- Area Code 400 - Alabama, Albertville US
- Area Code 401 - Alberta, Edmonton United States
- Area Code 402 - Alberta, Grande Prairie United States
- Area Code 403 - Alabama, Birmingham US
- Area Code 404 - Alberta, Lac La Biche United States
- Area Code 405 - Alberta, Edmonton United States
- Area Code 406 - Alberta, Edmonton United States
- Area Code 407 - Alberta, Edmonton United States
- Area Code 408 - Alberta, Edmonton United States
- Area Code 409 - Alberta, Edmonton United States
- Area Code 410 - Alberta, Calgary United States
- Area Code 411 - Ohio, Jersey City US
- Area Code 412 - Alberta, Edmonton United States
- Area Code 413 - Alberta, Edmonton United States
- Area Code 414 - Alberta, Edmonton United States
- Area Code 415 - Alberta, Edmonton United States
- Area Code 416 - Alberta, Sherwood Park United States
- Area Code 417 - Alberta, Sherwood Park United States
- Area Code 418 - Alberta, Saint Albert United States
- Area Code 419 - Alberta, Saint Albert United States
- Area Code 420 - Alberta, Airdrie United States
- Area Code 421 - Alberta, Warner United States
- Area Code 422 - Alberta, High River United States
- Area Code 423 - Alberta, Edmonton United States
- Area Code 424 - Alberta, Edmonton United States
- Area Code 425 - Alberta, Edmonton United States
- Area Code 426 - Alberta, Edmonton United States
- Area Code 427 - Alberta, Brooks United States
- Area Code 428 - Alberta, Edmonton United States
- Area Code 429 - Alberta, Rocky Mountain House United States
- Area Code 430 - Alberta, Edmonton United States
- Area Code 431 - Alberta, Banff United States
- Area Code 432 - Alberta, Edmonton United States
- Area Code 433 - Alberta, Edmonton United States
- Area Code 434 - Alberta, Edmonton United States
- Area Code 435 - Alberta, Edmonton United States
- Area Code 436 - Alberta, Edmonton United States
- Area Code 437 - Alberta, Edmonton United States
- Area Code 438 - Alberta, Olds United States
- Area Code 439 - Alberta, Edmonton United States
- Area Code 440 - Alberta, Calgary United States
- Area Code 441 - Alberta, Edmonton United States
- Area Code 442 - Alberta, Trochu United States
- Area Code 443 - Alberta, Three Hills United States
- Area Code 444 - Alberta, Calgary United States
- Area Code 445 - Alberta, Three Hills United States
- Area Code 446 - Alberta, Edmonton United States
- Area Code 447 - Alberta, Edmonton United States
- Area Code 448 - Alberta, Edmonton United States
- Area Code 449 - Alberta, Sherwood Park United States
- Area Code 450 - Alberta, Edmonton United States
- Area Code 451 - Alberta, Calgary United States
- Area Code 452 - Alberta, Edmonton United States
- Area Code 453 - Alberta, Edmonton United States
- Area Code 454 - Alberta, Edmonton United States
- Area Code 455 - Alberta, Edmonton United States
- Area Code 456 - Alberta, Calgary United States
- Area Code 457 - Alberta, Edmonton United States
- Area Code 458 - Alberta, Saint Albert United States
- Area Code 459 - Alberta, Saint Albert United States
- Area Code 460 - Alberta, Saint Albert United States
- Area Code 461 - Alberta, Calgary United States
- Area Code 462 - Alberta, Calgary United States
- Area Code 463 - Alberta, Calgary United States
- Area Code 464 - Alberta, Calgary United States
- Area Code 465 - Alberta, Calgary United States
- Area Code 466 - Alberta, Calgary United States
- Area Code 467 - Alberta, Calgary United States
- Area Code 468 - Alberta, Edmonton United States
- Area Code 469 - Alberta, High River United States
- Area Code 470 - Alberta, Calgary United States
- Area Code 471 - Alberta, Calgary United States
- Area Code 472 - Alberta, Calgary United States
- Area Code 473 - Alberta, Calgary United States
- Area Code 474 - Alberta, Edmonton United States
- Area Code 475 - Alberta, Edmonton United States
- Area Code 476 - Alberta, Edmonton United States
- Area Code 477 - Alberta, Edmonton United States
- Area Code 478 - Alberta, Edmonton United States
- Area Code 479 - Alberta, Edmonton United States
- Area Code 480 - Alberta, Strathmore United States
- Area Code 481 - Alberta, Edmonton United States
- Area Code 482 - Alberta, Edmonton United States
- Area Code 483 - Alberta, Edmonton United States
- Area Code 484 - Alberta, Edmonton United States
- Area Code 485 - Alberta, Vulcan United States
- Area Code 486 - Alberta, Vulcan United States
- Area Code 487 - Alberta, Edmonton United States
- Area Code 488 - Alberta, Medicine Hat United States
- Area Code 489 - Alberta, Edmonton United States
- Area Code 490 - Alberta, Edmonton United States
- Area Code 491 - Alberta, Edmonton United States
- Area Code 492 - Alberta, Edmonton United States
- Area Code 493 - Alberta, Canmore United States
- Area Code 494 - Alberta, Hines Creek United States
- Area Code 495 - Alberta, Edmonton United States
- Area Code 496 - Alberta, Edmonton United States
- Area Code 497 - Alberta, Edmonton United States
- Area Code 498 - Alberta, Edmonton United States
- Area Code 499 - Alberta, Edmonton United States