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: 641

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-641 A Bath MI BATHMIXGRS0  0695 FRONTIER NORTH, INC. - MI 346      
517-641 0 Bath MI LNNGMIDCHMD  4632 TELNET WORLDWIDE, INC. 346   2005-09-03   
517-641 1 Bath MI LNNGMIMN00Z  624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-641 2 Bath MI LNNGMIVE2MD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346   2007-11-14   
517-641 3 Bath MI   279B CLEAR RATE COMMUNICATIONS, INC. - MI 346   2009-11-16   
517-641 4 Bath MI BATHMIXGRS0  0695 FRONTIER NORTH, INC. - MI 346      
517-641 5 Bath MI LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2007-03-05   
517-641 6 Bath MI BATHMIXGRS0  0695 FRONTIER NORTH, INC. - MI 346      
517-641 7 Bath MI BATHMIXGRS0  0695 FRONTIER NORTH, INC. - MI 346      
517-641 8 Bath MI BATHMIXGRS0  0695 FRONTIER NORTH, INC. - MI 346      
517-641 9 Bath MI LNNGMIMN02Z  318J COMCAST IP PHONE, LLC 346   2008-12-26   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.