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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-288 9 Amund IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620   2021-07-09   
641-289 A Lamoni IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632      
641-289 0 Lamoni IA   6266 UNITED STATES CELLULAR - IA 632   2009-08-02   
641-289 1 Lamoni IA   751F MCC TELEPHONY OF IOWA, LLC - IA 632   2010-04-15   
641-289 2 Lamoni IA   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-15   
641-289 3 Lamoni IA   6266 UNITED STATES CELLULAR - IA 632   2021-01-17   
641-289 4 Lamoni IA   9877 LEVEL 3 COMMUNICATIONS, LLC - IA 632   2022-05-12   
641-289 5 Lamoni IA   6529 T-MOBILE USA, INC. 632   2024-08-15   
641-289 8 Lamoni IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 632   2020-10-16   
641-289 9 Lamoni IA   5562 METROPCS, INC. 632   2018-07-12   
641-290 A Milo IA DESMIAITX9X  490J DISH WIRELESS, LLC 632      
641-290 0 Milo IA   145J TERRA NOVA TELECOM INC. 632   2025-06-06   
641-290 2 Milo IA   624H ONVOY SPECTRUM, LLC 632   2024-03-09   
641-290 9 Milo IA   490J DISH WIRELESS, LLC 632   2022-10-01   
641-291 A Plano IA KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632   2024-07-29   
641-291 0 Plano IA   624H ONVOY SPECTRUM, LLC 632   2024-07-29   
641-292 A Liberty Center IA KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632   2024-07-07   
641-292 0 Liberty Center IA   624H ONVOY SPECTRUM, LLC 632   2024-07-07   
641-292 2 Liberty Center IA   145J TERRA NOVA TELECOM INC. 632   2025-05-27   
641-293 A South Emmons IA LKMLIAXODS1  1337 WINNEBAGO COOP. TEL. ASSN. - IA 632      
641-294 A Russell IA KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632   2024-07-29   
641-294 0 Russell IA   624H ONVOY SPECTRUM, LLC 632   2024-07-29   
641-295 A Oskaloosa IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632      
641-295 0 Oskaloosa IA   6266 UNITED STATES CELLULAR - IA 632      
641-295 1 Oskaloosa IA   6266 UNITED STATES CELLULAR - IA 632      
641-295 2 Oskaloosa IA   6266 UNITED STATES CELLULAR - IA 632      
641-295 3 Oskaloosa IA   6266 UNITED STATES CELLULAR - IA 632      
641-295 4 Oskaloosa IA   6266 UNITED STATES CELLULAR - IA 632   2004-02-10   
641-295 5 Oskaloosa IA   6266 UNITED STATES CELLULAR - IA 632   2004-02-10   
641-295 6 Oskaloosa IA   6266 UNITED STATES CELLULAR - IA 632   2004-02-10   
641-295 7 Oskaloosa IA   6529 T-MOBILE USA, INC. 632   2022-02-07   
641-295 8 Oskaloosa IA   5562 METROPCS, INC. 632   2005-07-31   
641-295 9 Oskaloosa IA   5562 METROPCS, INC. 632   2003-02-11   
641-296 A New Virginia IA KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632   2024-07-29   
641-296 0 New Virginia IA   624H ONVOY SPECTRUM, LLC 632   2024-07-29   
641-297 A St Marys IA STMYIAXODS1  1209 FMTC-I35, INC. D/B/A OMNITEL COMMUNICATIONS 632      
641-298 A Amund IA KNYNMNXADS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
641-298 0 Amund IA   1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
641-298 1 Amund IA   1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
641-298 2 Amund IA   1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
641-298 3 Amund IA   1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
641-298 4 Amund IA   221F ONVOY, LLC - IA 620   2020-03-27   
641-298 5 Amund IA   221F ONVOY, LLC - IA 620   2020-03-27   
641-298 6 Amund IA   221F ONVOY, LLC - IA 620   2020-01-05   
641-298 7 Amund IA   508J CENTURYLINK COMMUNICATIONS, LLC 620   2017-05-16   
641-298 8 Amund IA   221F ONVOY, LLC - IA 620   2020-05-26   
641-298 9 Amund IA   1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 620      
641-299 A Shannon City IA KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632   2024-07-29   
641-299 0 Shannon City IA   624H ONVOY SPECTRUM, LLC 632   2024-07-29   
641-299 9 Shannon City IA   145J TERRA NOVA TELECOM INC. 632   2025-05-24   
641-300 A Osage IA DESMIADTXUX  965H FRACTEL, LLC 632      
