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.

Bell Oak, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
517-468 A BLOKMIXIRP0  0726 SHIAWASSEE TEL. CO. 346      
517-468 0 BLOKMIXIRP0  0726 SHIAWASSEE TEL. CO. 346      
517-468 1 BLOKMIXIRP0  0726 SHIAWASSEE TEL. CO. 346      
517-468 2 BLOKMIXIRP0  0726 SHIAWASSEE TEL. CO. 346      
517-468 3 BLOKMIXIRP0  0726 SHIAWASSEE TEL. CO. 346      
517-468 6 LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2020-06-08   
517-468 7 LNNGMIDCDMD  516J TON80 COMMUNICATIONS, LLC 346   2022-04-21   
517-468 8 LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2020-11-27   
517-468 9 LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2020-11-27   
517-972 A MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-972 2 MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-972 3 MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-972 4 MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-972 5 LNNGMIMN00Z  624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-972 7 MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-972 9 MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.