{ "url": "https://phonelookup.dev/prefix/us-970", "npa": "970", "slug": "us-970", "iso": "US", "country": "United States", "regions": [ { "code": "CO", "name": "Colorado", "exchanges": 789 } ], "exchanges": 789, "known": 775, "byLineType": { "fixed_line": 350, "mobile": 249, "unknown": 14, "voip": 176 }, "carriers": [ { "name": "Lumen", "exchanges": 265, "byLineType": { "fixed_line": 261, "voip": 4 }, "ranges": [ "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" ] }, { "name": "Onvoy", "exchanges": 88, "byLineType": { "voip": 88 }, "ranges": [ "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" ] }, { "name": "Verizon", "exchanges": 87, "byLineType": { "fixed_line": 10, "mobile": 77 }, "ranges": [ "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" ] }, { "name": "T-Mobile", "exchanges": 77, "byLineType": { "mobile": 77 }, "ranges": [ "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" ] }, { "name": "AT&T", "exchanges": 60, "byLineType": { "fixed_line": 6, "mobile": 54 }, "ranges": [ "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" ] }, { "name": "Ton80 Communications", "exchanges": 22, "byLineType": { "voip": 22 }, "ranges": [ "525", "543", "727", "733", "738", "809", "837", "868", "877", "932", "935", "937", "955", "969", "979", "992–998" ] }, { "name": "Union Telephone", "exchanges": 17, "byLineType": { "mobile": 17 }, "ranges": [ "269", "326", "537", "574", "655", "734", "745", "750–751", "755–758", "767", "770", "873", "942" ] }, { "name": "Bandwidth.com", "exchanges": 16, "byLineType": { "voip": 16 }, "ranges": [ "200", "480", "546", "616", "633", "648", "717", "795", "813", "832", "841", "852", "857", "908", "913", "934" ] }, { "name": "COMMIO LLC", "exchanges": 14, "byLineType": { "voip": 14 }, "ranges": [ "338", "603–607", "806", "843", "850", "860–861", "863", "869", "891" ] }, { "name": "Peerless Network", "exchanges": 14, "byLineType": { "voip": 14 }, "ranges": [ "287", "289", "410", "528", "591", "636", "644", "659", "661", "693", "713", "715", "718", "890" ] }, { "name": "Comcast", "exchanges": 10, "byLineType": { "voip": 10 }, "ranges": [ "232", "460", "504", "561", "602", "657", "746", "771", "855", "909" ] }, { "name": "San Isabel Telecom", "exchanges": 8, "byLineType": { "fixed_line": 8 }, "ranges": [ "273", "277", "280", "337", "754", "766", "777", "790" ] }, { "name": "Cellular One", "exchanges": 7, "byLineType": { "mobile": 7 }, "ranges": [ "466–467", "520", "554", "630", "768", "961" ] }, { "name": "Plains Cooperative Telephone Association", "exchanges": 7, "byLineType": { "fixed_line": 7 }, "ranges": [ "354", "357–359", "362", "383", "664" ] }, { "name": "Nucla-Naturita Telephone Company", "exchanges": 6, "byLineType": { "fixed_line": 5, "mobile": 1 }, "ranges": [ "428", "859", "862", "864–865", "931" ] }, { "name": "Spectrum", "exchanges": 6, "byLineType": { "fixed_line": 6 }, "ranges": [ "314", "424", "438", "549", "628", "707" ] }, { "name": "TDS Telecom", "exchanges": 6, "byLineType": { "fixed_line": 6 }, "ranges": [ "527", "835", "856", "872", "921", "929" ] }, { "name": "FastTrack Communications", "exchanges": 5, "byLineType": { "fixed_line": 5 }, "ranges": [ "341", "399", "444", "585", "828" ] }, { "name": "UBET Wireless", "exchanges": 