Santa Rosa, CA Area Codes

Area codes serving Santa Rosa

Santa Rosa sits in California, part of the West region and the Pacific Time zone. Its numbers are spread across an overlay of 2 codes that all cover the same ground: 369, 707.

The original code is 707 (in service since 1959). As the area ran low on numbers, regulators added overlay codes on top instead of splitting the city, so longtime residents kept their numbers while new lines received a newer code.

Code	Area served	In service
369	North Bay wine country and the North Coast of California, from Vallejo to Crescent City	February 1, 2023
707	North Bay wine country and the North Coast of California, from Vallejo to Crescent City	January 1, 1959

Nearby cities sharing these area codes

• Vallejo
• Fairfield
• Vacaville
• Napa
• Petaluma
• Rohnert Park
• Eureka
• Benicia
• Ukiah
• Healdsburg
• Arcata
• Crescent City

How to pick an area code for a new number

When you activate a new line in Santa Rosa, the carrier assigns whichever code has numbers available — you usually can't choose. If a specific code matters to you (for example the prestige of 707), ask the carrier whether any blocks remain, or request a number transfer. All codes here dial identically and cost the same.

Dialing in Santa Rosa

Because Santa Rosa is an overlay area, 10-digit dialing is mandatory: always dial the area code plus the seven-digit number, even for a neighbor. See 10-digit dialing and overlay area codes for the background. For every code in California, visit the California area codes page.