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.

Waterloo, IA

1 2 3 4 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
319-215 A CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635      
319-215 0 CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635   2005-04-28   
319-215 1 CDRRIADTFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2008-05-10   
319-215 2 CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635   2005-04-28   
319-215 3 CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2005-02-01   
319-215 4 CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635   2005-02-01   
319-215 5 CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635   2005-04-28   
319-215 6 CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635   2005-04-28   
319-215 7 CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635   2005-04-28   
319-215 8 CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635   2005-04-28   
319-215 9 CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635   2005-04-28   
319-226 A WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-229 A CDRRIADTFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635      
319-229 0 CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2015-10-28   
319-229 1 CDRRIAAXQMD  444G AUREON COMMUNICATIONS, LLC 635   2014-12-26   
319-229 2 CDRRIADTNMD  985E BANDWIDTH.COM CLEC, LLC - IA 635   2015-03-07   
319-229 3 CDRRIADTFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2014-11-07   
319-229 4 CDRRIADTFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2014-11-07   
319-229 5 CDRRIADTNMD  985E BANDWIDTH.COM CLEC, LLC - IA 635   2015-03-07   
319-229 6 CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2015-05-10   
319-229 7 CDRRIADTKMD  221F ONVOY, LLC - IA 635   2014-11-07   
319-229 8 CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2016-06-08   
319-229 9 CDRRIADTFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2014-09-29   
319-230 A CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635      
319-231 A CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635      
319-231 0   6266 UNITED STATES CELLULAR - IA 635      
319-231 1   6266 UNITED STATES CELLULAR - IA 635      
319-231 2   6266 UNITED STATES CELLULAR - IA 635      
319-231 3   6266 UNITED STATES CELLULAR - IA 635      
319-231 4   6266 UNITED STATES CELLULAR - IA 635      
319-231 5   6266 UNITED STATES CELLULAR - IA 635      
319-231 6   6266 UNITED STATES CELLULAR - IA 635      
319-231 7   6266 UNITED STATES CELLULAR - IA 635      
319-231 8   6266 UNITED STATES CELLULAR - IA 635      
319-231 9   6266 UNITED STATES CELLULAR - IA 635      
319-232 A WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-233 A WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-234 A WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-235 A WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-236 A WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-239 A CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635      
319-239 0   6266 UNITED STATES CELLULAR - IA 635      
319-239 1   6266 UNITED STATES CELLULAR - IA 635      
319-239 2   6266 UNITED STATES CELLULAR - IA 635      
319-239 3   6266 UNITED STATES CELLULAR - IA 635      
319-239 4   6266 UNITED STATES CELLULAR - IA 635      
319-239 5   6266 UNITED STATES CELLULAR - IA 635      
319-239 6   6266 UNITED STATES CELLULAR - IA 635      
319-239 7   6266 UNITED STATES CELLULAR - IA 635      
319-239 8   6266 UNITED STATES CELLULAR - IA 635      
319-239 9   6266 UNITED STATES CELLULAR - IA 635      
319-240 A CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635      
319-240 0   6266 UNITED STATES CELLULAR - IA 635      
319-240 1   6266 UNITED STATES CELLULAR - IA 635      
319-240 2   6266 UNITED STATES CELLULAR - IA 635      
319-240 3   6266 UNITED STATES CELLULAR - IA 635      
319-240 4   6266 UNITED STATES CELLULAR - IA 635      
319-240 5   6266 UNITED STATES CELLULAR - IA 635      
319-240 6   6266 UNITED STATES CELLULAR - IA 635      
319-240 7   6266 UNITED STATES CELLULAR - IA 635      
319-240 8   6266 UNITED STATES CELLULAR - IA 635      
319-240 9   6266 UNITED STATES CELLULAR - IA 635      
319-252 A CDRRIADTFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635      
319-252 0 CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2017-04-30   
319-252 1 IWCYIA70DS0  423H AIRUS, INC - IA 635   2018-02-16   
319-252 2 CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2017-08-28   
319-252 3 CDRRIADTFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2016-08-15   
319-252 4 CDRRIAIC2MD  593K MCC TELEPHONY LLC 635   2016-11-24   
319-252 5 CDRRIADTFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2016-08-13   
319-252 6 CDRRIADTFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2016-08-13   
319-252 7 CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2018-03-09   
319-252 8 CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2018-04-16   
319-252 9 CDRRIADTFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2019-04-16   
319-269 A CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635      
319-269 0   6266 UNITED STATES CELLULAR - IA 635      
319-269 1   6266 UNITED STATES CELLULAR - IA 635      
319-269 2   6266 UNITED STATES CELLULAR - IA 635      
319-269 3   6266 UNITED STATES CELLULAR - IA 635      
319-269 4   6266 UNITED STATES CELLULAR - IA 635      
319-269 5   6266 UNITED STATES CELLULAR - IA 635      
319-269 6   6266 UNITED STATES CELLULAR - IA 635      
319-269 7   6266 UNITED STATES CELLULAR - IA 635      
319-269 8   6266 UNITED STATES CELLULAR - IA 635      
319-269 9   6266 UNITED STATES CELLULAR - IA 635      
319-272 A WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-274 A WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-274 0 WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-274 1 WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-274 2 WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-274 3 WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-274 4 WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-274 5 WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-274 6 WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-274 7 WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-274 8 WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-274 9 CDRRIAIC2MD  593K MCC TELEPHONY LLC 635   2006-06-23   
319-287 A WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-290 A CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635      
319-291 A WTRLIADTDS1  9631 QWEST CORPORATION 635      
319-292 A WTRLIADTDS1  9631 QWEST CORPORATION 635      

1 2 3 4 >>

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.