{ "url": "https://phonelookup.dev/prefix/us-747", "npa": "747", "slug": "us-747", "iso": "US", "country": "United States", "regions": [ { "code": "CA", "name": "California", "exchanges": 275 } ], "exchanges": 275, "known": 260, "byLineType": { "fixed_line": 27, "mobile": 100, "unknown": 15, "voip": 133 }, "carriers": [ { "name": "T-Mobile", "exchanges": 61, "byLineType": { "mobile": 61 }, "ranges": [ "203", "213", "218", "230–231", "237–238", "240–241", "243", "246", "250", "252", "255–257", "260", "262", "265", "267", "269", "274", "276", "279", "283", "286–287", "291", "296", "305–306", "308", "313–314", "316", "320–321", "324", "329", "331", "347", "349–350", "352–354", "361", "363–365", "368–374", "383–384", "389", "465" ] }, { "name": "Onvoy", "exchanges": 47, "byLineType": { "voip": 47 }, "ranges": [ "204–205", "212", "245", "300", "307", "310", "323", "327", "335", "337–341", "343–344", "346", "351", "357–360", "386–387", "390–393", "400", "441", "444", "447", "476–477", "500", "529", "600", "666", "717", "727", "737", "747", "774", "800", "895", "900" ] }, { "name": "Fractel", "exchanges": 39, "byLineType": { "voip": 39 }, "ranges": [ "336", "342", "345", "348", "356", "366", "377", "388", "399", "474", "488", "499", "566–567", "577", "588", "599", "667", "677", "688", "699", "724", "732", "744", "758", "766", "786", "788–789", "799", "842", "877", "899", "922", "944", "946", "955", "966", "977" ] }, { "name": "AT&T", "exchanges": 33, "byLineType": { "fixed_line": 5, "mobile": 27, "voip": 1 }, "ranges": [ "206", "209–210", "214", "219", "235", "244", "259", "261", "266", "271", "273", "275", "282", "284", "288–290", "295", "301", "303–304", "312", "319", "332", "362", "376", "378", "380", "385", "609", "745", "998" ] }, { "name": "Bandwidth.com", "exchanges": 24, "byLineType": { "voip": 24 }, "ranges": [ "207–208", "216–217", "222", "236", "248", "253–254", "263", "268", "285", "292", "297–298", "302", "309", "317", "325–326", "328", "334", "777", "999" ] }, { "name": "Ton80 Communications", "exchanges": 11, "byLineType": { "voip": 11 }, "ranges": [ "367", "397", "426", "463", "466", "528", "746", "767", "832", "836–837" ] }, { "name": "Lumen", "exchanges": 10, "byLineType": { "fixed_line": 9, "voip": 1 }, "ranges": [ "200–202", "221", "227", "229", "233", "242", "251", "272" ] }, { "name": "Verizon", "exchanges": 10, "byLineType": { "fixed_line": 3, "mobile": 7 }, "ranges": [ "215", "224", "232", "234", "239", "258", "277", "318", "333", "381" ] }, { "name": "Peerless Network", "exchanges": 5, "byLineType": { "voip": 5 }, "ranges": [ "220", "223", "249", "281", "322" ] }, { "name": "Spectrum", "exchanges": 4, "byLineType": { "fixed_line": 4 }, "ranges": [ "225–226", "264", "888" ] }, { "name": "Emergency Networks", "exchanges": 2, "byLineType": { "mobile": 2 }, "ranges": [ "375", "850" ] }, { "name": "Shelltel", "exchanges": 2, "byLineType": { "mobile": 2 }, "ranges": [ "278", "280" ] }, { "name": "Vonage", "exchanges": 2, "byLineType": { "voip": 2 }, "ranges": [ "293", "299" ] }, { "name": "Access2Go", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "315" ] }, { "name": "Barr Tell Usa", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "355" ] }, { "name": "BluIP Inc", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "270" ] }, { "name": "ConnectTo Communications", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "228" ] }, { "name": "Dish Wireless", "exchanges": 1, "byLineType": { "mobile": 1 }, "ranges": [ "379" ] }, { "name": "Integrated Path Communications", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "755" ] }, { "name": "Paetec