Montréal telephone exchange geography

Montreal central offices (historical and current) mapped
See the Local calling guide to find which switch a prefix (NPA-NXX) belongs to.

CLLI (Common Language location identifier) codes identify elements of the North American telephone network. In Montréal (NPA 514), Bell Canada uses the following codes for central offices (exchanges) where switches are located. The area served by a central office is a wire centre. Rate centres are the basis of local calling areas and long distance charges.

The 2 Letter 5 Digit column shows current assignments of the 2L-5D named prefixes that have existed since the 1950s. Some wire centre boundaries and prefixes have changed over time. Most central offices now use additional prefixes.

CO CLLI Rate Centre Wire Centre 2 Letter 5 Digit Prefix
MTRLPQ02 Montréal Belmont 86–UNiversity 1-4-6-8, 87–TRiangle
MTRLPQ03 Montréal Cadillac 25–CLairval
MTRLPQ05 Montréal Pointe-aux-Trembles 64–MIssion 0-2-4-5
MTRLPQ07 Montréal Papineau 52–LAfontaine
MTRLPQ08 Roxboro 68–MUrray 3-4-5
MTRLPQ19 Montréal Côte-des-Neiges 73–REgent
MTRLPQ23 Montréal Dudemaine 33–FEderal
MTRLPQ24 Montréal Decelles 74–RIverside [merged with Dudemaine in the 1990s]
MTRLPQ28 Montréal St-Dominique 27–CRescent
MTRLPQ29 Montréal Montée St-Michel 72–RAymond
MTRLPQ30 Montréal Montréal-Nord 32–DAniel
MTRLPQ31 Montréal Sauvé 38–DUpont
MTRLPQ34 Montréal Rivière-des-Prairies 64–MIssion 3-8 (was 66–MOnument 5)
MTRLPQ42 Montréal Ontario 84–VIctor, 28–AVenue
MTRLPQ43 Montréal Atwater 93–WEllington
MTRLPQ44 Lachine 14e Avenue 63–MElrose 4-7-9 (was 63–NElson 5)
MTRLPQ45 Lachine Dorval 63–MElrose 1-3-6
MTRLPQ46 Montréal LaSalle 36–DOminic
MTRLPQ47 Montréal Monkland 48–HUnter
MTRLPQ48 Montréal Verdun 76–POntiac
MTRLPQ50 Pointe-Claire Chemin St-Jean69–OXford 3-4-5-7 (was 68–OVerbrook)
MTRLPQ51 Montréal Anjou 35
MTRLPQ53 Pointe-Claire Ste-Anne-de-Bellevue 45–GLendale 7
MTRLPQ54 Ste-Geneviève 62–NAtional 0-4-6
IPRTPQAA Île-Perrot 45–GLendale 3
 
The following nearby exchanges were switched to NPA 450 in January 1999.
 
VLGDPQ06 Ville Le Gardeur 65–OLympia 4-7
BHVLPQ10 Boucherville 65–OLympia 5
CMBYPQ11 Chambly 65–OLympia 8
CTGYPQ13 Châteauguay 69–OXford 1-2-8-9 (was 68–OVerbrook)
LPRRPQ14 La Prairie, St-Philippe 65–OLympia 9 (was also 64–MIssion 3)
LNGLPQ15 Longueuil 67–ORleans 0-4-7-9
LEPHPQ16 L'Épiphanie (was 69–OXford)
SCONPQ18 St-Constant 63–NEptune 2-5-8
SLAMPQ20 St-Lambert 67–ORchard 1-2
SHBTPQ21 St-Lambert St-Hubert 67–ORchard 6-8
BLOLPQ22 Beloeil (was 36–FOrest)
VRNSPQ25 Varennes 65–OLympia 2
VRCHPQ26 Verchères 58–LUcerne 3
MTRLPQ27 Chomedey 68–MUrray 0-1-2-6-7-8
MTRLPQ33 Pont-Viau 66–MOntcalm 2-3-7-8-9
STESPQ35 St-Eustache, Oka 47–GRanit 2-3-5-9
MCCHPQ36 Mascouche 47–GRanit 4-7
MTRLPQ37 Ste-Rose 62–NAtional 2-5-8
STTRPQ38 Ste-Thérèse 43–GEneral 0-3-4-5-7 (was 82–TAlbot 3)
MTRLPQ39 St-Vincent-de-Paul 66–NOrmandie 1-4-5
BHNSPQ40 Beauharnois (was 26–COrvette)
VDRLPQ55 Vaudreuil (was 23–BElmont)
SBCYPQ62 St-Bruno 65–OLympia 3
TRRBPQ65 Terrebonne 47–GRanit 1 (was 66–NOrmandie 6)
LVALPQBM Laval-Est 66–NOrmandie 6
LVALPQCJ Laval-Ouest 62–NAtional 7
LAVOPQPR Laval-Ouest Ste-Dorothée 68–MUrray 9


