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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-252 7 Traverse City MI TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS, LLC 348   2016-08-06   
231-252 8 Traverse City MI   792K CHARTER IP ENABLED SERVICES, LLC 348   2017-07-02   
231-252 9 Traverse City MI   792K CHARTER IP ENABLED SERVICES, LLC 348   2017-07-09   
231-253 A Cadillac MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-253 0 Cadillac MI GDRPMIBL06Z  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348   2019-12-09   
231-253 1 Cadillac MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2020-01-15   
231-253 2 Cadillac MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2020-01-15   
231-253 3 Cadillac MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2019-06-09   
231-253 4 Cadillac MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2019-09-03   
231-253 5 Cadillac MI GDRPMIBL31Z  5562 METROPCS, INC. 348   2021-09-28   
231-253 6 Cadillac MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2019-01-07   
231-253 7 Cadillac MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2019-01-07   
231-253 8 Cadillac MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2019-01-07   
231-253 9 Cadillac MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2019-01-07   
231-254 A Petoskey MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-254 0 Petoskey MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2020-11-19   
231-254 1 Petoskey MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2020-11-19   
231-254 2 Petoskey MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2020-11-19   
231-254 3 Petoskey MI GDRPMIBL31Z  5562 METROPCS, INC. 348   2021-03-14   
231-254 4 Petoskey MI GDRPMIBL31Z  5562 METROPCS, INC. 348   2021-03-14   
231-254 5 Petoskey MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2020-06-28   
231-254 6 Petoskey MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2019-12-26   
231-254 7 Petoskey MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2019-12-26   
231-254 8 Petoskey MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2019-12-26   
231-254 9 Petoskey MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2019-12-26   
231-255 A Onekama MI GDRPMIBL44Z  6630 USA MOBILITY WIRELESS, INC. 348      
231-256 A Lake Leelanau MI LKLLMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-256 0 Lake Leelanau MI LKLLMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-256 1 Lake Leelanau MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2004-11-12   
231-256 2 Lake Leelanau MI LKLLMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-256 3 Lake Leelanau MI GDRPMIBL52Z  829J PAETEC ITEL, LLC 348   2004-02-03   
231-256 4 Lake Leelanau MI   279B CLEAR RATE COMMUNICATIONS, INC. - MI 348   2013-03-07   
231-256 5 Lake Leelanau MI GDRPMIBL06Z  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348   2013-08-06   
231-256 6 Lake Leelanau MI TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS, LLC 348   2015-09-15   
231-256 7 Lake Leelanau MI LKLLMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-256 8 Lake Leelanau MI LKLLMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-256 9 Lake Leelanau MI LKLLMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-257 A Lake City MI LKCYMIXI2MD  116F PENINSULA FIBER NETWORK, LLC - MI 348      
231-257 0 Lake City MI LKCYMIXI2MD  116F PENINSULA FIBER NETWORK, LLC - MI 348   2019-04-19   
231-257 4 Lake City MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2022-05-14   
231-258 A Kalkaska MI KLKSMIKKDS0  9323 MICHIGAN BELL TEL CO 348      
231-259 A Shelby MI   792K CHARTER IP ENABLED SERVICES, LLC 348      
231-259 0 Shelby MI   792K CHARTER IP ENABLED SERVICES, LLC 348   2007-04-05   
231-259 1 Shelby MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2016-02-24   
231-259 2 Shelby MI GDRPMIBLX8Z  2550 123.NET, LLC 348   2016-01-22   
231-259 3 Shelby MI GDRQMIBODS0  7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 348   2016-05-02   
231-259 4 Shelby MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2016-02-24   
231-259 5 Shelby MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2008-02-27   
231-259 6 Shelby MI GDRPMIBL06Z  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348   2016-03-21   
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 GDRPMIBL31Z  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 GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2020-07-06   
231-260 5 Muskegon MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2020-07-06   
231-260 6 Muskegon MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2017-04-30   
231-260 7 Muskegon MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2017-04-30   
231-260 8 Muskegon MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2017-04-30   
231-260 9 Muskegon MI GDRPMIBL31Z  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   792K CHARTER IP ENABLED SERVICES, LLC 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 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 0 Kingsley MI KGSLMIXIDS0  0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 1 Kingsley MI KGSLMIXIDS0  0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 2 Kingsley MI KGSLMIXIDS0  0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 3 Kingsley MI KGSLMIXIDS0  0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 4 Kingsley MI KGSLMIXIDS0  0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 5 Kingsley MI KGSLMIXIDS0  0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 6 Kingsley MI KGSLMIXIDS0  0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 7 Kingsley MI KGSLMIXIDS0  0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-263 8 Kingsley MI   792K CHARTER IP ENABLED SERVICES, LLC 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   
231-264 2 Elk Rapids MI BRSPMI09DS0  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 348   2015-12-21   

<< 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 >>

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.