Area codes 418, 581, and 367 are telephone area codes in the North American Numbering Plan (NANP) for the eastern portion of the Canadian province of Quebec. Area code 418 was originally assigned to the numbering plan area, but all three area codes now form an overlay plan for this territory. Cities in the numbering plan area include Quebec City, Saguenay, Lévis, Rimouski, Saint-Georges, Alma, Thetford Mines, Sept-Îles, Baie-Comeau and Rivière-du-Loup. Also served are the Gaspé Peninsula, Côte-Nord, southeastern Mauricie, and the tiny hamlet of Estcourt Station, in the U.S. state of Maine.
History Ontario and Quebec were the only provinces that received assignments of multiple area codes by the American Telephone and Telegraph Company (AT&T) when the original North American area codes were created in 1947.
The eastern part of Quebec received area code 418, while area code 514 was assigned for the western part. Nominally, northwestern Quebec, one of the few areas of North America without telephone service, was reassigned from area code 514 to area code 418 in 1957. From the 1950s to the 1970s, area code 418 was also the area code for the eastern Northwest Territories. However, in the 1970s, as direct distance dialling was introduced to the far northern and western portions of 418, those areas were reassigned to area code 819.
Despite Quebec City's rapid growth, by the turn of the millennium, area code 418 was the last of Quebec and Ontario's original four area codes not to have been split. By 2006, however, area code 418 was on the brink of exhaustion because of Canada's system of number allocation. Every competitive local exchange carrier is allocated blocks of 10,000 numbers, which correspond to a single three-digit prefix, for every rate centre in which it plans to offer service, even for small hamlets. Once a number is assigned to a carrier and rate centre, it cannot be moved elsewhere even if a rate centre has more than enough numbers to serve it. That resulted in thousands of wasted numbers, a problem that was worsened by the proliferation of cellphones and pagers, especially in the larger cities. Additionally, a number of "megacities" created in 2002 are split between multiple rate centres, which have never been amalgamated. For example, Saguenay is split between four rate centres.
In 2007, the CRTC assigned area code 581 as an overlay for 418. The implementation of area code 581 began on June 21, 2008 with the start of a permissive dialling period during which local calls could be made with both seven and ten digits. Ten-digit dialling became mandatory in eastern Quebec on September 6, 2008.
By 2016, area codes 418 and 581 exceeded once again the threshold for relief planning because of further proliferation of mobile services. In 2017, the CRTC assigned area code 367 as a second overlay code for eastern Quebec. It entered service in 2018. With that action, a total of 23.4 million telephone numbers had been allocated to only 1.8 million people.
The major incumbent local exchange carriers in the area are Bell Canada, Bell Aliant, Telus (formerly Quebec-Telephone) and Vidéotron.
After an August 2027 exhaust date for central office codes was determined for the 367/418/581 overlay complex, a relief planning committee was initiated in January 2025, which produced a draft plan with a target relief date of February 27, 2027, and reserved area code 273 as the fourth area code for the region in May 2025, The draft plan was approved by the CRTC on October 10, 2025 and area code 273 was assigned by the North American Numbering Plan Administrator (NANPA).
