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.

Region: IA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
563-521 6 Maquoketa IA DVNPIAEAEMD  8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 634   2019-04-18   
563-521 7 Maquoketa IA DVNPIAEAGMD  508J CENTURYLINK COMMUNICATIONS, LLC 634   2016-11-17   
563-521 8 Maquoketa IA DVNPIADTXLX  624H ONVOY SPECTRUM, LLC 634   2021-11-03   
563-521 9 Maquoketa IA DVNPIADTXLX  624H ONVOY SPECTRUM, LLC 634   2021-11-03   
563-522 A Low Moor IA LWMRIAXORS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 634      
563-522 0 Low Moor IA MNPLIAXCBMD  751F MCC TELEPHONY OF IOWA, LLC - IA 634   2010-04-15   
563-522 1 Low Moor IA LWMRIAXORS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 634      
563-522 2 Low Moor IA LWMRIAXORS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 634      
563-522 3 Low Moor IA LWMRIAXORP0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 634      
563-522 4 Low Moor IA DVNPIADTGMD  221F ONVOY, LLC - IA 634   2021-03-14   
563-522 5 Low Moor IA DVNPIADTGMD  221F ONVOY, LLC - IA 634   2020-06-27   
563-522 6 Low Moor IA DVNPIA80XUX  490J DISH WIRELESS, LLC 634   2023-06-03   
563-522 7 Low Moor IA DVNPIAEAGMD  508J CENTURYLINK COMMUNICATIONS, LLC 634   2016-10-06   
563-522 8 Low Moor IA MNPLIAXCGMD  624H ONVOY SPECTRUM, LLC 634   2024-12-19   
563-522 9 Low Moor IA LWMRIAXORS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 634      
563-526 A Davenport IA DVNPIADTXOX  197D VONAGE AMERICA LLC 634      
563-526 0 Davenport IA DVNPIADTXOX  197D VONAGE AMERICA LLC 634   2018-08-03   
563-526 1 Davenport IA DVNPIADTGMD  221F ONVOY, LLC - IA 634   2019-09-19   
563-526 2 Davenport IA DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634   2024-10-31   
563-526 3 Davenport IA DVNPIAEAXMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 634   2019-05-06   
563-526 4 Davenport IA DVNPIADTGMD  221F ONVOY, LLC - IA 634   2019-09-19   
563-526 5 Davenport IA DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634   2024-10-31   
563-526 6 Davenport IA DVNPIAEAEMD  8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 634   2019-02-28   
563-526 7 Davenport IA DVNPIADTGMD  221F ONVOY, LLC - IA 634   2019-09-19   
563-526 8 Davenport IA DVNPIADTGMD  221F ONVOY, LLC - IA 634   2023-02-05   
563-526 9 Davenport IA   624H ONVOY SPECTRUM, LLC 634   2025-05-15   
563-528 A Davenport IA DVNPIA80XPX  6529 T-MOBILE USA, INC. 634      
563-528 0 Davenport IA DVNPIA80XPX  6529 T-MOBILE USA, INC. 634      
563-528 1 Davenport IA DVNPIA80XPX  5562 METROPCS, INC. 634      
563-528 2 Davenport IA MNPLIAXCJMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 634   2004-12-30   
563-528 3 Davenport IA MNPLIAXCJMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 634   2005-12-15   
563-528 4 Davenport IA MNPLIAXCJMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 634   2006-06-23   
563-528 5 Davenport IA DVNPIA80XPX  6529 T-MOBILE USA, INC. 634      
563-528 6 Davenport IA DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634   2024-10-31   
563-528 7 Davenport IA DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634   2024-10-31   
563-528 8 Davenport IA DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634   2024-10-31   
563-528 9 Davenport IA MNPLIAXCJMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 634   2006-09-08   
563-529 A Davenport IA DVNPIA80XPX  6529 T-MOBILE USA, INC. 634      
563-529 0 Davenport IA DVNPIA80XPX  6529 T-MOBILE USA, INC. 634      
563-529 1 Davenport IA DVNPIA80XPX  5562 METROPCS, INC. 634      
563-529 2 Davenport IA DVNPIA80XPX  5562 METROPCS, INC. 634      
563-529 3 Davenport IA DVNPIA80XPX  5562 METROPCS, INC. 634      
563-529 4 Davenport IA DVNPIA80XPX  5562 METROPCS, INC. 634      
563-529 5 Davenport IA DVNPIA80XPX  5562 METROPCS, INC. 634      
563-529 6 Davenport IA DVNPIA80XPX  5562 METROPCS, INC. 634      
563-529 7 Davenport IA DVNPIA80XPX  6529 T-MOBILE USA, INC. 634      
563-529 8 Davenport IA DVNPIA80XPX  6529 T-MOBILE USA, INC. 634      
563-529 9 Davenport IA DVNPIA80XPX  6529 T-MOBILE USA, INC. 634      
563-532 A Ossian IA OSSIIAXORS0  1346 ACE TEL. ASSN. - IA 635      
563-534 A Fort Atkinson IA FTATIAXORS0  1346 ACE TEL. ASSN. - IA 635      
