{ "url": "https://phonelookup.dev/prefix/us-432", "npa": "432", "slug": "us-432", "iso": "US", "country": "United States", "regions": [ { "code": "TX", "name": "Texas", "exchanges": 377 } ], "exchanges": 377, "known": 342, "byLineType": { "fixed_line": 175, "mobile": 93, "unknown": 35, "voip": 74 }, "carriers": [ { "name": "AT&T", "exchanges": 127, "byLineType": { "fixed_line": 86, "mobile": 35, "voip": 6 }, "ranges": [ "200", "207", "210", "217", "220–222", "227", "230", "232", "235–236", "240", "244", "246–248", "250–251", "253–254", "257", "260", "263–264", "266–271", "276", "289", "299", "304", "309–310", "312", "321", "329–337", "346", "351", "362–363", "366–368", "381", "385–386", "413", "426", "438", "456", "466", "488", "495", "498–499", "520", "522", "527–528", "530", "535", "538", "547", "550", "552–553", "558–561", "563", "567", "570–571", "580", "582", "586", "620", "638–640", "652", "681–689", "693–694", "697", "699", "703", "729", "741–742", "756", "758", "770", "788", "818", "827", "837", "848", "853", "878", "880", "935", "940", "943", "955", "994" ] }, { "name": "Verizon", "exchanges": 33, "byLineType": { "fixed_line": 1, "mobile": 32 }, "ranges": [ "202", "208–209", "213", "215", "231", "234", "238", "241", "249", "258", "284", "288", "290", "294–295", "300–302", "307", "326", "338", "425", "448", "556–557", "631", "634", "661", "664", "803", "813", "894" ] }, { "name": "Onvoy", "exchanges": 29, "byLineType": { "voip": 29 }, "ranges": [ "203", "224–225", "239", "265", "274", "278", "286–287", "293", "314", "340–341", "347", "372", "389", "400", "410", "423", "472", "505", "526", "577", "617", "666", "732", "777", "888", "999" ] }, { "name": "Fractel", "exchanges": 19, "byLineType": { "voip": 19 }, "ranges": [ "322", "348", "356", "433", "465", "500", "529", "588", "600", "667", "766", "786", "799", "842", "846", "899", "900", "946", "966" ] }, { "name": "Windstream", "exchanges": 19, "byLineType": { "fixed_line": 19 }, "ranges": [ "223", "233", "259", "273", "283", "297", "343", "375", "377", "445", "447", "457", "464", "467", "523–525", "536", "596" ] }, { "name": "T-Mobile", "exchanges": 17, "byLineType": { "mobile": 17 }, "ranges": [ "201", "212", "306", "349", "352", "373", "416", "517", "599", "603", "755", "816", "889", "923–924", "967", "978" ] }, { "name": "Big Bend Telephone", "exchanges": 15, "byLineType": { "fixed_line": 15 }, "ranges": [ "216", "229", "291–292", "345", "358", "364", "371", "376", "384", "395", "424", "477", "753", "836" ] }, { "name": "Lumen", "exchanges": 15, "byLineType": { "fixed_line": 15 }, "ranges": [ "214", "226", "242", "252", "296", "360", "614", "618", "653", "692", "698", "789", "847", "897", "934" ] }, { "name": "Wes-Tex Telephone Cooperative", "exchanges": 10, "byLineType": { "fixed_line": 10 }, "ranges": [ "353–354", "393–394", "397–399", "458–459", "965" ] }, { "name": "Optimum", "exchanges": 7, "byLineType": { "fixed_line": 7 }, "ranges": [ "218", "327–328", "355", "606", "701", "704" ] }, { "name": "Bandwidth.com", "exchanges": 5, "byLineType": { "voip": 5 }, "ranges": [ "237", "245", "279", "305", "695" ] }, { "name": "AMA TechTel", "exchanges": 4, "byLineType": { "fixed_line": 4 }, "ranges": [ "255", "344", "455", "537" ] }, { "name": "NTS Communications", "exchanges": 4, "byLineType": { "fixed_line": 4 }, "ranges": [ "204–206", "339" ] }, { "name": "1stPoint Communications", "exchanges": 3, "byLineType": { "mobile": 3 }, "ranges": [ "285", "298", "303" ] }, { "name": "Astound Broadband", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "262", "272", "275" ] }, { "name": "Emergency Networks", "exchanges": 3, "byLineType": { "mobile": 3 }, "ranges": [ "434", "436", "901" ] }, { "name": "IP Horizon", "exchanges": 3, "byLineType": { "voip": 3 }, "ranges": [ "280", "342", "350" ] }, { "name": "Paetec Itel", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "261", "308", "315" ] }, { "name": "Brightlink Communications", "exchanges": 2, "byLineType": { "mobile": 1, "voip": 1 }, "ranges": [ "219", "316" ] }, { "name": "Skyetel", "exchanges": 2, "byLineType": { "voip": 2 }, "ranges": [ "320", "422" ] }, { "name": "TELNYX", "exchanges": 2, "byLineType": { "voip": 2 }, "ranges": [ "277", "313" ] }, { "name": "USFON INC", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "444", "800" ] }, { "name": "WESTEX Telecom", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "607", "714" ] }, { "name": "Access2Go", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "282" ] }, { "name": "Ahoi", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "587" ] }, { "name": "CSC