{ "url": "https://phonelookup.dev/prefix/ca-581", "npa": "581", "slug": "ca-581", "iso": "CA", "country": "Canada", "regions": [ { "code": "QC", "name": "Quebec", "exchanges": 778 } ], "exchanges": 778, "known": 778, "byLineType": { "fixed_line": 526, "mobile": 144, "voip": 108 }, "carriers": [ { "name": "Telus", "exchanges": 182, "byLineType": { "fixed_line": 142, "mobile": 40 }, "ranges": [ "212–214", "216–220", "230–235", "246–254", "351–365", "368–369", "377–381", "538–554", "572–580", "620–639", "697–698", "712–720", "753", "813–848", "865", "867", "881–888", "913–919", "921", "923–924", "926", "945–949", "951–954", "956–957", "989–999" ] }, { "name": "Videotron", "exchanges": 153, "byLineType": { "fixed_line": 118, "mobile": 35 }, "ranges": [ "223–227", "229", "300", "312", "314–315", "320–329", "332", "370–371", "373–376", "419–421", "448–452", "454–458", "490–491", "558", "560–563", "600", "640–660", "664–665", "667–680", "740–749", "762–773", "775–776", "849–864", "908–910", "930–941", "943–944", "978–988" ] }, { "name": "Bell", "exchanges": 113, "byLineType": { "fixed_line": 73, "mobile": 32, "voip": 8 }, "ranges": [ "261–262", "305–309", "313", "337", "339", "343", "346", "348–350", "372", "397–399", "407", "431", "433–435", "437–438", "440", "442–447", "453", "459", "461–464", "466–467", "482–488", "492–497", "520–529", "603–609", "612–613", "661", "691–696", "730–739", "754–761", "782–786", "788–795", "894", "912" ] }, { "name": "Telecommunications Xittel", "exchanges": 111, "byLineType": { "fixed_line": 111 }, "ranges": [ "236–245", "255–260", "263–272", "274–299", "301–304", "330–331", "334–336", "338", "340–342", "344–345", "347", "382–396", "422–429", "582–599", "601–602" ] }, { "name": "Iristel", "exchanges": 92, "byLineType": { "mobile": 11, "voip": 81 }, "ranges": [ "200", "202–205", "221–222", "333", "402–403", "408–410", "432", "436", "439", "441", "465", "468–471", "474", "480–481", "489", "499", "500–509", "512–519", "685", "690", "700–710", "780", "796–799", "800–809", "812", "870–880", "890–893", "895", "900", "942" ] }, { "name": "Distributel", "exchanges": 29, "byLineType": { "fixed_line": 29 }, "ranges": [ "201", "316–319", "559", "564–571", "778–779", "925", "960–971" ] }, { "name": "ISP Telecom", "exchanges": 20, "byLineType": { "fixed_line": 20 }, "ranges": [ "206–207", "430", "472–473", "475–479", "498", "614–619", "687", "723", "975" ] }, { "name": "Fibernetics", "exchanges": 19, "byLineType": { "voip": 19 }, "ranges": [ "406", "662–663", "666", "681–684", "689", "781", "896–897", "901–907" ] }, { "name": "Rogers", "exchanges": 17, "byLineType": { "fixed_line": 3, "mobile": 14 }, "ranges": [ "400–401", "557", "686", "699", "787", "866", "868–869", "889", "898–899", "927–929", "955", "977" ] }, { "name": "Fido", "exchanges": 12, "byLineType": { "mobile": 12 }, "ranges": [ "688", "721–722", "724–729", "777", "920", "922" ] }, { "name": "Comwave Networks", "exchanges": 10, "byLineType": { "fixed_line": 10 }, "ranges": [ "530–536", "750–752" ] }, { "name": "IVIC Telecom", "exchanges": 10, "byLineType": { "fixed_line": 10 }, "ranges": [ "208–210", "228", "405", "413–417" ] }, { "name": "SSi Micro", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "972–974" ] }, { "name": "Sogetel", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "215", "510" ] }, { "name": "Telebec", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "412", "556" ] }, { "name": "Cooptel", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "774" ] }, { "name": "IXICA