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Mountain House, CA Area Codes

Mountain House, California (population 25,315) uses area codes 209 and 350.

Mountain House has no telephone exchange of its own in NANPA records; it is served by the Tracy exchange about 9.5 km away.

Area codes used in Mountain House

Mountain House phone number prefixes

Numbers starting with these first six digits were originally assigned to the Tracy exchange.

• 209-207 Verizon Wireless
• 209-221 Verizon Business (MCImetro)
• 209-229 Tpx Communications
• 209-237 Verizon Business (MCImetro)
• 209-278 T-Mobile
• 209-319 Bandwidth
• 209-321 T-Mobile
• 209-346 Metropcs
• 209-362 Verizon Wireless
• 209-407 Onvoy (Sinch)
• 209-597 Verizon Wireless
• 209-627 Ip Horizon
• 209-637 AT&T Mobility
• 209-640 T-Mobile
• 209-650 Lumen (Level 3)
• 209-654 Onvoy (Sinch)
• 209-666 Onvoy (Sinch)
• 209-699 Fractel
• 209-740 T-Mobile
• 209-814 Verizon Wireless
• 209-820 Tpx Communications
• 209-830 AT&T (Pacific Bell)
• 209-831 AT&T (Pacific Bell)
• 209-832 AT&T (Pacific Bell)
• 209-833 AT&T (Pacific Bell)
• 209-834 AT&T (Pacific Bell)
• 209-835 AT&T (Pacific Bell)
• 209-836 AT&T (Pacific Bell)
• 209-839 AT&T (Pacific Bell)
• 209-855 Metropcs
• 209-879 Comcast (Xfinity)
• 209-914 AT&T Mobility
• 350-227 Onvoy (Sinch)
• 350-250 Onvoy (Sinch)
• 350-254 AT&T Mobility
• 350-900 Onvoy (Sinch)

Nearby cities in area code 209

• Stockton
• Modesto
• Tracy
• Merced
• Manteca
• Turlock
• Lodi
• Los Banos
• Ceres
• Lathrop
• Atwater
• Galt

Questions

What is the area code for Mountain House, CA?

Mountain House uses 2 area codes: 209 and 350. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.

What time zone is Mountain House in?

Mountain House is in the Pacific time zone.