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.

Cedar Rapids, IA

<< 1 2 3 4 5 6 7 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
319-536 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2015-06-11   
319-536 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2015-09-15   
319-536 8   073H TELNYX LLC 635   2019-06-16   
319-536 9   423H AIRUS, INC - IA 635   2019-11-09   
319-538 A CDRRIADTKMD  221F ONVOY, LLC - IA 635      
319-538 0   221F ONVOY, LLC - IA 635   2008-02-15   
319-538 1   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2008-04-17   
319-538 2   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2008-06-30   
319-538 3   5562 METROPCS, INC. 635   2008-07-16   
319-538 4   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2008-08-14   
319-538 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2008-08-21   
319-538 6   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2008-09-04   
319-538 7   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2008-09-04   
319-538 8   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2009-09-26   
319-538 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2014-09-03   
319-540 A CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635      
319-540 0   6266 UNITED STATES CELLULAR - IA 635      
319-540 1   6266 UNITED STATES CELLULAR - IA 635      
319-540 2   6266 UNITED STATES CELLULAR - IA 635      
319-540 3   6266 UNITED STATES CELLULAR - IA 635      
319-540 4   6266 UNITED STATES CELLULAR - IA 635      
319-540 5   6266 UNITED STATES CELLULAR - IA 635      
319-540 6   6266 UNITED STATES CELLULAR - IA 635      
319-540 7   6266 UNITED STATES CELLULAR - IA 635   2011-09-22   
319-540 8   9877 LEVEL 3 COMMUNICATIONS, LLC - IA 635   2010-04-01   
319-540 9   6266 UNITED STATES CELLULAR - IA 635   2010-05-14   
319-550 A CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635      
319-550 0   6266 UNITED STATES CELLULAR - IA 635   2013-07-26   
319-550 1   6266 UNITED STATES CELLULAR - IA 635      
319-550 2   6266 UNITED STATES CELLULAR - IA 635      
319-550 3   6266 UNITED STATES CELLULAR - IA 635      
319-550 4   6266 UNITED STATES CELLULAR - IA 635      
319-550 5   6266 UNITED STATES CELLULAR - IA 635      
319-550 6   6266 UNITED STATES CELLULAR - IA 635      
319-550 7   6266 UNITED STATES CELLULAR - IA 635      
319-550 8   6266 UNITED STATES CELLULAR - IA 635      
319-550 9   6266 UNITED STATES CELLULAR - IA 635   2017-08-26   
319-551 A CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635      
319-558 A CDRRIADTDS0  9631 QWEST CORPORATION 635      
319-558 0   9631 QWEST CORPORATION 635      
319-558 1   9631 QWEST CORPORATION 635      
319-558 2   9631 QWEST CORPORATION 635      
319-558 3   9631 QWEST CORPORATION 635      
319-558 4   9631 QWEST CORPORATION 635      
319-558 5   9631 QWEST CORPORATION 635      
319-558 6   6266 UNITED STATES CELLULAR - IA 635   2004-07-25   
319-558 7   6266 UNITED STATES CELLULAR - IA 635   2004-07-25   
319-558 8   6266 UNITED STATES CELLULAR - IA 635   2004-07-25   
319-558 9   6266 UNITED STATES CELLULAR - IA 635   2004-07-25   
319-560 A CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635      
319-573 A CDRRIADTFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635      
319-582 A CDRRIADTX7X  996H AIRESPRING, INC. 635      
319-582 0   996H AIRESPRING, INC. 635   2018-10-21   
319-582 1   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2020-04-06   
319-582 2   5562 METROPCS, INC. 635   2020-01-20   
319-582 3   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2020-04-06   
319-582 4   221F ONVOY, LLC - IA 635   2021-02-18   
319-582 5   221F ONVOY, LLC - IA 635   2021-02-18   
319-582 6   221F ONVOY, LLC - IA 635   2021-02-18   
319-582 7   221F ONVOY, LLC - IA 635   2021-02-18   
319-582 8   221F ONVOY, LLC - IA 635   2021-02-18   
319-582 9   221F ONVOY, LLC - IA 635   2024-01-18   
319-640 A CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635      
319-640 0   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635      
319-640 1   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635      
319-640 2   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2014-07-21   
319-640 3   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2014-08-04   
319-640 4   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2017-09-23   
319-640 5   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635      
319-640 6   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635      
319-640 7   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635      
319-640 8   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635      
319-640 9   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635      
319-651 A CDRRIAAX7MD  6529 T-MOBILE USA, INC. 635      
319-651 0   5562 METROPCS, INC. 635   2006-12-03   
319-651 1   5562 METROPCS, INC. 635      
319-651 2   5562 METROPCS, INC. 635   2007-03-31   
319-651 3   5562 METROPCS, INC. 635      
319-651 4   5562 METROPCS, INC. 635      
319-651 5   5562 METROPCS, INC. 635      
319-651 6   5562 METROPCS, INC. 635      
319-651 7   5562 METROPCS, INC. 635      
319-651 8   5562 METROPCS, INC. 635      
319-651 9   6529 T-MOBILE USA, INC. 635      
319-654 A CDRRIAWSDS0  9631 QWEST CORPORATION 635      
319-654 0   9631 QWEST CORPORATION 635      
319-654 1   6529 T-MOBILE USA, INC. 635   2006-04-24   
319-654 2   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2018-05-21   
319-654 3   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2018-06-25   
319-654 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2009-01-05   
319-654 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2006-10-07   
319-654 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2006-10-07   
319-654 7   6529 T-MOBILE USA, INC. 635   2008-04-27   
319-654 8   9631 QWEST CORPORATION 635      
319-654 9   9631 QWEST CORPORATION 635      
319-693 A CDRRIADTFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635      
319-693 0   5562 METROPCS, INC. 635   2009-07-16   
319-693 1   5562 METROPCS, INC. 635   2009-08-29   
319-693 2   5562 METROPCS, INC. 635   2009-08-29   
319-693 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2010-10-06   

<< 1 2 3 4 5 6 7 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.