Local Calling Guide

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

NXX: 420

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-420 A Onawa IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630      
712-420 0 Onawa IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630      
712-420 1 Onawa IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630      
712-420 2 Onawa IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630      
712-420 3 Onawa IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630      
712-420 4 Onawa IA   145J TERRA NOVA TELECOM INC. 630   2023-06-24   
712-420 5 Onawa IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630      
712-420 6 Onawa IA   145J TERRA NOVA TELECOM INC. 630   2022-04-09   
712-420 7 Onawa IA   145J TERRA NOVA TELECOM INC. 630   2022-11-02   
712-420 8 Onawa IA SXCYIA78X9X  6529 T-MOBILE USA, INC. 630   2024-09-12   
712-420 9 Onawa IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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