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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-689 3 White Cloud MI WHCLMIADRSA  9323 AMERITECH MICHIGAN 348      
231-689 4 White Cloud MI GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348   2005-02-18   
231-689 5 White Cloud MI WHCLMIADRSA  9323 AMERITECH MICHIGAN 348      
231-689 6 White Cloud MI WHCLMIADRSA  9323 AMERITECH MICHIGAN 348      
231-689 7 White Cloud MI WHCLMIADRSA  9323 AMERITECH MICHIGAN 348      
231-689 8 White Cloud MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2012-07-06   
231-689 9 White Cloud MI GDRPMIBL04Z  543C ONVOY, LLC - MI 348   2013-03-18   
231-690 A Ludington MI GDRPMIBLCM5  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-693 A Indian River MI GDRPMIIV1MD  2518 LUCRE, INC. 348      
231-694 A Beulah MI GDRPMIIV1MD  2518 LUCRE, INC. 348      
231-695 A Howard City MI GDRPMIBQDS1  4632 TELNET WORLDWIDE, INC. 348      
231-697 A Bellaire MI GDRPMIIV1MD  2518 LUCRE, INC. 348      
231-698 A Harrietta MI GDRPMIIV1MD  2518 LUCRE, INC. 348      
231-704 A Freesoil MI GDRPMIBL44Z  6630 USA MOBILITY WIRELESS, INC. 348      
231-707 A Newaygo MI GDRPMIBL04Z  543C ONVOY, LLC - MI 348      
231-707 0 Newaygo MI KNWDMIJDAMD  6664 SPRINT SPECTRUM L.P. 348   2017-04-06   
231-707 2 Newaygo MI GDRPMIBL04Z  543C ONVOY, LLC - MI 348   2020-11-14   
231-707 3 Newaygo MI GDRPMIBL04Z  543C ONVOY, LLC - MI 348   2020-11-14   
231-707 5 Newaygo MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2021-02-26   
231-707 7 Newaygo MI GDRPMIBL04Z  543C ONVOY, LLC - MI 348   2016-04-25   
231-707 8 Newaygo MI GDRPMIBL04Z  543C ONVOY, LLC - MI 348   2016-04-25   
231-709 A Traverse City MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-709 0 Traverse City MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-709 1 Traverse City MI TRCYMIMNOMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2010-05-19   
231-709 2 Traverse City MI TRCYMIMNOMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2010-05-19   
231-709 3 Traverse City MI TRCYMIMNOMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2009-09-17   
231-709 4 Traverse City MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2011-04-28   
231-709 5 Traverse City MI KNWDMIJDAMD  6664 SPRINT SPECTRUM L.P. 348   2010-07-14   
231-709 6 Traverse City MI GDRPMIBLXMZ  260E YMAX COMMUNICATIONS CORP. - MI 348   2010-03-27   
231-709 7 Traverse City MI KNWDMIJDAMD  6664 SPRINT SPECTRUM L.P. 348   2010-07-14   
231-709 8 Traverse City MI GDRPMIBLXMZ  260E YMAX COMMUNICATIONS CORP. - MI 348   2009-11-04   
231-709 9 Traverse City MI GDRPMIBLXMZ  260E YMAX COMMUNICATIONS CORP. - MI 348   2009-11-04   
231-712 A Muskegon MI GDRPMIBLXGZ  9748 AMERICAN MESSAGING SERVICES, LLC 348      
231-714 A Traverse City MI TRCYMIMNOMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-714 0 Traverse City MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2012-09-21   
231-714 1 Traverse City MI TRCYMIMNOMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-714 2 Traverse City MI TRCYMIMNOMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-714 3 Traverse City MI TRCYMIMNOMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-714 4 Traverse City MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2011-12-30   
231-714 5 Traverse City MI GDRPMIBL15Z  516C AT&T CORP. 348   2011-10-10   
231-714 6 Traverse City MI GDRPMIBL04Z  543C ONVOY, LLC - MI 348   2012-02-22   
231-714 7 Traverse City MI TRCYMIMNOMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2010-12-11   
231-714 8 Traverse City MI KNWDMIJDAMD  6664 SPRINT SPECTRUM L.P. 348   2011-07-17   
231-714 9 Traverse City MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2012-04-06   
231-715 A Traverse City MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-715 0 Traverse City MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-715 1 Traverse City MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2009-03-07   
231-715 2 Traverse City MI GDRPMIBLXMZ  260E YMAX COMMUNICATIONS CORP. - MI 348   2011-04-03   
231-715 3 Traverse City MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2011-08-27   
231-715 4 Traverse City MI GDRPMIBL06Z  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348   2015-06-23   

<< 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 >>

Last updated: Sun, 07 Feb 2021 01:52:50 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.