San Francisco, California
California · Pacific (UTC-8) · — · 10 cities
Cities Served by Area Code 628 (10 cities)
Additional Details
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.
| Prefix | Carrier | Type | Rate Center |
|---|---|---|---|
| 628-200 | Onvoy | Landline | Snfc Junpr |
| 628-201 | Onvoy | Landline | Snfc Cntrl |
| 628-202 | T-Mobile | Wireless | Belvedere |
| 628-203 | Onvoy | Landline | Stnsn-Blns |
| 628-204 | T-Mobile | Wireless | Nicasio |
| 628-205 | Verizon Wireless | Wireless | Snfc Cntrl |
| 628-206 | AT&T (Pacific Bell) | Landline | Snfc Cntrl |
| 628-207 | Bandwidth.com | Landline | Snfc Mt-Ev |
| 628-208 | Vonage | Landline | Snfc Cntrl |
| 628-209 | Telnyx | Landline | Novato |
| 628-210 | Peerless Network Of California | Landline | Inverness |
| 628-211 | Multiple Ocn Listing | Landline | |
| 628-212 | Bandwidth.com | Landline | Cortemadra |
| 628-213 | T-Mobile | Wireless | Snfc Cntrl |
| 628-214 | Peerless Network Of California | Landline | Novato |
| 628-215 | Bandwidth.com | Landline | Millvalley |
| 628-216 | Bandwidth.com | Landline | Pointreyes |
| 628-217 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-218 | MCI/Verizon | Wireless | Snfc Cntrl |
| 628-219 | AT&T Mobility | Wireless | Snfc Mt-Ev |
| 628-220 | Lumen/Level 3 | Landline | Snfc Cntrl |
| 628-221 | CenturyLink | Landline | Snfc Cntrl |
| 628-222 | Onvoy | Landline | Snfc Cntrl |
| 628-223 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-224 | AT&T Mobility | Wireless | Snfc Mt-Ev |
| 628-225 | Verizon Wireless | Wireless | Snfc Cntrl |
| 628-226 | AT&T Mobility | Wireless | Belvedere |
| 628-227 | Bandwidth.com | Landline | Snfc Mt-Ev |
| 628-228 | AT&T (Pacific Bell) | Landline | Snfc Cntrl |
| 628-229 | Onvoy | Landline | Pointreyes |
| 628-230 | Verizon Wireless | Wireless | Snfc Cntrl |
| 628-231 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-232 | Peerless Network Of California | Landline | Inverness |
| 628-233 | AT&T Mobility | Wireless | Snfc Cntrl |
| 628-234 | U.S. Telepacific | Landline | San Rafael |
| 628-235 | Lumen/Level 3 | Landline | Snfc Cntrl |
| 628-236 | T-Mobile | Wireless | Novato |
| 628-237 | T-Mobile | Wireless | Sausalito |
| 628-238 | Peerless Network Of California | Landline | Ignacio |
| 628-239 | Bandwidth.com | Landline | Snfc Junpr |
| 628-240 | Metro by T-Mobile | Wireless | San Rafael |
| 628-241 | T-Mobile | Wireless | Snfc Junpr |
| 628-242 | AT&T (Pacific Bell) | Landline | Snfc Cntrl |
| 628-243 | Onvoy | Landline | San Rafael |
| 628-244 | Peerless Network Of California | Landline | Belvedere |
| 628-245 | Onvoy | Landline | Millvalley |
| 628-246 | Bandwidth.com | Landline | Snfc Cntrl |
| 628-247 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-248 | Teleport Communications America | Landline | Snfc Mt-Ev |
| 628-249 | Verizon Wireless | Wireless | Snfc Cntrl |
| 628-250 | Verizon Wireless | Wireless | Snfc Junpr |
| 628-251 | Peerless Network Of California | Landline | Snfc Cntrl |
| 628-252 | T-Mobile | Wireless | Cortemadra |
| 628-253 | Bandwidth.com | Landline | San Rafael |
| 628-254 | Bandwidth.com | Landline | Sausalito |
| 628-255 | Verizon Wireless | Wireless | Snfc Cntrl |
| 628-256 | Sonic Telecom | Landline | Snfc Mt-Ev |
| 628-257 | Race Telecommunications | Landline | Millvalley |
| 628-258 | T-Mobile | Wireless | Nicasio |
| 628-259 | AT&T Mobility | Wireless | Ignacio |
| 628-260 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-261 | Terra Nova Telecom | Landline | Sausalito |