Wireless LLC", "exchanges": 1, "byLineType": { "mobile": 1 }, "ranges": [ "256" ] }, { "name": "Comcast", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "319" ] }, { "name": "Dish Wireless", "exchanges": 1, "byLineType": { "mobile": 1 }, "ranges": [ "323" ] }, { "name": "HD Carrier", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "359" ] }, { "name": "Nuso", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "318" ] }, { "name": "Opentact", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "446" ] }, { "name": "Peerless Network", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "324" ] }, { "name": "Ton80 Communications", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "584" ] }, { "name": "Twilio International", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "895" ] }, { "name": "Vonage", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "243" ] }, { "name": "Wavenation", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "228" ] } ], "grid": "fmmvfffmmmmummfmfvfmmfmfvvfmffmmmfmvmvmvfmfvmvmvfmfmffmfmfmfmffffvmffmmmffvfvvvvvuvfmmvvffmffvmmffmvmmmmfvmmffmumvvfv-fvvmvmvumfffmfffffffmfvvvfffmvvmvmmfffv-fvfufff-fff--fvm-fff---f--fff--v---fff-fffv--------uvu-m--m-----vvfmf---u-uvm-m-f-----ffffm------fffff----fvff-u--v----f----------f------f--ffv----v-----uu----m--f-ffffvfmvf----fffv--------f--f-fm-ummfmff-f---f--ff---u-v--f-f-v-ffv-------f--mv--m--ff---u--f--vf-f----------m--m---mff-----------ff-------m--m-vv-------------fffffffff--fffv-fffuf-ff------u-uf--------------f--v--------ff----------f-mf-f-------v---m------v--------v-mf---------vf--m--u----u-m--muf--------f--u-u---ff----v---vff----m------------------------m-m-------vm----mv-f-vvm-u-------u---u-------mm---------fmu---m--f--v---u----fu-uu-----fvm----u---u-mu--------u-----f----v", "patterns": { "all": "^\\+1432[2-9]\\d{6}$", "fixed_line": "^\\+1432(?:2(?:0[04-6]|1[468]|2[13689]|33|4[028]|5[023579]|6[1-478]|7[235]|8[389]|9[1267])|3(?:0[489]|1[58]|2[7-9]|3[1-79]|4[3-5]|5[3-58]|6[02-46-8]|7[15-7]|8[14-6]|9[3-57-9])|4(?:2[46]|[38]8|4[4-7]|5[5-9]|6[467]|77|9[589])|5(?:2[02-57]|3[05-7]|47|5[028]|6[0137]|7[01]|8[0267]|96)|6(?:0[67]|1[48]|[24]0|39|5[23]|8[1-9]|9[2-47-9])|7(?:0[134]|14|[28]9|4[12]|5[368])|8(?:00|18|[29]7|3[67]|4[78])|9(?:[39]4|43|[56]5))\\d{4}$", "mobile": "^\\+1432(?:2(?:0[127-9]|1[02359]|2[027]|3[0-2468]|4[1469]|5[1468]|6[069]|7[01]|8[45]|9[0458])|3(?:0[0-367]|1[02]|2[136]|3[08]|4[69]|5[12]|73)|4(?:1[36]|25|3[46]|48)|5(?:17|28|5[3679]|99)|6(?:03|3[148]|6[14])|7(?:55|70|88)|8(?:[05]3|1[36]|78|8[09]|94)|9(?:01|2[34]|35|40|67|78))\\d{4}$", "voip": "^\\+1432(?:2(?:03|17|2[45]|3[579]|4[357]|65|7[46-9]|8[0267]|9[39])|3(?:05|1[3469]|2[024]|4[0-278]|5[069]|72|89)|4(?:[01]0|2[23]|33|65|72)|5(?:0[05]|2[69]|38|77|8[48])|6(?:00|17|6[67]|95)|7(?:32|[68]6|77|99)|8(?:4[26]|88|9[59])|9(?:00|[46]6|99))\\d{4}$" }, "sandbox": { "input": "+14325550123", "valid": true, "type": "Fixed line or mobile", "region": "US", "formats": { "e164": "+14325550123", "international": "+1 432-555-0123", "national": "(432) 555-0123", "rfc3966": "tel:+1-432-555-0123" }, "parts": { "countryCode": "+1", "destinationCode": "432", "destinationKind": "area code", "subscriber": "5550123" } }, "faq": [ { "question": "Where is area code 432?", "answer": "Area code 432 is in Texas, in the United States: all 377 of its exchanges on record are there. From abroad it is dialled +1 432, then the seven-digit number." }, { "question": "Is a 432 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 377 exchanges on record in 432, 93 (25%) were allocated as mobile, 175 (46%) as fixed line, 74 (20%) as VoIP and 35 (9%) 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 432?", "answer": "36 carriers hold exchanges in 432 on record; the most: AT&T (127), Verizon (33) and Onvoy (29). 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 432 phone number?", "answer": "In E.164 a 432 number matches ^\\+1432[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 (432) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP." } ], "neighbours": { "sameRegion": [ "us-210", "us-214", "us-254", "us-281", "us-325", "us-346", "us-361", "us-409", "us-430", "us-469", "us-512", "us-682", "us-713", "us-726", "us-737", "us-806", "us-817", "us-830", "us-832", "us-903", "us-915", "us-936", "us-940", "us-945", "us-956", "us-972", "us-979" ], "previous": "ca-431", "next": "us-434" }, "meta": { "dataAsOf": "2026-10-25", "dataPoints": 377, "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" } ] } }