641-300 0 Osage IA   965H FRACTEL, LLC 632   2020-02-17   
641-300 1 Osage IA   073H TELNYX LLC 632   2020-05-29   
641-300 2 Osage IA   9877 LEVEL 3 COMMUNICATIONS, LLC - IA 632   2020-05-23   
641-300 3 Osage IA   965H FRACTEL, LLC 632   2020-02-17   
641-300 4 Osage IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 632   2024-10-26   
641-300 5 Osage IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 632   2025-11-18   
641-300 6 Osage IA   515J IP HORIZON LLC 632   2025-09-26   
641-300 7 Osage IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2020-09-28   
641-300 8 Osage IA   221F ONVOY, LLC - IA 632   2021-04-16   
641-300 9 Osage IA   221F ONVOY, LLC - IA 632   2021-04-16   
641-301 A Martensdale IA KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632   2024-07-29   
641-301 0 Martensdale IA   624H ONVOY SPECTRUM, LLC 632   2024-07-29   
641-302 A Rhodes IA DESMIAITX9X  490J DISH WIRELESS, LLC 632      
641-302 0 Rhodes IA   490J DISH WIRELESS, LLC 632   2023-07-15   
641-303 A State Center IA DESMIAITX1X  751F MCC TELEPHONY OF IOWA, LLC - IA 632      
641-303 1 State Center IA   751F MCC TELEPHONY OF IOWA, LLC - IA 632   2023-12-23   
641-303 3 State Center IA   145J TERRA NOVA TELECOM INC. 632   2025-05-27   
641-304 A Lenox IA DESMIADTXZX  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 632   2024-10-11   
641-304 0 Lenox IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 632   2024-10-11   
641-304 3 Lenox IA   5562 METROPCS, INC. 632   2025-04-27   
641-305 A Melrose IA   751F MCC TELEPHONY OF IOWA, LLC - IA 632   2025-06-14   
641-305 1 Melrose IA   751F MCC TELEPHONY OF IOWA, LLC - IA 632   2025-06-14   
641-307 A Guthrie Center IA GTCTIAXOPS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-307 0 Guthrie Center IA   444G AUREON COMMUNICATIONS, LLC 632   2018-02-09   
641-307 3 Guthrie Center IA   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-15   
641-307 6 Guthrie Center IA   221F ONVOY, LLC - IA 632   2020-11-19   
641-307 7 Guthrie Center IA   624H ONVOY SPECTRUM, LLC 632   2024-03-09   
641-307 9 Guthrie Center IA   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632   2016-10-15   
641-308 A New Haven IA RUDDIA01DS2  1177 FARMERS TEL. CO. 632      
641-309 A New Haven IA RUDDIA01DS2  1177 FARMERS TEL. CO. 632      
641-310 A Marshalltown IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2024-04-29   
641-310 0 Marshalltown IA   221F ONVOY, LLC - IA 632   2024-04-29   
641-310 1 Marshalltown IA   624H ONVOY SPECTRUM, LLC 632   2024-12-15   
641-310 3 Marshalltown IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 632   2025-08-18   
641-310 6 Marshalltown IA   695G IMON COMMUNICATIONS, LLC - IA 632   2024-10-25   
641-310 8 Marshalltown IA   515J IP HORIZON LLC 632   2025-09-26   
641-310 9 Marshalltown IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2024-12-15   
641-315 A Marble Rock IA MRRKIA01RS0  3620 OMNITEL COMMUNICATIONS, INC. - IA 632      
641-315 1 Marble Rock IA   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-15   
641-315 2 Marble Rock IA   3620 OMNITEL COMMUNICATIONS, INC. - IA 632      
641-315 3 Marble Rock IA   3620 OMNITEL COMMUNICATIONS, INC. - IA 632      
641-315 4 Marble Rock IA   145J TERRA NOVA TELECOM INC. 632   2025-05-27   
641-315 5 Marble Rock IA   221F ONVOY, LLC - IA 632   2021-08-30   
641-315 8 Marble Rock IA   3620 OMNITEL COMMUNICATIONS, INC. - IA 632      
641-316 A Iowa Falls IA DESMIADTFMD  221F ONVOY, LLC - IA 632      
641-316 0 Iowa Falls IA   985E BANDWIDTH.COM CLEC, LLC - IA 632   2015-05-25   
641-316 1 Iowa Falls IA   751F MCC TELEPHONY OF IOWA, LLC - IA 632   2010-04-15   
641-316 2 Iowa Falls IA   9877 LEVEL 3 COMMUNICATIONS, LLC - IA 632   2010-04-01   
641-316 3 Iowa Falls IA   985E BANDWIDTH.COM CLEC, LLC - IA 632   2011-10-28   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 >>

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.