Detroit Area Phone Prefixes Note: Areas 1, 2, & 3 are on the EAST side of Detroit (East of Woodward Ave.) Areas 4, 5, & 6 are on the WEST side of Detroit (West of Woodward Ave.) 220 221 222 AREA 1 223 AREA 1 224 AREA 1 225 AREA 1 226 AREA 1 227 BRIGHTON 228 MT. CLEMENS 229 230 231 232 FLINT 233 FLINT 234 235 236 237 AREA 1 238 FLINT 239 FLINT 240 241 242 MONROE 243 244 TROY 245 AREA 2 246 247 UTICA 248 249 250 251 252 AREA 3 253 254 UTICA 255 AREA 5 256 AREA 1 257 258 BIRMINGHAM 259 AREA 1 260 261 LIVONIA 262 SOUTHFIELD 263 MT. CLEMENS 264 WARREN 265 BIRMINGHAM 266 267 AREA 2 268 WARREN 269 270 AREA 4 271 AREA 6 272 AREA 4 273 AREA 4 274 AREA 6 275 AREA 5 276 AREA 5 277 AREA 6 278 AREA 6 279 280 ROYAL OAK 281 WYANDOTTE 282 WYANDOTTE 283 WYANDOTTE 284 WYANDOTTE 285 WYANDOTTE 286 MT. CLEMENS 287 WYANDOTTE 288 ROYAL OAK 289 290 291 AREA 6 292 AREA 6 293 ROSEVILLE 294 ROSEVILLE 295 AREA 6 296 ROSEVILLE 297 AREA 6 298 AREA 1 299 320 ROYAL OAK 321 AREA 5 322 AREA 6 323 AREA 6 324 325 326 WAYNE 327 328 AREA 5 329 PORT HURON 330 331 AREA 2 332 PONTIAC 333 PONTIAC 334 PONTIAC 335 PONTIAC 336 AREA 6 337 AREA 6 338 PONTIAC 339 340 341 AREA 4 342 AREA 4 343 AREA 2 344 345 AREA 4 346 347 348 NORTHVILLE 349 NORTHVILLE 350 SOUTHFIELD 351 SOUTHFIELD 352 SOUTHFIELD 353 SOUTHFIELD 354 SOUTHFIELD 355 SOUTHFIELD 356 SOUTHFIELD 357 SOUTHFIELD 358 SOUTHFIELD 359 LEXINGTON 360 COMMERCE 361 AREA 1 362 TROY 363 COMMERCE 364 PORT HURON 365 AREA 3 366 AREA 3 367 368 AREA 3 369 AREA 3 370 371 AREA 2 372 AREA 2 373 PONTIAC 374 WYANDOTTE 375 ROCHESTER 376 377 PONTIAC 378 379 ROCKWOOD 380 381 AREA 6 382 AREA 6 383 AREA 6 384 385 PORT HURON 386 AREA 6 387 388 AREA 6 389 AREA 6 390 AREA 6 391 PONTIAC 392 393 AREA 1 394 CLARKSTON 395 396 AREA 1 397 WAYNE 398 ROYAL OAK 399 ROYAL OAK 420 PLYMOUTH 421 LIVONIA 422 LIVONIA 423 SOUTHFIELD 424 SOUTHFIELD 425 LIVONIA 426 427 LIVONIA 428 429 SALINE 430 AREA 1 431 AREA 1 432 433 BIRMINGHAM 434 YPSILANTI 435 ROYAL OAK 436 AREA 6 437 SOUTH LYON 438 439 440 AREA 5 441 AREA 1 442 443 SOUTHFIELD 444 AREA 5 445 ROSEVILLE 446 AREA 1 447 448 449 WHITE LAKE 450 451 452 453 PLYMOUTH 454 455 PLYMOUTH 456 457 458 459 PLYMOUTH 460 461 462 463 MT. CLEMENS 464 LIVONIA 465 MT. CLEMENS 466 MT. CLEMENS 467 468 MT. CLEMENS 469 MT. CLEMENS 470 471 FARMINGTON 472 473 FARMINGTON 474 FARMINGTON 475 476 FARMINGTON 477 FARMINGTON 478 FARMINGTON 479 480 481 482 YPSILANTI 483 YPSILANTI 484 YPSILANTI 485 486 487 YPSILANTI 488 489 FARMINGTON 490 491 AREA 4 492 CENTER LINE 493 AREA 4 494 AREA 1 495 YPSILANTI 496 AREA 1 497 CENTER LINE 498 499 AREA 2 520 521 AREA 2 