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

NXX: 887

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-887 A Rockwell City IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630      
712-887 0 Rockwell City IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630      
712-887 1 Rockwell City IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630      
712-887 5 Rockwell City IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630   2023-04-15   
712-887 8 Rockwell City IA   145J TERRA NOVA TELECOM INC. 630   2025-05-17   

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

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