{ "url": "https://phonelookup.dev/prefix/us-605", "npa": "605", "slug": "us-605", "iso": "US", "country": "United States", "regions": [ { "code": "SD", "name": "South Dakota", "exchanges": 759 } ], "exchanges": 759, "known": 745, "byLineType": { "fixed_line": 468, "mobile": 216, "unknown": 14, "voip": 61 }, "carriers": [ { "name": "Lumen", "exchanges": 115, "byLineType": { "fixed_line": 113, "voip": 2 }, "ranges": [ "223–226", "229", "232", "235", "256", "269", "273", "277", "299", "312", "322–323", "328", "330–336", "338–339", "341–343", "347–348", "352–353", "355–357", "361–362", "367–368", "371", "373", "377–378", "385", "388", "393–394", "399", "404", "413", "415", "423", "432", "472", "504", "509", "524", "534", "540", "546", "550", "574–575", "578", "584", "593", "597", "599", "609–610", "622", "624", "626–627", "636", "638", "642", "644", "655", "665", "668", "677", "679", "727", "731", "734", "737", "740", "743", "773", "776", "782", "786–787", "847", "853–854", "862", "865", "877", "882", "884", "886", "892", "923", "930", "945", "977–978", "983", "987–988", "995–997" ] }, { "name": "Verizon", "exchanges": 102, "byLineType": { "fixed_line": 2, "mobile": 100 }, "ranges": [ "212", "214", "218–220", "222", "228", "237", "261", "270", "281–282", "290–291", "303", "310", "318", "321", "351", "354", "359", "366", "390", "409", "416", "419", "421", "430–431", "450", "453", "461", "464", "467–469", "471", "481", "484", "488", "490", "499", "515–517", "519", "531", "553", "569–570", "572", "580", "590–591", "630–631", "633", "639", "645", "651", "656", "659–660", "670", "680", "682", "695", "713", "759–760", "769", "771", "801", "804", "824", "830–831", "836", "840–841", "846", "848", "850–851", "860–861", "864", "870–871", "880", "890–891", "920", "924", "929", "931", "936", "956", "960", "968", "971", "999" ] }, { "name": "AT&T", "exchanges": 86, "byLineType": { "fixed_line": 5, "mobile": 81 }, "ranges": [ "200–210", "216", "230", "233", "240", "251–252", "254", "265", "268", "280", "295", "300", "319–320", "350", "360", "370", "380–381", "389", "391", "400", "407–408", "412", "440–441", "454", "460", "470", "478", "480", "491", "500", "505", "510", "520", "530", "545", "551", "579", "581", "592", "595", "613–614", "641", "661", "690", "730", "744", "750", "770", "789–790", "821", "828", "839", "844", "857–858", "863", "881", "899", "906", "926–927", "933", "939–941", "944", "949", "970", "980" ] }, { "name": "Midcontinent Communications", "exchanges": 34, "byLineType": { "fixed_line": 34 }, "ranges": [ "213", "262", "271", "274–276", "292", "302", "410", "420", "435", "443–445", "451", "465", "494", "497", "541", "548", "554", "556", "558–559", "561", "568", "571", "588", "643", "658", "689", "791", "878", "893" ] }, { "name": "Knology", "exchanges": 32, "byLineType": { "fixed_line": 32 }, "ranges": [ "238", "253", "260", "263", "267", "297", "306", "327", "372", "498", "552", "573", "647", "664", "672", "684", "716–723", "753", "755", "761", "764", "766–767", "957", "965" ] }, { "name": "Venture Communications Cooperative", "exchanges": 30, "byLineType": { "fixed_line": 30 }, "ranges": [ "258", "264", "266", "285", "287", "324–325", "392", "436", "442", "447–448", "458", "486", "493", "537", "539", "596", "598", "649", "698", "742", "765", "768", "852", "875", "943", "948", "962", "973" ] }, { "name": "Interstate Telecom", "exchanges": 28, "byLineType": { "fixed_line": 28 }, "ranges": [ "272", "345", "479", "483", "489", "532", "542", "586", "623", "625", "628–629", "676", "693", "756", "758", "783–785", "793–795", "826", "832", "873–874", "876", "947" ] }, { "name": "Golden West Telecommunications Cooperative", "exchanges": 27, "byLineType": { "fixed_line": 27 }, "ranges": [ "259", "279", "344", "386", "424", "433", "452", "455", "457", "459", "462", "535", "544", "567", "662", "685", "739", "745", "748", "754", "798", "833", "843", "859", "867", "985", "993" ] }, { "name": "T-Mobile", "exchanges": 24, "byLineType": { "mobile": 24 }, "ranges": [ "215", "231", "308", "376", "418", "508", "521–522", "585", "602", "617", "671", "675", "691", "728", "736", "751", "805", "868", "872", "953", "963", "974", "981" ] }, { "name": "Golden West Communications", "exchanges": 19, "byLineType": { "fixed_line": 19 }, "ranges": [ "286", "364", "369", "387", "473", "557", "583", "648", "654", "669", "673", "683", "747", "775", "835", "842", "856", "879", "925" ] }, { "name": "Sinch (Inteliquent)", "exchanges": 19, "byLineType": { "voip": 19 }, "ranges": [ "250", "317", "340", "405", "496", "566", "605", "620", "657", "674", "702", "808", "838", "888", "905", "910", "972", "975", "998" ] }, { "name": "Bandwidth.com", "exchanges": 14, "byLineType": { "voip": 14 }, "ranges": [ "301", "309", "427", "549", "603", "646", "653", "699", "777", "902", "937", "951–952", "954" ] }, { "name": "James Valley Telecommunications", "exchanges": 13, "byLineType": { "fixed_line": 13 }, "ranges": [ "294", "298", "329", "382", "395–397", "492", "635", "885", "887", "897", "994" ] }, { "name": "Midstate Communications", "exchanges": 10, "byLineType": { "fixed_line": 10 }, "ranges": [ "243", "245", "249", "293", "337", "726", "732", "778–779", "894" ] }, { "name": "Santel Communications Cooperative", "exchanges": 10, "byLineType": { "fixed_line": 10 }, "ranges": [ "227", "236", "248", "495", "527", "796", "849", "883", "928", "935" ] }, { "name": "Valley Telecommunications Cooperative Association", "exchanges": 9, "byLineType": { "fixed_line": 9 }, "ranges": [ "283–284", "426", "437", "439", "577", "762", "889", "955" ] }, { "name": "Airus Inc", "exchanges": 8, "byLineType": { "fixed_line": 8 }, "ranges": [ "307", "315–316", "640", "663", "799", "815", "991" ] }, { "name": "Alliance Communications", "exchanges": 8, "byLineType": { "fixed_line": 8 }, "ranges": [ "482", "529", "543", "582", "594", "772", "934", "984" ] }, { "name": "MCC Telephony", "exchanges": 8, "byLineType": { "fixed_line": 8 }, "ranges": [ "304", "414", "560", "632", "686", "710", "792", "922" ] }, { "name": "McCook Cooperative Telephone Company", "exchanges": 8, "byLineType": { "fixed_line": 8 }, "ranges": [ "239", "246–247", "425", "449", "485", "523", "825" ] }, { "name": "Mt Rushmore Telephone Company", "exchanges": 8, "byLineType": { "fixed_line": 8 }, "ranges": [ "255", "326", "384", "463", "487", "563", "589", "666" ] }, { "name": "RC Communications", "exchanges": 8, "byLineType": { "fixed_line": 8 }, "ranges": [ "398", "434", "637", "652", "738", "818", "932", "938" ] }, { "name": "West River Cooperative Telephone Company", "exchanges": 8, "byLineType": { "fixed_line": 8 }, "ranges": [ "244", "257", "374–375", "456", "788", "797", "866" ] }, { "name": "Dickey Rural Telephone Cooperative", "exchanges": 7, "byLineType": { "fixed_line": 7 }, "ranges": [ "289", "346", "358", "379", "383", "687", "735" ] }, { "name": "Ton80 Communications", "exchanges": 7, "byLineType": { "voip": 7 }, "ranges": [ "634", "746", "752", "898", "909", "982", "992" ] }, { "name": "Cheyenne River Sioux Tribe Telephone Authority", "exchanges": 5, "byLineType": { "fixed_line": 5 }, "ranges": [ "365", "466", "538", "733", "964" ] }, { "name": "Sioux Valley Telephone Company", "exchanges": 5, "byLineType": { "fixed_line": 5 }, "ranges": [ "363", "428", "446", "942", "946" ] }, { "name": "Consolidated Telcom", "exchanges": 4, "byLineType": { "fixed_line": 4 }, "ranges": [ "278", "564", "576", "855" ] }, { "name": "Dish Wireless", "exchanges": 4, "byLineType": { "mobile": 4 }, "ranges": [ "503", "506", "512", "812" ] }, { "name": "Great Plains Communications", "exchanges": 4, "byLineType": { "fixed_line": 4 }, "ranges": [ "288", "429", "822", "969" ] }, { "name": "Swiftel Communications", "exchanges": 4, "byLineType": { "fixed_line": 4 }, "ranges": [ "688", "692", "696–697" ] }, { "name": "Fractel", "exchanges": 3, "byLineType": { "voip": 3 }, "ranges": [ "600", "667", "900" ] }, { "name": "Golden West Telecommunications", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "296", "724", "729" ] }, { "name": "James Valley Communications", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "313", "475", "725" ] }, { "name": "Long Lines