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La Mesa, CA Area Codes

La Mesa, California (population 59,914) uses area codes 619 and 858.

Area code619
Area code858
Time zonePacific
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La MesaSan DiegoChula VistaEl CajonSanteeNational CityLa PresaSpring ValleyLemon GroveImperial BeachRancho San DiegoWinter GardensLakesideLa Mesa
La Mesa and nearby cities in area code 619

Carriers with La Mesa numbers

69 prefixes are assigned to the La Mesa exchange: 25% mobile, 30% VoIP and cable, 45% landline.

CarrierPrefixes
AT&T (Pacific Bell)19
T-Mobile8
Comcast (Xfinity)6
Onvoy (Sinch)6
Verizon Business (MCImetro)5
AT&T Mobility5
Tpx Communications4
Lumen (Level 3)3

Area codes used in La Mesa

Area codePrefixes serving La MesaMain carriers in this code
61961AT&T (Pacific Bell), AT&T Mobility, T-Mobile
8588AT&T (Pacific Bell), AT&T Mobility, T-Mobile

La Mesa phone number prefixes

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

Nearby cities in area code 619

Questions

What is the area code for La Mesa, CA?
La Mesa uses 2 area codes: 619 and 858. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
What time zone is La Mesa in?
La Mesa is in the Pacific time zone.