| 628-262 | Exiant Communications | Landline | Belvedere |
| 628-263 | MCI/Verizon | Wireless | Snfc Cntrl |
| 628-264 | T-Mobile | Wireless | Snfc Cntrl |
| 628-265 | Bandwidth.com | Landline | Inverness |
| 628-266 | Bandwidth.com | Landline | Cortemadra |
| 628-267 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-268 | Lumen/Level 3 | Landline | Snfc Cntrl |
| 628-269 | T-Mobile | Wireless | San Rafael |
| 628-270 | Sonic Telecom | Landline | Snfc Mt-Ev |
| 628-271 | Spectrum | Landline | Snfc Cntrl |
| 628-272 | Onvoy | Landline | Pointreyes |
| 628-273 | Lumen/Level 3 | Landline | Snfc Cntrl |
| 628-274 | Lumen/Level 3 | Landline | Snfc Cntrl |
| 628-275 | Lumen/Level 3 | Landline | Snfc Cntrl |
| 628-276 | Whitesky Communications | Landline | Snfc Cntrl |
| 628-277 | Telnyx | Landline | San Rafael |
| 628-278 | AT&T Mobility | Wireless | Snfc Mt-Ev |
| 628-279 | Bandwidth.com | Landline | Sausalito |
| 628-280 | Sonic Telecom | Landline | Snfc Mt-Ev |
| 628-281 | Nuso | Landline | Snfc Cntrl |
| 628-282 | AT&T | Landline | Snfc Junpr |
| 628-283 | T-Mobile | Wireless | Snfc Mt-Ev |
| 628-284 | Paetec Itel | Landline | Snfc Cntrl |
| 628-285 | Onvoy | Landline | San Rafael |
| 628-286 | Wide Voice | Landline | Snfc Mt-Ev |
| 628-287 | Five9 | Landline | Snfc Cntrl |
| 628-288 | Fractel | Landline | Millvalley |
| 628-289 | Five9 | Landline | Snfc Cntrl |
| 628-290 | T-Mobile | Wireless | Snfc Junpr |
| 628-291 | AT&T Mobility | Wireless | Millvalley |
| 628-292 | Commio | Landline | Belvedere |
| 628-293 | Commio | Landline | Nicasio |
| 628-294 | AT&T Mobility | Wireless | Novato |
| 628-295 | Onvoy | Landline | San Rafael |
| 628-296 | Onvoy | Landline | Snfc Mt-Ev |
| 628-297 | T-Mobile | Wireless | Snfc Mt-Ev |
| 628-298 | T-Mobile | Wireless | Snfc Junpr |
| 628-299 | Fractel | Landline | Snfc Junpr |
| 628-300 | Onvoy | Landline | Snfc Cntrl |
| 628-301 | T-Mobile | Wireless | Novato |
| 628-302 | T-Mobile | Wireless | Cortemadra |
| 628-303 | Onvoy | Landline | Snfc Cntrl |
| 628-304 | T-Mobile | Wireless | Snfc Junpr |
| 628-305 | T-Mobile | Wireless | San Rafael |
| 628-306 | T-Mobile | Wireless | Snfc Cntrl |
| 628-307 | AT&T Mobility | Wireless | Ignacio |
| 628-308 | T-Mobile | Wireless | Snfc Mt-Ev |
| 628-309 | T-Mobile | Wireless | Snfc Cntrl |
| 628-310 | T-Mobile | Wireless | Belvedere |
| 628-311 | Multiple Ocn Listing | Landline | |
| 628-312 | T-Mobile | Wireless | Snfc Cntrl |
| 628-313 | T-Mobile | Wireless | San Rafael |
| 628-314 | Shelcomm | Landline | San Rafael |
| 628-315 | T-Mobile | Wireless | Belvedere |
| 628-316 | AT&T Mobility | Wireless | Snfc Cntrl |
| 628-317 | AT&T Mobility | Wireless | Snfc Mt-Ev |
| 628-318 | AT&T Mobility | Wireless | Snfc Mt-Ev |
| 628-319 | AT&T Mobility | Wireless | Snfc Junpr |
| 628-320 | Spectrum | Landline | Snfc Mt-Ev |
| 628-321 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-322 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-323 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-324 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-325 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-326 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-327 | Onvoy | Landline | San Rafael |
| 628-328 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-329 | T-Mobile | Wireless | Sausalito |
| 628-333 | Onvoy | Landline | Snfc Cntrl |
| 628-335 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-336 | Fractel | Landline | San Rafael |
