Illinois Phone Prefixes in 815-3XX Area Code

Phone Prefixes in the 815-3XX Area Code

Prefix Usage Primary City
(815) 327 Landline Plainfield
(815) 315 Landline Rockford
(815) 357 Landline Seneca
(815) 332 Landline Cherry Valley
(815) 376 Landline Ohio
(815) 390 Landline Braidwood
(815) 365 Landline Reddick
(815) 337 Landline Woodstock
(815) 338 Landline Woodstock
(815) 309 Landline Shannon
(815) 319 Wireless Rockford
(815) 321 Landline Woodstock
(815) 314 Landline Manhattan
(815) 336 Landline Milledgeville
(815) 361 Landline Manhattan
(815) 335 Landline Winnebago
(815) 358 Landline Cornell
(815) 346 Landline Gardner
(815) 339 Landline Granville
(815) 362 Landline German Valley
(815) 310 Landline Utica
(815) 374 Landline Dwight
(815) 301 Landline Crystal Lake
(815) 300 Landline Chicago
(815) 302 Wireless Joliet
(815) 385 Landline Mchenry
(815) 349 Landline Mchenry
(815) 348 Landline Kankakee
(815) 393 Landline Monroe Center
(815) 343 Wireless Oglesby
(815) 356 Landline Crystal Lake
(815) 387 Landline Rockford
(815) 344 Landline Mchenry
(815) 388 Landline Mchenry
(815) 347 Wireless Woodstock
(815) 328 Landline Lockport
(815) 308 Landline Woodstock
(815) 396 Landline Steward
(815) 386 Wireless Kankakee
(815) 373 Landline Elwood
(815) 370 Wireless Kankakee
(815) 322 Landline Mchenry
(815) 398 Landline Rockford
(815) 325 Wireless Joliet
(815) 324 Landline Ottawa
(815) 350 Landline Franklin Grove
(815) 392 Landline Kinsman
(815) 363 Landline Mchenry
(815) 360 Landline Sublette
Prefix Usage Primary City
(815) 369 Landline Lena
(815) 333 Landline Woodstock
(815) 304 Landline Kankakee
(815) 397 Landline Rockford
(815) 334 Landline Woodstock
(815) 366 Landline Ottawa
(815) 371 Landline Utica
(815) 384 Landline Malta
(815) 354 Wireless Woodstock
(815) 372 Landline Romeoville
(815) 351 Wireless Kankakee
(815) 399 Landline Rockford
(815) 340 Landline La Moille
(815) 303 Wireless Princeton
(815) 307 Landline Mchenry
(815) 320 Wireless Kankakee
(815) 312 Landline Rockford
(815) 367 Landline Winslow
(815) 342 Wireless Joliet
(815) 382 Wireless Woodstock
(815) 305 Landline Gardner
(815) 368 Landline Lostant
(815) 391 Landline Rockford
(815) 375 Wireless Dekalb
(815) 341 Wireless Joliet
(815) 352 Landline Kankakee
(815) 378 Wireless Rockford
(815) 353 Wireless Woodstock
(815) 330 Landline Crescent City
(815) 316 Landline Rockford
(815) 359 Landline Harmon
(815) 379 Landline Walnut
(815) 389 Landline Beloit
(815) 313 Landline Ottawa
(815) 355 Wireless Woodstock
(815) 345 Landline Woodstock
(815) 395 Landline Rockford
(815) 317 Landline Crescent City
(815) 381 Landline Rockford
(815) 380 Landline Sterling
(815) 331 Landline Mchenry
(815) 326 Wireless Oglesby
(815) 364 Landline Morris
(815) 318 Landline Morris
(815) 394 Landline Rockford
(815) 383 Wireless Crescent City
(815) 306 Landline Lockport
(815) 323 Landline Belvidere
(815) 377 Landline Crescent City
(815) 329 Landline Rockford

More 8XX Area Codes Phone Numbers