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: 715 [Rate centres in NPA 715] [Dial plan for NPA 715]

NXX: 721

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
715-721 A Colby WI GNBYWIEL1MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 350      
715-721 0 Colby WI GNBYWI01XMX  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 350   2013-11-20   
715-721 1 Colby WI WAUSWIAY2MD  9759 METRO SOUTHWEST PCS, LLP 350   2015-01-04   
715-721 2 Colby WI GNBYWIEL1MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 350   2013-08-17   
715-721 3 Colby WI APPLWI01X9X  007F BANDWIDTH.COM CLEC, LLC - WI 350   2016-09-22   
715-721 4 Colby WI APPLWI01X9X  007F BANDWIDTH.COM CLEC, LLC - WI 350   2018-06-01   
715-721 5 Colby WI GNBYWI01XMX  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 350   2018-01-02   
715-721 6 Colby WI GNBYWI01XMX  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 350   2015-07-17   
715-721 7 Colby WI CRVTWIXA4MD  508J CENTURYLINK COMMUNICATIONS, LLC 350   2014-11-26   
715-721 8 Colby WI STPTWI01HMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 350   2018-11-09   
715-721 9 Colby WI MNSHWIDQCM0  6274 UNITED STATES CELLULAR - WI 350   2019-06-24   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.