00Z  624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-261 3 Grand Ledge MI LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2023-07-02   
517-261 4 Grand Ledge MI LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2023-05-04   
517-261 5 Grand Ledge MI LNNGMIMN00Z  624H ONVOY SPECTRUM, LLC 346   2021-12-05   
517-261 6 Grand Ledge MI LNNGMIMN00Z  624H ONVOY SPECTRUM, LLC 346   2021-12-05   
517-261 8 Grand Ledge MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2020-12-20   
517-261 9 Grand Ledge MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2020-12-20   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.