Communications", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "404" ] }, { "name": "Zayo", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "366" ] } ], "grid": "vfvvvvfffff-fffffffffvvfffffffmmmmmmffffffffffmffffffffffffffffffffffffff-fffffffffffffffffffffffffffffffmmmmm--fmmffffffffffffffffffvfffmfffffffffffmfffffffffffffffff-ffffmffffffffffffffffffffffffmmmmmmvffvfmmv-ffffff-ffffffffffffvvvvvvvvmvvvmmmmmfffffmfffffm-fffmvmmmmmmffvfffffvvfffffffmmffffffffvvvvvvvvvvvf-vvvvvvvvfffffmfffffffffff-fffffffffffffffff-fmffmfffffffffffmmmmmmmmm-ffffffffffffffffffffffffffff--ffffffffmmmmmffffffffffffffffffffffffffffffffffffmvvmmvmmmmmmmmmmmmffvvvvvmfmvvffffffffmvvvvvvvvvvv-fffffffffmmfmmmmmmfffffmmmmmffffmmmmmffffffffffffmfffffffffffffffmffmvfffffmffffffffvvvvvvvvvvvvvv--vffffffffffffffffffffffffffffffffffffmffffffffffffffffffffvmvvvvvvvvvmmmmmmmmmvvvvmvvvmmvvvvvvvvfmm-mfffffffmfmffffmmmffffffffffffvfffffff-ffffmff--ffffffffffffffff-mmmmfmmmmmmmmmmmmmmmmmm", "patterns": { "all": "^\\+1581[2-9]\\d{6}$", "fixed_line": "^\\+1581(?:2(?:0[16-9]|1[02-9]|2[03-9]|3[6-9]|4[0-57-9]|[5689]\\d|7[0-24-9])|3(?:0[0-4]|1[25-9]|[258]\\d|3[0-24-689]|4[0-8]|6[0-689]|7[013-9]|9[0-6])|4(?:0[457]|1[2-79]|2\\d|30|4[89]|5[0-24-8]|6[1-3]|7[235-9]|8[2-8]|9[1-8])|5(?:10|2[0-46-9]|3[0-689]|[49]\\d|5[0-4689]|6[1-9]|7[01]|8[2-9])|6(?:[03-5]\\d|1[2-9]|2[5-9]|60|79|8[07]|9[1-8])|7(?:1[2-9]|2[03]|3[0-4]|4[0-39]|5\\d|6[02-9]|7[0-689]|8[2-689]|9[0-5])|8(?:1[3-9]|[2356]\\d|4[0-8])|9(?:08|1[3-9]|2[13-6]|[36]\\d|4[013-9]|5[1-467]|7[0-5]|81))\\d{4}$", "mobile": "^\\+1581(?:2(?:3[0-5]|46)|3(?:0[5-9]|1[34]|37|49|72|9[7-9])|4(?:0[0-289]|[38]9|4[3-7]|5[39]|6[46-9]|7[01]|90)|5(?:25|57|[68]0|7[2-9])|6(?:2[0-4]|6[1457-9]|7[0-8]|8[68]|99)|7(?:2[124-9]|3[5-9]|4[4-8]|61|77|8[07])|8(?:49|71|8[1-9]|9[489])|9(?:09|1[02]|2[027-9]|55|7[7-9]|8[02-9]|9\\d))\\d{4}$", "voip": "^\\+1581(?:2(?:0[02-5]|2[12])|333|4(?:0[36]|10|3[1-8]|4[0-2]|65|74|8[01]|99)|5(?:0\\d|1[2-9])|6(?:6[236]|8[1-59]|90)|7(?:0\\d|10|81|9[6-9])|8(?:0\\d|12|7[02-9]|80|9[0-35-7])|9(?:0[0-7]|42))\\d{4}$" }, "sandbox": { "input": "+15815550123", "valid": true, "type": "Fixed line or mobile", "region": "CA", "formats": { "e164": "+15815550123", "international": "+1 581-555-0123", "national": "(581) 555-0123", "rfc3966": "tel:+1-581-555-0123" }, "parts": { "countryCode": "+1", "destinationCode": "581", "destinationKind": "area code", "subscriber": "5550123" } }, "faq": [ { "question": "Where is area code 581?", "answer": "Area code 581 is in Quebec, Canada: all 778 of its exchanges on record are there. From abroad it is dialled +1 581, then the seven-digit number." }, { "question": "Is a 581 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 778 exchanges on record in 581, 144 (19%) were allocated as mobile, 526 (68%) as fixed line and 108 (14%) as VoIP. A number can have been ported since, to another carrier and even to another line type." }, { "question": "Which carriers have numbers in area code 581?", "answer": "18 carriers hold exchanges in 581 on record; the most: Telus (182), Videotron (153) and Bell (113). 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 581 phone number?", "answer": "In E.164 a 581 number matches ^\\+1581[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 (581) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP." } ], "neighbours": { "sameRegion": [ "ca-263", "ca-354", "ca-367", "ca-418", "ca-438", "ca-450", "ca-468", "ca-514", "ca-579", "ca-819", "ca-873" ], "previous": "us-580", "next": "us-582" }, "meta": { "dataAsOf": "2026-10-25", "dataPoints": 778, "references": [ { "authority": "CNAC", "title": "Canadian Numbering Administrator", "url": "https://www.cnac.ca/" }, { "authority": "NANPA", "title": "North American Numbering Plan Administrator", "url": "https://nanpa.com/" }, { "authority": "ITU", "title": "National numbering plan: Canada", "url": "https://www.itu.int/oth/T0202000025/en" } ] } }