Area code 858
Get a 858 phone number
To get a 858 phone number, pick an available 858 number below and sign up for AvoCall. Your new number works for calls and texts on the phone you already own over WiFi or data. Current web pricing is verified at checkout. No second SIM and no new device are required.
- Location
- San Diego, CA, California
- Time zone
- Pacific (GMT -8)
- Related area codes
- Related:619
The 858 area code covers San Diego, CA and nearby California communities.
Top 20 858 numbers available right now
Pulled live from our carrier network. Last updated: August 25, 2026 at 12:41 AM UTC.
Every number requires an AvoCall plan. Current web pricing is verified at checkout, and number availability changes often.
About the 858 area code
San Diego shares area code 858 with Del Mar, Rancho Santa Fe, and other communities in California. The territory's clocks follow Pacific Time (GMT -8).
858 was introduced in 1999 on ground connected with the 619 code. The two codes together now form an overlay complex covering the same communities, which means callers dial ten digits even for numbers next door.
Dialing note: 858 is part of an overlay complex with 619, so local calls in this area are dialed with all ten digits.
Numbering details on this page (service dates and overlay status) are checked against the NANPA numbering registry. Registry data as of 07/16/2026.
858 phone number FAQ
- How do I get a 858 phone number?
- Pick an available 858 number and sign up for AvoCall. Your new San Diego, CA number works for calls and texts on your existing phone over WiFi or data. Current web pricing is verified at checkout. There is no second SIM and no new device.
- Where is the 858 area code?
- It serves San Diego, CA and nearby cities in California, including San Diego, Del Mar, Rancho Santa Fe.
- Can I receive verification codes on a 858 number?
- AvoCall 858 numbers support calling and messaging. Verification-text compatibility varies by sender; short-code and 2FA delivery is not guaranteed.