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: 712 [Rate centres in NPA 712] [Dial plan for NPA 712]

NXX: 438

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-438 A Clarinda IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 644      
712-438 0 Clarinda IA CRRLIAAF0MD  6266 UNITED STATES CELLULAR - IA 644      
712-438 1 Clarinda IA CRRLIAAF0MD  6266 UNITED STATES CELLULAR - IA 644      
712-438 2 Clarinda IA CRRLIAAF0MD  6266 UNITED STATES CELLULAR - IA 644      
712-438 3 Clarinda IA OMAHNENWYMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 644      
712-438 7 Clarinda IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 644      
712-438 8 Clarinda IA OMAHNENWXPX  221F ONVOY, LLC - IA 644      
712-438 9 Clarinda IA OMAHNENWXPX  221F ONVOY, LLC - IA 644      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.