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.

OCN: 473D CMC TELECOM, INC. - MI

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
517-925 0 Grand Ledge MI LNNGMIMNXLY  346      
810-377 2 Lexington MI SFLDMIMKDS1  340      
810-476 1 Applegate MI SFLDMIMKDS1  340      
810-644 4 Swartz Creek MI SFLDMIMKDS1  340      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.