Area codes 905, 289, and 365

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Area code 905 (with overlay area codes 289 and 365) is a telephone dialing area in southern Ontario, Canada. It includes the Niagara Peninsula, Hamilton, Oshawa, and the suburban greater Toronto area. It was assigned on October 4, 1993, as a split from area code 416. 289 began sharing the service area on June 9, 2001; since then, all local calls require ten-digit dialling. On April 13, 2010, the Canadian Radio-television and Telecommunications Commission (CRTC) announced that area codes 905 and 289 would be overlaid by a third area code, 365,[1] which became operational beginning on March 25, 2013.[2][3]

It surrounds area code 416/647/437 (the city of Toronto) and is bounded with area code 519/226 in the west, 705/249 in the north, 613/343 in the east, and New York State area code 716 on the eastern prong of the Niagara Peninsula.

The incumbent local exchange carrier for these area codes is Bell Canada, which acquired the remaining independent company around 1980.[citation needed]

History[edit]

The 905 area code was once used as a block of alternate numbers for calls from the United States to Mexico (+52-5-...) in the days when overseas calls otherwise would have needed to be placed through a telephone operator. This use became obsolete with the widespread introduction of direct dial overseas calls and was completely abolished no later than February 1, 1991. Partly because of this prior usage of the number 905, area code 905 was the last of the "original-1947-format" area codes (that is, area codes with "0" [zero] or "1" [one] for the middle digit, and 2-9 for the last digit) to be assigned. By October 1991, the numbering plan area (NPA) had been assigned to relieve exchanges in what was, then as now, Canada's largest toll-free calling zone. Automatic number identification (ANI) on the NPA's switching systems began transmission on October 11, 1992 for some central office codes, and full conversion was achieved by January 1, 1994.

Five years after its introduction, 905 was close to exhaustion far sooner than anticipated due to Canada's inefficient system of number allocation (with no number pooling in Canada, blocks of 10,000 numbers were assigned to each CLEC in each tiny hamlet served, with most of these wasted). This was exacerbated by the proliferation of cell phones, fax lines, and secondary phone lines for home dial-up Internet use. By 1999, the CRTC had established an ad-hoc committee to study NPA relief planning for area code 905. A split of the 905 NPA was considered, with various options presented:

  • a geographic split by municipality (either two-way or three-way)
  • a geographic split of concentric rings around Toronto
  • re-aligning NPA boundaries (some areas retain 905, others acquire a new NPA); that is, a municipality and exchange split
  • a distributed overlay

The overlay option was chosen because it would cause the least disruption; it would require no changes for existing customers in the 905 area. It would also be far easier to implement technically.

The 289 NPA overlay was approved by the CRTC on August 15, 2000 (Order CRTC 2000-772). Earlier that month, Toufic Saliba, consultant and technical engineer at the Commission, directed the addition of area code 289 in the 905 area code region. In doing so, Saliba directed that all carriers put in place a 10-digit dialing plan for all local calls. In this order, the Commission directed Bell Canada to implement the 10-digit local dialing plan.[4] 289 came into service on April 7, 2001, and was in full operation by June 9, 2001.

905 officially became exhausted in November 2005. All new central office prefixes are assigned in NPA 289, as there are no longer any available prefixes in 905. Due to the fact that this is a large and rapidly growing region, area code 365 has been assigned for further relief on March 25, 2013, and area code 742 has been set aside for further relief as the area is expected to exhaust by 2036 at current growth rates.[5]

In popular culture[edit]

The term the 905 or the 905 belt is used to describe the suburban areas of the Greater Toronto Area,[6] while Toronto proper is referred to as the 416. The term 905er is often used pejoratively by downtown and inner-city Toronto residents to refer to people from Toronto's suburbs.[7]

Canadian rapper Maestro rendered homage to the area code in his song "416/905 (TO Party Anthem)".

