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: 208 [Rate centres in NPA 208] [Dial plan for NPA 208]

NXX: 504

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
208-504 A Caldwell ID BOISIDMAXIX  689F ONVOY, LLC - ID 652      
208-504 0 Caldwell ID BOISIDMAXIX  689F ONVOY, LLC - ID 652   2016-04-18   
208-504 1 Caldwell ID BOISIDMAXIX  689F ONVOY, LLC - ID 652   2016-04-18   
208-504 2 Caldwell ID BOISIDPZDS1  579H AIRUS, INC. - ID 652   2018-02-24   
208-504 3 Caldwell ID BOISIDPZ4MD  073H TELNYX LLC 652   2018-04-25   
208-504 4 Caldwell ID BOISIDMAXNX  808G TELEPORT COMMUNICATIONS AMERICA, LLC - ID 652   2016-06-10   
208-504 5 Caldwell ID BOISIDMAAMD  6010 NEW CINGULAR WIRELESS PCS, LLC 652   2019-09-24   
208-504 6 Caldwell ID BOISIDMAAMD  6010 NEW CINGULAR WIRELESS PCS, LLC 652   2018-04-04   
208-504 7 Caldwell ID BOISIDMAAMD  6010 NEW CINGULAR WIRELESS PCS, LLC 652   2017-07-25   
208-504 8 Caldwell ID BOISIDMAAMD  6010 NEW CINGULAR WIRELESS PCS, LLC 652   2016-09-14   
208-504 9 Caldwell ID BOISIDMAAMD  6010 NEW CINGULAR WIRELESS PCS, LLC 652   2016-04-29   

Last updated: Fri, 23 Jul 2021 12:43:22 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.