| Suburban Montréal Area Area Code 354 Telephone Exchanges / Prefixes |
|---|
| Major Cities/Towns: Valleyfield - Ste-Victoire - Longueuil - St-Lambert - Joliette |
|---|
| Prefix | Company | Status | Location |
|---|
| 210 | Cogeco Connexion Inc. | Assigned | Berthierville |
| 212 | Cogeco Connexion Inc. | Assigned | Joliette |
| 217 | Cogeco Connexion Inc. | Assigned | Granby |
| 218 | Cogeco Connexion Inc. | Assigned | Knowlton |
| 219 | Cogeco Connexion Inc. | Assigned | Lachute |
| 220 | Cogeco Connexion Inc. | Assigned | Rigaud |
| 221 | Cogeco Connexion Inc. | Assigned | St-Constant |
| 224 | Cogeco Connexion Inc. | Assigned | St-Denis |
| 225 | Cogeco Connexion Inc. | Assigned | Sorel |
| 226 | Cogeco Connexion Inc. | Assigned | Ste-Victoire |
| 235 | Iristel Inc. | Assigned | St-Vincent-de-Paul |
| 241 | Cogeco Connexion Inc. | Assigned | Ste-Rosalie |
| 242 | Cogeco Connexion Inc. | Assigned | Venise-en-Quebec |
| 245 | Cogeco Connexion Inc. | Assigned | Saint-Liboire |
| 202 | | Available | |
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| 211 | | For Special Use | |
| 311 | | For Special Use | |
| 411 | | For Special Use | |
| 511 | | For Special Use | |
| 555 | | For Special Use | |
| 611 | | For Special Use | |
| 711 | | For Special Use | |
| 811 | | For Special Use | |
| 911 | | For Special Use | |
| 950 | | For Special Use | |
| 976 | | For Special Use | |
| 988 | | For Special Use | |
| 200 | IXICA Communications Inc. | In Service | Boucherville |
| 201 | Iristel Inc. | In Service | Chateauguay |
| 204 | Cogeco Connexion Inc. | In Service | St-Thomas-dAquin |
| 205 | Cogeco Connexion Inc. | In Service | St-Hyacinthe |
| 206 | Cogeco Connexion Inc. | In Service | Valleyfield |
| 207 | Cogeco Connexion Inc. | In Service | St-Jean |
| 208 | Cogeco Connexion Inc. | In Service | Ste-Therese |
| 209 | Cogeco Connexion Inc. | In Service | Longueuil |
| 214 | Cogeco Connexion Inc. | In Service | St-Sauveur |
| 215 | Cogeco Connexion Inc. | In Service | St-Hippolyte |
| 216 | Cogeco Connexion Inc. | In Service | Rawdon |
| 222 | IXICA Communications Inc. | In Service | Chambly |
| 227 | ISP Telecom Inc. | In Service | Hemmingford |
| 234 | Iristel Inc. | In Service | Ste-Rose |
| 299 | IXICA Communications Inc. | In Service | Farnham |
| 300 | IXICA Communications Inc. | In Service | Huntingdon |
| 307 | Iristel Inc. | In Service | St-Lambert |
| 333 | IXICA Communications Inc. | In Service | Longueuil |
| 399 | IXICA Communications Inc. | In Service | Hemmingford |
| 400 | IXICA Communications Inc. | In Service | Ste-Marthe |
| 440 | IXICA Communications Inc. | In Service | Vaudreuil |
| 444 | IXICA Communications Inc. | In Service | Valleyfield |
| 477 | ISP Telecom Inc. | In Service | St-Pie-de-Guire |
| 499 | IXICA Communications Inc. | In Service | Henryville |
| 500 | IXICA Communications Inc. | In Service | Hudson |
| 533 | ISP Telecom Inc. | In Service | Mirabel-Ste-Scholastique |
| 544 | IXICA Communications Inc. | In Service | Bedford |
| 580 | TELUS Mobility | In Service | Valleyfield |
| 599 | IXICA Communications Inc. | In Service | Lacolle |
| 600 | IXICA Communications Inc. | In Service | Coteau-Landing |
| 666 | IXICA Communications Inc. | In Service | Coteau-du-Lac |
| 699 | IXICA Communications Inc. | In Service | Napierville |
| 700 | IXICA Communications Inc. | In Service | Rigaud |
| 777 | IXICA Communications Inc. | In Service | Riviere-Beaudette |
| 799 | IXICA Communications Inc. | In Service | St-Blaise |
| 800 | IXICA Communications Inc. | In Service | Laprairie |
| 878 | ISP Telecom Inc. | In Service | St-Zephirin |
| 880 | Rogers Communications Canada Inc. (Wireless) | In Service | Joliette |
| 888 | IXICA Communications Inc. | In Service | St-Lambert |
| 899 | IXICA Communications Inc. | In Service | Clarenceville |
| 900 | IXICA Communications Inc. | In Service | Ste-Justine-de-Newton |
| 999 | TELUS Mobility | In Service | St-Jerome |
| 310 | | Moratorium on Assignment | |
| 610 | | Moratorium on Assignment | |
| 810 | | Moratorium on Assignment | |
| 273 | | Not Available | |
| 354 | | Not Available | |
| 450 | | Not Available | |
| 487 | | Not Available | |
| 579 | | Not Available | |
| 819 | | Not Available | |
| 851 | | Not Available | |
| 871 | | Not Available | |
| 873 | | Not Available | |
| 958 | | Plant Test | |
| 959 | | Plant Test | |
| 945 | Cooptel | TBP Test Code | Ste-Victoire |
| 946 | 9164-3122 Quebec inc | TBP Test Code | Ste-Victoire |
89.5% of the exchanges in this area code are still available.