A discussion of CLLI usage can be found in the TELECOM Digest archives.

The Canadian Numbering Administrator has some useful current information, especially in the documents concerning the NPA 514/438 overlay implemented on 2006-11-11.


From 1925 to 1958, 2 Letter 4 Digit (2L-4D) dialing was used in Montréal. Here are the old prefixes for the Montréal exchange.

2 Letter 4 Digit PrefixReplaced by Date
86–UNiversity 86–UNiversity 6 1951-05-06
[new] 48–HUnter 8 1952-06
[new] 73–REgent 3 1952-06
[new] 74–RIverside 4 1952
[new] 76–POntiac 6 1952
[new CO] 72–RAymond 2 1953-04
38–DUpont 38–DUpont 8 1953-07-26
39–EXdale 73–REgent 7 1954-02-21
28–ATlantic 73–REgent 8 1954-02-21
52–LAncaster 28–AVenue 8 1954-07-25
26–AMherst 52–LAfontaine 1 1955-07-31
24–CHerrier 52–LAfontaine 2 1955-07-31
37–FRontenac 52–LAfontaine 3 1955-07-31
32–FAlkirk 52–LAfontaine 4 1955-07-31
46–HOchelaga 52–LAfontaine 5 1955-07-31
44–GIffard 52–LAfontaine 6 1955-07-31
29–BYwater 74–RIverside 7 1955-07-31
25–CLairval 25–CLairval 5 1956-08-05
88–TUrcotte 25–CLairval 9 1956-08-05
36–DOllard 27–CRescent 1 1956-08-05
22–CAlumet 27–CRescent 2 1956-08-05
47–GRavelle 27–CRescent 4 1956-08-05
84–VIctoria 27–CRescent 6 1956-08-05
27–CRescent 27–CRescent 7 1956-08-05
82–TAlon 27–CRescent 9 1956-08-05
92–WAlnut 48–HUnter 1 1957-03
83–VEndome 38–DUpont 7 1957-08-04
43–HEmlock 76–POntiac 7 1957-08-04
87–TRenmore 76–POntiac 8 1957-08-04
96–YOrk 76–POntiac 9 1957-08-04
42–HArbour 84–VIctor 5 1957-08-04
62–MArquette 84–VIctor 9 1957-08-04
94–WIlbank 93–WEllington 2 1957-08-04
93–WEllington 93–WEllington 3 1957-08-04
34–FItzroy 93–WEllington 5 1957-08-04
45–GLenview 93–WEllington 7 1957-08-04
75–PLateau 84–VIctor 2 1958-09-21
23–BElair 84–VIctor 4 1958-09-21
33–DExter 48–HUnter 4 1958-09-21
35–ELwood 48–HUnter 6 1958-09-21
[new CO] 36–DOminic 1958-07
[new CO] 32–DAniel 1958-10
[new CO] 33–FEderal 1959-07
[new] 87–TRiangle 1959

Named prefixes were phased out in favor of All Number Calling (ANC) between 1961 and 1966.

Source: The Telephone EXchange Name Project
and old Bell Canada directories at the Bibliothèque nationale du Québec


See also Toronto telephone exchange geography.

2004-04-18 Justin Burlast rev. 2014-04-03