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: 704

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
574-704 A Plymouth IN PLMOINXAXMD  508J CENTURYLINK COMMUNICATIONS, LLC 332      
574-704 3 Plymouth IN SBNDIN01X1X  7440 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 332   2018-04-30   
574-704 7 Plymouth IN PLMOINXAXMD  508J CENTURYLINK COMMUNICATIONS, LLC 332   2014-01-13   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.