Midwest
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355 area codes • Updated recently
Area code stats
Based on real reports from users
355
Area codes tracked
All US & territories
0
Scam reports
Community verified
8
Higher-risk codes
Require caution
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Last updated: recently
Data sources: FCC, FTC, community reports • Last updated:
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Important Security Notice
Area codes can be spoofed. Scammers often fake local numbers to gain trust. Always verify the caller through official channels and never share OTP, SSN, or banking details over the phone.
303
Denver, CO, CO
SAFE
Risk score: 0
SAFE
Reports: 5
304
Unknown
SAFE
Risk score: 0
SAFE
Reports: 28
306
Unknown
SAFE
Risk score: 0
SAFE
Reports: 1
307
Unknown
SAFE
Risk score: 0
SAFE
Reports: 5
308
Unknown
SAFE
Risk score: 0
SAFE
Reports: 2
309
Unknown
SAFE
Risk score: 0
SAFE
Reports: 3
310
Unknown
SAFE
Risk score: 0
SAFE
Reports: 14
313
Unknown
SAFE
Risk score: 0
SAFE
Reports: 8
314
Unknown
SAFE
Risk score: 0
SAFE
Reports: 6
315
Unknown
SAFE
Risk score: 0
SAFE
Reports: 7
316
Unknown
SAFE
Risk score: 0
SAFE
Reports: 8
317
Unknown
SAFE
Risk score: 0
SAFE
Reports: 4
318
Unknown
SAFE
Risk score: 0
SAFE
Reports: 5
319
Unknown
SAFE
Risk score: 0
SAFE
Reports: 1
320
Unknown
SAFE
Risk score: 0
SAFE
Reports: 3
321
Unknown
SAFE
Risk score: 0
SAFE
Reports: 6
323
Unknown
SAFE
Risk score: 0
SAFE
Reports: 21
324
Unknown
SAFE
Risk score: 0
SAFE
Reports: 2
325
Unknown
SAFE
Risk score: 0
SAFE
Reports: 4
326
Unknown
SAFE
Risk score: 0
SAFE
Reports: 1
330
Unknown
MEDIUM
Risk score: 48
MEDIUM
Reports: 8
332
Unknown
SAFE
Risk score: 0
SAFE
Reports: 9
334
Unknown
SAFE
Risk score: 0
SAFE
Reports: 5
336
Unknown
SAFE
Risk score: 0
SAFE
Reports: 10
337
Unknown
SAFE
Risk score: 0
SAFE
Reports: 4
339
Unknown
SAFE
Risk score: 0
SAFE
Reports: 1
343
Unknown
SAFE
Risk score: 0
SAFE
Reports: 2
345
Unknown
SAFE
Risk score: 0
SAFE
Reports: 1
346
Unknown
SAFE
Risk score: 0
SAFE
Reports: 6
347
Unknown
SAFE
Risk score: 0
SAFE
Reports: 6
351
Unknown
SAFE
Risk score: 0
SAFE
Reports: 1
352
Unknown
SAFE
Risk score: 0
SAFE
Reports: 1
360
Unknown
SAFE
Risk score: 0
SAFE
Reports: 16
361
Unknown
MEDIUM
Risk score: 51
MEDIUM
Reports: 5
364
Unknown
SAFE
Risk score: 0
SAFE
Reports: 1
365
Unknown
SAFE
Risk score: 0
SAFE
Reports: 1
380
Unknown
SAFE
Risk score: 0
SAFE
Reports: 1
385
Unknown
SAFE
Risk score: 0
SAFE
Reports: 1
386
Unknown
SAFE
Risk score: 0
SAFE
Reports: 3
401
Unknown
SAFE
Risk score: 0
SAFE
Reports: 3
402
Unknown
SAFE
Risk score: 0
SAFE
Reports: 3
403
Unknown
SAFE
Risk score: 0
SAFE
Reports: 1
405
Unknown
SAFE
Risk score: 0
SAFE
Reports: 4
406
Unknown
SAFE
Risk score: 0
SAFE
Reports: 5
407
Unknown
SAFE
Risk score: 0
SAFE
Reports: 8
408
Unknown
SAFE
Risk score: 0
SAFE
Reports: 5
409
Unknown
SAFE
Risk score: 0
SAFE
Reports: 4
410
Unknown
SAFE
Risk score: 0
SAFE
Reports: 3
412
Unknown
SAFE
Risk score: 0
SAFE
Reports: 13
413
Unknown
SAFE
Risk score: 0
SAFE
Reports: 2
| Code | Location | State | Reports | Risk | |
|---|---|---|---|---|---|
| 303 | Denver, CO | CO | 5 | SAFE | View |
| 304 | Unknown | — | 28 | SAFE | View |
| 306 | Unknown | — | 1 | SAFE | View |
| 307 | Unknown | — | 5 | SAFE | View |
| 308 | Unknown | — | 2 | SAFE | View |
| 309 | Unknown | — | 3 | SAFE | View |
| 310 | Unknown | — | 14 | SAFE | View |
| 313 | Unknown | — | 8 | SAFE | View |
| 314 | Unknown | — | 6 | SAFE | View |
| 315 | Unknown | — | 7 | SAFE | View |
| 316 | Unknown | — | 8 | SAFE | View |
| 317 | Unknown | — | 4 | SAFE | View |
| 318 | Unknown | — | 5 | SAFE | View |
| 319 | Unknown | — | 1 | SAFE | View |
| 320 | Unknown | — | 3 | SAFE | View |
| 321 | Unknown | — | 6 | SAFE | View |
| 323 | Unknown | — | 21 | SAFE | View |
| 324 | Unknown | — | 2 | SAFE | View |
| 325 | Unknown | — | 4 | SAFE | View |
| 326 | Unknown | — | 1 | SAFE | View |
| 330 | Unknown | — | 8 | MEDIUM | View |
| 332 | Unknown | — | 9 | SAFE | View |
| 334 | Unknown | — | 5 | SAFE | View |
| 336 | Unknown | — | 10 | SAFE | View |
| 337 | Unknown | — | 4 | SAFE | View |
| 339 | Unknown | — | 1 | SAFE | View |
| 343 | Unknown | — | 2 | SAFE | View |
| 345 | Unknown | — | 1 | SAFE | View |
| 346 | Unknown | — | 6 | SAFE | View |
| 347 | Unknown | — | 6 | SAFE | View |
| 351 | Unknown | — | 1 | SAFE | View |
| 352 | Unknown | — | 1 | SAFE | View |
| 360 | Unknown | — | 16 | SAFE | View |
| 361 | Unknown | — | 5 | MEDIUM | View |
| 364 | Unknown | — | 1 | SAFE | View |
| 365 | Unknown | — | 1 | SAFE | View |
| 380 | Unknown | — | 1 | SAFE | View |
| 385 | Unknown | — | 1 | SAFE | View |
| 386 | Unknown | — | 3 | SAFE | View |
| 401 | Unknown | — | 3 | SAFE | View |
| 402 | Unknown | — | 3 | SAFE | View |
| 403 | Unknown | — | 1 | SAFE | View |
| 405 | Unknown | — | 4 | SAFE | View |
| 406 | Unknown | — | 5 | SAFE | View |
| 407 | Unknown | — | 8 | SAFE | View |
| 408 | Unknown | — | 5 | SAFE | View |
| 409 | Unknown | — | 4 | SAFE | View |
| 410 | Unknown | — | 3 | SAFE | View |
| 412 | Unknown | — | 13 | SAFE | View |
| 413 | Unknown | — | 2 | SAFE | View |
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