5, "byLineType": { "mobile": 5 }, "ranges": [ "220", "321–322", "720", "941" ] }, { "name": "Allstream", "exchanges": 4, "byLineType": { "fixed_line": 4 }, "ranges": [ "235", "342", "449", "670" ] }, { "name": "Emergency Networks", "exchanges": 4, "byLineType": { "mobile": 4 }, "ranges": [ "303", "780", "802", "907" ] }, { "name": "Paetec Itel", "exchanges": 4, "byLineType": { "fixed_line": 4 }, "ranges": [ "475", "530", "578", "612" ] }, { "name": "Wiggins Telephone Association", "exchanges": 4, "byLineType": { "fixed_line": 4 }, "ranges": [ "437", "483", "656", "895" ] }, { "name": "Zippy Tech", "exchanges": 4, "byLineType": { "fixed_line": 4 }, "ranges": [ "236", "403", "462", "981" ] }, { "name": "American Messaging", "exchanges": 3, "byLineType": { "mobile": 3 }, "ranges": [ "202", "621", "681" ] }, { "name": "Haxtun Telephone Company", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "265", "774", "886" ] }, { "name": "TELNYX", "exchanges": 3, "byLineType": { "voip": 3 }, "ranges": [ "312", "831", "839" ] }, { "name": "Allo Communications", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "503", "743" ] }, { "name": "Dish Wireless", "exchanges": 2, "byLineType": { "mobile": 2 }, "ranges": [ "902", "905" ] }, { "name": "Forthought.net", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "678", "697" ] }, { "name": "TDS Baja Broadband", "exchanges": 2, "byLineType": { "voip": 2 }, "ranges": [ "912", "971" ] }, { "name": "Dubois Telephone Exchange", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "583" ] }, { "name": "Eastern Slope Rural Telephone Association", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "386" ] }, { "name": "Farmers Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "562" ] }, { "name": "Farmers Telephone Cooperative", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "516" ] }, { "name": "Fractel", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "732" ] }, { "name": "Great Plains Communications", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "448" ] }, { "name": "NORTHERN CO COMM", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "500" ] }, { "name": "Nunn Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "897" ] }, { "name": "Phillips County Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "854" ] }, { "name": "Rico Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "967" ] }, { "name": "Shelltel", "exchanges": 1, "byLineType": { "mobile": 1 }, "ranges": [ "906" ] }, { "name": "Skyetel", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "990" ] }, { "name": "Stoneham Cooperative Telephone Corporation", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "735" ] }, { "name": "Telstar Communications", "exchanges": 1, "byLineType": { "mobile": 1 }, "ranges": [ "600" ] }, { "name": "The Peetz