Places and central office codes Adstock: (418) 422 (581) 634 Aguanish: (418) 533 (581) 299 Albanel: (418) 279 501 (581) 601 Albertville: see Causapscal Alma: (418) 212 301 319 321 347 442 450 480 481 482 487 662 668 669 719 720 758 769 (581) 200 216 230 265 431 533 598 728 828 Amqui: (418) 330 629 631 713 (581) 335 Armagh: (418) 466 (581) 328 Auclair: see Témiscouata-sur-le-Lac Baie-Comeau: (418) 280 282 293 294 295 296 297 298 378 445 589 921 (581) 381 642 726 823 829 929 987 Baie-des-Sables: (418) 772 (581) 396 Baie-Johan-Beetz: (418) 539 (581) 298 Baie-Saint-Paul: (418) 200 219 240 435 436 760 (581) 237 Baie-Sainte-Catherine: (418) 237 (581) 236 Baie-Trinité: (418) 920 939 Batiscan: see Sainte-Geneviève-de-Batiscan Beauceville: (418) 217 774 (581) 420 813 Beaulac-Garthby: (418) 458 (581) 228 330 835 Beaumont: see Lévis Beaupré: (418) 702 746 827 Bégin: see Saint-Ambroise Berthier-sur-Mer: see Saint-François-de-la-Rivière-du-Sud Biencourt: (418) 499 (581) 373 Blanc-Sablon: (418) 461 (581) 297 Boischatel: (418) 406 762 822 (581) 538 Bonaventure: (418) 530 534 (581) 364 630 827 Bonne-Espérance: (418) 379 (581) 296 Cacouna: see Rivière-du-Loup Cap-Chat: (418) 786 (581) 395 Cap-Saint-Ignace: (418) 246 715 Cap-Santé: see Donnacona Caplan: (418) 388 (581) 363 Carleton-sur-Mer: (418) 364 (581) 362 Cascapédia–Saint-Jules: see New Richmond Causapscal: (418) 756 (581) 394 Chambord: (418) 342 491 (581) 602 816 Chandler: (418) 398 616 680 689 (581) 361 Chapais: (418) 745 Château-Richer: (418) 824 972 978 Chibougamau: (418) 748 770 (581) 430 445 464 579 627 Chute-aux-Outardes: see Pessamit Clermont: (418) 201 439 489 (581) 239 Cloridorme: (418) 395 (581) 637 Colombier: (418) 565 (581) 644 Côte-Nord-du-Golfe-du-Saint-Laurent: (418) 242 787 795 (581) 293 295 301 Courcelles-Saint-Évariste: (418) 483 Dégelis: (418) 494 853 Deschambault-Grondines: see Portneuf Desbiens: (418) 346 (581) 597 817 Disraeli: (418) 449 (581) 209 714 Dolbeau-Mistassini: (418) 239 276 706 979 (581) 212 596 Donnacona: (418) 283 284 285 326 462 474 510 552 850 971 (581) 343 377 740 821 833 Dosquet: see Laurier-Station East Broughton: (418) 351 427 (581) 331 Escuminac: see Listuguj Esprit-Saint: see Lac-des-Aigles Essipit: see Les Escoumins Estcourt Station, Maine - see Pohénégamook Ferland-et-Boilleau: (418) 676 (581) 382 Fermont: (418) 287 (581) 231 444 Forestville: (418) 578 586 587 989 (581) 623 Fossambault-sur-le-Lac: see Sainte-Catherine-de-la-Jacques-Cartier Frampton: (418) 479 (581) 227 426 Franquelin: see Baie-Comeau Gaspé: (418) 269 355 360 361 368 819 892 (581) 348 360 635 636 822 832 887 Gesgapegiag: see Maria Girardville: (418) 258 (581) 595 651 Godbout: (418) 568 Grand-Métis: see Mont-Joli Grande-Rivière: (418) 385 (581) 359 Grande-Vallée: (418) 393 (581) 575 638 883 Gros-Mécatina: (418) 773 (581) 289 Grosse-Île: see Les Îles-de-la-Madeleine Grosses-Roches: see Sainte-Félicité Havre-Saint-Pierre: (418) 532 538 553 984 (581) 292 Hébertville: (418) 343 344 (581) 593 594 717 718 Hérouxville: see Saint-Tite Honfleur: see Saint-Anselme Hope: see Paspébiac Hope Town: see Paspébiac Inverness: (418) 453 470 (581) 272 Irlande: see Saint-Ferdinand Kamouraska: see Saint-Pascal Kawawachikamach: (418) 585 Kinnear's Mills: see Saint-Pierre-de-Broughton L'Ancienne-Lorette: see Québec City L'Ange-Gardien: see Boischatel L'Anse-Saint-Jean: (418) 272 608 (581) 390 L'Ascension-de-Notre-Seigneur: see Alma L'Ascension-de-Patapédia: see Saint-François-d'Assise L'Île-d'Anticosti: (418) 535 (581) 286 L'Isle-aux-Coudres: (418) 438 600 (581) 240 L'Isle-Verte: (418) 898 (581) 648 L'Islet: (418) 247 607 La Doré: (418) 256 604 917 (581) 592 La Durantaye: see Saint-Michel-de-Bellechasse La Guadeloupe: (418) 459 519 (581) 715 La Malbaie: (418) 202 270 324 434 601 617 620 633 665 790 (581) 241 256 727 La Martre: see Marsoui La Pocatière: (418) 371 856 (581) 213 La Rédemption: see Mont-Joli La Romaine: (418) 229 (581) 291 La Trinité-des-Monts: see Lac-des-Aigles Labrecque: see Alma Lac-au-Saumon: (418) 778 (581) 392 Lac-aux-Sables: (418) 336 (581) 275 Lac-Beauport: see Quebec City Lac-Bouchette: (418) 348 (581) 591 818 Lac-Delage: see Stoneham-et-Tewkesbury