Metro", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "242", "422", "780" ] }, { "name": "NATIVE AMERICAN TELEPHONE", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "562", "615", "781" ] }, { "name": "TELNYX", "exchanges": 3, "byLineType": { "voip": 3 }, "ranges": [ "305", "502", "979" ] }, { "name": "Brightlink Communications", "exchanges": 2, "byLineType": { "mobile": 1, "voip": 1 }, "ranges": [ "681", "989" ] }, { "name": "COMMIO LLC", "exchanges": 2, "byLineType": { "voip": 2 }, "ranges": [ "705", "820" ] }, { "name": "Emergency Networks", "exchanges": 2, "byLineType": { "mobile": 2 }, "ranges": [ "606", "616" ] }, { "name": "HD Carrier", "exchanges": 2, "byLineType": { "voip": 2 }, "ranges": [ "607–608" ] }, { "name": "HickoryTech", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "547", "565" ] }, { "name": "Hills Telephone Company", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "474", "757" ] }, { "name": "Kennebec Telephone Company", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "869", "895" ] }, { "name": "Native American", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "417", "477" ] }, { "name": "Nuso", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "513", "809" ] }, { "name": "Paetec Itel", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "221", "741" ] }, { "name": "SSTELECOM", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "438", "621" ] }, { "name": "Union Telephone Company", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "526", "528" ] }, { "name": "Valley Communications", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "525", "827" ] }, { "name": "West River Telecom", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "823", "845" ] }, { "name": "Access2Go", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "709" ] }, { "name": "Alaska Native Wireless", "exchanges": 1, "byLineType": { "mobile": 1 }, "ranges": [ "514" ] }, { "name": "Beresford Municipal Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "763" ] }, { "name": "CSC Wireless LLC", "exchanges": 1, "byLineType": { "mobile": 1 }, "ranges": [ "403" ] }, { "name": "Comcast", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "518" ] }, { "name": "EdgeTe", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "774" ] }, { "name": "Exiant", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "650" ] }, { "name": "Faith Municipal Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "967" ] }, { "name": "Farmers Mutual Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "678" ] }, { "name": "Fibercom", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "217" ] }, { "name": "Frontier", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "349" ] }, { "name": "IP Horizon", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "401" ] }, { "name": "James Valley Wireless", "exchanges": 1, "byLineType": { "mobile": 1 }, "ranges": [ "715" ] }, { "name": "Jefferson Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "966" ] }, { "name": "Kadoka Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "837" ] }, { "name": "Midco Voice", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "604" ] }, { "name": "Midstate Telecom", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "234" ] }, { "name": "Mitchell Telecom", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "990" ] }, { "name": "Northeast Nebraska Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "587" ] }, { "name": "RT Communications", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "749" ] }, { "name": "Red River Communications", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "533" ] }, { "name": "Ringer Mobile", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "701" ] }, { "name": "SDN Communications", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "241" ] }, { "name": "Standing Rock Telecom", "exchanges": 1, "byLineType": { "mobile": 1 }, "ranges": [ "314" ] }, { "name": "Terra Nova Telecom", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "800" ] }, { "name": "Three River Telco", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "834" ] }, { "name": "Twilio International", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "601" ] }, { "name": "Valley Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "694" ] }, { "name": "Vonage", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "961" ] }, { "name": "Wavenation", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "476" ] }, { "name": "Wide Voice", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "501" ] } ], "grid": "mmmmmmmmmmmumfmmmfmmmfmfffffmfmmfmfffmffmfffffffffvmmffffffffmfffmffmfmfffffffffmmmfffffffmmfffmffffmvfmfvffmvmuffmffvmmmmffffffffffffffffffvfffffffffmmffmffffmmfffffmfffmfffffmfffmmfffffffmmmffffffffmv-mfv-mmmfumfffmfmmfmfffffvffmmffffffffmmffffffffmffmmfffffmmffmffmmmmmffffffmfmmffmfffmfmmffffvffmmfvmfmm-mfmumfmmmmvmmmmfffffffmmffff-ffffffffmfffvfmfffuffffffffffvffmmfmffffffmmmfffmffffmmmfffffffvvmvfvmvvffu-mffmm--vfffffffffmmfmvffffmfmfffmvfffvmfvffmvfmmmfffffvffmmffvmffffmmmfffffffmmfffmfffvufv--v---vfu-m-mffffffffffffmfmfffffmfffvfffmfvfffmmvffffffmmffffffffmmmffvffvfffffffffffmmfffffffffvm--mm--vf-um--f--f-vmffmfffm-mmffffffvmmmffmfmfmfmmfffffmmfmmfmmfffmfmmmfffffffmmffffffvfmmffff-fvmv-v--vf--vvu--------m-ffmfmmfmvmfmffmvffmmffmffffmuvvmvfmfuumvfmffffmfmmvfmvuffvmmvfff-ffvffvfffffvm", "patterns": { "all": "^\\+1605[2-9]\\d{6}$", "fixed_line": "^\\+1605(?:2(?:1[37]|2[13-79]|3[24-689]|[47][1-9]|[58][3-9]|6[02-4679]|9[2-46-9])|3(?:0[2467]|1[2356]|[29][2-9]|3\\d|4[1-9]|5[235-8]|[67][1-57-9]|8[2-8])|4(?:04|1[03-57]|2[02-689]|[34][2-9]|5[125-9]|6[2356]|7[2-79]|8[235-79]|9[2-578])|5(?:0[149]|13|[29][3-9]|3[2-57-9]|4[0-46-8]|5[02-46-9]|6[0-578]|7[13-8]|8[2-46-9])|6(?:0[49]|1[045]|2[1-9]|3[25-8]|4[02-47-9]|5[2458]|6[2-689]|7[236-9]|8[3-9]|9[2-46-8])|7(?:01|1[06-9]|2[0-79]|3[1-57-9]|4[1-357-9]|5[3-8]|6[1-8]|7[235689]|8[0-8]|9[1-9])|8(?:09|1[58]|2[235-7]|3[2-7]|4[23579]|5[2-69]|6[25-79]|7[3-9]|8[2-79]|9[2-57])|9(?:06|2[2358]|3[24589]|4[235-8]|5[57]|6[24-79]|7[378]|8[3-578]|9[013-7]))\\d{4}$", "mobile": "^\\+1605(?:2(?:0\\d|1[024-689]|2[028]|3[0137]|[47]0|5[12]|6[158]|8[0-2]|9[015])|3(?:0[038]|1[0489]|[29][01]|5[0149]|[67][06]|8[019])|4(?:0[037-9]|1[2689]|21|[34][01]|5[034]|6[0147-9]|7[018]|8[0148]|9[019])|5(?:0[03568]|1[024-79]|[29][0-2]|3[01]|45|51|69|7[029]|8[015])|6(?:0[26]|1[367]|3[0139]|4[15]|5[169]|6[01]|[79][015]|8[0-2])|7(?:1[35]|28|3[06]|44|5[019]|6[09]|7[01]|89|90)|8(?:0[145]|12|2[148]|[39][019]|4[01468]|5[0178]|6[01348]|7[0-2]|8[01])|9(?:2[04679]|3[136]|4[0149]|5[36]|6[038]|7[014]|8[01]|99))\\d{4}$", "voip": "^\\+1605(?:250|3(?:0[159]|17|40)|4(?:0[15]|27|96)|5(?:02|18|49|66)|6(?:0[013578]|20|[37]4|46|5[037]|67|99)|7(?:0[259]|4[06]|52|7[47])|8(?:0[08]|20|[389]8)|9(?:0[0259]|10|3[07]|5[124]|61|7[259]|8[29]|9[28]))\\d{4}$" }, "sandbox": { "input": "+16055550123", "valid": true, "type": "Fixed line or mobile", "region": "US", "formats": { "e164": "+16055550123", "international": "+1 605-555-0123", "national": "(605) 555-0123", "rfc3966": "tel:+1-605-555-0123" }, "parts": { "countryCode": "+1", "destinationCode": "605", "destinationKind": "area code", "subscriber": "5550123" } }, "faq": [ { "question": "Where is area code 605?", "answer": "Area code 605 is in South Dakota, in the United States: all 759 of its exchanges on record are there. From abroad it is dialled +1 605, then the seven-digit number." }, { "question": "Is a 605 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 759 exchanges on record in 605, 216 (28%) were allocated as mobile, 468 (62%) as fixed line, 61 (8%) 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 605?", "answer": "82 carriers hold exchanges in 605 on record; the most: Lumen (115), Verizon (102) and AT&T (86). 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 605 phone number?", "answer": "In E.164 a 605 number matches ^\\+1605[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 (605) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP." } ], "neighbours": { "sameRegion": [], "previous": "ca-604", "next": "us-606" }, "meta": { "dataAsOf": "2026-10-25", "dataPoints": 759, "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" } ] } }