301 - 386 Area Code List
On this page is a detailed list of each area code between 301 - 386 and the basic location the area code is designated. Select an area code below to review a list of every number that was queried in that area code.
Area Code 301 - 386
| Area Code 301 Baltimore, Maryland U.S. | Area Code 302 New Castle, Delaware U.S. |
| Area Code 303 Denver, Colorado U.S. | Area Code 304 Kanawha, West Virginia U.S. |
| Area Code 305 Duval, Florida U.S. | Area Code 307 Laramie, Wyoming U.S. |
| Area Code 308 Douglas, Nebraska U.S. | Area Code 309 Cook, Illinois U.S. |
| Area Code 310 Los Angeles, California U.S. | Area Code 312 Cook, Illinois U.S. |
| Area Code 313 Wayne, Michigan U.S. | Area Code 314 Jackson, Missouri U.S. |
| Area Code 315 New York, New York U.S. | Area Code 316 Sedgwick, Kansas U.S. |
| Area Code 317 Marion, Indiana U.S. | Area Code 318 Orleans, Louisiana U.S. |
| Area Code 319 Polk, Iowa U.S. | Area Code 320 Hennepin, Minnesota U.S. |
| Area Code 321 Duval, Florida U.S. | Area Code 323 Los Angeles, California U.S. |
| Area Code 325 Harris, Texas U.S. | Area Code 330 Franklin, Ohio U.S. |
| Area Code 331 Cook, Illinois U.S. | Area Code 334 Jefferson, Alabama U.S. |
| Area Code 336 Fulton, Georgia U.S. | Area Code 336 Mecklenburg, North Carolina U.S. |
| Area Code 337 Orleans, Louisiana U.S. | Area Code 339 Suffolk, Massachusetts U.S. |
| Area Code 340 Anywhere, U.S. | Area Code 347 New York, New York U.S. |
| Area Code 351 Suffolk, Massachusetts U.S. | Area Code 352 Duval, Florida U.S. |
| Area Code 360 King, Washington U.S. | Area Code 361 Harris, Texas U.S. |
| Area Code 380 Duval, Florida U.S. | Area Code 380 Orleans, Louisiana U.S. |
| Area Code 385 Salt Lake, Utah U.S. | Area Code 386 Duval, Florida U.S. |