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Area codes 306 and 639 are the telephone area codes in the Canadian province of Saskatchewan, encompassing the province. The incumbent local exchange carrier in 306 and 639 is SaskTel. The main area code, 306, is one of the original 86 area codes assigned in 1947, in the contiguous United States and the then-nine-province extent of Canada. Saskatchewan's second area code, 639, was introduced in 2012, and is an overlay of 306. Despite Saskatchewan's small population, 306 was on the verge of exhaustion due to Canada's inefficient number allocation system. All competitive local exchange carriers are allocated exclusive access to at least one three-digit prefix – comprising 10,000 numbers each – for every rate centre where they plan to offer service, even for the smallest hamlets. While each competing carrier did not necessarily need that many numbers in a particular market, unused numbers were not available for use elsewhere once they were assigned to a particular carrier and rate centre. Since number pooling is not used as a relief measure in Canada, this resulted in thousands of wasted numbers. The number shortage was exacerbated by the proliferation of cell phones and other mobile devices requiring unique telephone numbers, particularly in Regina and Saskatoon. Unlike what was previously done in jurisdictions such as neighbouring Alberta, It was decided to implement the new area code as an overlay rather than a split. Overlays have become the preferred method of area code relief in Canada; no area codes have been split in the country since 1999. While this had the effect of allocating 15.8 million numbers to a province of just over a million people, SaskTel and other carriers wanted to spare existing subscribers, particularly in rural areas, the burden and expense of changing their numbers. 10-digit-dialing began in 2012, and became mandatory throughout the province in May 2013. Until the implementation of 639, Saskatchewan was the last of Canada's original NPAs where seven-digit dialling had not been broken. ==Communities included== *Arborfield: (306) - 769 *Balgonie: (306) - 702 771 *Beauval: (306) - 288 *Borden: (306) - 997 *Carrot River: (306) - 768 401 *Central Butte: (306) - 796 *Dalmeny: (306) - 254 *Dog River: (306) - 776 *Esterhazy:(306) - 701 745 *Estevan: (306) - 308 339 340 415 421 461 471 634 636 637 687, (639) - 450 *Foam Lake: (306) - 272 *Fort Qu'Appelle: (306) - 331 332 *Francis: (306) - 245 *Humboldt: (306) - 231 289 320 366 367 368 598 682 944 *East Lloydminster: (306) - 307 603 820 821 825 830 *Grayson & Crooked Lake: (306) - 794 *Kamsack:(306) - 542 591 *Kindersley: (306) - 379 430 460 463 512 604 838 965 967 968 *Kinistino: (306) - 864 *Lloydminster: (306) - 214 307 603 808 820 821 825 830 875, (639)- 840 *Lumsden: (306) - 731 *Meadow Lake: (306) - 234 236 240 304 819 *Meath Park: (306) - 929 *Melfort: (306) - 275 277 346 752 863 920 921 *Melville: (306) - 607 707 720 728 730 748 760 *Milestone: (306) - 436, (639) - 440 450 *Mistatim: (306) - 889 *Moose Jaw: (306) - 214 313 556 624 630 631 681 684 690 691 692 693 694 704 756 905 972 983 990 *Nipawin:(306) - 862 *North Battleford: (306) - 208 317 386 407 440 441 445 446 470 480 481 490 499 817 906 937 *Pilot Butte, Saskatchewan: (306) - 584 586 781 *Porcupine Plain, Saskatchewan: (306) - 278 *Prince Albert: (306) - 314 557 703 763 764 765 904 922 930 940 941 953 960 961 970 980 981 987, (639)- 314 760 *Prud'homme: (306) - 654 (639) - 653 *Radisson: (306) - 827 *Regina: (306) - 201 205 206 209 216 337 347 351 352 359 450 501 502 503 509 517 519 520 522 523 525 526 527 529 530 531 533 535 536 537 539 540 541 543 545 546 550 551 552 559 564 565 566 569 570 580 581 584 585 586 591 596 719 721 737 751 757 761 766 775 777 779 780 781 787 789 790 791 797 798 908 924 926 936 949 988 992 993 994 995 999, (639)-316 444 528 560 571 590 600 601 602 603 604 605 606 607 608 609 625 640 641 642 643 644 645 646 647 648 649 739 740 888 955 997 999 *Rocanville: (306) - 645 *Rose Valley: (306) - 322 *Rouleau: (306) - 776 *Saskatoon: (306) - 202 203 220 221 222 227 229 230 241 242 244 249 250 251 260 261 262 270 280 281 290 291 292 321 341 343 361 370 371 373 374 380 381 382 384 385 477 491 514 518 612 649 651 652 653 655 657 659 664 665 667 668 683 700 713 715 716 717 803 844 850 866 880 881 899 902 931 933 934 938 952 955 956 964 966 974 975 977 978 979 985 986 996 998 (639)-317 470 471 480 635 887 996 998 *Sheho: (306) - 849 *St. Isidore-de-Bellevue: (306) - 423 *Strasbourg: (306) - 725 *Swift Current: (306) - 315 437 741 750 770 772 773 774 778 816 907 971 973 *Tisdale: (306) - 873 *Watrous: (306) - 917 946 *Weyburn: (306) - 405 504 509 842 848 861 869 870 891 897 908 *Wynyard: (306) - 554 *Yorkton: (306) - 316 521 620 621 641 708 782 783 786 818 828 890 909 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Area codes 306 and 639」の詳細全文を読む スポンサード リンク
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