{
  "url": "https://phonelookup.dev/prefix/us-959",
  "npa": "959",
  "slug": "us-959",
  "iso": "US",
  "country": "United States",
  "regions": [
    {
      "code": "CT",
      "name": "Connecticut",
      "exchanges": 177
    }
  ],
  "exchanges": 177,
  "known": 163,
  "byLineType": {
    "fixed_line": 19,
    "mobile": 43,
    "unknown": 14,
    "voip": 101
  },
  "carriers": [
    {
      "name": "Onvoy",
      "exchanges": 46,
      "byLineType": {
        "voip": 46
      },
      "ranges": [
        "203",
        "220",
        "224–225",
        "227–228",
        "232–233",
        "235",
        "243–245",
        "250–254",
        "256",
        "259",
        "264–265",
        "267",
        "271",
        "275",
        "281",
        "284",
        "300–301",
        "335",
        "400",
        "500",
        "566",
        "600",
        "666",
        "777",
        "800",
        "881",
        "888",
        "901",
        "949",
        "955",
        "991",
        "994",
        "997–999"
      ]
    },
    {
      "name": "Ton80 Communications",
      "exchanges": 27,
      "byLineType": {
        "voip": 27
      },
      "ranges": [
        "266",
        "283",
        "288",
        "426",
        "466",
        "516",
        "559",
        "588",
        "595",
        "625",
        "675",
        "716",
        "746",
        "759",
        "763",
        "788",
        "799",
        "832",
        "837",
        "866",
        "912",
        "916",
        "922",
        "933",
        "936",
        "966",
        "995"
      ]
    },
    {
      "name": "T-Mobile",
      "exchanges": 15,
      "byLineType": {
        "mobile": 15
      },
      "ranges": [
        "202",
        "208",
        "212",
        "217",
        "226",
        "229",
        "231",
        "237",
        "239",
        "241",
        "246",
        "258",
        "263",
        "929",
        "996"
      ]
    },
    {
      "name": "Verizon",
      "exchanges": 14,
      "byLineType": {
        "mobile": 14
      },
      "ranges": [
        "204",
        "215",
        "247",
        "255",
        "257",
        "261–262",
        "273",
        "276–277",
        "285–286",
        "956",
        "988"
      ]
    },
    {
      "name": "AT&T",
      "exchanges": 10,
      "byLineType": {
        "fixed_line": 7,
        "mobile": 3
      },
      "ranges": [
        "201",
        "230",
        "240",
        "242",
        "260",
        "274",
        "282",
        "299",
        "678",
        "876"
      ]
    },
    {
      "name": "Emergency Networks",
      "exchanges": 9,
      "byLineType": {
        "mobile": 9
      },
      "ranges": [
        "310",
        "410",
        "510",
        "610",
        "710",
        "810",
        "910",
        "951–952"
      ]
    },
    {
      "name": "Fractel",
      "exchanges": 8,
      "byLineType": {
        "voip": 8
      },
      "ranges": [
        "234",
        "345",
        "356",
        "465",
        "529",
        "758",
        "946",
        "977"
      ]
    },
    {
      "name": "Bandwidth.com",
      "exchanges": 5,
      "byLineType": {
        "voip": 5
      },
      "ranges": [
        "207",
        "216",
        "249",
        "269",
        "456"
      ]
    },
    {
      "name": "Barr Tell USA",
      "exchanges": 2,
      "byLineType": {
        "fixed_line": 2
      },
      "ranges": [
        "590",
        "885"
      ]
    },
    {
      "name": "Dish Wireless",
      "exchanges": 2,
      "byLineType": {
        "mobile": 2
      },
      "ranges": [
        "236",
        "278"
      ]
    },
    {
      "name": "Eon Telecom",
      "exchanges": 2,
      "byLineType": {
        "fixed_line": 2
      },
      "ranges": [
        "270",
        "272"
      ]
    },
    {
      "name": "IP Horizon",
      "exchanges": 2,
      "byLineType": {
        "voip": 2
      },
      "ranges": [
        "221",
        "268"
      ]
    },
    {
      "name": "Lumen",
      "exchanges": 2,
      "byLineType": {
        "fixed_line": 1,
        "voip": 1
      },
      "ranges": [
        "200",
        "214"
      ]
    },
    {
      "name": "Nuso",
      "exchanges": 2,
      "byLineType": {
        "fixed_line": 2
      },
      "ranges": [
        "238",
        "248"
      ]
    },
    {
      "name": "Paetec Itel",
      "exchanges": 2,
      "byLineType": {
        "fixed_line": 2
      },
      "ranges": [
        "218–219"
      ]
    },
    {
      "name": "Peerless Network",
      "exchanges": 2,
      "byLineType": {
        "voip": 2
      },
      "ranges": [
        "210",
        "444"
      ]
    },
    {
      "name": "TELNYX",
      "exchanges": 2,
      "byLineType": {
        "voip": 2
      },
      "ranges": [