| 628-338 | Onvoy | Landline | Snfc Mt-Ev |
| 628-345 | Fractel | Landline | Pointreyes |
| 628-348 | Fractel | Landline | Belvedere |
| 628-356 | Fractel | Landline | Nicasio |
| 628-358 | T-Mobile | Wireless | Snfc Cntrl |
| 628-363 | Verizon Wireless | Wireless | Snfc Junpr |
| 628-377 | Fractel | Landline | Ignacio |
| 628-386 | Fractel | Landline | Cortemadra |
| 628-388 | Fractel | Landline | Inverness |
| 628-399 | Fractel | Landline | Snfc Mt-Ev |
| 628-400 | Onvoy | Landline | Snfc Cntrl |
| 628-411 | Multiple Ocn Listing | Landline | |
| 628-415 | Landline | ||
| 628-432 | Fractel | Landline | Snfc Mt-Ev |
| 628-433 | Bandwidth.com | Landline | Ignacio |
| 628-444 | Onvoy | Landline | Snfc Cntrl |
| 628-465 | Fractel | Landline | Sausalito |
| 628-466 | Onvoy | Landline | Snfc Cntrl |
| 628-468 | Skye Telecom | Landline | Snfc Cntrl |
| 628-477 | Fractel | Landline | Millvalley |
| 628-488 | Fractel | Landline | Snfc Cntrl |
| 628-500 | Onvoy | Landline | San Rafael |
| 628-502 | Verizon Wireless | Wireless | Snfc Cntrl |
| 628-511 | Multiple Ocn Listing | Landline | |
| 628-529 | Fractel | Landline | Snfc Junpr |
| 628-555 | Multiple Ocn Listing | Landline | Dir Asst |
| 628-561 | Peerless Network Of California | Landline | Stnsn-Blns |
| 628-577 | Fractel | Landline | Nicasio |
| 628-587 | Fractel | Landline | Novato |
| 628-588 | Fractel | Landline | Snfc Cntrl |
| 628-600 | Onvoy | Landline | Snfc Cntrl |
| 628-611 | Multiple Ocn Listing | Landline | |
| 628-626 | Onvoy | Landline | Snfc Cntrl |
| 628-628 | Fractel | Landline | Snfc Cntrl |
| 628-629 | Hd Carrier | Landline | Snfc Cntrl |
| 628-652 | Teleport Communications America | Landline | Snfc Cntrl |
| 628-666 | Onvoy | Landline | Ignacio |
| 628-667 | Fractel | Landline | San Rafael |
| 628-677 | Fractel | Landline | Millvalley |
| 628-682 | Onvoy | Landline | Novato |
| 628-688 | Fractel | Landline | Snfc Cntrl |
| 628-699 | Fractel | Landline | Sausalito |
| 628-700 | Landline | ||
| 628-711 | Multiple Ocn Listing | Landline | |
| 628-724 | Fractel | Landline | Belvedere |
| 628-726 | Hd Carrier | Landline | Snfc Cntrl |
| 628-732 | Fractel | Landline | Snfc Junpr |
| 628-754 | Teleport Communications America | Landline | Snfc Mt-Ev |
| 628-758 | Fractel | Landline | Snfc Mt-Ev |
| 628-766 | Fractel | Landline | Stnsn-Blns |
| 628-777 | Onvoy | Landline | Snfc Mt-Ev |
| 628-786 | Fractel | Landline | Snfc Junpr |
| 628-788 | Fractel | Landline | Snfc Mt-Ev |
| 628-789 | Leap Telecom | Landline | Snfc Cntrl |
| 628-800 | Onvoy | Landline | Snfc Cntrl |
| 628-811 | Multiple Ocn Listing | Landline | |
| 628-842 | Fractel | Landline | Cortemadra |
| 628-866 | Fractel | Landline | Belvedere |
| 628-867 | Commio | Landline | Snfc Cntrl |
| 628-877 | Onvoy | Landline | Cortemadra |
| 628-888 | Onvoy | Landline | San Rafael |
| 628-895 | Rclec | Landline | Snfc Cntrl |
| 628-899 | Peerless Network Of California | Landline | Snfc Mt-Ev |
| 628-900 | Onvoy | Landline | Snfc Cntrl |
| 628-911 | Multiple Ocn Listing | Landline | |
| 628-946 | Fractel | Landline | Snfc Cntrl |
| 628-950 | Landline | ||
| 628-958 | Landline | ||
| 628-959 | Landline | ||
| 628-976 | Landline | ||
| 628-977 | Fractel | Landline | Snfc Mt-Ev |
| 628-997 | Onvoy | Landline | Snfc Cntrl |
| 628-998 | Wavenation | Landline | Snfc Cntrl |
| 628-999 | Onvoy | Landline | Snfc Cntrl |
All 40 area codes in California
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
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.