970
Area code 970
Colorado, United States
National (970) 555-0123, E.164 +19705550123
How the 789 central office codes (exchanges) of area code 970 were allocated, from the North American Numbering Plan's records: to which carrier, as which line type. A 970 number is mobile, fixed line or VoIP according to its exchange, the three digits after the area code; the allocation is the original one (below).
At a glance
- Country code
- +1
- State
- CO
- Exchanges on record
- 789
- Carriers on record
- 49
- Mobile 249 (32%)
- Fixed line 350 (44%)
- VoIP 176 (22%)
- No line type on record 14 (2%)
- 789 exchanges on record
Most exchanges: Lumen 265, Onvoy 88, Verizon 87.
Check a number
Valid fixed line or mobile number in the United States.
+1
country code
970
area code
5550123
subscriber number
| Country | United States numbering plan |
|---|---|
| Line type | Fixed line or mobile |
| Carrier the block was allocated to | No carrier on record for this prefix |
| E.164 | +19705550123 |
| International | +1 970-555-0123 |
| National | (970) 555-0123 |
| RFC 3966 | tel:+1-970-555-0123 |
Source: North American Numbering Plan Administrator (NANPA); Canadian Numbering Administrator (CNAC); National numbering plan: United States (ITU)
The example is 970-555-0123: 555-0100 to 555-0199 are set aside for fictional use in every area code.
The exchange map
One cell per exchange: blocks 970 2xx to 970 9xx; in each block the row is the tens digit, the column the units digit.
- Mobile 249
- Fixed line 350
- VoIP 176
- No line type on record 14
- Not on record 11
Formats and patterns
| E.164 | +19705550123 |
|---|---|
| International | +1 970-555-0123 |
| National | (970) 555-0123 |
| RFC 3966 (tel: URI) | tel:+1-970-555-0123 |
Any 970 number, in E.164
^\+1970[2-9]\d{6}$+1, the area code, a central office code that does not start with 0 or 1, then four digits.
Mobile exchanges (249 on record)
^\+1970(?:2(?:0[1289]|1[03-9]|2[027]|[39][014]|5[08]|6[019]|7[045]|8[16])|3(?:0[1-357-9]|1[06-9]|2[126]|3[13]|55|61|7[0169]|8[0189]|9[01346-8])|4(?:0[124-69]|1[23578]|2[0168]|3[03]|4[135]|52|6[67]|7[013]|8[156])|5(?:0[1259]|1[589]|20|3[1479]|45|5[13469]|6[067]|7[013-6]|8[0-249]|9[05-79])|6(?:00|1[578]|2[0139]|3[0147]|4[036]|5[45]|8[1259]|9[0-2489])|7(?:0[128]|1[024]|2[09]|3[49]|4[259]|5[0135-9]|6[7-9]|7[03569]|8[01367]|9[239])|8(?:0[2-4]|1[4-79]|2[259]|36|4[46]|73|8[09]|9[269])|9(?:0[1-7]|1[0457]|3[039]|4[0-268]|57|6[016]|7[3578]|8[025-9]))\d{4}$Fixed line exchanges (350 on record)
^\+1970(?:2(?:0[3-7]|12|2[13-689]|3[5-79]|4\d|5[1-79]|6[2-8]|7[1-36-9]|8[02-58]|9[25-8])|3(?:0[046]|1[3-5]|2[3-57-9]|3[024-79]|4[0-24-9]|5[0-46-9]|6[2-9]|7[2-578]|8[2-7]|9[259])|4(?:0[378]|1[69]|2[24579]|3[457-9]|4[489]|5[3-9]|6[1-48]|7[24-79]|8[2-478]|9[0-8])|5(?:0[036]|1[36]|2[1-4679]|3[0235]|4[12479]|5[27]|6[2-589]|7[78]|8[35-8]|93)|6(?:1[239]|2[24-8]|3[589]|4[125]|5[2368]|[67][02-57-9]|8[36-8]|97)|7(?:0[4-7]|2[2-68]|3[015-7]|4[0348]|5[24]|6[02-6]|7[478]|85|9[07])|8(?:05|1[028]|2[01346-8]|3[3-58]|4[02578]|5[134689]|6[2457]|7[0-24-689]|8[1-7]|9[578])|9(?:2\d|31|4[3-579]|6[2378]|8[14]))\d{4}$VoIP exchanges (176 on record)
^\+1970(?:2(?:00|3[238]|8[79]|9[39])|3(?:12|[26]0|38|43)|4(?:00|1[04]|23|3[126]|4[0267]|5[01]|6[059]|78|8[09]|99)|5(?:0[478]|1[0247]|2[58]|3[68]|4[0368]|5[08]|61|7[29]|9[1248])|6(?:0[1-9]|1[046]|3[236]|4[47-9]|5[0179]|[67][16]|8[04]|9[356])|7(?:0[39]|1[35-8]|2[17]|3[238]|4[167]|61|7[12]|8[2489]|9[14-68])|8(?:0[06-9]|13|3[0-279]|4[139]|5[0257]|6[013689]|77|88|9[0134])|9(?:0[089]|1[2369]|3[24-8]|55|6[459]|7[0-29]|9[02-9]))\d{4}$The exchange patterns follow the original allocations; a number ported since keeps its digits but not necessarily its carrier or its line type.
