Illinois Phone Prefixes in 815-4XX Area Code
Phone Prefixes in the 815-4XX Area Code
| Prefix | Usage | Primary City |
|---|---|---|
| (815) 456 | Landline | Franklin Grove |
| (815) 485 | Landline | New Lenox |
| (815) 496 | Landline | Sheridan |
| (815) 455 | Landline | Crystal Lake |
| (815) 495 | Landline | Leland |
| (815) 424 | Landline | Elwood |
| (815) 491 | Wireless | Rockford |
| (815) 478 | Landline | Manhattan |
| (815) 480 | Wireless | Rockford |
| (815) 439 | Landline | Plainfield |
| (815) 488 | Wireless | La Grange Park |
| (815) 420 | Landline | Malta |
| (815) 472 | Landline | Momence |
| (815) 461 | Landline | Lockport |
| (815) 445 | Landline | Sheffield |
| (815) 448 | Landline | Mazon |
| (815) 423 | Landline | Elwood |
| (815) 434 | Landline | Ottawa |
| (815) 492 | Landline | Apple River |
| (815) 499 | Wireless | Sterling |
| (815) 476 | Landline | Wilmington |
| (815) 405 | Wireless | Joliet |
| (815) 435 | Landline | Beaverville |
| (815) 459 | Landline | Crystal Lake |
| (815) 471 | Wireless | Watseka |
| (815) 438 | Landline | Tampico |
| (815) 414 | Wireless | Earlville |
| (815) 452 | Landline | Toluca |
| (815) 406 | Landline | Byron |
| (815) 428 | Landline | Martinton |
| (815) 415 | Landline | Seneca |
| (815) 450 | Wireless | Momence |
| (815) 444 | Landline | Crystal Lake |
| (815) 417 | Landline | Braidwood |
| (815) 426 | Landline | Herscher |
| (815) 462 | Landline | New Lenox |
| (815) 463 | Landline | New Lenox |
| (815) 413 | Landline | Morris |
| (815) 481 | Wireless | La Grange Park |
| (815) 401 | Landline | Kankakee |
| (815) 470 | Landline | Rockford |
| (815) 410 | Landline | La Salle |
| (815) 466 | Landline | Grant Park |
| (815) 430 | Landline | Mchenry |
| (815) 437 | Landline | Putnam |
| (815) 402 | Landline | Galena |
| (815) 429 | Landline | Sheldon |
| (815) 453 | Landline | Ashton |
| (815) 465 | Landline | Grant Park |
| Prefix | Usage | Primary City |
|---|---|---|
| (815) 412 | Landline | Frankfort |
| (815) 409 | Wireless | Joliet |
| (815) 475 | Landline | Yorkville |
| (815) 477 | Landline | Crystal Lake |
| (815) 442 | Landline | Tonica |
| (815) 440 | Wireless | Dixon |
| (815) 432 | Landline | Watseka |
| (815) 433 | Landline | Ottawa |
| (815) 483 | Wireless | Joliet |
| (815) 467 | Landline | Minooka |
| (815) 436 | Landline | Plainfield |
| (815) 451 | Wireless | Woodstock |
| (815) 404 | Wireless | Crystal Lake |
| (815) 479 | Landline | Crystal Lake |
| (815) 416 | Landline | Morris |
| (815) 441 | Wireless | Sterling |
| (815) 427 | Landline | St Anne |
| (815) 490 | Landline | Rockford |
| (815) 425 | Landline | Crystal Lake |
| (815) 454 | Landline | Sheffield |
| (815) 464 | Landline | Frankfort |
| (815) 407 | Landline | Romeoville |
| (815) 494 | Wireless | Rockford |
| (815) 408 | Landline | Utica |
| (815) 468 | Landline | Manteno |
| (815) 482 | Wireless | Woodstock |
| (815) 484 | Landline | Rockford |
| (815) 431 | Landline | Ottawa |
| (815) 460 | Landline | Joliet |
| (815) 418 | Landline | Manhattan |
| (815) 486 | Landline | Donovan |
| (815) 489 | Landline | Rockford |
| (815) 443 | Landline | Pearl City |
| (815) 474 | Wireless | Joliet |
| (815) 498 | Landline | Somonauk |
| (815) 458 | Landline | Braidwood |
| (815) 473 | Landline | Watseka |
| (815) 421 | Landline | Herscher |
| (815) 400 | Landline | Morrison |
| (815) 493 | Landline | Lanark |
| (815) 487 | Landline | Plainfield |
| (815) 446 | Landline | Oglesby |
| (815) 419 | Landline | Pontiac |
| (815) 469 | Landline | Frankfort |
| (815) 422 | Landline | St Anne |
| (815) 449 | Landline | Dakota |
| (815) 447 | Landline | Spring Valley |
| (815) 457 | Landline | Cissna Park |
| (815) 497 | Landline | Compton |
| (815) 403 | Wireless | Mchenry |
More 8XX Area Codes Phone Numbers
