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: 574 [Rate centres in NPA 574] [Dial plan for NPA 574]

NXX: 212

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
574-212 A Monterey IN SBNDIN053MD  4803 LEVEL 3 COMMUNICATIONS, LLC - IN 332      
574-212 0 Monterey IN SBNDIN053MD  4803 LEVEL 3 COMMUNICATIONS, LLC - IN 332      
574-212 4 Monterey IN SBNDIN053MD  4803 LEVEL 3 COMMUNICATIONS, LLC - IN 332   2004-05-27   
574-212 7 Monterey IN PLMOINXAXMD  7575 CENTURYLINK COMMUNICATIONS LLC 332   2014-04-17   
574-212 9 Monterey IN SBNDIN053MD  4803 LEVEL 3 COMMUNICATIONS, LLC - IN 332      

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.