Carriers and their exchanges
Every carrier holding exchanges in 970, with the exchanges allocated to it (the three digits after the area code).
| Carrier | Exchanges | Mobile | Fixed line | VoIP | Exchanges held |
|---|---|---|---|---|---|
| Lumen | 265 | 0 | 261 | 4 | 203–207, 212, 221, 223–226, 229, 237, 239–249, 251–257, 259, 262–264, 266–268, 271–272, 276, 278–279, 282–285, 288, 292, 295, 297–298, 300, 304, 306, 313, 315, 323, 325, 327–330, 332, 335–336, 339, 344–353, 356, 363–364, 366–369, 372–375, 377–378, 382, 384–385, 387, 392, 395, 407, 416, 419, 422, 425, 427, 429, 434–435, 453–459, 461, 463–464, 468, 472, 474, 476–477, 479, 482, 484, 487–488, 490–498, 506, 513, 521–524, 526, 529, 532–533, 535, 542, 544, 547, 557, 563–565, 568–569, 577, 586–588, 593, 598, 613, 619, 622, 624–627, 635, 638–639, 641–642, 645, 652–653, 658, 660, 662–663, 665, 667–669, 672–675, 677, 679, 683, 686, 688, 704, 722–726, 728, 730–731, 736–737, 740, 744, 748, 752, 760, 762–765, 778, 785, 789, 805, 810, 812, 820–821, 823–824, 826–827, 834, 840, 842, 845, 847–848, 853, 858, 866–867, 870–871, 874–876, 878–879, 881–885, 887, 919–920, 922–928, 943–945, 947, 949, 962–963, 968, 984 |
| Onvoy | 88 | 0 | 0 | 88 | 233, 238, 293, 299, 320, 343, 360, 400, 414, 423, 431–432, 436, 440, 442, 446–447, 450–451, 465, 469, 478, 489, 499, 507–508, 510, 512, 514, 517, 536, 538, 540, 548, 550, 558, 572, 579, 592, 594, 601, 608–610, 614, 632, 647, 649–651, 666, 671, 676, 680, 684, 695–696, 703, 709, 716, 721, 741, 747, 761, 772, 782, 784, 788, 791, 794, 796, 798, 800, 808, 830, 849, 888, 893–894, 900, 916, 936, 938, 964–965, 970, 972, 999 |
| Verizon | 87 | 77 | 10 | 0 | 210, 216–219, 222, 250, 290, 296, 301–302, 305, 309, 316, 318–319, 370, 379–381, 397, 401, 406, 409, 415, 420, 441, 445, 471, 485, 502, 509, 519, 531, 552, 560, 570–571, 573, 580, 589–590, 595–597, 615, 617–618, 620, 623, 629, 640, 682, 685, 687, 698–699, 705–706, 708, 712, 773, 776, 783, 786–787, 797, 803, 817–819, 833, 836, 838, 846, 851, 880, 892, 901, 903, 939–940, 946, 966, 975, 982, 987 |
| T-Mobile | 77 | 77 | 0 | 0 | 201, 213, 230, 234, 258, 281, 291, 294, 307, 310, 331, 333, 355, 361, 391, 393, 402, 404–405, 412, 417–418, 426, 430, 433, 470, 473, 486, 501, 505, 515, 518, 534, 539, 556, 559, 566–567, 575–576, 581–582, 584, 631, 637, 689–692, 694, 701–702, 710, 779, 792–793, 804, 814–816, 822, 825, 844, 889, 896, 904, 914, 917, 930, 973, 977–978, 980, 985–986, 988–989 |
| AT&T | 60 | 54 | 6 | 0 | 208–209, 214–215, 227, 231, 260–261, 270, 274–275, 286, 308, 317, 324, 340, 371, 376, 388–390, 394, 396, 398, 408, 413, 421, 439, 443, 452, 481, 541, 545, 551, 553, 599, 634, 643, 646, 654, 714, 729, 739, 742, 749, 753, 759, 769, 775, 781, 799, 829, 898–899, 910, 915, 933, 948, 957, 960 |
| Ton80 Communications | 22 | 0 | 0 | 22 | 525, 543, 727, 733, 738, 809, 837, 868, 877, 932, 935, 937, 955, 969, 979, 992–998 |
| Union Telephone | 17 | 17 | 0 | 0 | 269, 326, 537, 574, 655, 734, 745, 750–751, 755–758, 767, 770, 873, 942 |
| Bandwidth.com | 16 | 0 | 0 | 16 | 200, 480, 546, 616, 633, 648, 717, 795, 813, 832, 841, 852, 857, 908, 913, 934 |
| COMMIO LLC | 14 | 0 | 0 | 14 | 338, 603–607, 806, 843, 850, 860–861, 863, 869, 891 |
| Peerless Network | 14 | 0 | 0 | 14 | 287, 289, 410, 528, 591, 636, 644, 659, 661, 693, 713, 715, 718, 890 |
| Comcast | 10 | 0 | 0 | 10 | 232, 460, 504, 561, 602, 657, 746, 771, 855, 909 |
