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: 877

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-877 A Hull IA SXCYIADTWMD  965H FRACTEL, LLC 630      
712-877 6 Hull IA SXCYIADTX4X  516J TON80 COMMUNICATIONS, LLC 630   2022-04-21   
712-877 7 Hull IA SXCYIADTWMD  965H FRACTEL, LLC 630   2020-09-13   
712-877 8 Hull IA   145J TERRA NOVA TELECOM INC. 630   2025-05-17   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.