Lac-des-Aigles: (418) 779 (581) 600 Lac-Etchemin: (418) 625 (581) 215 820 Lac-Frontière: (418) 245 Lac-Jacques-Cartier: (418) 846 (581) 587 Lac-John: see Kawawachikamach Lac-Poulin: see Saint-Georges Lac-Saint-Joseph: see Sainte-Catherine-de-la-Jacques-Cartier Lac-Sergent: see Sainte-Catherine-de-la-Jacques-Cartier Lamarche: see Alma Lambton: (418) 486 Larouche: see Saguenay Laurier-Station: (418) 394 415 728 757 Lejeune: see Saint-Michel-du-Squatec Les Bergeronnes: (418) 232 (581) 238 324 Les Éboulements: (418) 635 975 (581) 242 Les Escoumins: (418) 233 (581) 243 322 Les Hauteurs: see Mont-Joli Les Îles-de-la-Madeleine: (418) 937 969 985 986 Les Méchins: (418) 729 (581) 391 Lévis: (418) 304 488 496 531 603 619 741 754 761 830 831 832 833 834 835 836 837 838 839 903 988 (581) 247 250 253 500 534 629 838 839 920 Listuguj: (418) 788 (581) 352 Longue-Pointe-de-Mingan: (418) 949 (581) 284 Longue-Rive: (418) 231 (581) 255 320 Lotbinière: see Saint-Édouard-de-Lotbinière Maliotenam: see Sept-Îles Maria: (418) 759 (581) 358 Marsoui: (418) 288 (581) 393 Mashteuiatsh: see Roberval Matane: (418) 429 556 560 562 566 (581) 232 261 334 379 631 834 Matapédia: (418) 320 865 (581) 884 Matimekosh: see Kawawachikamach Métabetchouan–Lac-à-la-Croix: (418) 349 (581) 590 716 Métis-sur-Mer: (418) 936 Mingan: see Longue-Pointe-de-Mingan Mistissini: (418) 923 Mont-Carmel: (418) 300 498 Mont-Joli: (418) 775 785 Mont-Saint-Pierre: see Saint-Maxime-du-Mont-Louis Montmagny: (418) 206 234 241 248 250 252 291 447 508 513 941 (581) 262 552 632 725 Murdochville: (418) 784 (581) 639 Natashquan: see Nutashkuan Neuville: (418) 791 876 909 New Carlisle: see Paspébiac New Richmond: (418) 372 391 392 (581) 346 355 886 Newport: (418) 777 (581) 356 Normandin: (418) 274 792 (581) 588 719 Notre-Dame-Auxiliatrice-de-Buckland: see Saint-Damien-de-Buckland Notre-Dame-de-Lorette: see Dolbeau-Mistassini Notre-Dame-de-Montauban: see Lac-aux-Sables Notre-Dame-des-Anges: see Québec City Notre-Dame-des-Monts: see Clermont Notre-Dame-des-Neiges: see Trois-Pistoles Notre-Dame-des-Pins: see Beauceville Notre-Dame-des-Sept-Douleurs: see L'Isle-Verte Notre-Dame-du-Portage: see Rivière-du-Loup Notre-Dame-du-Rosaire: see Saint-Paul-de-Montminy Notre-Dame-du-Sacré-Cœur-d'Issoudun: see Laurier-Station Nouvelle: (418) 794 (581) 354 Nutashkuan: (418) 726 (581) 288 622 Packington: see Dégelis Padoue: see Mont-Joli Paspébiac: (418) 375 751 752 (581) 233 357 Percé: (418) 370 408 645 782 783 (581) 353 365 Péribonka: (418) 374 793 (581) 586 Pessamit: (418) 567 (581) 643 Petit-Saguenay: see L'Anse-Saint-Jean Petite-Rivière-Saint-François: (418) 632 (581) 244 640 Petite-Vallée: see Grande-Vallée Pohénégamook: (418) 859 (581) 421 Pointe-à-la-Croix: see Listuguj Pointe-aux-Outardes: see Pessamit Pointe-Lebel: see Baie-Comeau Pont-Rouge: (418) 399 410 813 873 (581) 329 Port-Cartier: (418) 517 766 768 799 (581) 285 287 881 Port-Daniel–Gascons: (418) 396 (581) 351 Portneuf: (418) 286 913 Portneuf-sur-Mer: (418) 238 (581) 260 323 Price: see Mont-Joli Québec: (418) 204 208 210 254 255 260 261 262 263 264 265 266 271 316 317 353 380 407 425 431 440 446 454 455 456 463 468 473 476 478 520 521 522 523 524 525 527 528 529 554 558 559 561 563 564 569 570 571 572 573 574 575 576 577 580 609 614 621 622 623 624 626 627 628 634 640 641 643 644 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 663 664 666 667 670 681 682 683 684 686 687 688 691 692 694 704 708 717 747 767 780 781 800 801 802 803 805 806 808 809 821 840 841 842 843 845 847 849 861 864 871 872 874 877 890 905 906 907 914 915 922 925 928 929 930 931 932 933 934 948 951 952 953 955 956 977 990 997 998 999 (581) 201 251 300 305 307 308 309 313 316 317 318 319 349 366 400 401 450 531 578 580 628 681 700 701 702 703 704 705 741 742 745 777 781 814 836 888 922 925 927 928 980 981 982 983 984 985 986 989 990 991 994 995 996 997 998 999 Ragueneau: see Pessamit