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: CO

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-369 A Telluride CO TLRDCOMADS0  9636 QWEST CORPORATION 656      
970-369 0 Telluride CO TLRDCOMADS0  9636 QWEST CORPORATION 656      
970-369 1 Telluride CO TLRDCOMADS0  9636 QWEST CORPORATION 656      
970-369 2 Telluride CO DURNCOBSDS0  330B FASTTRACK COMMUNICATIONS, INC. - CO 656      
970-369 3 Telluride CO DNVRCO26XSX  145J TERRA NOVA TELECOM INC. 656      
970-369 4 Telluride CO TLRDCOMADS0  9636 QWEST CORPORATION 656      
970-369 5 Telluride CO TLRDCOMADS0  9636 QWEST CORPORATION 656      
970-369 6 Telluride CO TLRDCOMADS0  9636 QWEST CORPORATION 656      
970-369 7 Telluride CO TLRDCOMADS0  9636 QWEST CORPORATION 656      
970-369 8 Telluride CO TLRDCOMADS0  9636 QWEST CORPORATION 656      
970-369 9 Telluride CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
970-370 A Fort Morgan CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
970-370 0 Fort Morgan CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
970-370 1 Fort Morgan CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
970-370 2 Fort Morgan CO   792K CHARTER IP ENABLED SERVICES, LLC 656      
970-370 3 Fort Morgan CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
970-370 4 Fort Morgan CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
970-370 6 Fort Morgan CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-370 8 Fort Morgan CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
970-370 9 Fort Morgan CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
970-371 A Greeley CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-372 A Fort Collins CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-372 0 Fort Collins CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-372 1 Fort Collins CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-372 2 Fort Collins CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-372 3 Fort Collins CO DNVRCOMDDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
970-372 4 Fort Collins CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-372 5 Fort Collins CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-372 6 Fort Collins CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-372 7 Fort Collins CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-372 8 Fort Collins CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-372 9 Fort Collins CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-373 A Greeley CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-373 0 Greeley CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-373 1 Greeley CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-373 2 Greeley CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-373 3 Greeley CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-373 4 Greeley CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-373 5 Greeley CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-373 6 Greeley CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
970-373 7 Greeley CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
970-373 8 Greeley CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
970-373 9 Greeley CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
970-374 A Rangely CO DNSRCOXCRS1  2185 CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK 656      
970-375 A Durango CO DURNCOMADS0  9636 QWEST CORPORATION 656      
970-376 A Vail CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-377 A Fort Collins CO FTCLCOHMDS0  9636 QWEST CORPORATION 656      
970-378 A Greeley CO GRELCOMADS0  9636 QWEST CORPORATION 656      
970-379 A Glenwood Springs CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
970-380 A Fort Morgan CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
970-381 A Greeley CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
970-382 A Durango CO DURNCOMADS0  9636 QWEST CORPORATION 656      
970-382 0 Durango CO DURNCOMADS0  9636 QWEST CORPORATION 656      
970-382 1 Durango CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
970-382 2 Durango CO DURNCOMADS0  9636 QWEST CORPORATION 656      
970-382 3 Durango CO DURNCOMADS0  9636 QWEST CORPORATION 656      
970-382 4 Durango CO DURNCOMADS0  9636 QWEST CORPORATION 656      
970-382 5 Durango CO DURNCOMADS0  9636 QWEST CORPORATION 656      
970-382 6 Durango CO DURNCOMADS0  9636 QWEST CORPORATION 656      
970-382 7 Durango CO DURNCOMADS0  9636 QWEST CORPORATION 656      
970-382 8 Durango CO DURNCOMADS0  9636 QWEST CORPORATION 656      
970-382 9 Durango CO DURNCOMADS0  9636 QWEST CORPORATION 656      
970-383 A Anton CO JOESCOXCDS0  2199 PLAINS COOP. TEL. ASSN., INC. 656      
970-384 A Glenwood Springs CO GLSPCOMADS0  9636 QWEST CORPORATION 656      
970-385 A Durango CO DURNCOMADS0  9636 QWEST CORPORATION 656      
970-386 A Woodrow CO WDRWCOXCRS0  2186 EASTERN SLOPE RURAL TEL. ASSN., INC. 656      
970-387 A Silverton CO SLTNCOMARS1  9636 QWEST CORPORATION 656      
970-387 0 Silverton CO SLTNCOMARS1  9636 QWEST CORPORATION 656      
970-387 1 Silverton CO SLTNCOMARS1  9636 QWEST CORPORATION 656      
970-387 2 Silverton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-387 3 Silverton CO DURNCOBSDS0  330B FASTTRACK COMMUNICATIONS, INC. - CO 656      
970-387 4 Silverton CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
970-387 5 Silverton CO SLTNCOMARS1  9636 QWEST CORPORATION 656      
970-387 6 Silverton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-387 7 Silverton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-387 8 Silverton CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
970-387 9 Silverton CO SLTNCOMARS1  9636 QWEST CORPORATION 656      
970-388 A Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-388 0 Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-388 1 Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-388 2 Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-388 3 Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-388 4 Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-388 5 Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-388 6 Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-388 7 Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-388 8 Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-388 9 Windsor CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-389 A Dillon CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-389 0 Dillon CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-389 1 Dillon CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-389 2 Dillon CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-389 3 Dillon CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-389 4 Dillon CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-389 5 Dillon CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-389 6 Dillon CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-389 7 Dillon CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-389 8 Dillon CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-389 9 Dillon CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-390 A Vail CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.