Rate centres and central office codes[edit]

  • Ajax-Pickering: (289)-200 224 229 255 275 277 314 315 372 387 388 403 417 422 423 460 482 484 539 545 608 624 631 660 882 892 913 915 923 980 986 987 988, (365)-610, (905)-231 239 250 391 409 420 421 422 423 424 426 427 428 492 509 550 619 621 622 626 683 686 706 744 767 831 837 839 903 995 999
  • Ancaster: (289)-204 239 346 443 445 450 495 515 735 855 902, (905)-304 648
  • Aurora: (289)-221 380 466 614 648 796 802 840 879 894 995, (905)-222 395 503 713 717 726 727 750 751 758 841 900
  • Beamsville: (289)-432 566 602, (905)-563
  • Beeton: (289)-415 899 970, (365)-560 (905)-724 729 748 801 909
  • Bethesda: (289)-615, (905)-504 888
  • Binbrook: (289)-286 287 424 522 568 756, (905)-692
  • Blackstock: (905)-986
  • Bolton: (289)-206 487 503 616 651 906, (905)-533 857 951
  • Bowmanville: (289)-223 276 626, (905)-419 623 697
  • Bradford: (289)-464 831, (365)-266 (905)-551 775 778
  • Brampton: (289)-201 233 298 323 325 401 406 410 418 498 499 505 541 569 632 654 747 748 752 764 801 864 889 900 901 946 948, (905)-216 230 291 450 451 452 453 454 455 456 457 458 459 460 463 487 488 494 495 497 499 500 595 598 654 759 781 782 783 789 790 791 792 793 794 796 798 799 840 846 861 863 866 867 872 874 901 965 970
  • Brooklin: (289)-227 645, (905)-425 620 655
  • Burlington: (289)-208 230 245 266 288 293 313 337 348 419 427 635 636 707 745 787 798 812 816 828 861 938 962 977 983, (905)-220 315 319 320 331 332 333 335 336 340 407 592 630 631 632 633 634 635 637 638 639 681 802
  • Caledon (eastern portion only): (289)-961 966, (905)-584 586 587 588 757 838 843 860 996
  • Caledonia: (289)-284 285 523 528 757 960, (905)-765
  • Campbellville: (289)-458 630, (905)-854
  • Castlemore: (289)-324 749, (905)-200 204 794 913 915
  • Castleton: (905)-344
  • Cayuga: (289)-370 516 603 736, (905)-772
  • Claremont: (905)-408 490 649
  • Cobourg: (289)-215 251 252 435 691 771 829, (905)-207 269 372 373 375 376 377 396
  • Colborne: (289)-265, (905)-355
  • Cold Springs: (905)-342
  • Dundas: (289)-238 345 446 494 517 737 858, (905)-627 628
  • Dunnville: (289)-209 330 331 332 369 377 381 433 518 604 738 761 972 973, (905)-229 701 774
  • Fisherville: (289)-601, (905)-779
  • Fort Erie / Ridgeway: (289)-250 303 320 321 322 476 599 762 876, (905)-871 894 991 992 993 994
  • Freelton: (289)-609 679, (905)-659
  • Garden Hill: (905)-797
  • Georgetown: (289)-344 349 428 642 790 839 890 891 924 935, (905)-702 703 873 877
  • Gormley: (289)-746, (905)-284 400 534 887 927
  • Grafton: (905)-349
  • Grimsby: (289)-205 235 336 447 455 493 770 797, (905)-309 945
  • Hagersville: (289)-282 283 524 758, (905)-768
  • Hamilton: (289)-237 244 246 253 260 263 308 309 335 339 358 382 389 391 396 408 425 426 439 440 441 442 456 489 492 520 527 556 639 667 674 678 680 682 683 684 689 698 700 755 766 768 769 773 774 775 776 778 779 780 788 799 808 827 860 877 880 887 919 920 921 922 925 931 933 941 949 975 978 994, (905)-218 253 296 297 308 312 314 317 318 379 381 383 385 387 388 389 390 393 481 496 512 515 516 517 518 520 521 522 523 524 525 526 527 528 529 531 536 537 538 540 541 543 544 545 546 547 548 549 560 561 570 572 573 574 575 577 578 581 645 661 667 719 730 741 745 746 769 777 807 818 865 869 870 902 906 912 920 921 923 928 929 961 962 963 966 971 972 973 974 975 977 978 979 981
  • Hampton: (905)-263 445
  • Keswick: (905)-476 535 656 700 989
  • King Township is divided into the following local rate centres:
    • King City: (289)-207 467 618 621 907, (905)-539 833
    • Nobleton: (289)-463 620 664, (905)-558 859
    • Schomberg: (289)-318 592, (905)-590 939
  • Kleinburg: (289)-202 216, (905)-552 893
  • Maple: (289)-217 304 342 357 463 468 553 832 917 963, (905)-303 417 553 585 653 832
  • Markham: (289)-301 306 307 378 451 469 507 554 661 800 818 846 859, (905)-201 202 205 209 294 350 471 472 554 910
  • Milton: (289)-230 270 350 409 412 429 627 670 728 862 851 878 930 971, (905)-299 462 514 636 691 693 699 749 805 864 875 876 878
  • Mississauga is divided into the following local rate centres:
    • Clarkson: (289)-299 326 373 420 628 825 826 849 898, (905)-254 403 491 822 823 855 916 919
