858 area code
San Diego area, Pacific Time.Area code 858 covers San Diego, La Jolla, Del Mar and 14 more places in California, on Pacific Time. 619 covers the same area.
Right now in San Diego
Pacific Time (PST, UTC-8; PDT, UTC-7 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
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Where 858 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 858 has 17. Each one's share is how many 858 numbers start there. Its biggest metro area is San Diego-Cula Vista-Carlsbad, CA.
- San Diego31%
- La Jolla30%
- Del Mar8%
- Poway8%
- Rancho Bernardo7%
- Rancho Penasquitos4%
- Chula Vista3%
- El Cajon3%
- Rancho Santa Fe3%
Also: La Mesa, National City, Coronado, Harbison-Alpine, Pine Valley, Dulzura, Jacumba, Campo
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call an 858 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 858 number to them, since you can't tell a work line from a personal cell.
What applies to 858Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
858 and 619
858 went into service on June 12, 1999. 858 and 619 cover the same area, so new numbers can get either code and neighbors can have different area codes. 858 holds 42% of the area's exchanges; 619 holds the most. Local calls take all 10 digits.
- 1982619 overlay
- 1999858 starts
Source: NANPA area code database
Other California area codes
All California area codes- Stockton209350
- Los Angeles213323738
- Sacramento279916
- Compton310424
- Oakland341510
- Fresno357559
- Santa Rosa369707
- San Jose408669
- San Francisco415628
- Oceanside442760
- Chico530837
- Long Beach562
- Alhambra626
- Palo Alto650
- Anaheim657714
- Bakersfield661
- Van Nuys747818
- Santa Barbara805820
- Salinas831
- Ontario840909
- Walnut Creek925
- Irvine949
- Riverside951
Calling a list of 858 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
858 area code FAQ
What area code is 858?
858 is a California area code for San Diego, La Jolla, Del Mar, Poway and 13 more places.
What time zone is the 858 area code in?
Pacific Time (PST, UTC-8; PDT, UTC-7 in summer).
Is 619 the same as 858?
Same area, different code. 858 and 619 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 858 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 858 area code start?
On June 12, 1999.
Calling 858 numbers? Reach more of them.
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