Itel", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "494" ] }, { "name": "Tpx Communications", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "247" ] }, { "name": "Twilio International", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "294" ] }, { "name": "Utility Telephone", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "330" ] } ], "grid": "fffmvvmvvmfuvmmmvvmmvfvvffffffmmmvfmvmmmmmfmmvmfvvmfmvvmmmmmmfmvfmmmvmvmfmmmmmmmmvmmmvmmmmmmvvvmmvvvvmvmmmmvmvvummmvmvfmmmvvmvvvvmfmmmvvvvvvvvvvvvvmvmmvmmmfvvvvvmmmmmvvmmmmmmmmmvmmfm-mmfvvvmvvvv---v-vv----------u--------------v--------------v--v--v---------------v-mv-------v-vv----------v-----f----vv----------u----------------vv-------------------------u----------vv---------v----------v----------vv--------m-u------------------------------------------------------vv---------v----------v----------vu----------u-----v------v--v----v----v------vfvv-------f--v-------vv------v--v--------v-vv---------vv----------u--------------------v---vv----v-------m--u-----------------------v----------f------v---vv----------u----------v---------------------v-v---u----v--uu------v---------uv--------------------vv", "patterns": { "all": "^\\+1747[2-9]\\d{6}$", "fixed_line": "^\\+1747(?:2(?:0[0-2]|10|2[14-9]|34|4[27]|51|6[14]|72)|3(?:18|30|55|8[05])|494|7[45]5|888)\\d{4}$", "mobile": "^\\+1747(?:2(?:0[369]|1[3-589]|3[0-257-9]|4[01346]|5[025-9]|6[025-79]|7[13-9]|8[02-46-9]|9[0156])|3(?:0[13-68]|1[2-469]|2[0149]|3[1-3]|4[79]|5[02-4]|6[1-589]|7[0-689]|8[1349])|465|609|850)\\d{4}$", "voip": "^\\+1747(?:2(?:0[4578]|1[267]|2[023]|3[36]|4[589]|5[34]|6[38]|70|8[15]|9[2-47-9])|3(?:0[0279]|1[057]|2[235-8]|3[4-9]|4[0-68]|5[16-9]|6[067]|77|8[6-8]|9[0-379])|4(?:00|26|4[147]|6[36]|7[467]|88|99)|5(?:00|2[89]|6[67]|77|88|99)|6(?:00|6[67]|77|88|99)|7(?:17|[27][47]|3[27]|4[467]|58|6[67]|8[689]|99)|8(?:00|3[267]|42|77|9[59])|9(?:00|22|4[46]|55|66|77|9[89]))\\d{4}$" }, "sandbox": { "input": "+17475550123", "valid": true, "type": "Fixed line or mobile", "region": "US", "formats": { "e164": "+17475550123", "international": "+1 747-555-0123", "national": "(747) 555-0123", "rfc3966": "tel:+1-747-555-0123" }, "parts": { "countryCode": "+1", "destinationCode": "747", "destinationKind": "area code", "subscriber": "5550123" } }, "faq": [ { "question": "Where is area code 747?", "answer": "Area code 747 is in California, in the United States: all 275 of its exchanges on record are there. From abroad it is dialled +1 747, then the seven-digit number." }, { "question": "Is a 747 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 275 exchanges on record in 747, 100 (36%) were allocated as mobile, 27 (10%) as fixed line, 133 (48%) as VoIP and 15 (5%) 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 747?", "answer": "23 carriers hold exchanges in 747 on record; the most: T-Mobile (61), Onvoy (47) and Fractel (39). 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 747 phone number?", "answer": "In E.164 a 747 number matches ^\\+1747[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 (747) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP." } ], "neighbours": { "sameRegion": [ "us-209", "us-213", "us-279", "us-310", "us-323", "us-341", "us-350", "us-369", "us-408", "us-415", "us-424", "us-442", "us-510", "us-530", "us-559", "us-562", "us-619", "us-626", "us-628", "us-650", "us-657", "us-661", "us-669", "us-707", "us-714", "us-738", "us-760", "us-805", "us-818", "us-820", "us-831", "us-840", "us-858", "us-909", "us-916", "us-925", "us-949", "us-951" ], "previous": "us-743", "next": "ca-753" }, "meta": { "dataAsOf": "2026-10-25", "dataPoints": 275, "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" } ] } }