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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-990 9 Grinnell IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632   2004-02-10   
641-991 A Osceola IA DESMIA72GMD  6529 T-MOBILE USA, INC. 632   2025-05-04   
641-991 1 Osceola IA   145J TERRA NOVA TELECOM INC. 632   2025-05-31   
641-991 8 Osceola IA DESMIA72GMD  6529 T-MOBILE USA, INC. 632   2025-05-04   
641-991 9 Osceola IA DESMIA72GMD  6529 T-MOBILE USA, INC. 632   2025-05-04   
641-992 A Little Cedar IA RUDDIA01DS2  1177 FARMERS TEL. CO. 632      
641-995 A Swaledale IA SWDLIAXORS9  1127 FRONTIER COMMUNICATIONS OF IOWA, INC. 632      
641-997 A Ottumwa IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632   2025-01-05   
641-997 0 Ottumwa IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632   2025-01-05   
641-997 1 Ottumwa IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632   2025-01-05   
641-997 2 Ottumwa IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632   2025-01-05   
641-997 3 Ottumwa IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632   2025-01-05   
641-997 4 Ottumwa IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632   2025-01-05   
641-997 5 Ottumwa IA DESMIADTX1X  624H ONVOY SPECTRUM, LLC 632   2025-01-06   
641-997 6 Ottumwa IA DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2026-04-17   
641-997 7 Ottumwa IA DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2026-04-17   
641-997 8 Ottumwa IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 632   2026-10-22   
641-998 A Thornton IA THTNIAXORS9  1127 FRONTIER COMMUNICATIONS OF IOWA, INC. 632      
641-999 A Nashua IA DESMIADTFMD  221F ONVOY, LLC - IA 632      
641-999 0 Nashua IA BOONIA01DS1  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-15   
641-999 1 Nashua IA DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2018-06-08   
641-999 2 Nashua IA DESMIADTXMX  073H TELNYX LLC 632   2020-05-29   
641-999 3 Nashua IA MSCYIA75HMD  444G AUREON COMMUNICATIONS, LLC 632   2020-08-28   
641-999 4 Nashua IA   114J EXIANT COMMUNICATIONS LLC 632   2026-05-22   
641-999 5 Nashua IA   145J TERRA NOVA TELECOM INC. 632   2024-02-13   
641-999 6 Nashua IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2019-09-20   
641-999 7 Nashua IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2021-03-13   
641-999 8 Nashua IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2021-03-13   
641-999 9 Nashua IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2018-04-19   
712-200 A Alta IA ALTAIA01RS0  3097 ALTA MUNICIPAL UTILITIES - IA 630      
712-201 A Underwood IA OMAHNENWXPX  221F ONVOY, LLC - IA 644      
712-201 0 Underwood IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2016-02-26   
712-201 1 Underwood IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2016-01-22   
712-201 2 Underwood IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2016-02-26   
712-201 3 Underwood IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2016-04-14   
712-201 4 Underwood IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2016-04-14   
712-201 5 Underwood IA OMAKNEYW0MD  073H TELNYX LLC 644   2018-07-02   
712-201 6 Underwood IA OMAKNEYWDS1  423H AIRUS, INC - IA 644   2019-05-20   
712-201 7 Underwood IA OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644   2018-04-07   
712-201 8 Underwood IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2019-09-20   
712-201 9 Underwood IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2018-02-24   
712-202 A Sioux City IA SXCYIADTXDX  829J PAETEC ITEL, LLC 630      
712-202 0 Sioux City IA SXCYIADTXDX  829J PAETEC ITEL, LLC 630      
712-202 1 Sioux City IA SXCYIADTXDX  829J PAETEC ITEL, LLC 630      
712-202 2 Sioux City IA SXCYIADTXDX  829J PAETEC ITEL, LLC 630      
712-202 3 Sioux City IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630   2007-09-02   
712-202 4 Sioux City IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630   2007-11-24   
712-202 5 Sioux City IA SXCYIADTXDX  829J PAETEC ITEL, LLC 630      
712-202 6 Sioux City IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630   2007-11-24   
712-202 7 Sioux City IA SXCYIADTXDX  829J PAETEC ITEL, LLC 630      
