628

San Francisco, California

California · Pacific (UTC-8) · — · 10 cities

State
California
Major City
San Francisco
Time Zone
Pacific (UTC-8)
Current Local Time
—
Cities Served
10

Cities Served by Area Code 628 (10 cities)

Corte Madera+1 codeFairfax+1 codeLarkspur+1 codeMill Valley+1 codeNovato+1 codeSan Anselmo+1 codeSan Francisco+1 codeSan Rafael+1 codeSausalito+1 codeTiburon+1 code
Additional Details
Established
2015
Type
Overlay
Active Prefixes
207
Wireless Lines
25%

About Area Code 628

Area code 628 was introduced in 2015 as an overlay code, sharing the same geographic region as an existing area code to meet growing demand for phone numbers in the San Francisco area. The area is in the Pacific time zone. It covers 10 cities and communities including Corte Madera, Fairfax, Larkspur, Mill Valley, Novato and 5 more.

Phone Number Prefixes in Area Code 628

207 active NXX prefixes — 25% wireless, 75% landline. Each prefix (NXX) represents up to 10,000 phone numbers.

Fractel 33 (16%)Onvoy 31 (15%)T-Mobile 27 (13%)Teleport Communications America 17 (8%)Bandwidth.com 13 (6%)
PrefixCarrierTypeRate Center
628-200OnvoyLandlineSnfc Junpr
628-201OnvoyLandlineSnfc Cntrl
628-202T-MobileWirelessBelvedere
628-203OnvoyLandlineStnsn-Blns
628-204T-MobileWirelessNicasio
628-205Verizon WirelessWirelessSnfc Cntrl
628-206AT&T (Pacific Bell)LandlineSnfc Cntrl
628-207Bandwidth.comLandlineSnfc Mt-Ev
628-208VonageLandlineSnfc Cntrl
628-209TelnyxLandlineNovato
628-210Peerless Network Of CaliforniaLandlineInverness
628-211Multiple Ocn ListingLandline
628-212Bandwidth.comLandlineCortemadra
628-213T-MobileWirelessSnfc Cntrl
628-214Peerless Network Of CaliforniaLandlineNovato
628-215Bandwidth.comLandlineMillvalley
628-216Bandwidth.comLandlinePointreyes
628-217Teleport Communications AmericaLandlineSnfc Cntrl
628-218MCI/VerizonWirelessSnfc Cntrl
628-219AT&T MobilityWirelessSnfc Mt-Ev
628-220Lumen/Level 3LandlineSnfc Cntrl
628-221CenturyLinkLandlineSnfc Cntrl
628-222OnvoyLandlineSnfc Cntrl
628-223Teleport Communications AmericaLandlineSnfc Cntrl
628-224AT&T MobilityWirelessSnfc Mt-Ev
628-225Verizon WirelessWirelessSnfc Cntrl
628-226AT&T MobilityWirelessBelvedere
628-227Bandwidth.comLandlineSnfc Mt-Ev
628-228AT&T (Pacific Bell)LandlineSnfc Cntrl
628-229OnvoyLandlinePointreyes
628-230Verizon WirelessWirelessSnfc Cntrl
628-231Teleport Communications AmericaLandlineSnfc Cntrl
628-232Peerless Network Of CaliforniaLandlineInverness
628-233AT&T MobilityWirelessSnfc Cntrl
628-234U.S. TelepacificLandlineSan Rafael
628-235Lumen/Level 3LandlineSnfc Cntrl
628-236T-MobileWirelessNovato
628-237T-MobileWirelessSausalito
628-238Peerless Network Of CaliforniaLandlineIgnacio
628-239Bandwidth.comLandlineSnfc Junpr
628-240Metro by T-MobileWirelessSan Rafael
628-241T-MobileWirelessSnfc Junpr
628-242AT&T (Pacific Bell)LandlineSnfc Cntrl
628-243OnvoyLandlineSan Rafael
628-244Peerless Network Of CaliforniaLandlineBelvedere