563-535 A Waterville IA WTVLIAXORS0  1346 ACE TEL. ASSN. - IA 635      
563-536 A Farmersburg IA FMBGIAXORS6  1230 NORTHEAST IOWA TEL. CO. 635      
563-537 A Monona IA WUNNIA021MD  6529 T-MOBILE USA, INC. 635      
563-538 A Lansing IA LNNGIACORS5  9631 QWEST CORPORATION 635      
563-538 0 Lansing IA CDRRIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 635   2010-04-01   
563-538 1 Lansing IA CDRRIADTNMD  985E BANDWIDTH.COM CLEC, LLC - IA 635   2012-01-05   
563-538 2 Lansing IA   593K MCC TELEPHONY LLC 635   2012-08-16   
563-538 3 Lansing IA LNNGIACORS5  9631 QWEST CORPORATION 635      
563-538 4 Lansing IA LNNGIACORS5  9631 QWEST CORPORATION 635      
563-538 5 Lansing IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2014-11-07   
563-538 6 Lansing IA CDRRIADTNMD  985E BANDWIDTH.COM CLEC, LLC - IA 635   2015-02-16   
563-538 7 Lansing IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2008-09-04   
563-538 8 Lansing IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2013-04-04   
563-538 9 Lansing IA LNNGIACORS5  9631 QWEST CORPORATION 635      
563-539 A Monona IA MONNIAXODS1  1230 NORTHEAST IOWA TEL. CO. 635      
563-540 A Waukon IA CDRRIADTHMD  624H ONVOY SPECTRUM, LLC 635      
563-540 0 Waukon IA   6266 UNITED STATES CELLULAR - IA 635   2025-08-15   
563-540 1 Waukon IA CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2024-01-29   
563-540 2 Waukon IA   6529 T-MOBILE USA, INC. 635   2025-06-01   
563-540 3 Waukon IA   6529 T-MOBILE USA, INC. 635   2025-06-01   
563-540 4 Waukon IA   5562 METROPCS, INC. 635   2025-06-01   
563-540 5 Waukon IA CDRRIADTHMD  624H ONVOY SPECTRUM, LLC 635   2021-08-21   
563-540 6 Waukon IA   5562 METROPCS, INC. 635   2025-06-01   
563-540 7 Waukon IA   515J IP HORIZON LLC 635   2025-08-21   
563-540 8 Waukon IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2025-06-30   
563-540 9 Waukon IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2025-10-16   
563-542 A Dubuque IA DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-543 A Dubuque IA DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-544 A New Albin IA NWALIAXORS0  1346 ACE TEL. ASSN. - IA 635      
563-546 A Highlandville IA HLDVIAXORS1  1346 ACE TEL. ASSN. - IA 635      
563-547 A Cresco IA CRESIAXODS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 635      
563-547 0 Cresco IA CDRRIAAX7MD  6529 T-MOBILE USA, INC. 635   2005-03-10   
563-547 1 Cresco IA CRESIAXODS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 635      
563-547 2 Cresco IA CRESIAXODS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 635      
563-547 3 Cresco IA CRESIAXODS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 635      
563-547 4 Cresco IA CRESIAXODS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 635      
563-547 5 Cresco IA CRESIAXODS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 635      
563-547 6 Cresco IA CRESIAXODS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 635      
563-547 7 Cresco IA CRESIAXODS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 635      
563-547 8 Cresco IA CDRRIAAX7MD  6529 T-MOBILE USA, INC. 635   2005-03-10   
563-547 9 Cresco IA CRESIAXODS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 635      
563-549 A Davenport IA DVNPIAEAEMD  8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 634      
563-549 0 Davenport IA DVNPIAEAXMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 634   2012-03-22   
563-549 1 Davenport IA DVNPIA80XPX  6529 T-MOBILE USA, INC. 634   2012-12-06   
563-549 2 Davenport IA MNPLIAXCJMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 634   2014-12-31   
563-549 3 Davenport IA MNPLIAXCJMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 634   2014-09-22   
563-549 4 Davenport IA DVNPIAEAXMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 634   2018-07-16   
563-549 5 Davenport IA DVNPIADTGMD  221F ONVOY, LLC - IA 634   2012-12-13   
563-549 6 Davenport IA DVNPIAEAEMD  8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 634   2010-02-08   
563-549 7 Davenport IA DVNPIADTGMD  221F ONVOY, LLC - IA 634   2012-12-13   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 >>

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.