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: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

NXX: 445

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-445 A Cheboygan MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-445 0 Cheboygan MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-445 1 Cheboygan MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-445 2 Cheboygan MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-445 3 Cheboygan MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-445 4 Cheboygan MI   145J TERRA NOVA TELECOM INC. 348      
231-445 5 Cheboygan MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348      
231-445 6 Cheboygan MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-445 7 Cheboygan MI GDRPMIBL15Z  516C AT&T CORP. 348      
231-445 8 Cheboygan MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-445 9 Cheboygan MI GFTPMIEF1MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.