Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

NXX: 237

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-237 A Charlevoix MI CHVXMIMNRS0  9323 MICHIGAN BELL TEL CO 348      
231-237 0 Charlevoix MI CHVXMIMNRS0  9323 MICHIGAN BELL TEL CO 348      
231-237 1 Charlevoix MI CHVXMIMNRS0  9323 MICHIGAN BELL TEL CO 348      
231-237 2 Charlevoix MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-237 3 Charlevoix MI GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348      
231-237 4 Charlevoix MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-237 5 Charlevoix MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-237 6 Charlevoix MI TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS, LLC 348      
231-237 7 Charlevoix MI BRSPMI09DS0  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 348      
231-237 8 Charlevoix MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348      
231-237 9 Charlevoix MI CHVXMIMNRS0  9323 MICHIGAN BELL TEL CO 348      

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

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