Illinois Phone Prefixes in 815-5XX Area Code
Phone Prefixes in the 815-5XX Area Code
| Prefix | Usage | Primary City |
|---|---|---|
| (815) 534 | Landline | Frankfort |
| (815) 595 | Landline | Oregon |
| (815) 507 | Landline | Momence |
| (815) 594 | Landline | Apple River |
| (815) 585 | Landline | Morris |
| (815) 525 | Landline | Beloit |
| (815) 547 | Landline | Belvidere |
| (815) 572 | Landline | Marengo |
| (815) 558 | Wireless | Rockford |
| (815) 548 | Landline | Sterling |
| (815) 513 | Landline | Morris |
| (815) 523 | Landline | Kankakee |
| (815) 528 | Landline | Mchenry |
| (815) 518 | Landline | Coal City |
| (815) 590 | Wireless | Sterling |
| (815) 520 | Wireless | Rockford |
| (815) 535 | Landline | Sterling |
| (815) 578 | Landline | Mchenry |
| (815) 502 | Landline | Woodstock |
| (815) 563 | Landline | Dakota |
| (815) 539 | Landline | Mendota |
| (815) 567 | Landline | Emington |
| (815) 556 | Landline | Plainfield |
| (815) 591 | Landline | Hanover |
| (815) 543 | Wireless | Rockford |
| (815) 554 | Landline | East Dubuque |
| (815) 530 | Landline | Joliet |
| (815) 574 | Landline | Harmon |
| (815) 545 | Wireless | Joliet |
| (815) 531 | Landline | Joliet |
| (815) 519 | Wireless | Rockford |
| (815) 529 | Wireless | Woodstock |
| (815) 557 | Wireless | Joliet |
| (815) 593 | Landline | Dekalb |
| (815) 508 | Wireless | Dekalb |
| (815) 546 | Wireless | Joliet |
| (815) 538 | Landline | Mendota |
| (815) 542 | Landline | Tampico |
| (815) 576 | Landline | Polo |
| (815) 501 | Wireless | Dekalb |
| (815) 579 | Wireless | La Salle |
| (815) 559 | Landline | Fulton |
| (815) 549 | Wireless | Kankakee |
| (815) 527 | Landline | Woodstock |
| (815) 577 | Landline | Plainfield |
| (815) 524 | Landline | Lockport |
| (815) 568 | Landline | Marengo |
| (815) 573 | Landline | Kankakee |
| (815) 584 | Landline | Dwight |
| Prefix | Usage | Primary City |
|---|---|---|
| (815) 537 | Landline | Prophetstown |
| (815) 582 | Wireless | Joliet |
| (815) 541 | Wireless | Freeport |
| (815) 580 | Landline | Rockford |
| (815) 586 | Landline | Ransom |
| (815) 592 | Wireless | Kankakee |
| (815) 551 | Landline | Savanna |
| (815) 500 | Landline | Marseilles |
| (815) 533 | Wireless | La Grange Park |
| (815) 503 | Wireless | Mendota |
| (815) 581 | Landline | Spring Grove |
| (815) 553 | Landline | Joliet |
| (815) 599 | Landline | Freeport |
| (815) 515 | Landline | Watseka |
| (815) 552 | Landline | Lockport |
| (815) 598 | Landline | Elizabeth |
| (815) 532 | Wireless | Morris |
| (815) 564 | Landline | Sterling |
| (815) 588 | Landline | Lockport |
| (815) 526 | Landline | Crystal Lake |
| (815) 522 | Landline | Kirkland |
| (815) 562 | Landline | Rochelle |
| (815) 504 | Landline | Gardner |
| (815) 550 | Landline | Grant Park |
| (815) 509 | Wireless | Rockford |
| (815) 536 | Wireless | La Grange Park |
| (815) 517 | Landline | Dekalb |
| (815) 514 | Wireless | Joliet |
| (815) 560 | Landline | Harvard |
| (815) 540 | Wireless | Rockford |
| (815) 566 | Landline | Belvidere |
| (815) 505 | Wireless | Rockford |
| (815) 561 | Landline | Rochelle |
| (815) 583 | Landline | Morrison |
| (815) 575 | Wireless | Woodstock |
| (815) 521 | Landline | Minooka |
| (815) 589 | Landline | Fulton |
| (815) 510 | Landline | Streator |
| (815) 569 | Landline | Capron |
| (815) 587 | Landline | Ottawa |
| (815) 506 | Landline | Union |
| (815) 570 | Landline | Sandwich |
| (815) 597 | Landline | Garden Prairie |
| (815) 512 | Landline | Lockport |
| (815) 571 | Landline | Shannon |
| (815) 516 | Landline | Rockford |
| (815) 565 | Landline | Morrison |
| (815) 596 | Landline | Marengo |
| (815) 544 | Landline | Belvidere |
More 8XX Area Codes Phone Numbers
