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579

Area code 579

Quebec, Canada

National (579) 555-0123, E.164 +15795550123

How the 645 central office codes (exchanges) of area code 579 were allocated, from the North American Numbering Plan's records: to which carrier, as which line type. A 579 number is mobile, fixed line or VoIP according to its exchange, the three digits after the area code; the allocation is the original one (below).

At a glance

Country code
+1
Province
QC
Exchanges on record
645
Carriers on record
16
Exchanges of 579 by the line type they were allocated as
  • Mobile 45 (7%)
  • Fixed line 431 (67%)
  • VoIP 169 (26%)
  • 645 exchanges on record

Most exchanges: Telus 137, Fibernetics 103, Videotron 72.

Check a number

Valid fixed line or mobile number in Canada.

+1
country code
579
area code
5550123
subscriber number
CountryCanada numbering plan
Line typeFixed line or mobile
Carrier the block was allocated toNo carrier on record for this prefix
E.164+15795550123
International+1 579-555-0123
National(579) 555-0123
RFC 3966tel:+1-579-555-0123

Source: Canadian Numbering Administrator (CNAC); North American Numbering Plan Administrator (NANPA); National numbering plan: Canada (ITU)

The example is 579-555-0123: 555-0100 to 555-0199 are set aside for fictional use in every area code.

The exchange map

Every exchange of 579, by the line type it was allocated as

One cell per exchange: blocks 579 2xx to 579 9xx; in each block the row is the tens digit, the column the units digit.

579 2xx579 3xx579 4xx579 5xx579 6xx579 7xx579 8xx579 9xx
  • Mobile 45
  • Fixed line 431
  • VoIP 169
  • Not on record 155

Formats and patterns

E.164+15795550123
International+1 579-555-0123
National(579) 555-0123
RFC 3966 (tel: URI)tel:+1-579-555-0123

Any 579 number, in E.164

^\+1579[2-9]\d{6}$

+1, the area code, a central office code that does not start with 0 or 1, then four digits.

Mobile exchanges (45 on record)

^\+1579(?:2(?:55|76)|3(?:37|48|53|6[1689]|7[1-3])|4(?:2[013]|8[3489]|9[0-2])|5(?:25|59|9[3-5])|6(?:55|8[48])|7(?:30|6[4-6])|8(?:6[02-5]|88)|9(?:5[57]|6[01]|85))\d{4}$

Fixed line exchanges (431 on record)

^\+1579(?:2(?:[02-4689]\d|1[02-9]|5[0-46-9]|7[0-24578])|3(?:0[13-9]|1[2-9]|2\d|3[0-24-689]|4[0-7]|5[5-9]|6[02-57]|7[04-6]|8[3-9]|9[013-9])|4(?:0[2-9]|10|2[24-9]|[347]\d|5[1-4]|[69]9|8[0-2])|5(?:08|1[02]|2[0689]|3[0-8]|4\d|5[1-46-8]|6[04-7]|7[457]|8[0-3]|9[09])|6(?:0[1-9]|1[2-9]|2[01]|3\d|4[0-5]|6[0-46]|99)|7(?:0[179]|10|2[0-3]|3[347-9]|4[014]|5[057]|6[89]|7[0-57]|8[0-36-9]|9[79])|8(?:08|1[78]|2[0-68]|[34]\d|5[02-689]|[68]9|7[26-9]|9[0-2])|9(?:0[1-9]|1[02359]|2\d|3[049]|4[09]|6[29]|89))\d{4}$

VoIP exchanges (169 on record)

^\+1579(?:279|3(?:0[02]|33|49|[58][0-2]|7[7-9]|92)|4(?:0[01]|1[2-9]|5[5-9]|6[0-8]|8[56]|9[3-8])|5(?:0[0-79]|1[3-9]|2[1-47]|39|50|6[1-389]|7[0-368]|8[69])|6(?:00|2[23]|7[4-9]|8[0-39])|7(?:0[02]|1[5-7]|59|7[89]|9[0-68])|8(?:0[0-79]|2[79]|7[45]|8[0-7]|9[3-79])|9(?:00|[14]4|3[23]|65|7[2457-9]|8[0-246-8]|9\d))\d{4}$

The exchange patterns follow the original allocations; a number ported since keeps its digits but not necessarily its carrier or its line type.

Carriers and their exchanges

Every carrier holding exchanges in 579, with the exchanges allocated to it (the three digits after the area code).

CarrierExchangesMobileFixed lineVoIPExchanges held
Telus137151220200–210, 212–254, 256, 265, 281–287, 289–299, 301, 367, 376, 483–484, 488–492, 512, 549, 552–554, 557–558, 575, 581–583, 593–595, 733–734, 764–766, 820–826, 830–837, 839–847, 849–850, 852–856, 888, 962, 985
Fibernetics10300103279, 333, 349–352, 377–382, 392, 412–419, 455–468, 493–498, 504–507, 513–519, 521–524, 527, 561–563, 570–573, 576, 578, 622–623, 674–683, 715–717, 779, 874–875, 880–887, 893–897, 932–933, 979–982
Videotron7215570280, 357–366, 368–375, 394, 420–423, 430–436, 438, 440–441, 528–538, 559, 630–645, 720–723, 730, 930, 934, 957, 960–961
Iristel660066300, 302, 400–401, 485–486, 500–503, 509, 539, 550, 568–569, 586, 589, 600, 689, 700, 702, 759, 778, 790–796, 798, 800–807, 809, 827, 829, 899, 900, 914, 944, 965, 972, 974–975, 977–978, 984, 986–988, 990–999
Distributel560560303–309, 312–329, 338–342, 344–347, 402–410, 901–910, 912–913, 915
ISP Telecom500500258–264, 330–332, 334, 336, 343, 383–391, 395–397, 469–481, 551, 565–567, 701, 768–769, 817, 889–892
Comwave Networks440440266–272, 277–278, 288, 737–741, 786–789, 797, 799, 808, 818, 828, 838, 858–859, 869, 919–929, 939–940, 949, 969, 989
Cooptel370370335, 355, 393, 398, 424–429, 437, 439, 442–449, 451–454, 482, 508, 540–548, 556, 574
Bell287210255, 257, 276, 337, 348, 353, 525–526, 601–609, 612–621, 655
IXICA Communications260260399, 510, 520, 560, 577, 580, 590, 599, 699, 707, 709–710, 744, 750, 755, 770–775, 777, 780–783
Rogers8350684, 688, 872, 876–879, 955
InnSysVoice6060660–664, 666
Fido5500860, 862–865
Telebec3030499, 757, 848
9164-3122 Quebec2020356, 564
Zayo2020274–275

Questions developers ask

Where is area code 579?
Area code 579 is in Quebec, Canada: all 645 of its exchanges on record are there. From abroad it is dialled +1 579, then the seven-digit number.
Is a 579 number mobile or landline?
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 645 exchanges on record in 579, 45 (7%) were allocated as mobile, 431 (67%) as fixed line and 169 (26%) as VoIP. A number can have been ported since, to another carrier and even to another line type.
Which carriers have numbers in area code 579?
16 carriers hold exchanges in 579 on record; the most: Telus (137), Fibernetics (103) and Videotron (72). 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.
How do I validate a 579 phone number?
In E.164 a 579 number matches ^\+1579[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 (579) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP.