Area Code Box

Area code 858

Where is area code 858?

San Diego, Poway and Chula Vista, California

Local time: … (Pacific Time)

StateCalifornia
CountryUnited States
Main citiesSan Diego, Poway and Chula Vista
Time zonePacific Time
Overlay area codes619
In service since1999 (created from 619)
Assigned prefixes563
Dialing format(858) XXX-XXXX · +1 858 XXX XXXX from abroad

Look up a 858 number

Enter a 3-digit area code or a full 10-digit number.

Cities and towns in area code 858

Listed by how many phone prefixes (the 3 digits after the area code) are assigned to each place in 858.

Phone companies in area code 858

The carriers that hold the most 858 prefixes. People can move their number to another carrier, so this shows who first issued a number, not who serves it today.

PrefixesCarrier
151Pacific Bell (AT&T)
50New Cingular Wireless PCS (AT&T)
44T-Mobile USA
35Fractel
34Onvoy
33Mcimetro Access Transmission Services
31Verizon Wireless
26Teleport Communications America

All 563 prefixes in area code 858

Pick the 3 digits after the area code to see that prefix’s city and carrier.

Area codes that overlay 858

Questions

Where is area code 858?
Area code 858 is in California. It serves San Diego, Poway, Chula Vista, El Cajon and Rancho Santa Fe and 9 other cities and towns.
What time zone is area code 858 in?
Area code 858 uses Pacific Time.
What area codes overlay 858?
619 serves the same area as 858. New numbers in the area can get any of these codes, which is why local calls need all 10 digits.
Is a call from area code 858 a scam?
The area code alone doesn’t tell you. Most calls from 858 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 858 number, let it go to voicemail.
When did area code 858 start?
858 went into service in 1999. It was created from area code 619.
Can a 858 number be outside California?
Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 858 caller can be anywhere.

Other area codes in California

Area codeMain cities
209Stockton, Modesto and Merced
213Lsan Da 01, Los Angeles and Lsan Da 10
279Sacramento, Folsom and Elk Grove
310Los Angeles, Gardena and Beverly Hills
323Los Angeles, Montebello and South Gate
341Fremont, Oakland and Hayward
350Stockton, Modesto and Atwater
357Clovis, Firebaugh and Fresno
369Santa Rosa, Clearlake and Fairfield
408San Jose, Sunnyvale and Campbell
415San Francisco, San Rafael and Novato
424Los Angeles, Torrance and Beverly Hills
442Victorville, Palm Springs and Indio
510Oakland, Fremont and Hayward
530Chico, Redding and Yuba City
559Fresno, Visalia and Clovis
562Long Beach, Bellflower and Downey
626Alhambra, Pasadena and Covina
628San Francisco, San Rafael and Novato
650Palo Alto, San Mateo and Mountain View
657Anaheim, Huntington Beach and Santa Ana
661Bakersfield, Palmdale and Valencia
669San Jose, Campbell and Sunnyvale
707Santa Rosa, Fairfield and Vallejo
714Anaheim, Santa Ana and Orange
738Los Angeles, South Gate and Lsan Da 01
747Burbank, Calabasas and Glendale
760Palm Springs, Vista and Escondido
805Oxnard, Santa Barbara and Thousand Oaks
818Van Nuys, Calabasas and Burbank
820Camarillo, Oxnard and Newbury Park
831Salinas, Santa Cruz and Monterey
837Redding, Auburn and Chico
840San Bernardino, Pomona and Lake Arrowhead
909Ontario, San Bernardino and Rancho Cucamonga
916Sacramento, Roseville and Folsom
925Walnut Creek, Concord and Pleasanton
949Irvine, Aliso Viejo and Newport Beach
951Riverside, Corona and Temecula