{ "url": "https://phonelookup.dev/prefix/us-956", "npa": "956", "slug": "us-956", "iso": "US", "country": "United States", "regions": [ { "code": "TX", "name": "Texas", "exchanges": 753 } ], "exchanges": 753, "known": 735, "byLineType": { "fixed_line": 256, "mobile": 362, "unknown": 18, "voip": 117 }, "carriers": [ { "name": "AT&T", "exchanges": 293, "byLineType": { "fixed_line": 158, "mobile": 129, "voip": 6 }, "ranges": [ "200", "202", "204–205", "217", "224", "228–229", "233", "243–245", "250", "252", "254", "256–257", "261–262", "267", "272–274", "276", "279–283", "285–287", "289–292", "294–296", "307–309", "312–314", "316", "318–319", "322–323", "326–327", "330", "332–333", "336", "340", "350", "352", "356", "361–367", "369", "371–373", "379–381", "383–396", "399", "400–401", "407–408", "412", "414", "421–425", "427–430", "436", "440", "443–444", "461–462", "464", "468–471", "473", "475", "478–479", "482", "485", "489", "500", "502", "504–505", "508–509", "514–516", "519", "523", "526", "528–529", "538", "541–542", "544", "546–548", "550", "554", "559–560", "562–563", "565", "569–570", "572", "574", "577–581", "583–587", "589–590", "599", "600", "603–607", "610", "612", "614", "616–619", "625", "628", "630–632", "637", "640–641", "661", "664–665", "668", "673", "678", "682–683", "685–688", "692–693", "698", "701–703", "708", "712", "717–718", "721–730", "734", "740", "744", "748", "752–753", "755–757", "760–761", "763–765", "771–775", "781–784", "786–788", "790–791", "794–796", "802", "810", "813–814", "818", "820", "825", "831–832", "835", "838", "843", "848", "872–874", "882", "897", "904–905", "907–909", "926", "928", "932", "942–943", "948", "962", "971–972", "975", "982–984", "986", "989–990", "992", "994", "998" ] }, { "name": "T-Mobile", "exchanges": 170, "byLineType": { "mobile": 170 }, "ranges": [ "206–209", "212", "219–220", "222", "225–227", "232", "234–235", "237", "239–241", "247", "251", "258", "263", "265–266", "270", "284", "293", "299", "301", "315", "317", "321", "324–325", "328", "331", "334–335", "337", "341", "343", "345", "351", "353–355", "360", "375", "382", "402", "405", "413", "416", "432–434", "437–439", "442", "445", "451", "453–460", "463", "466", "472", "480", "484", "490–491", "493–495", "497–499", "501", "503", "510", "517–518", "520–522", "524", "530", "533–537", "543", "558", "571", "575–576", "592", "598", "608", "620", "624", "626", "629", "639", "645", "648–652", "655–656", "658–659", "667", "672", "680", "684", "706", "714–715", "720", "731", "735", "739", "742", "746", "750–751", "759", "769", "778", "780", "789", "792–793", "801", "812", "816", "821", "824", "827–829", "834", "839", "841", "844", "846", "862", "867", "876", "878", "884", "890", "898", "923", "949", "954", "960–961", "966", "970" ] }, { "name": "Verizon", "exchanges": 49, "byLineType": { "fixed_line": 5, "mobile": 44 }, "ranges": [ "203", "221", "236", "238", "249", "264", "278", "298", "310", "342", "346", "357–359", "374", "376", "403", "410", "450", "483", "512", "525", "532", "540", "551–552", "556", "561", "564", "566", "593", "595–596", "609", "635", "638", "662", "679", "713", "754", "770", "798", "805", "826", "893", "929", "935", "951", "985" ] }, { "name": "Onvoy", "exchanges": 43, "byLineType": { "voip": 43 }, "ranges": [ "253", "275", "300", "302–306", "368", "420", "426", "431", "446", "449", "474", "476–477", "613", "634", "663", "697", "709", "719", "738", "741", "745", "749", "815", "817", "819", "857", "865", "869", "906", "917", "927", "934", "953", "957", "963", "974", "981", "995" ] }, { "name": "Spectrum", "exchanges": 19, "byLineType": { "fixed_line": 19 }, "ranges": [ "223", "230", "277", "378", "441", "496", "545", "568", "591", "601–602", "615", "621", "627", "800", "803", "854", "903", "997" ] }, { "name": "Bandwidth.com", "exchanges": 18, "byLineType": { "voip": 18 }, "ranges": [ "269", "320", "339", "370", "404", "406", "415", "435", "513", "527", "597", "646", "704–705", "707", "807", "823", "996" ] }, { "name": "Frontier", "exchanges": 