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]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-259 7 Shelby MI TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS, LLC 348   2017-10-05   
231-259 8 Shelby MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2019-09-05   
231-259 9 Shelby MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2013-03-18   
231-260 A Muskegon MI GDRPMIBLXDZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-260 0 Muskegon MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2017-06-19   
231-260 1 Muskegon MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2017-06-19   
231-260 2 Muskegon MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2017-06-19   
231-260 3 Muskegon MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2018-10-18   
231-260 4 Muskegon MI GDRPMIBLXDZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2020-07-06   
231-260 5 Muskegon MI GDRPMIBLXDZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2020-07-06   
231-260 6 Muskegon MI GDRPMIBLXDZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2017-04-30   
231-260 7 Muskegon MI GDRPMIBLXDZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2017-04-30   
231-260 8 Muskegon MI GDRPMIBLXDZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2017-04-30   
231-260 9 Muskegon MI GDRPMIBLXDZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2017-04-30   
231-261 A Ludington MI MSKGMIXK5MD  116F PENINSULA FIBER NETWORK, LLC - MI 348      
231-261 0 Ludington MI MSKGMIXK5MD  116F PENINSULA FIBER NETWORK, LLC - MI 348   2019-02-21   
231-261 1 Ludington MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-06-14   
231-261 2 Ludington MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-06-14   
231-261 3 Ludington MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-06-17   
231-261 4 Ludington MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-02-04   
231-261 5 Ludington MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-02-04   
231-261 6 Ludington MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-02-04   
231-261 7 Ludington MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-09-12   
231-261 8 Ludington MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-09-12   
231-261 9 Ludington MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-06-17   
231-262 A Elmira MI GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348      
231-262 0 Elmira MI BRSPMI09DS0  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 348   2015-12-21   
231-262 1 Elmira MI GFTPMIEF1MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2012-10-05   
231-262 2 Elmira MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2020-02-25   
231-262 3 Elmira MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2020-11-09   
231-262 4 Elmira MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-07-22   
231-262 5 Elmira MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-05-09   
231-262 6 Elmira MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2019-09-05   
231-262 7 Elmira MI GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348   2005-03-14   
231-262 8 Elmira MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-12-28   
231-262 9 Elmira MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-12-28   
231-263 A Kingsley MI KGSLMIXIDS0  0705 CENTURY TEL CO NORTHERN MICHIGAN DBA CENTURYLINK 348      
231-263 0 Kingsley MI KGSLMIXIDS0  0705 CENTURY TEL CO NORTHERN MICHIGAN DBA CENTURYLINK 348      
231-263 1 Kingsley MI KGSLMIXIDS0  0705 CENTURY TEL CO NORTHERN MICHIGAN DBA CENTURYLINK 348      
231-263 2 Kingsley MI KGSLMIXIDS0  0705 CENTURY TEL CO NORTHERN MICHIGAN DBA CENTURYLINK 348      
231-263 3 Kingsley MI KGSLMIXIDS0  0705 CENTURY TEL CO NORTHERN MICHIGAN DBA CENTURYLINK 348      
231-263 4 Kingsley MI KGSLMIXIDS0  0705 CENTURY TEL CO NORTHERN MICHIGAN DBA CENTURYLINK 348      
231-263 5 Kingsley MI KGSLMIXIDS0  0705 CENTURY TEL CO NORTHERN MICHIGAN DBA CENTURYLINK 348      
231-263 6 Kingsley MI KGSLMIXIDS0  0705 CENTURY TEL CO NORTHERN MICHIGAN DBA CENTURYLINK 348      
231-263 7 Kingsley MI KGSLMIXIDS0  0705 CENTURY TEL CO NORTHERN MICHIGAN DBA CENTURYLINK 348      
231-263 8 Kingsley MI GFTPMIEF1MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2013-03-13   
231-263 9 Kingsley MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2016-08-06   
231-264 A Elk Rapids MI ELKRMIMNDS0  9323 MICHIGAN BELL TEL CO 348      
231-264 0 Elk Rapids MI ELKRMIMNDS0  9323 MICHIGAN BELL TEL CO 348      
231-264 1 Elk Rapids MI GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348   2004-10-22   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.