Illinois Phone Prefixes in 312-3XX Area Code
Phone Prefixes in the 312-3XX Area Code
| Prefix | Usage | Primary City |
|---|---|---|
| (312) 375 | Wireless | Chicago |
| (312) 303 | Wireless | Wheeling |
| (312) 384 | Landline | Chicago |
| (312) 352 | Wireless | Hinsdale |
| (312) 388 | Wireless | Chicago |
| (312) 325 | Landline | Chicago |
| (312) 349 | Wireless | Chicago |
| (312) 381 | Landline | Chicago |
| (312) 321 | Landline | Chicago |
| (312) 302 | Landline | Chicago |
| (312) 332 | Landline | Chicago |
| (312) 357 | Landline | Chicago |
| (312) 386 | Landline | Chicago |
| (312) 340 | Wireless | Chicago |
| (312) 305 | Wireless | Northbrook |
| (312) 310 | Wireless | Northbrook |
| (312) 398 | Wireless | Chicago |
| (312) 306 | Landline | Chicago |
| (312) 336 | Landline | Chicago |
| (312) 337 | Landline | Chicago |
| (312) 362 | Landline | Chicago |
| (312) 367 | Wireless | La Grange Park |
| (312) 348 | Landline | Chicago |
| (312) 327 | Landline | Chicago |
| (312) 365 | Wireless | Chicago |
| (312) 385 | Landline | Chicago |
| (312) 331 | Wireless | Wheeling |
| (312) 364 | Landline | Chicago |
| (312) 393 | Wireless | Chicago |
| (312) 354 | Wireless | Roselle |
| (312) 356 | Landline | Chicago |
| (312) 347 | Landline | Chicago |
| (312) 391 | Wireless | Chicago |
| (312) 394 | Landline | Chicago |
| (312) 323 | Wireless | Chicago |
| (312) 314 | Wireless | Hinsdale |
| (312) 343 | Wireless | Chicago |
| (312) 315 | Wireless | Chicago |
| (312) 363 | Landline | Chicago |
| (312) 366 | Wireless | La Grange Park |
| (312) 330 | Wireless | Chicago |
| (312) 342 | Wireless | Chicago |
| (312) 397 | Landline | Chicago |
| (312) 307 | Wireless | Chicago |
| (312) 351 | Wireless | Chicago |
| (312) 300 | Landline | Chicago |
| Prefix | Usage | Primary City |
|---|---|---|
| (312) 338 | Landline | Chicago |
| (312) 301 | Wireless | Hinsdale |
| (312) 326 | Landline | Chicago |
| (312) 379 | Landline | Chicago |
| (312) 371 | Wireless | Chicago |
| (312) 399 | Wireless | Chicago |
| (312) 341 | Landline | Chicago |
| (312) 320 | Wireless | Chicago |
| (312) 318 | Wireless | La Grange Park |
| (312) 334 | Landline | Chicago |
| (312) 335 | Landline | Chicago |
| (312) 389 | Wireless | Chicago |
| (312) 344 | Landline | Chicago |
| (312) 308 | Landline | Chicago |
| (312) 377 | Landline | Chicago |
| (312) 370 | Wireless | Chicago |
| (312) 359 | Wireless | Chicago |
| (312) 324 | Landline | Chicago |
| (312) 396 | Landline | Chicago |
| (312) 382 | Landline | Chicago |
| (312) 372 | Landline | Chicago |
| (312) 339 | Wireless | Chicago |
| (312) 322 | Landline | Chicago |
| (312) 328 | Landline | Chicago |
| (312) 376 | Landline | Chicago |
| (312) 350 | Wireless | Chicago |
| (312) 360 | Landline | Chicago |
| (312) 316 | Wireless | Chicago |
| (312) 317 | Wireless | Wheeling |
| (312) 333 | Wireless | Chicago |
| (312) 374 | Landline | Chicago |
| (312) 309 | Landline | Chicago |
| (312) 346 | Landline | Chicago |
| (312) 390 | Wireless | Chicago |
| (312) 304 | Wireless | Hinsdale |
| (312) 355 | Landline | Chicago |
| (312) 369 | Wireless | Chicago |
| (312) 378 | Wireless | Chicago |
| (312) 387 | Wireless | Chicago |
| (312) 353 | Landline | Chicago |
| (312) 361 | Landline | Chicago |
| (312) 368 | Landline | Chicago |
| (312) 329 | Landline | Chicago |
| (312) 380 | Landline | Chicago |
| (312) 345 | Landline | Chicago |
| (312) 395 | Landline | Chicago |
| (312) 373 | Landline | Chicago |
More 3XX Area Codes Phone Numbers