        "222",
        "333"
      ]
    },
    {
      "name": "COMMIO LLC",
      "exchanges": 1,
      "byLineType": {
        "voip": 1
      },
      "ranges": [
        "867"
      ]
    },
    {
      "name": "Comcast",
      "exchanges": 1,
      "byLineType": {
        "voip": 1
      },
      "ranges": [
        "213"
      ]
    },
    {
      "name": "Exiant",
      "exchanges": 1,
      "byLineType": {
        "voip": 1
      },
      "ranges": [
        "205"
      ]
    },
    {
      "name": "HD Carrier",
      "exchanges": 1,
      "byLineType": {
        "voip": 1
      },
      "ranges": [
        "223"
      ]
    },
    {
      "name": "Optimum",
      "exchanges": 1,
      "byLineType": {
        "fixed_line": 1
      },
      "ranges": [
        "209"
      ]
    },
    {
      "name": "Skyetel",
      "exchanges": 1,
      "byLineType": {
        "voip": 1
      },
      "ranges": [
        "599"
      ]
    },
    {
      "name": "Terra Nova Telecom",
      "exchanges": 1,
      "byLineType": {
        "voip": 1
      },
      "ranges": [
        "900"
      ]
    },
    {
      "name": "Tpx Communications",
      "exchanges": 1,
      "byLineType": {
        "fixed_line": 1
      },
      "ranges": [
        "280"
      ]
    },
    {
      "name": "Twilio International",
      "exchanges": 1,
      "byLineType": {
        "voip": 1
      },
      "ranges": [
        "895"
      ]
    },
    {
      "name": "Vonage",
      "exchanges": 1,
      "byLineType": {
        "voip": 1
      },
      "ranges": [
        "206"
      ]
    },
    {
      "name": "Wavenation",
      "exchanges": 1,
      "byLineType": {
        "fixed_line": 1
      },
      "ranges": [
        "279"
      ]
    }
  ],
  "grid": "vfmvmvvvmfvumvfmvmffvvvvvvmvvmfmvvvvmmfmfmfvvvmmfvvvvvvmvmmvmmmmvvvvvvfvfmmvmmmffvmvvmm-v----------fvv--------mu---------------------v-v---------v----------v-------------------------------------------v---------mu--------------v-----------------v-----------v--------vv---------------------------------v---------mu----v------------v-------------------------u---v------v---------------------v-f----v---vv---------mu-------------v----------------------------------------v--------v--f---------------------u---------mu----v-----------------------------v-----------vv---v-------------v----------v----------vv---------mu--------------------v----v----------------------------vv--------f----v---f--v------v----vv--------muv---v-----v------m---v--v---------v--vumm--vm-uu------v---------uv----------m--v--vvmvvv",
  "patterns": {
    "all": "^\\+1959[2-9]\\d{6}$",
    "fixed_line": "^\\+1959(?:2(?:0[19]|1[489]|3[08]|4[028]|7[029]|80|99)|590|678|8(?:76|85))\\d{4}$",
    "mobile": "^\\+1959(?:2(?:0[248]|1[257]|2[69]|3[1679]|4[167]|5[578]|6[0-3]|7[346-8]|8[256])|310|410|510|610|710|810|9(?:10|29|5[126]|88|96))\\d{4}$",
    "voip": "^\\+1959(?:2(?:0[035-7]|1[036]|2[0-578]|3[2-5]|4[3-59]|5[0-469]|6[4-9]|7[15]|8[1348])|3(?:0[01]|3[35]|45|56)|4(?:00|[25]6|44|6[56])|5(?:00|[16]6|[25]9|88|9[59])|6(?:00|[27]5|66)|7(?:[14]6|5[89]|63|77|88|99)|8(?:00|3[27]|6[67]|8[18]|95)|9(?:0[01]|1[26]|22|3[36]|4[69]|55|66|77|9[1457-9]))\\d{4}$"
  },
  "sandbox": {
    "input": "+19595550123",
    "valid": true,
    "type": "Fixed line or mobile",
    "region": "US",
    "formats": {
      "e164": "+19595550123",
      "international": "+1 959-555-0123",
      "national": "(959) 555-0123",
      "rfc3966": "tel:+1-959-555-0123"
    },
    "parts": {
      "countryCode": "+1",
      "destinationCode": "959",
      "destinationKind": "area code",
      "subscriber": "5550123"
    }
  },
  "faq": [
    {
      "question": "Where is area code 959?",
      "answer": "Area code 959 is in Connecticut, in the United States: all 177 of its exchanges on record are there. From abroad it is dialled +1 959, then the seven-digit number."
    },
    {
      "question": "Is a 959 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 177 exchanges on record in 959, 43 (24%) were allocated as mobile, 19 (11%) as fixed line, 101 (57%) as VoIP and 14 (8%) 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 959?",
      "answer": "28 carriers hold exchanges in 959 on record; the most: Onvoy (46), Ton80 Communications (27) and T-Mobile (15). 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 959 phone number?",
      "answer": "In E.164 a 959 number matches ^\\+1959[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 (959) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP."
    }
  ],
  "neighbours": {
    "sameRegion": [
      "us-203",
      "us-475",
      "us-860"
    ],
    "previous": "us-956",
    "next": "us-970"
  },
  "meta": {
    "dataAsOf": "2026-10-25",
    "dataPoints": 177,
    "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"
      }
    ]
  }
}