Cooperative Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "334" ] }, { "name": "Union Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "365" ] }, { "name": "Vonage", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "807" ] }, { "name": "Willard Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "228" ] } ], "grid": "vmmfffffmmmufmmmmmmmmfmffffmffmmvvmfffvfffffffffffmfffffffmfmmfffffffmmfffmmfffffmffffmvfvmmfvmffffvfmmmfmfmmmmuvfffmmmmvmmfffmffffmfmffffvffffvfffffffffffmffffvmffffffffmmffffmffmmmffffffmmmmfmmfmmmfvmmfmmmffmvummvmfmmfmmfvffmfmfmvvmffvfffvmvmfmvvffvvmfffffffvffffvmmfvmmfmffffvfvmfffmmffvfffffffffvfmmfvmfvvmvuvfvmfvmmmffffvffvffmffmfvmvmvffvfmvfvfvmfmmumfvmmvffffmmffmmvmmmmffvmmmfmffffmmvvfvmmmvmmvvvvvvvvvvuffvmvmmfmmfmfffffmmmvvmfvmffmffmvfmvvvvvffmmfvfvfvffffvffffvffffvfffvmmfvmfffmmmmvmvvfmmummvffffmvmumvmvvvv-mvfffffvfmffvvmfffvmfvmffmvvfmmmfmfmmmmmfvfffffmmmmvvmfmmffmmmvmvfmmvvfvmmvvvfvmv-mmmfvvvvfufvmmmmfmffmffmfffmvvvfffmvfvfvfvmfmffvvfvffvfvffvvfvffvfvvfffmfffvffmfffffffvmvvmvvfmffmvmmmmmmmvvmuvvmmvm-vffffffffffmfvmvvvvvmmmmfffmfmfu----v-muummffvvmffvvvvm-mummvmfm-fmmmmmv-vvvvvvvv", "patterns": { "all": "^\\+1970[2-9]\\d{6}$", "fixed_line": "^\\+1970(?:2(?:0[3-7]|12|2[13-689]|3[5-79]|4\\d|5[1-79]|6[2-8]|7[1-36-9]|8[02-58]|9[25-8])|3(?:0[046]|1[3-5]|2[3-57-9]|3[024-79]|4[0-24-9]|5[0-46-9]|6[2-9]|7[2-578]|8[2-7]|9[259])|4(?:0[378]|1[69]|2[24579]|3[457-9]|4[489]|5[3-9]|6[1-48]|7[24-79]|8[2-478]|9[0-8])|5(?:0[036]|1[36]|2[1-4679]|3[0235]|4[12479]|5[27]|6[2-589]|7[78]|8[35-8]|93)|6(?:1[239]|2[24-8]|3[589]|4[125]|5[2368]|[67][02-57-9]|8[36-8]|97)|7(?:0[4-7]|2[2-68]|3[015-7]|4[0348]|5[24]|6[02-6]|7[478]|85|9[07])|8(?:05|1[028]|2[01346-8]|3[3-58]|4[02578]|5[134689]|6[2457]|7[0-24-689]|8[1-7]|9[578])|9(?:2\\d|31|4[3-579]|6[2378]|8[14]))\\d{4}$", "mobile": "^\\+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}$", "voip": "^\\+1970(?:2(?:00|3[238]|8[79]|9[39])|3(?:12|[26]0|38|43)|4(?:00|1[04]|23|3[126]|4[0267]|5[01]|6[059]|78|8[09]|99)|5(?:0[478]|1[0247]|2[58]|3[68]|4[0368]|5[08]|61|7[29]|9[1248])|6(?:0[1-9]|1[046]|3[236]|4[47-9]|5[0179]|[67][16]|8[04]|9[356])|7(?:0[39]|1[35-8]|2[17]|3[238]|4[167]|61|7[12]|8[2489]|9[14-68])|8(?:0[06-9]|13|3[0-279]|4[139]|5[0257]|6[013689]|77|88|9[0134])|9(?:0[089]|1[2369]|3[24-8]|55|6[459]|7[0-29]|9[02-9]))\\d{4}$" }, "sandbox": { "input": "+19705550123", "valid": true, "type": "Fixed line or mobile", "region": "US", "formats": { "e164": "+19705550123", "international": "+1 970-555-0123", "national": "(970) 555-0123", "rfc3966": "tel:+1-970-555-0123" }, "parts": { "countryCode": "+1", "destinationCode": "970", "destinationKind": "area code", "subscriber": "5550123" } }, "faq": [ { "question": "Where is area code 970?", "answer": "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." }, { "question": "Is a 970 number mobile or landline?", "answer": "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." }, { "question": "Which carriers have numbers in area code 970?", "answer": "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." }, { "question": "How do I validate a 970 phone number?", "answer": "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." } ], "neighbours": { "sameRegion": [ "us-303", "us-719", "us-720", "us-983" ], "previous": "us-959", "next": "us-971" }, "meta": { "dataAsOf": "2026-10-25", "dataPoints": 789, "references": [ { "authority": "NANPA", "title": "North American Numbering Plan Administrator", "url": "https://nanpa.com/" }, { "authority": "CNAC", "title": "Canadian Numbering Administrator", "url": "https://www.cnac.ca/" }, { "authority": "ITU", "title": "National numbering plan: United States", "url": "https://www.itu.int/oth/T02020000DE/en" } ] } }