{ "url": "https://phonelookup.dev/prefix/us-447", "npa": "447", "slug": "us-447", "iso": "US", "country": "United States", "regions": [ { "code": "IL", "name": "Illinois", "exchanges": 233 } ], "exchanges": 233, "known": 219, "byLineType": { "fixed_line": 26, "mobile": 59, "unknown": 14, "voip": 134 }, "carriers": [ { "name": "Sinch (Inteliquent)", "exchanges": 58, "byLineType": { "voip": 58 }, "ranges": [ "205–206", "208", "212–213", "215", "221", "223–225", "227–228", "237", "244", "257", "261", "264–274", "277", "288", "290", "317", "344", "347", "387", "410", "427", "437", "440–441", "445", "457", "467", "474", "547", "557", "574", "610", "627", "644", "647", "674", "677", "737", "744", "747", "774", "810", "910" ] }, { "name": "AT&T", "exchanges": 47, "byLineType": { "fixed_line": 8, "mobile": 38, "voip": 1 }, "ranges": [ "204", "207", "216", "229", "235", "240", "249–250", "256", "259", "275", "278–280", "282", "284", "286–287", "289", "291–292", "297–298", "303–305", "308–309", "312–315", "325–332", "334–335", "784–785", "787–788", "876" ] }, { "name": "Fractel", "exchanges": 30, "byLineType": { "voip": 30 }, "ranges": [ "200", "222", "234", "247", "300", "333", "336", "345", "348", "356", "400", "432", "444", "465", "477", "500", "529", "600", "666–667", "758", "766", "777", "786", "800", "842", "888", "900", "946", "999" ] }, { "name": "Emergency Networks", "exchanges": 8, "byLineType": { "mobile": 8 }, "ranges": [ "293–295", "424", "447", "525", "901–902" ] }, { "name": "Ton80 Communications", "exchanges": 8, "byLineType": { "voip": 8 }, "ranges": [ "233", "466", "743", "783", "792", "832", "837", "867" ] }, { "name": "Dish Wireless", "exchanges": 7, "byLineType": { "mobile": 7 }, "ranges": [ "217", "220", "226", "241–242", "248", "255" ] }, { "name": "COMMIO LLC", "exchanges": 6, "byLineType": { "voip": 6 }, "ranges": [ "231–232", "262–263", "285", "770" ] }, { "name": "Nuso", "exchanges": 6, "byLineType": { "fixed_line": 6 }, "ranges": [ "243", "245–246", "251", "253–254" ] }, { "name": "Skyetel", "exchanges": 5, "byLineType": { "voip": 5 }, "ranges": [ "210", "301", "626", "715", "725" ] }, { "name": "Bandwidth.com", "exchanges": 4, "byLineType": { "voip": 4 }, "ranges": [ "260", "310", "324", "442" ] }, { "name": "IP Horizon", "exchanges": 4, "byLineType": { "voip": 4 }, "ranges": [ "201–202", "281", "296" ] }, { "name": "T-Mobile", "exchanges": 4, "byLineType": { "mobile": 4 }, "ranges": [ "219", "306–307", "449" ] }, { "name": "Twilio International", "exchanges": 4, "byLineType": { "voip": 4 }, "ranges": [ "417", "487", "497", "895" ] }, { "name": "Ahoi", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "438", "468", "587" ] }, { "name": "HD Carrier", "exchanges": 3, "byLineType": { "voip": 3 }, "ranges": [ "252", "446", "448" ] }, { "name": "Leap Telecom", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "236", "299", "450" ] }, { "name": "Wavenation", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "316", "318–319" ] }, { "name": "Brightlink Communications", "exchanges": 2, "byLineType": { "voip": 2 }, "ranges": [ "209", "302" ] }, { "name": "Callworks Corporation", "exchanges": 2, "byLineType": { "voip": 2 }, "ranges": [ "258", "283" ] }, { "name": "Paetec Itel", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "230", "239" ] }, { "name": "Terra Nova Telecom", "exchanges": 2, "byLineType": { "voip": 2 }, "ranges": [ "320", "322" ] }, { "name": "Verizon", "exchanges": 2, "byLineType": { "mobile": 2 }, "ranges": [ "238", "276" ] }, { "name": "8x8", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "880" ] }, { "name": "Access2Go", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "218" ] }, { "name": "Computer Technologies", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "214" ] }, { "name": "Exiant", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "439" ] }, { "name": "TELNYX", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "203" ] }, { "name": "Voip Street", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "998" ] } ], "grid": "vvvvmvvfvvvuvvfvmmvmmvvvvvmvvffvvvvmfvmfmmmfvffvmmmfvffmmvvmvvvvvvvvvvvvvvvmmvmmmvmvmvmfvmvmmmmmvmmfvvvmmmmmmmvummmvfvffv-v-vmmmmmmmmvmmv-------vv-vv-------v------------------------------v------------v---------vu-----v------m--v----v----vfvvvv-vvvmvmf------v-------vvvf-----v--v---------v---------v--v----------u-------------m---v-----------------v-------u-v----------------v------------f------------v---------vu--------------vv----------------v--v------------------vv------v--v----------------------u----------u---v---------v-----------v-----vv--v----------v-------v---v---v--v-----vffvff---v-------v---------vu--------------------v----v----v------------------------v--------f---v-------v------v----vmm-------vu----------------------------------v---u-------uu----------------u---------------------vv", "patterns": { "all": "^\\+1447[2-9]\\d{6}$", "fixed_line": "^\\+1447(?:2(?:[08]7|14|[29]9|3[069]|4[356]|5[134])|31[689]|4(?:[36]8|50)|587|78[4578]|876)\\d{4}$", "mobile": "^\\+1447(?:2(?:04|1[679]|2[06]|3[58]|4[0-289]|5[0569]|7[5689]|8[02469]|9[1-578])|3(?:0[3-9]|1[2-4]|2[5-9]|3[0-245])|4(?:24|4[79])|525|90[12])\\d{4}$", "voip": "^\\+1447(?:2(?:0[0-35689]|1[02358]|2[1-578]|3[1-47]|4[47]|5[278]|6\\d|7[0-47]|8[1358]|9[06])|3(?:0[0-2]|1[057]|2[024]|3[36]|4[4578]|56|87)|4(?:00|1[07]|[2589]7|3[279]|4[0-24-68]|6[5-7]|7[47])|5(?:00|29|[45]7|74)|6(?:[01]0|[26][67]|[47][47])|7(?:[12]5|37|4[347]|58|66|7[047]|8[36]|92)|8(?:[01]0|3[27]|42|67|8[08]|95)|9(?:[01]0|46|9[89]))\\d{4}$" }, "sandbox": { "input": "+14475550123", "valid": true, "type": "Fixed line or mobile", "region": "US", "formats": { "e164": "+14475550123", "international": "+1 447-555-0123", "national": "(447) 555-0123", "rfc3966": "tel:+1-447-555-0123" }, "parts": { "countryCode": "+1", "destinationCode": "447", "destinationKind": "area code", "subscriber": "5550123" } }, "faq": [ { "question": "Where is area code 447?", "answer": "Area code 447 is in Illinois, in the United States: all 233 of its exchanges on record are there. From abroad it is dialled +1 447, then the seven-digit number." }, { "question": "Is a 447 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 233 exchanges on record in 447, 59 (25%) were allocated as mobile, 26 (11%) as fixed line, 134 (58%) as VoIP and 14 (6%) 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 447?", "answer": "28 carriers hold exchanges in 447 on record; the most: Sinch (Inteliquent) (58), AT&T (47) and Fractel (30). 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 447 phone number?", "answer": "In E.164 a 447 number matches ^\\+1447[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 (447) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP." } ], "neighbours": { "sameRegion": [ "us-217", "us-224", "us-309", "us-312", "us-331", "us-464", "us-618", "us-630", "us-708", "us-730", "us-773", "us-779", "us-815", "us-847", "us-872" ], "previous": "us-445", "next": "us-448" }, "meta": { "dataAsOf": "2026-10-25", "dataPoints": 233, "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" } ] } }