Area Code 503 is located in the state of Oregon.
The Oregon`s major city is Portland
The state of Oregon is in Pacific timezone.
More important cities in Oregon:
Aloha, OR; Beaverton, OR; Gresham, OR; Hillsboro, OR; Keizer, OR; Lake Oswego, OR; Mcminnville, OR; Milwaukie, OR; Oregon City, OR; Portland, OR; Salem, OR; Tigard, OR; Tualatin, OR; West Linn, OR; Woodburn, OR;
Prefixes within the 503 Area Code what we have in our database.
| Prefix | Primary City | County | Usage |
| (503) 301 | Portland, OR | Multnomah | Cell Number |
| (503) 302 | Salem, OR | Marion | Landline |
| (503) 303 | Portland, OR | Multnomah | Landline |
| (503) 304 | Salem, OR | Marion | Landline |
| (503) 305 | Portland, OR | Multnomah | Landline |
| (503) 306 | Portland, OR | Multnomah | Landline |
| (503) 307 | Portland, OR | Multnomah | Cell Number |
| (503) 308 | Clatskanie, OR | Columbia | Landline |
| (503) 309 | Portland, OR | Multnomah | Cell Number |
| (503) 310 | Portland, OR | Multnomah | Cell Number |
| (503) 312 | Portland, OR | Multnomah | Cell Number |
| (503) 313 | Portland, OR | Multnomah | Cell Number |
| (503) 314 | Portland, OR | Multnomah | Cell Number |
| (503) 315 | Salem, OR | Marion | Landline |
| (503) 316 | Salem, OR | Marion | Landline |
| (503) 317 | Portland, OR | Multnomah | Cell Number |
| (503) 318 | Portland, OR | Multnomah | Cell Number |
| (503) 319 | Portland, OR | Multnomah | Cell Number |
| (503) 320 | Portland, OR | Multnomah | Cell Number |
| (503) 321 | Portland, OR | Multnomah | Landline |
| (503) 322 | Bay City, OR | Tillamook | Landline |
| (503) 323 | Portland, OR | Multnomah | Landline |
| (503) 324 | Beaverton, OR | Washington | Landline |
| (503) 325 | Astoria, OR | Clatsop | Landline |
| (503) 326 | Portland, OR | Multnomah | Landline |
| (503) 327 | Tigard, OR | Washington | Landline |
| (503) 328 | Gresham, OR | Multnomah | Landline |
| (503) 329 | Portland, OR | Multnomah | Cell Number |
| (503) 330 | Beaverton, OR | Washington | Cell Number |
| (503) 331 | Portland, OR | Multnomah | Landline |
| (503) 332 | Beaverton, OR | Washington | Cell Number |
| (503) 333 | Portland, OR | Not filled | Unknown |
| (503) 334 | Portland, OR | Multnomah | Landline |
| (503) 335 | Portland, OR | Multnomah | Landline |
| (503) 336 | Beaverton, OR | Washington | Landline |
| (503) 337 | Estacada, OR | Clackamas | Landline |
| (503) 338 | Astoria, OR | Clatsop | Landline |
| (503) 339 | Salem, OR | Marion | Landline |
| (503) 340 | Portland, OR | Multnomah | Landline |
| (503) 341 | Portland, OR | Multnomah | Cell Number |
| (503) 342 | Portland, OR | Multnomah | Landline |
| (503) 343 | Portland, OR | Multnomah | Landline |
| (503) 344 | Portland, OR | Multnomah | Landline |
| (503) 345 | Cloverdale, OR | Tillamook | Landline |
| (503) 346 | Portland, OR | Multnomah | Landline |
| (503) 347 | Portland, OR | Multnomah | Cell Number |
| (503) 348 | Portland, OR | Multnomah | Cell Number |
| (503) 349 | Portland, OR | Multnomah | Cell Number |
| (503) 350 | Beaverton, OR | Washington | Landline |
| (503) 351 | Portland, OR | Multnomah | Cell Number |
| (503) 352 | Beaverton, OR | Washington | Landline |
| (503) 353 | Clackamas, OR | Clackamas | Landline |
| (503) 354 | Tillamook, OR | Tillamook | Landline |
| (503) 355 | Rockaway, OR | Tillamook | Landline |
| (503) 356 | Beaverton, OR | Washington | Landline |
| (503) 357 | Forest Grove, OR | Washington | Landline |
| (503) 358 | Portland, OR | Washington | Cell Number |
| (503) 359 | Forest Grove, OR | Washington | Landline |
| (503) 360 | Portland, OR | Not filled | Unknown |
| (503) 361 | Salem, OR | Marion | Landline |
| (503) 362 | Salem, OR | Marion | Landline |
| (503) 363 | Salem, OR | Marion | Landline |
| (503) 364 | Salem, OR | Marion | Landline |
| (503) 365 | Salem, OR | Marion | Landline |
| (503) 366 | St Helens, OR | Columbia | Landline |
| (503) 367 | Portland, OR | Multnomah | Cell Number |
| (503) 368 | Nehalem, OR | Tillamook | Landline |
| (503) 369 | St Helens, OR | Columbia | Cell Number |
| (503) 370 | Salem, OR | Marion | Landline |
| (503) 371 | Salem, OR | Marion | Landline |
| (503) 372 | Beaverton, OR | Washington | Landline |
| (503) 373 | Salem, OR | Marion | Landline |
| (503) 374 | Tillamook, OR | Tillamook | Landline |
| (503) 375 | Salem, OR | Marion | Landline |
| (503) 376 | Mcminnville, OR | Yamhill | Landline |
| (503) 377 | Bay City, OR | Tillamook | Landline |
| (503) 378 | Salem, OR | Marion | Landline |
| (503) 379 | Mcminnville, OR | Yamhill | Landline |
| (503) 380 | Portland, OR | Multnomah | Cell Number |
| (503) 381 | Portland, OR | Washington | Cell Number |
| (503) 382 | Tigard, OR | Washington | Landline |
| (503) 383 | Salem, OR | Marion | Landline |
| (503) 384 | Portland, OR | Washington | Landline |
| (503) 385 | Salem, OR | Marion | Landline |
| (503) 386 | Astoria, OR | Not filled | Unknown |
| (503) 387 | Tigard, OR | Washington | Landline |
| (503) 388 | Portland, OR | Not filled | Unknown |
| (503) 389 | Tigard, OR | Washington | Landline |
| (503) 390 | Salem, OR | Marion | Landline |
| (503) 391 | Salem, OR | Marion | Landline |
| (503) 392 | Cloverdale, OR | Tillamook | Landline |
| (503) 393 | Salem, OR | Marion | Landline |
| (503) 394 | Scio, OR | Linn | Landline |
| (503) 395 | Rainier, OR | Columbia | Landline |
| (503) 396 | St Helens, OR | Columbia | Cell Number |
| (503) 397 | St Helens, OR | Columbia | Landline |
| (503) 398 | Beaver, OR | Tillamook | Landline |
| (503) 399 | Salem, OR | Marion | Landline |
| (503) 400 | Salem, OR | Not filled | Unknown |
| (503) 401 | Portland, OR | Multnomah | Landline |
We have 782 Prefixes in our database.