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.

Dubuque, IA

<< 1 2 3 4 5 6 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
563-500 8 DVNPIAEAXMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 634   2020-04-20   
563-500 9 DVNPIAEAXMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 634   2020-05-25   
563-513 A DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-513 0 DVNPIADTGMD  221F ONVOY, LLC - IA 634   2015-01-29   
563-513 1 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634   2007-03-30   
563-513 2 DVNPIADTGMD  221F ONVOY, LLC - IA 634   2015-02-11   
563-513 3 MNPLIAXCJMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 634   2015-03-11   
563-513 4 MNPLIAXCJMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 634   2015-07-10   
563-513 5 DVNPIAEAXMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 634   2015-08-17   
563-513 6 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634   2015-10-05   
563-513 7 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634   2007-03-30   
563-513 8 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634   2007-03-30   
563-513 9 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634   2007-03-30   
563-542 A DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-542 0 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-542 1 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-542 2 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-542 3 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-542 4 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-542 5 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-542 6 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-542 7 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-542 8 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-542 9 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-543 A DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-543 0 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-543 1 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-543 2 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-543 3 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-543 4 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-543 5 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-543 6 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-543 7 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-543 8 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-543 9 DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-552 A DUBQIANWRS5  9631 QWEST CORPORATION 634      
563-552 0 DVNPIADTX5X  985E BANDWIDTH.COM CLEC, LLC - IA 634   2011-06-22   
563-552 1 DUBQIANWRS5  9631 QWEST CORPORATION 634      
563-552 2 DUBQIANWRS5  9631 QWEST CORPORATION 634      
563-552 3 DUBQIATCDS0  9631 QWEST CORPORATION 634   2004-05-17   
563-552 4 DUBQIATCDS0  9631 QWEST CORPORATION 634   2004-05-17   
563-552 5 DUBQIATCDS0  9631 QWEST CORPORATION 634   2004-05-17   
563-552 6 DVNPIAEAXMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 634   2008-07-17   
563-552 7 DVNPIADTGMD  221F ONVOY, LLC - IA 634   2008-02-28   
563-552 8 DVNPIAEAXMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 634   2011-06-20   
563-552 9 DVNPIA80XPX  5562 METROPCS, INC. 634   2011-10-10   
563-556 A DUBQIATCDS0  9631 QWEST CORPORATION 634      
563-557 A DUBQIATCDS0  9631 QWEST CORPORATION 634      
563-564 A DVNPIA80XPX  6529 T-MOBILE USA, INC. 634      
563-564 0 DVNPIA80XPX  5562 METROPCS, INC. 634      

<< 1 2 3 4 5 6 >>

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.