| San Isabel Telecom | 8 | 0 | 8 | 0 | 273, 277, 280, 337, 754, 766, 777, 790 |
| Cellular One | 7 | 7 | 0 | 0 | 466–467, 520, 554, 630, 768, 961 |
| Plains Cooperative Telephone Association | 7 | 0 | 7 | 0 | 354, 357–359, 362, 383, 664 |
| Nucla-Naturita Telephone Company | 6 | 1 | 5 | 0 | 428, 859, 862, 864–865, 931 |
| Spectrum | 6 | 0 | 6 | 0 | 314, 424, 438, 549, 628, 707 |
| TDS Telecom | 6 | 0 | 6 | 0 | 527, 835, 856, 872, 921, 929 |
| FastTrack Communications | 5 | 0 | 5 | 0 | 341, 399, 444, 585, 828 |
| UBET Wireless | 5 | 5 | 0 | 0 | 220, 321–322, 720, 941 |
| Allstream | 4 | 0 | 4 | 0 | 235, 342, 449, 670 |
| Emergency Networks | 4 | 4 | 0 | 0 | 303, 780, 802, 907 |
| Paetec Itel | 4 | 0 | 4 | 0 | 475, 530, 578, 612 |
| Wiggins Telephone Association | 4 | 0 | 4 | 0 | 437, 483, 656, 895 |
| Zippy Tech | 4 | 0 | 4 | 0 | 236, 403, 462, 981 |
| American Messaging | 3 | 3 | 0 | 0 | 202, 621, 681 |
| Haxtun Telephone Company | 3 | 0 | 3 | 0 | 265, 774, 886 |
| TELNYX | 3 | 0 | 0 | 3 | 312, 831, 839 |
| Allo Communications | 2 | 0 | 2 | 0 | 503, 743 |
| Dish Wireless | 2 | 2 | 0 | 0 | 902, 905 |
| Forthought.net | 2 | 0 | 2 | 0 | 678, 697 |
| TDS Baja Broadband | 2 | 0 | 0 | 2 | 912, 971 |
| Dubois Telephone Exchange | 1 | 0 | 1 | 0 | 583 |
| Eastern Slope Rural Telephone Association | 1 | 0 | 1 | 0 | 386 |
| Farmers Telephone Company | 1 | 0 | 1 | 0 | 562 |
| Farmers Telephone Cooperative | 1 | 0 | 1 | 0 | 516 |
| Fractel | 1 | 0 | 0 | 1 | 732 |
| Great Plains Communications | 1 | 0 | 1 | 0 | 448 |
| NORTHERN CO COMM | 1 | 0 | 1 | 0 | 500 |
| Nunn Telephone Company | 1 | 0 | 1 | 0 | 897 |
| Phillips County Telephone Company | 1 | 0 | 1 | 0 | 854 |
| Rico Telephone Company | 1 | 0 | 1 | 0 | 967 |
| Shelltel | 1 | 1 | 0 | 0 | 906 |
| Skyetel | 1 | 0 | 0 | 1 | 990 |
| Stoneham Cooperative Telephone Corporation | 1 | 0 | 1 | 0 | 735 |
| Telstar Communications | 1 | 1 | 0 | 0 | 600 |
| The Peetz Cooperative Telephone Company | 1 | 0 | 1 | 0 | 334 |
| Union Telephone Company | 1 | 0 | 1 | 0 | 365 |
| Vonage | 1 | 0 | 0 | 1 | 807 |
| Willard Telephone Company | 1 | 0 | 1 | 0 | 228 |
Questions developers ask
- Where is area code 970?
- Area code 970 is in Colorado, in the United States: all 789 of its exchanges on record are there. From abroad it is dialled +1 970, then the seven-digit number.
- Is a 970 number mobile or landline?
- Either: in the North American Numbering Plan the line type belongs to the exchange (the three digits after the area code), not to the area code. Of the 789 exchanges on record in 970, 249 (32%) were allocated as mobile, 350 (44%) as fixed line, 176 (22%) as VoIP and 14 (2%) have no line type on record. A number can have been ported since, to another carrier and even to another line type.
- Which carriers have numbers in area code 970?
- 49 carriers hold exchanges in 970 on record; the most: Lumen (265), Onvoy (88) and Verizon (87). These are the original allocations: with number portability, a number may be served by another carrier today, which only a live carrier lookup (an HLR or MNP query) can tell.
- How do I validate a 970 phone number?
- In E.164 a 970 number matches ^\+1970[2-9]\d{6}$: +1, the area code, a central office code that does not start with 0 or 1, then four digits. Written nationally it reads (970) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP.