Active Prefixes in Area Code 279

- 279-321
- Folsom, California
- 279-800
- Elk Grove, California
- 279-777
- Scrm North, California
- 279-399
- Scrm Main, California
- 279-444
- Scrm Main, California
- 279-888
- Lincoln, California
- 279-201
- Fair Oaks, California
- 279-333
- Elk Grove, California
- 279-999
- So Placer, California
- 279-300
- Scrm Main, California
- 279-972
- Scrm North, California
- 279-900
- Rsvl Main, California
- 279-200
- Scrm Main, California
- 279-222
- Scrm Main, California
- 279-666
- Scrm North, California