17, "byLineType": { "fixed_line": 17 }, "ranges": [ "347", "398", "447", "487–488", "573", "636", "647", "689–690", "716", "797", "847", "849", "968–969", "973" ] }, { "name": "Lumen", "exchanges": 16, "byLineType": { "fixed_line": 9, "voip": 7 }, "ranges": [ "242", "246", "255", "271", "329", "377", "397", "465", "467", "549", "557", "582", "622", "653", "660", "671" ] }, { "name": "Fractel", "exchanges": 14, "byLineType": { "voip": 14 }, "ranges": [ "644", "677", "733", "822", "833", "855", "866", "877", "899", "922", "933", "946", "955", "977" ] }, { "name": "Foremost Telecommunications", "exchanges": 12, "byLineType": { "fixed_line": 12 }, "ranges": [ "348", "507", "588", "666", "732", "747", "766", "777", "887–888", "900", "999" ] }, { "name": "Smartcom", "exchanges": 9, "byLineType": { "fixed_line": 9 }, "ranges": [ "213–214", "216", "218", "259–260", "567", "657", "681" ] }, { "name": "Valley Telephone Cooperative", "exchanges": 8, "byLineType": { "fixed_line": 8 }, "ranges": [ "248", "481", "486", "642", "743", "842", "845", "944" ] }, { "name": "Emergency Networks", "exchanges": 7, "byLineType": { "mobile": 7 }, "ranges": [ "553", "696", "710", "856", "952", "964–965" ] }, { "name": "USA Mobility", "exchanges": 6, "byLineType": { "mobile": 6 }, "ranges": [ "268", "288", "344", "623", "767–768" ] }, { "name": "Dish Wireless", "exchanges": 5, "byLineType": { "mobile": 5 }, "ranges": [ "409", "670", "674–675", "736" ] }, { "name": "Ton80 Communications", "exchanges": 5, "byLineType": { "voip": 5 }, "ranges": [ "737", "779", "837", "864", "937" ] }, { "name": "Alenco Communications", "exchanges": 4, "byLineType": { "fixed_line": 4 }, "ranges": [ "417–419", "799" ] }, { "name": "COMMIO LLC", "exchanges": 4, "byLineType": { "voip": 4 }, "ranges": [ "201", "694", "762", "804" ] }, { "name": "VTX Telecom", "exchanges": 4, "byLineType": { "fixed_line": 4 }, "ranges": [ "297", "349", "633", "699" ] }, { "name": "Vonage", "exchanges": 4, "byLineType": { "voip": 4 }, "ranges": [ "338", "448", "452", "539" ] }, { "name": "IP Horizon", "exchanges": 3, "byLineType": { "voip": 3 }, "ranges": [ "594", "991", "993" ] }, { "name": "Brightlink Communications", "exchanges": 2, "byLineType": { "voip": 2 }, "ranges": [ "643", "910" ] }, { "name": "Nuso", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "691", "987" ] }, { "name": "Peerless Network", "exchanges": 2, "byLineType": { "voip": 2 }, "ranges": [ "669", "758" ] }, { "name": "TELNYX", "exchanges": 2, "byLineType": { "voip": 2 }, "ranges": [ "506", "695" ] }, { "name": "8x8", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "881" ] }, { "name": "Ahoi", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "210" ] }, { "name": "Astound Broadband", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "231" ] }, { "name": "Border to Border Communications", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "936" ] }, { "name": "CSC Wireless LLC", "exchanges": 1, "byLineType": { "mobile": 1 }, "ranges": [ "654" ] }, { "name": "Callworks Corporation", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "676" ] }, { "name": "Comcast", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "840" ] }, { "name": "HD Carrier", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "809" ] }, { "name": "Leap Telecom", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "785" ] }, { "name": "Paetec Itel", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "531" ] }, { "name": "Skyetel", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "880" ] }, { "name": "Terra Nova Telecom", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "808" ] }, { "name": "Tpx Communications", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "853" ] }, { "name": "TransTelco", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "215" ] }, { "name": "Twilio International", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "895" ] }, { "name": "Wavenation", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "492" ] }, { "name": "Westel", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "776" ] } ], "grid": "mvmmmfmmmmfumffffffmmmmfmmmmfmffmfmmmmmmmmffmmfmfmmmmvffmmmffmfmfmmmmvmfmfvvfffmmmmfmmmfmfmffmfmffmmvmvvvvvmmmmummmmfmffvmmfmmfmmfmmmmmmmmvvmmmmmmmffffmmmmmfmmfmffmfffmvmvmvmmmmffmffmffffffffmffmvvvffmmmfvmvmmmmufmmvmfffvfmfffvffffvmmmvmmmmffmmfmvfvvmmvmmmmmmmmfvmffmffmfmmfvmvvmmmfmmmffffmmmfmmmfmmmmmmmfmvfmmmumvfmmmmfmmmfmmmvmmmfmmmmmmmvmffmfffffvfmmmfumvmmmmmmmfmffmmmmffmmfffffvfffmfffmfmmvmmvmmmffmfmmmmffumvffmmfmmffmmfmfvmffffvmffmmmmfvvmvfmmmmmvmmmfmmvfmvfffmfvmvmmmmvvmmmfffmmffffffmfvvmvffumfmvvmvmvmufmmmfffvmffffffffffmfvfmmvvmmvmfmvmffvmmffmfmmvmffvmfffmmmmmfmmmffmvmffffffffmffmmffffmffmmfvmuvvvmummmvmvmvmmvvmfmmmmuffvmm-vfmvmffmfmfff---ffvmv----m-vvvm-v--fmm-mvm-vvf-m--ff-m--m-v-mmvf--fmmvmmmvu-----v----vm--fvfm--mvvmfv----mff-v-fmummvmvuvuummmvmmm-ffmfffvmuv---vfffmffummvfvfvvfmf", "patterns": { "all": "^\\+1956[2-9]\\d{6}$", "fixed_line": "^\\+1956(?:2(?:05|1[03-8]|2[38]|3[013]|4[2368]|5[459]|6[024]|7[136-8]|8[379]|9[12467])|3(?:1[689]|2[369]|4[7-9]|5[069]|6[124-6]|7[78]|8[013-9]|9[02389])|4(?:03|1[27-9]|2[13-57-9]|30|4[0147]|6[14578]|7[03]|8[15-8]|9[26])|5(?:0[47]|1[49]|23|[39]1|4[124-8]|5[04]|6[578]|7[347-9]|8[013-57-9])|6(?:0[1249]|1[0458]|2[1257]|3[0-367]|4[27]|57|6[14-68]|8[1-36-9]|9[01389])|7(?:02|1[26-8]|2[1-9]|3[024]|4[378]|5[235]|6[014-6]|7[267]|8[1-8]|9[014-79])|8(?:0[03]|25|3[128]|4[2357-9]|5[34]|72|8[278])|9(?:0[03]|2[68]|36|4[348]|6[89]|7[1-3]|8[2-467]|9[2479]))\\d{4}$", "mobile": "^\\+1956(?:2(?:0[02-46-9]|1[29]|2[0-24-79]|3[24-9]|4[014579]|5[0-26-8]|6[135-8]|7[029]|8[0-24-68]|9[03589])|3(?:0[17-9]|1[02-57]|2[124578]|3[0-7]|4[0-6]|5[1-578]|6[0379]|7[13-69]|82|9[14])|4(?:0[0-257-9]|1[0346]|22|3[2-46-9]|4[235]|5[013-9]|6[0369]|7[12589]|8[02-49]|9[013-57-9])|5(?:0[0-3589]|1[025-8]|2[0-24-689]|3[02-8]|4[03]|5[1-3689]|6[0-469]|7[0-256]|86|9[0235689])|6(?:0[035-8]|1[2679]|2[03469]|3[589]|4[01589]|5[0-24-689]|6[27]|7[02-589]|8[045]|9[26])|7(?:0[1368]|1[03-5]|20|3[1569]|4[0246]|5[014679]|6[37-9]|7[013-58]|8[09]|9[238])|8(?:0[125]|1[02-468]|2[0146-9]|3[459]|4[146]|56|6[27]|7[3468]|84|9[0378])|9(?:0[457-9]|2[39]|3[25]|4[29]|5[124]|6[0-24-6]|7[05]|8[59]|9[08]))\\d{4}$", "voip": "^\\+1956(?:2(?:01|53|69|7[45])|3(?:0[02-6]|20|3[89]|68|7[02]|9[5-7])|4(?:0[46]|15|2[06]|3[15]|4[689]|[56]2|7[467])|5(?:06|13|[25]7|[34]9|82|9[47])|6(?:[15]3|28|34|4[346]|6[039]|7[167]|9[457])|7(?:0[4579]|[17]9|3[378]|4[159]|58|62)|8(?:0[47-9]|1[579]|2[23]|3[37]|40|5[57]|6[4-69]|77|8[01]|9[59])|9(?:[04]6|1[07]|2[27]|3[347]|5[357]|63|7[47]|81|9[1356]))\\d{4}$" }, "sandbox": { "input": "+19565550123", "valid": true, "type": "Fixed line or mobile", "region": "US", "formats": { "e164": "+19565550123", "international": "+1 956-555-0123", "national": "(956) 555-0123", "rfc3966": "tel:+1-956-555-0123" }, "parts": { "countryCode": "+1", "destinationCode": "956", "destinationKind": "area code", "subscriber": "5550123" } }, "faq": [ { "question": "Where is area code 956?", "answer": "Area code 956 is in Texas, in the United States: all 753 of its exchanges on record are there. From abroad it is dialled +1 956, then the seven-digit number." }, { "question": "Is a 956 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 753 exchanges on record in 956, 362 (48%) were allocated as mobile, 256 (34%) as fixed line, 117 (16%) as VoIP and 18 (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 956?", "answer": "42 carriers hold exchanges in 956 on record; the most: AT&T (293), T-Mobile (170) and Verizon (49). 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 956 phone number?", "answer": "In E.164 a 956 number matches ^\\+1956[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 (956) 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-432", "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-972", "us-979" ], "previous": "us-954", "next": "us-959" }, "meta": { "dataAsOf": "2026-10-25", "dataPoints": 753, "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" } ] } }