628-245OnvoyLandlineMillvalley
628-246Bandwidth.comLandlineSnfc Cntrl
628-247Teleport Communications AmericaLandlineSnfc Cntrl
628-248Teleport Communications AmericaLandlineSnfc Mt-Ev
628-249Verizon WirelessWirelessSnfc Cntrl
628-250Verizon WirelessWirelessSnfc Junpr
628-251Peerless Network Of CaliforniaLandlineSnfc Cntrl
628-252T-MobileWirelessCortemadra
628-253Bandwidth.comLandlineSan Rafael
628-254Bandwidth.comLandlineSausalito
628-255Verizon WirelessWirelessSnfc Cntrl
628-256Sonic TelecomLandlineSnfc Mt-Ev
628-257Race TelecommunicationsLandlineMillvalley
628-258T-MobileWirelessNicasio
628-259AT&T MobilityWirelessIgnacio
628-260Teleport Communications AmericaLandlineSnfc Cntrl
628-261Terra Nova TelecomLandlineSausalito
628-262Exiant CommunicationsLandlineBelvedere
628-263MCI/VerizonWirelessSnfc Cntrl
628-264T-MobileWirelessSnfc Cntrl
628-265Bandwidth.comLandlineInverness
628-266Bandwidth.comLandlineCortemadra
628-267Teleport Communications AmericaLandlineSnfc Cntrl
628-268Lumen/Level 3LandlineSnfc Cntrl
628-269T-MobileWirelessSan Rafael
628-270Sonic TelecomLandlineSnfc Mt-Ev
628-271SpectrumLandlineSnfc Cntrl
628-272OnvoyLandlinePointreyes
628-273Lumen/Level 3LandlineSnfc Cntrl
628-274Lumen/Level 3LandlineSnfc Cntrl
628-275Lumen/Level 3LandlineSnfc Cntrl
628-276Whitesky CommunicationsLandlineSnfc Cntrl
628-277TelnyxLandlineSan Rafael
628-278AT&T MobilityWirelessSnfc Mt-Ev
628-279Bandwidth.comLandlineSausalito
628-280Sonic TelecomLandlineSnfc Mt-Ev
628-281NusoLandlineSnfc Cntrl
628-282AT&TLandlineSnfc Junpr
628-283T-MobileWirelessSnfc Mt-Ev
628-284Paetec ItelLandlineSnfc Cntrl
628-285OnvoyLandlineSan Rafael
628-286Wide VoiceLandlineSnfc Mt-Ev
628-287Five9LandlineSnfc Cntrl
628-288FractelLandlineMillvalley
628-289Five9LandlineSnfc Cntrl
628-290T-MobileWirelessSnfc Junpr
628-291AT&T MobilityWirelessMillvalley
628-292CommioLandlineBelvedere
628-293CommioLandlineNicasio
628-294AT&T MobilityWirelessNovato
628-295OnvoyLandlineSan Rafael
628-296OnvoyLandlineSnfc Mt-Ev
628-297T-MobileWirelessSnfc Mt-Ev
628-298T-MobileWirelessSnfc Junpr
628-299FractelLandlineSnfc Junpr
628-300OnvoyLandlineSnfc Cntrl
628-301T-MobileWirelessNovato
628-302T-MobileWirelessCortemadra
628-303OnvoyLandlineSnfc Cntrl
628-304T-MobileWirelessSnfc Junpr
628-305T-MobileWirelessSan Rafael
628-306T-MobileWirelessSnfc Cntrl
628-307AT&T MobilityWirelessIgnacio
628-308T-MobileWirelessSnfc Mt-Ev
628-309T-MobileWirelessSnfc Cntrl
628-310T-MobileWirelessBelvedere
628-311Multiple Ocn ListingLandline
628-312T-MobileWirelessSnfc Cntrl
628-313T-MobileWirelessSan Rafael
628-314ShelcommLandlineSan Rafael
628-315T-MobileWirelessBelvedere
628-316AT&T MobilityWirelessSnfc Cntrl
628-317AT&T MobilityWirelessSnfc Mt-Ev
628-318AT&T MobilityWirelessSnfc Mt-Ev
628-319AT&T MobilityWirelessSnfc Junpr
628-320SpectrumLandlineSnfc Mt-Ev
628-321Teleport Communications AmericaLandlineSnfc Cntrl
628-322Teleport Communications AmericaLandlineSnfc Cntrl
