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: 248 [Rate centres in NPA 248] [Dial plan for NPA 248]

NXX: 491

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
248-491 A South Lyon MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-491 0 South Lyon MI DTRTMIBHMMD  1200 TALK AMERICA INC. - MI 340   2005-09-01   
248-491 1 South Lyon MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-07-21   
248-491 2 South Lyon MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2022-01-10   
248-491 3 South Lyon MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2010-02-21   
248-491 4 South Lyon MI   145J TERRA NOVA TELECOM INC. 340   2021-10-27   
248-491 5 South Lyon MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2021-12-28   
248-491 6 South Lyon MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2021-12-28   
248-491 7 South Lyon MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-491 8 South Lyon MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2011-03-27   
248-491 9 South Lyon MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2022-01-10   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.