    • Cooksville: (289)-232 261 327 360 362 374 421 444 454 497 521 565 628 633 724 777 805 883, (905)-206 210 212 214 219 232 238 241 247 267 268 270 272 273 275 276 277 279 281 282 283 290 306 361 366 402 501 502 507 566 568 602 614 615 624 625 629 712 755 756 766 803 804 848 890 896 897 949
    • Malton: (289)-247 328 359 384 548 562 623 625 729 804 865 904 988, (905)-234 255 256 293 298 362 364 405 461 564 565 612 670 671 672 673 676 677 678 694 696 698 740 795 908 956
    • Port Credit: (289)-297 329 643 822 847, (905)-221 271 274 278 486 891 990
    • Streetsville: (289)-290 305 334 375 457 540 652 719 814 848 896 914 997 998 999, (905)-236 285 286 288 301 302 363 369 412 542 567 569 593 600 601 603 606 607 608 609 785 812 813 814 816 817 819 820 821 824 826 828 858 997
  • Mount Albert: (289)-465 662, (905)-473 557
  • Mount Hope: (289)-280 281 491 525 759 866, (905)-679
  • Newcastle: (289)-629, (905)-446 987
  • Newmarket: (289)-231 264 279 319 338 340 366 383 395 453 470 500 504 663 716 730 763 803 841 903 909 926 934, (905)-235 251 252 392 657 710 715 716 806 830 836 853 868 895 898 952 953 954 955 960 967
  • Newtonville: (289)-964, (905)-786
  • Niagara Falls: (289)-248 257 271 292 294 296 302 341 361 402 477 932, (905)-262 295 351 353 354 356 357 358 371 374 394
  • Niagara-on-the-Lake: (289)-272 413 646 672 868, (905)-468
  • Oakville: (289)-218 219 242 243 259 291 295 300 351 363 386 400 430 529 644 681 725 772 795 813 815 817 834 835 837 838 856 881 885 888 863 910 936 937 940 952 981 993, (905)-208 257 287 330 334 337 338 339 399 464 465 466 467 469 483 484 510 580 582 599 616 617 618 808 815 825 827 829 842 844 845 847 849 901
  • Orono: (905)-485 983
  • Oshawa: (289)-222 240 254 274 312 316 355 356 385 404 405 481 512 600 634 675 676 685 688 701 830 869 886 918 927 928 939 943 979 991 992 996, (365)-800, (905)-213 215 233 240 242 243 244 245 259 260 261 404 410 429 431 432 433 434 435 436 438 439 440 441 442 443 447 448 449 498 571 576 579 644 674 675 718 720 721 723 725 728 743 809 914 922 924 925 926
  • Palgrave: (289)-594, (905)-583 880
  • Pelham: (289)-650 897, (905)-892
  • Port Colborne: (289)-478 836, (905)-834 835
  • Port Hope: (289)-436, (905)-800 885
  • Port Perry: (289)-225 354 485 653 912, (905)-982 985
  • Port Robinson: (289)-376, (905)-384
  • Queensville: (905)-478 589
  • Richmond Hill: (289)-269 317 353 379 399 452 475 496 506 537 538 550 637 666 809 819 833 842 867, 947, (905)-224 237 292 508 737 770 780 784 787 881 883 884 918
    • Oak Ridges: (289)-210 234 471 573 665, (905)-223 313 398 505 506 559 773
  • Roseneath: (905)-352
  • Selkirk: (905)-776
  • Snelgrove: (905)-843 996
  • St. Catharines-Thorold: (289)-213 214 219 228 241 267 273 362 364 398 407 434 438 479 501 606 668 669 686 687 690 696 697 723 781 782 783 786 929 931 968 969 974 990, (905)-225 227 228 246 280 321 322 323 324 325 327 328 329 341 345 346 347 348 359 360 378 380 397 401 641 646 650 651 658 680 682 684 685 687 688 704 708 931 932 933 934 935 937 938 941 964 980 984 988
  • Stevensville: (289)-397, (905)-382
  • Stoney Creek: (289)-203 448 490 526 656 760 765 965, (905)-594 636 662 664 930
  • Stouffville: (289)-212 508 612 617, (905)-591 640 642
  • Sutton: (289)-576, (905)-596 722
  • Thornhill: (289)-390 459 472 502 510 588 597 695 807 843 857 982, (905)-326 370 418 482 530 532 593 597 660 669 695 707 709 731 738 739 747 760 761 762 763 764 771 879 881 882 886 889 907
  • Toronto (former Pickering Township only): (905)-509
  • Tottenham: (289)-850, (365)-540 (905)-406 936
  • Unionville: (289)-333 392 473 577 584 789 806 844 884, (905)-248 258 300 305 307 316 413 415 470 474 475 477 479 480 489 513 604 752 754 917 940 943 944 946 947 948 968 969
  • Uxbridge: (289)-394 595 640, (905)-852 862 904
  • Victoria: (289)-955, (905)-838 998
  • Vineland: (289)-567 605, (905)-562
  • Wainfleet: (905)-899
  • Waterdown: (289)-352 431 619 767 895, (905)-689 690
  • Welcome: (905)-753
  • Welland: (289)-347 414 449 480 488 820 821 823, (905)-414 714 732 733 734 735 736 788
  • Wellandport:(289)-607, (905)-386
  • West Lincoln: (289)-560 956, (905)-957
  • Whitby: (289)-220 278 483 509 638 893 985 989, (905)-217 430 444 493 556 665 666 668
  • Winona: (289)-649, (905)-643
  • Woodbridge: (289)-236 245 256 268 371 393 474 536 596 622 657 845, (905)-264 265 266 417 605 652 663 850 851 856 893 553