712-202 8 Sioux City IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630   2008-02-11   
712-202 9 Sioux City IA SXCYIADTXDX  829J PAETEC ITEL, LLC 630      
712-203 A Sioux City IA SXCYIA78X9X  6529 T-MOBILE USA, INC. 630      
712-203 0 Sioux City IA SXCYIA78X9X  6529 T-MOBILE USA, INC. 630      
712-203 1 Sioux City IA SXCYIA78X9X  6529 T-MOBILE USA, INC. 630      
712-203 2 Sioux City IA SXCYIA78X7X  444G AUREON COMMUNICATIONS, LLC 630   2014-07-25   
712-203 3 Sioux City IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630   2016-04-15   
712-203 4 Sioux City IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630   2018-07-19   
712-203 5 Sioux City IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630   2018-10-16   
712-203 6 Sioux City IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630   2016-05-31   
712-203 7 Sioux City IA SXCYIADTCMD  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 630   2021-03-25   
712-203 8 Sioux City IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630   2007-01-16   
712-203 9 Sioux City IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630   2007-01-16   
712-204 A Sioux City IA SXCYIA78X9X  6529 T-MOBILE USA, INC. 630      
712-204 0 Sioux City IA SXCYIA78X9X  6529 T-MOBILE USA, INC. 630      
712-204 1 Sioux City IA SXCYIA78X9X  5562 METROPCS, INC. 630      
712-204 2 Sioux City IA SXCYIA78X9X  5562 METROPCS, INC. 630      
712-204 3 Sioux City IA SXCYIA78X9X  5562 METROPCS, INC. 630      
712-204 4 Sioux City IA SXCYIA78X9X  5562 METROPCS, INC. 630      
712-204 5 Sioux City IA SXCYIA78X9X  6529 T-MOBILE USA, INC. 630      
712-204 6 Sioux City IA SXCYIA78X9X  5562 METROPCS, INC. 630      
712-204 7 Sioux City IA SXCYIA78X9X  6529 T-MOBILE USA, INC. 630      
712-204 8 Sioux City IA SXCYIA78X9X  6529 T-MOBILE USA, INC. 630      
712-204 9 Sioux City IA SXCYIA78X9X  6529 T-MOBILE USA, INC. 630      
712-205 A Audubon IA ADBNIAXOPS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644      
712-205 0 Audubon IA DESMIAITGT5  444G AUREON COMMUNICATIONS, LLC 644   2020-08-28   
712-205 1 Audubon IA OMAHNENWXMX  6701 AERIAL COMMUNICATIONS, INC. 644   2024-09-05   
712-205 4 Audubon IA OMAHNENWXMX  5562 METROPCS, INC. 644   2025-04-27   
712-205 7 Audubon IA BLLVNEBL5MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 644   2026-05-09   
712-205 8 Audubon IA OMAHNENWGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2024-08-17   
712-205 9 Audubon IA ADBNIAXOPS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644   2016-09-08   
712-206 A Armstrong IA ARMSIAXPPS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 630      
712-206 0 Armstrong IA RCCYIAXCXMD  624H ONVOY SPECTRUM, LLC 630   2024-03-17   
712-206 1 Armstrong IA SXCYIA78X9X  6529 T-MOBILE USA, INC. 630   2024-08-15   
712-206 2 Armstrong IA RCCYIAXCHMD  221F ONVOY, LLC - IA 630   2021-09-04   
712-206 3 Armstrong IA RCCYIAXCHMD  221F ONVOY, LLC - IA 630   2021-10-31   
712-206 4 Armstrong IA RCCYIAXCHMD  221F ONVOY, LLC - IA 630   2022-01-02   
712-206 7 Armstrong IA RCCYIAXCHMD  221F ONVOY, LLC - IA 630   2022-03-19   
712-206 8 Armstrong IA RCCYIAXCHMD  221F ONVOY, LLC - IA 630   2022-03-19   
712-206 9 Armstrong IA ARMSIAXPPS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 630   2018-03-18   
712-207 A Shelby IA AVOCIAXO2MD  774B WALNUT TELEPHONE COMPANY, INC. - IA 644      
712-207 2 Shelby IA AVOCIAXO2MD  774B WALNUT TELEPHONE COMPANY, INC. - IA 644   2004-07-16   
712-207 3 Shelby IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2021-10-31   
712-207 4 Shelby IA OMAHNENWXPX  221F ONVOY, LLC - IA 644   2022-01-28   
712-207 5 Shelby IA BLLVNEBL5MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 644   2022-07-03   
712-208 A Mapleton IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630      
712-208 0 Mapleton IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630      
712-208 1 Mapleton IA SPNCIAAC2MD  6266 UNITED STATES CELLULAR - IA 630   2019-06-23   
712-208 2 Mapleton IA SXCYIADT9MD  221F ONVOY, LLC - IA 630   2018-10-19   
712-208 3 Mapleton IA SXCYIADTUMD  073H TELNYX LLC 630   2020-05-28   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 >>

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.