Illinois Phone Prefixes in 312-6XX Area Code
Phone Prefixes in the 312-6XX Area Code
| Prefix | Usage | Primary City |
|---|---|---|
| (312) 609 | Landline | Chicago |
| (312) 650 | Landline | Chicago |
| (312) 645 | Landline | Chicago |
| (312) 614 | Landline | Chicago |
| (312) 659 | Wireless | Chicago |
| (312) 606 | Landline | Chicago |
| (312) 603 | Landline | Chicago |
| (312) 699 | Wireless | Hinsdale |
| (312) 612 | Landline | Chicago |
| (312) 626 | Landline | Chicago |
| (312) 636 | Wireless | Chicago |
| (312) 688 | Wireless | Chicago |
| (312) 623 | Wireless | Chicago |
| (312) 690 | Unknown | |
| (312) 655 | Landline | Chicago |
| (312) 664 | Landline | Chicago |
| (312) 671 | Wireless | Chicago |
| (312) 608 | Wireless | Chicago |
| (312) 635 | Landline | Chicago |
| (312) 682 | Wireless | Chicago |
| (312) 691 | Wireless | Chicago |
| (312) 613 | Wireless | Chicago |
| (312) 666 | Landline | Chicago |
| (312) 643 | Landline | Chicago |
| (312) 630 | Landline | Chicago |
| (312) 694 | Landline | Chicago |
| (312) 602 | Landline | Chicago |
| (312) 657 | Wireless | Chicago |
| (312) 693 | Landline | Chicago |
| (312) 646 | Landline | Chicago |
| (312) 662 | Landline | Chicago |
| (312) 615 | Wireless | Wheeling |
| (312) 622 | Wireless | Chicago |
| (312) 698 | Landline | Chicago |
| (312) 685 | Wireless | Chicago |
| (312) 604 | Landline | Chicago |
| (312) 600 | Landline | Chicago |
| (312) 610 | Wireless | Chicago |
| (312) 649 | Landline | Chicago |
| (312) 672 | Landline | Chicago |
| (312) 696 | Landline | Chicago |
| (312) 695 | Landline | Chicago |
| (312) 678 | Wireless | Chicago |
| (312) 667 | Landline | Chicago |
| (312) 601 | Landline | Chicago |
| (312) 689 | Wireless | Chicago |
| (312) 681 | Landline | Chicago |
| Prefix | Usage | Primary City |
|---|---|---|
| (312) 677 | Wireless | Chicago |
| (312) 652 | Landline | Chicago |
| (312) 644 | Landline | Chicago |
| (312) 625 | Landline | Chicago |
| (312) 624 | Landline | Chicago |
| (312) 642 | Landline | Chicago |
| (312) 654 | Landline | Chicago |
| (312) 683 | Landline | Chicago |
| (312) 674 | Landline | Chicago |
| (312) 628 | Landline | Chicago |
| (312) 663 | Landline | Chicago |
| (312) 653 | Landline | Chicago |
| (312) 669 | Landline | Chicago |
| (312) 607 | Wireless | Chicago |
| (312) 618 | Wireless | Chicago |
| (312) 640 | Landline | Chicago |
| (312) 632 | Landline | Chicago |
| (312) 634 | Landline | Chicago |
| (312) 651 | Landline | Chicago |
| (312) 675 | Landline | Chicago |
| (312) 661 | Landline | Chicago |
| (312) 676 | Landline | Chicago |
| (312) 648 | Landline | Chicago |
| (312) 633 | Landline | Chicago |
| (312) 620 | Landline | Chicago |
| (312) 647 | Wireless | Chicago |
| (312) 660 | Landline | Chicago |
| (312) 616 | Landline | Chicago |
| (312) 627 | Landline | Chicago |
| (312) 617 | Wireless | Chicago |
| (312) 658 | Landline | Chicago |
| (312) 673 | Landline | Chicago |
| (312) 680 | Wireless | Chicago |
| (312) 692 | Landline | Chicago |
| (312) 637 | Landline | Chicago |
| (312) 638 | Landline | Chicago |
| (312) 670 | Landline | Chicago |
| (312) 629 | Landline | Chicago |
| (312) 605 | Landline | Chicago |
| (312) 679 | Wireless | Chicago |
| (312) 631 | Landline | Chicago |
| (312) 621 | Landline | Chicago |
| (312) 641 | Landline | Chicago |
| (312) 619 | Wireless | Chicago |
| (312) 697 | Landline | Chicago |
| (312) 665 | Landline | Chicago |
| (312) 656 | Wireless | Chicago |
More 3XX Area Codes Phone Numbers