522 LIVONIA 523 LIVONIA 524 TROY 525 LIVONIA 526 AREA 2 527 AREA 2 528 TROY 529 530 SOUTHFIELD 531 AREA 5 532 AREA 5 533 AREA 5 534 AREA 5 535 AREA 5 536 AREA 3 537 AREA 5 538 AREA 5 539 AREA 3 540 BIRMINGHAM 541 ROYAL OAK 542 ROYAL OAK 543 ROYAL OAK 544 ROYAL OAK 545 ROYAL OAK 546 ROYAL OAK 547 ROYAL OAK 548 ROYAL OAK 549 ROYAL OAK 550 551 ROYAL OAK 552 SOUTHFIELD 553 FARMINGTON 554 AREA 6 555 556 AREA 1 557 SOUTHFIELD 558 CENTERLINE 559 SOUTHFIELD 560 AREA 5 561 AREA 6 562 AREA 6 563 AREA 6 564 AREA 3 565 AREA 6 566 AREA 3 567 AREA 1 568 AREA 1 569 SOUTHFIELD 570 571 AREA 2 572 573 CENTERLINE 574 CENTERLINE 575 CENTERLINE 576 ROYAL OAK 577 AREA 1 578 CENTERLINE 579 AREA 2 580 581 AREA 6 582 AREA 6 583 ROYAL OAK 584 AREA 6 585 ROYAL OAK 586 587 588 ROYAL OAK 589 ROYAL OAK 590 591 LIVONIA 592 AREA 5 593 AREA 6 594 AREA 6 595 WAYNE 596 AREA 1 597 ROYAL OAK 598 MT. CLEMENS 599 AREA 5 620 621 622 623 DRAYTON PLNS 624 WALLED LAKE 625 CLARKSTON 626 MAYFAIR 627 628 629 FENTON 630 AREA 5 631 632 633 634 HOLLY 635 SCHWARTZ CRK 636 637 BIRMINGHAM 638 639 640 641 BIRMINGHAM 642 BIRMINGHAM 643 BIRMINGHAM 644 BIRMINGHAM 645 BIRMINGHAM 646 BIRMINGHAM 647 BIRMINGHAM 648 649 BIRMINGHAM 650 651 ROCHESTER 652 ROCHESTER 653 FLINT 654 655 656 ROCHESTER 657 658 659 660 661 MAYFAIR 662 ANN ARBOR 663 ANN ARBOR 664 LAPEER 665 ANN ARBOR 666 DRAYTON PLNS 667 668 ANN ARBOR 669 WALLED LAKE 670 671 TRENTON 672 673 DRAYTON PLNS 674 DRAYTON PLNS 675 TRENTON 676 TRENTON 677 678 679 CROSWELL 680 TROY 681 PONTIAC 682 PONTIAC 683 PONTIAC 684 685 MILFORD 686 687 MT. MORENCY 688 689 TROY 690 AREA 5 691 692 693 694 695 COMMERCE 696 BIRMINGHAM 697 BELLEVILLE 698 COMMERCE 699 BELLEVILLE 720 721 WAYNE 722 WAYNE 723 724 725 NEW BALTMORE 726 727 728 WAYNE 729 WAYNE 730 731 UTICA 732 733 FLINT 734 735 736 FLINT 737 MAYFAIR 738 739 UTICA 740 741 742 743 FLINT 744 745 AREA 1 746 SOUTHFIELD 747 748 749 NEW HAVEN 750 FLINT 751 CENTER LINE 752 ROMEO 753 NEW BALTMORE 754 CENTER LINE 755 CENTER LINE 756 CENTER LINE 757 CENTER LINE 758 CENTER LINE 759 CENTER LINE 760 761 ANN ARBOR 762 FLINT 763 764 765 MARINE CITY 766 767 768 769 770 771 ROSEVILLE 772 ROSEVILLE 773 ROSEVILLE 774 ROSEVILLE 775 ROSEVILLE 776 ROSEVILLE 777 ROSEVILLE 778 ROSEVILLE 779 ROSEVILLE 780 781 WASHINGTON 782 FLATROCK 783 784 785 FLINT 786 787 788 789 790 ROSEVILLE 791 MT. CLEMENS 792 MT. CLEMENS 793 794 MT. CLEMENS 795 796 797 798 799 820 821 AREA 2 822 AREA 2 823 AREA 2 824 AREA 2 825 WARREN 826 WARREN 827 SOUTHFIELD 828 TROY 829 AREA 5 830 831 AREA 1 832 AREA 1 833 AREA 1 834 AREA 4 835 AREA 4 836 AREA 4 837 AREA 4 838 