628-323Teleport Communications AmericaLandlineSnfc Cntrl
628-324Teleport Communications AmericaLandlineSnfc Cntrl
628-325Teleport Communications AmericaLandlineSnfc Cntrl
628-326Teleport Communications AmericaLandlineSnfc Cntrl
628-327OnvoyLandlineSan Rafael
628-328Teleport Communications AmericaLandlineSnfc Cntrl
628-329T-MobileWirelessSausalito
628-333OnvoyLandlineSnfc Cntrl
628-335Teleport Communications AmericaLandlineSnfc Cntrl
628-336FractelLandlineSan Rafael
628-338OnvoyLandlineSnfc Mt-Ev
628-345FractelLandlinePointreyes
628-348FractelLandlineBelvedere
628-356FractelLandlineNicasio
628-358T-MobileWirelessSnfc Cntrl
628-363Verizon WirelessWirelessSnfc Junpr
628-377FractelLandlineIgnacio
628-386FractelLandlineCortemadra
628-388FractelLandlineInverness
628-399FractelLandlineSnfc Mt-Ev
628-400OnvoyLandlineSnfc Cntrl
628-411Multiple Ocn ListingLandline
628-415Landline
628-432FractelLandlineSnfc Mt-Ev
628-433Bandwidth.comLandlineIgnacio
628-444OnvoyLandlineSnfc Cntrl
628-465FractelLandlineSausalito
628-466OnvoyLandlineSnfc Cntrl
628-468Skye TelecomLandlineSnfc Cntrl
628-477FractelLandlineMillvalley
628-488FractelLandlineSnfc Cntrl
628-500OnvoyLandlineSan Rafael
628-502Verizon WirelessWirelessSnfc Cntrl
628-511Multiple Ocn ListingLandline
628-529FractelLandlineSnfc Junpr
628-555Multiple Ocn ListingLandlineDir Asst
628-561Peerless Network Of CaliforniaLandlineStnsn-Blns
628-577FractelLandlineNicasio
628-587FractelLandlineNovato
628-588FractelLandlineSnfc Cntrl
628-600OnvoyLandlineSnfc Cntrl
628-611Multiple Ocn ListingLandline
628-626OnvoyLandlineSnfc Cntrl
628-628FractelLandlineSnfc Cntrl
628-629Hd CarrierLandlineSnfc Cntrl
628-652Teleport Communications AmericaLandlineSnfc Cntrl
628-666OnvoyLandlineIgnacio
628-667FractelLandlineSan Rafael
628-677FractelLandlineMillvalley
628-682OnvoyLandlineNovato
628-688FractelLandlineSnfc Cntrl
628-699FractelLandlineSausalito
628-700Landline
628-711Multiple Ocn ListingLandline
628-724FractelLandlineBelvedere
628-726Hd CarrierLandlineSnfc Cntrl
628-732FractelLandlineSnfc Junpr
628-754Teleport Communications AmericaLandlineSnfc Mt-Ev
628-758FractelLandlineSnfc Mt-Ev
628-766FractelLandlineStnsn-Blns
628-777OnvoyLandlineSnfc Mt-Ev
628-786FractelLandlineSnfc Junpr
628-788FractelLandlineSnfc Mt-Ev
628-789Leap TelecomLandlineSnfc Cntrl
628-800OnvoyLandlineSnfc Cntrl
628-811Multiple Ocn ListingLandline
628-842FractelLandlineCortemadra
628-866FractelLandlineBelvedere
628-867CommioLandlineSnfc Cntrl
628-877OnvoyLandlineCortemadra
628-888OnvoyLandlineSan Rafael
628-895RclecLandlineSnfc Cntrl
628-899Peerless Network Of CaliforniaLandlineSnfc Mt-Ev
628-900OnvoyLandlineSnfc Cntrl
628-911Multiple Ocn ListingLandline
628-946FractelLandlineSnfc Cntrl
628-950Landline
628-958Landline
628-959Landline
628-976Landline
628-977FractelLandlineSnfc Mt-Ev
628-997OnvoyLandlineSnfc Cntrl
628-998WavenationLandlineSnfc Cntrl
628-999OnvoyLandlineSnfc Cntrl

