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-Jean | 69–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 Prefix | Replaced 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 |
| [new CO] | 63–MElrose 7 | 1955-02-06 |
| 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 [manual] | 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 Bur / last rev. 2015-10-24