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.

OCN: 508J CENTURYLINK COMMUNICATIONS, LLC

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
970-512 6 Dove Creek CO HLRNCOFP1MD  656   2014-11-05   
970-514 2 Akron CO HLRNCOFP1MD  656   2014-11-05   
970-517 7 Hot Sulphur Springs CO HLRNCOFP1MD  656   2015-01-07   
970-519 7 Telluride CO HLRNCOFP1MD  656   2014-11-05   
970-528 7 Berthoud CO HLRNCOFP1MD  656   2014-05-23   
970-536 7 New Castle CO HLRNCOFP1MD  656   2014-11-06   
970-548 6 Rangely CO HLRNCOFP1MD  656   2014-11-05   
970-550 6 Maybell CO HLRNCOFP1MD  656   2014-11-06   
970-551 7 Marvel CO HLRNCOFP1MD  656   2014-11-06   
970-553 7 Ignacio CO HLRNCOFP1MD  656   2014-11-06   
970-557 6 Granby CO HLRNCOFP1MD  656   2014-05-23   
970-570 4 Cortez CO HLRNCOFP1MD  656   2015-05-26   
970-572 6 Rangely CO HLRNCOFP1MD  656   2014-11-05   
970-579 2 De Beque CO HLRNCOFP1MD  656   2014-05-23   
970-592 6 Wray CO HLRNCOFP1MD  656   2014-11-05   
970-594 6 Walden CO HLRNCOFP1MD  656   2014-11-05   
970-598 A Platteville CO HLRNCOFP1MD  656      
970-598 7 Platteville CO HLRNCOFP1MD  656   2015-01-17   
970-601 5 Mead CO HLRNCOFP1MD  656   2014-05-23   
970-615 8 Montrose CO HLRNCOFP1MD  656   2015-06-15   
970-626 7 Ridgway CO HLRNCOFP1MD  656   2014-11-05   
970-629 7 Craig CO HLRNCOFP1MD  656   2014-05-23   
970-633 6 Ouray CO HLRNCOFP1MD  656   2014-11-21   
970-642 8 Gunnison CO HLRNCOFP1MD  656   2012-02-20   
970-661 7 Bayfield CO HLRNCOFP1MD  656   2014-05-22   
970-665 5 Rifle CO HLRNCOFP1MD  656   2014-11-05   
970-666 7 Fort Collins CO HLRNCOFP1MD  656   2019-11-29   
970-693 7 Meeker CO HLRNCOFP1MD  656   2014-11-18   
970-695 6 Mesa CO HLRNCOFP1MD  656   2014-05-23   
970-699 7 Loveland CO HLRNCOFP1MD  656   2015-05-26   
970-702 7 Greeley CO HLRNCOFP1MD  656   2015-05-26   
970-707 7 Gunnison CO HLRNCOFP1MD  656   2014-05-23   
970-710 8 Aspen CO HLRNCOFP1MD  656   2015-05-23   
970-713 7 Crested Butte CO HLRNCOFP1MD  656   2014-05-23   
970-715 7 Mancos CO HLRNCOFP1MD  656   2014-11-18   
970-716 5 Eaton CO HLRNCOFP1MD  656   2014-05-23   
970-717 6 Hayden CO HLRNCOFP1MD  656   2014-05-23   
970-718 7 Basalt CO HLRNCOFP1MD  656   2014-05-22   
970-737 5 Gilcrest CO HLRNCOFP1MD  656   2014-05-23   
970-761 7 Steamboat Springs CO HLRNCOFP1MD  656   2014-11-05   
970-762 7 Sterling CO HLRNCOFP1MD  656   2014-11-05   
970-771 1 Breckenridge CO HLRNCOFP1MD  656   2014-06-27   
970-788 5 Allison CO HLRNCOFP1MD  656   2014-11-05   
970-789 A South Sidney CO GDISNENWUMD  646      
970-789 7 South Sidney CO GDISNENWUMD  646   2015-03-16   
970-795 1 Windsor CO HLRNCOFP1MD  656   2017-08-12   
970-798 5 Grand Lake CO HLRNCOFP1MD  656   2014-05-23   
970-808 5 Delta CO HLRNCOFP1MD  656   2014-05-23   
970-822 4 Grand Junction CO HLRNCOFP1MD  656   2015-05-23   
970-825 7 Fort Collins CO HLRNCOFP1MD  656   2015-05-26   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 >>

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.