Area Code Box

Area code 628

Where is area code 628?

San Francisco, San Rafael and Novato, California

Local time: … (Pacific Time)

StateCalifornia
CountryUnited States
Main citiesSan Francisco, San Rafael and Novato
Time zonePacific Time
Overlay area codes415
In service since2015 (created from 415)
Assigned prefixes193
Dialing format(628) XXX-XXXX · +1 628 XXX XXXX from abroad

Look up a 628 number

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

Cities and towns in area code 628

Listed by how many phone prefixes (the 3 digits after the area code) are assigned to each place in 628.

Phone companies in area code 628

The carriers that hold the most 628 prefixes. People can move their number to another carrier, so this shows who first issued a number, not who serves it today.

PrefixesCarrier
33Fractel
32Onvoy
28T-Mobile USA
17Teleport Communications America
13Bandwidth.com CLEC
12New Cingular Wireless PCS (AT&T)
9Verizon Wireless
8Peerless Network of California

All 193 prefixes in area code 628

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

Area codes that overlay 628

Questions

Where is area code 628?
Area code 628 is in California. It serves San Francisco, San Rafael, Novato, Belvedere and Corte Madera and 6 other cities and towns.
What time zone is area code 628 in?
Area code 628 uses Pacific Time.
What area codes overlay 628?
415 serves the same area as 628. 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 628 a scam?
The area code alone doesn’t tell you. Most calls from 628 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 628 number, let it go to voicemail.
When did area code 628 start?
628 went into service in 2015. It was created from area code 415.
Can a 628 number be outside California?
Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 628 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
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
619San Diego, Chula Vista and El Cajon
626Alhambra, Pasadena and Covina
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
858San Diego, Poway and Chula Vista
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