AREA 4 839 AREA 2 840 841 AREA 6 842 AREA 6 843 AREA 6 844 845 AREA 6 846 AREA 6 847 848 849 AREA 6 850 851 MAYFAIR 852 ROCH. HILLS 853 AUBURN HILLS 854 855 MAYFAIR 856 TEMPERANCE 857 PONTIAC 858 PONTIAC 859 860 861 AREA 4 862 AREA 4 863 AREA 4 864 AREA 4 865 AREA 3 866 AREA 3 867 AREA 3 868 AREA 3 869 AREA 3 870 871 AREA 1 872 AREA 1 873 AREA 1 874 AREA 1 875 AREA 1 876 AREA 1 877 878 879 TROY 880 881 AREA 2 882 AREA 2 883 AREA 3 884 AREA 2 885 AREA 2 886 AREA 2 887 HIGHLAND 888 889 AREA 2 890 891 AREA 3 892 AREA 3 893 AREA 3 894 AREA 1 895 AREA 1 896 AREA 1 897 AREA 1 898 AREA 1 899 AREA 1 920 921 AREA 2 922 AREA 2 923 AREA 2 924 AREA 2 925 AREA 2 926 AREA 2 927 AREA 4 928 AREA 6 929 930 931 AREA 4 932 933 AREA 4 934 AREA 4 935 AREA 4 936 ANN ARBOR 937 AREA 5 938 AREA 5 939 WARREN 940 941 ROMULUS 942 ROMULUS 943 AREA 6 944 945 AREA 6 946 ROMULUS 947 CENTERLINE 948 949 MT. CLEMENS 950 AREA 4 951 952 953 954 955 956 AREA 3 957 958 959 960 961 AREA 1 962 AREA 1 963 AREA 1 964 AREA 1 965 AREA 1 966 AREA 1 967 ROYAL OAK 968 ROYAL OAK 969 970 971 972 AREA 1 973 ANN ARBOR 974 AREA 1 975 976 AREA 1 977 WARREN 978 WARREN 979 WARREN 980 981 PLYMOUTH 982 983 AREA 1 984 PORT HURON 985 986 CENTERLINE 987 988 989 990 991 992 993 AREA 1 994 ANN ARBOR 995 ANN ARBOR 996 ANN ARBOR 997 AREA 1 998 999 ----------------------------------------------------------------------------- The above is a list of three digit phone prefixes in the 313 (South-east Michigan) area code, and their location, according to city. Most of the city designations are those used by Michigan Bell Telephone Co., but some are by actual city or township location, as ascertained by me by way of knowing some- one located in the particular three digit prefix. This list was compiled at the beginning of July of 1989; it is by no means claimed to be complete, but is as correct as I am able to ascertain. As an inveterate bulletin board user, I find this list helpful to me in determining which prefixes are local to my calling area, as they are listed in the Ameritech White Pages. (The list is near the beginning of every local white pages telephone directory.) If you are frugal, as I am, this listing can help you avoid making calls to bbs's in areas that will cost you "zone charges" of anywhere from 5 cents to 15 cents per minute while on line. Using this list, in conjunction with Horst Mann's 313BBS##.LST, can help you decide which bbs's are in your local calling area, and which are near or far zone. David Veatch - Tony's Corner BBS Remote Sysop (313) 754-1131 & M.C.U.G. BBS Remote Sysop (313) 293-7340