See also[edit]

References[edit]

  1. ^ Hui, Ann (April 13, 2010). "‘905’ gets some new numbers". Toronto Star. Retrieved April 13, 2010. 
  2. ^ Lu, Vanessa (July 22, 2011). Toronto Star (Toronto Star Newspapers). 
  3. ^ "2 new area codes coming to GTA next month". CBC News. February 13, 2013. Retrieved March 23, 2013. 
  4. ^ Order CRTC 2001-840 (copy archived February 3, 2004)
  5. ^ "Telecom Decision CRTC 2010-213". Canadian Radio-television and Telecommunications Commission. 13 April 2010. Retrieved 27 October 2014. 
  6. ^ "905 region to add new area code". CBC News. April 13, 2010. Retrieved April 18, 2010. "The area around Toronto is known colloquially as "the 905," after the area code that was added in 1993 and covers such areas as Mississauga and Niagara Falls." 
  7. ^ Toronto, Cultural Tips, Places of a Lifetime, Travel, Photography - National Geographic

External links[edit]

Ontario area codes: 226, 249, 289, 343, 365, 416, 519, 613, 647, 705, 807, 905
North: 705
West: 519/226 Area codes 905 and 289 completely surrounding 416/647 East: 613/343, 716
South: 716, 585, Lake Ontario
New York area codes: 212, 315, 347, 516, 518, 585, 607, 631, 646, 716, 718, 845, 914, 917, 929

Coordinates: 43°37′48″N 79°50′20″W / 43.630°N 79.839°W / 43.630; -79.839