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.

Switch: STMCMDSMRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-745 A St Michaels MD 9212 VERIZON MARYLAND, INC. 242    

Last updated: Sat, 01 Dec 2018 01:51:37 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.