801 and 385 Area Codes
251 area code was split from area code 334 and formed on June 18, 2001. The 251 area code covers the southwestern part of Alabama including Mobile, Baldwin and Washington Counties, and parts of six other counties.
| Alpine, UT | American Fork, UT | Bingham Canyon, UT |
| Bountiful, UT | Cedar Valley, UT | Centerville, UT |
| Clearfield, UT | Croydon, UT | Draper, UT |
| Eagle Mountain, UT | Eden, UT | Elberta, UT |
| Farmington, UT | Goshen, UT | Herriman, UT |
| Hill Afb, UT | Hooper, UT | Huntsville, UT |
| Kaysville, UT | Layton, UT | Lehi, UT |
| Lindon, UT | Magna, UT | Mapleton, UT |
| Midvale, UT | Morgan, UT | North Salt Lake, UT |
| Ogden, UT | Orem, UT | Payson, UT |
| Pleasant Grove, UT | Provo, UT | Riverton, UT |
| Roy, UT | Salem, UT | Salt Lake City, UT |
| Sandy, UT | Santaquin, UT | Saratoga Springs, UT |
| South Jordan, UT | Spanish Fork, UT | Springville, UT |
| Syracuse, UT | West Jordan, UT | Woods Cross, UT |