What is the area code for South San Francisco, CA?

The area code for South San Francisco, California is 650.

What time zone is South San Francisco in?

South San Francisco is in the Pacific time zone.

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South San Francisco, CA Area Code

South San Francisco, California (population 64,941) uses area code 650.

Area code650

Time zonePacific

Local time now…

South San Francisco and nearby cities in area code 650

Carriers with South San Francisco numbers

89 prefixes are assigned to the South San Francisco exchange: 20% mobile, 29% VoIP and cable, 51% landline.

Carrier	Prefixes
AT&T (Pacific Bell)	34
T-Mobile	8
AT&T Mobility	8
Lumen (Level 3)	7
Verizon Business (MCImetro)	6
Onvoy (Sinch)	6
AT&T (Teleport)	4
Bandwidth	3

Area codes used in South San Francisco

Area code	Prefixes serving South San Francisco	Main carriers in this code
650	89	AT&T (Pacific Bell), AT&T Mobility, T-Mobile

South San Francisco phone number prefixes

Numbers starting with these first six digits were originally assigned to the South San Francisco exchange.

650-201 T-Mobile
650-205 Spok
650-219 T-Mobile
650-221 Shelcomm
650-225 AT&T (Pacific Bell)
650-228 Verizon Business (MCImetro)
650-238 Verizon Business (MCImetro)
650-243 Tpx Communications
650-244 AT&T (Pacific Bell)
650-246 AT&T (Pacific Bell)
650-255 AT&T Mobility
650-256 American Messaging Services
650-266 AT&T (Pacific Bell)
650-267 Lumen (Level 3)
650-270 T-Mobile
650-273 Astound Broadband
650-278 T-Mobile
650-291 Verizon Wireless
650-296 AT&T Mobility
650-303 AT&T Mobility
650-333 T-Mobile
650-351 Lumen (Level 3)
650-360 Onvoy (Sinch)
650-379 Verizon Business (MCImetro)
650-392 Lumen (Level 3)
650-410 Onvoy (Sinch)
650-416 Tpx Communications
650-438 AT&T Mobility
650-442 Bandwidth
650-452 At&T - Local
650-457 AT&T Mobility
650-467 AT&T (Pacific Bell)
650-491 Lumen (Level 3)
650-502 Bandwidth
650-515 Lumen (Level 3)
650-534 Verizon Business (MCImetro)
650-540 AT&T (Teleport)
650-553 AT&T (Pacific Bell)
650-580 AT&T Mobility
650-583 AT&T (Pacific Bell)
650-588 AT&T (Pacific Bell)
650-589 AT&T (Pacific Bell)
650-615 AT&T (Pacific Bell)
650-616 AT&T (Pacific Bell)
650-624 AT&T (Pacific Bell)
650-634 AT&T (Pacific Bell)
650-635 AT&T (Pacific Bell)
650-636 Verizon Business (MCImetro)
650-671 T-Mobile
650-676 Utility Telecom Group
650-677 Fractel
650-708 Onvoy (Sinch)
650-737 AT&T (Pacific Bell)
650-741 AT&T (Pacific Bell)
650-742 AT&T (Pacific Bell)
650-745 AT&T (Teleport)
650-754 AT&T (Pacific Bell)
650-760 AT&T (Teleport)
650-763 Lumen (Level 3)
650-784 T-Mobile
650-794 AT&T (Pacific Bell)
650-797 AT&T Mobility
650-808 AT&T (Pacific Bell)
650-821 AT&T (Teleport)
650-822 Onvoy (Sinch)
650-825 Verizon Business (MCImetro)
650-826 T-Mobile
650-827 AT&T (Pacific Bell)
650-829 AT&T (Pacific Bell)
650-834 Metropcs
650-835 Ip Horizon
650-837 AT&T (Pacific Bell)
650-866 AT&T (Pacific Bell)
650-869 AT&T (Pacific Bell)
650-870 Bandwidth
650-871 AT&T (Pacific Bell)
650-872 AT&T (Pacific Bell)
650-873 AT&T (Pacific Bell)
650-874 AT&T (Pacific Bell)
650-875 AT&T (Pacific Bell)
650-876 AT&T (Pacific Bell)
650-877 AT&T (Pacific Bell)
650-878 AT&T (Pacific Bell)
650-892 AT&T Mobility
650-910 Onvoy (Sinch)
650-922 Verizon Wireless
650-952 AT&T (Pacific Bell)
650-989 Lumen (Level 3)
650-990 Onvoy (Sinch)

Nearby cities in area code 650

Questions

What is the area code for South San Francisco, CA?: The area code for South San Francisco, California is 650.
What time zone is South San Francisco in?: South San Francisco is in the Pacific time zone.