All 40 area codes in California

628209213310323341350357369408415424442510530559562619626650657661669707714738747760805818820831837840858909916925949951

About Area Code 628

Area code 628 popped up in 2015 as an overlay for the San Francisco area, and it's all about keeping up with the endless demand for phone numbers in this ever-growing part of California. Back in the day, the original 415 code had been handling calls for the Bay Area since the 1940s, but by the 2010s, folks were snapping up numbers left and right—think startups popping up in SoMa, tech giants expanding, and a population that's always on the move. So, 628 stepped in to share the load without splitting things up, meaning if you live in San Francisco or places like Corte Madera and San Rafael, you might have a 415 or a 628 number, but you're still in the same boat. This code covers a mix of urban buzz and chill suburbs, from the fog-kissed streets of the city to the wooded hills of Mill Valley and Novato. It's tied to the Pacific Time Zone, so you're dealing with that UTC-8 offset, which keeps everything in sync with the rest of the West Coast. What makes 628 stand out? It's a sign of how fast California's tech scene has exploded—San Francisco wasn't just adding residents; it was adding connections. Picture this: entrepreneurs in Fairfax brainstorming the next big app, while artists in Larkspur chat with galleries across the country. Without 628, we'd have run out of ways to connect, and that's kept the conversations flowing in a region where innovation meets the Pacific Ocean every day. It's not just a code; it's a lifeline for a place that's always looking forward.

⚠ Scam & Spam Alert for 628

If you're in the 628 area, you might get calls that seem off, and it's smart to stay cautious with phone scams. For instance, IRS scams are common here, where someone pretends to be from the government demanding immediate payment for taxes you supposedly owe. Then there's the auto warranty racket, with callers pushing extended coverage for your car that you never signed up for, or Medicare fraud hitting older folks in places like San Francisco and San Rafael. Don't forget utility scams, where they'll claim you're behind on bills and threaten to cut off your service. These tricks often play on urgency to trick you into sharing personal info or sending money. Remember, legitimate organizations rarely ask for payments over the phone or via gift cards. One simple tip: Always hang up and verify directly with the company using a number from their official website before responding. That way, you can avoid the hassle and keep your info safe.

Local Snapshot

San Francisco's population hovers around 870,000 folks, making it a dense spot full of energy. Tech and finance drive the economy here, with companies like Google and Apple pulling in talent from everywhere. The area's famous for its iconic landmarks, like the Golden Gate Bridge that lights up the bay. Here's a fun twist: Despite the high-tech vibe, San Francisco has one of the oldest cable car systems in the world, still clanging through the hills every day.

Frequently Asked Questions

Where is area code 628?
Area code 628 serves San Francisco and surrounding communities in California, including Corte Madera, Fairfax, Larkspur, Mill Valley, Novato and 5 more. It is in the Pacific time zone.
What cities are in area code 628?
Area code 628 covers 10 cities in California: Corte Madera, Fairfax, Larkspur, Mill Valley, Novato, San Anselmo, San Francisco, San Rafael, Sausalito, Tiburon
What time zone is 628?
Area code 628 is in the Pacific time zone (UTC-8).
When was area code 628 created?
Area code 628 was established in 2015 as an overlay to provide additional numbers for the region.
Is 628 a legitimate area code?
Yes, 628 is a valid, active area code assigned to San Francisco, California. However, scammers can spoof any area code, so receiving a call from 628 doesn't guarantee the caller is actually in this area.

Why was the 628 area code introduced in 2015 for San Francisco?

The 628 area code was added as an overlay to the existing 415 code to handle the growing need for phone numbers in San Francisco due to population increases and business expansion. This change supported the region's development without disrupting current services. San Francisco's role as a major urban center made this overlay necessary for ongoing communication needs.

What outdoor activities are popular in the cities served by the 628 area code?

Cities like Mill Valley and Novato in the 628 area code offer hiking and biking trails in places such as Mount Tamalpais. These areas provide access to redwood forests and coastal paths that attract locals and visitors. The Pacific Timezone allows for year-round enjoyment of these activities with mild weather.

How does the 628 area code relate to San Francisco's public transportation?

The 628 area code covers San Francisco, where the Muni system and BART provide extensive public transit options for residents with this code. This setup helps commuters travel efficiently between San Francisco and nearby cities like Corte Madera. The overlay ensures that as the population grows, more people can stay connected while using these transit services.

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