What is the area code for Rancho Cucamonga, CA?

Rancho Cucamonga uses 2 area codes: 909 and 840. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.

What time zone is Rancho Cucamonga in?

Rancho Cucamonga is in the Pacific time zone.

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Rancho Cucamonga, CA Area Codes

Rancho Cucamonga, California (population 177,856) uses area codes 909 and 840.

Area code909

Area code840

Time zonePacific

Local time now…

Rancho Cucamonga has no telephone exchange of its own in NANPA records; it is served by the Upland exchange about 8.8 km away.

Rancho Cucamonga and nearby cities in area code 909

Carriers with Rancho Cucamonga numbers

77 prefixes are assigned to the Upland exchange: 29% mobile, 23% VoIP and cable, 48% landline.

Carrier	Prefixes
Frontier	27
AT&T Mobility	12
Lumen (Level 3)	6
Verizon Wireless	6
Onvoy (Sinch)	5
T-Mobile	4
Bandwidth	3
Charter Ip Enabled Services	3

Area codes used in Rancho Cucamonga

Area code	Prefixes serving Rancho Cucamonga	Main carriers in this code
909	70	Frontier, T-Mobile, AT&T Mobility
840	7	T-Mobile, Fractel, Onvoy (Sinch)

Rancho Cucamonga phone number prefixes

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

909-204 Lumen (Level 3)
909-243 Metropcs Networks
909-244 T-Mobile
909-256 Twc Ip Enabled Services
909-257 AT&T (Pacific Bell)
909-276 Verizon Wireless
909-285 Bandwidth
909-291 Tpx Communications
909-294 Lumen (Level 3)
909-296 AT&T Mobility
909-297 Lumen (Level 3)
909-303 Lumen (Level 3)
909-360 Lumen (CenturyLink)
909-367 Verizon Wireless
909-373 Tpx Communications
909-377 AT&T Mobility
909-404 Onvoy (Sinch)
909-466 Frontier
909-476 Frontier
909-477 Frontier
909-481 Frontier
909-483 Frontier
909-484 Frontier
909-493 Lumen (Level 3)
909-527 Onvoy (Sinch)
909-532 Verizon Wireless
909-552 AT&T Mobility
909-560 AT&T Mobility
909-579 Frontier
909-581 Frontier
909-608 Frontier
909-652 Charter Ip Enabled Services
909-660 Verizon Wireless
909-694 Verizon Business (MCImetro)
909-701 AT&T Mobility
909-719 AT&T Mobility
909-727 T-Mobile
909-736 Bandwidth
909-739 AT&T Mobility
909-755 Charter Ip Enabled Services
909-758 Frontier
909-767 Verizon Wireless
909-774 Charter Ip Enabled Services
909-776 AT&T Mobility
909-819 Bandwidth
909-828 AT&T Mobility
909-870 Onvoy (Sinch)
909-892 T-Mobile
909-908 AT&T Mobility
909-912 Lumen (Level 3)
909-919 AT&T (Pacific Bell)
909-920 Frontier
909-921 Frontier
909-926 AT&T Mobility
909-931 Frontier
909-932 Frontier
909-941 Frontier
909-942 Frontier
909-944 Frontier
909-945 Frontier
909-946 Frontier
909-948 Frontier
909-949 Frontier
909-960 AT&T Mobility
909-980 Frontier
909-981 Frontier
909-982 Frontier
909-985 Frontier
909-987 Frontier
909-989 Frontier
840-242 Onvoy (Sinch)
840-256 T-Mobile
840-276 Verizon Wireless
840-290 Onvoy (Sinch)
840-466 Ton80 Communications
840-800 Fractel
840-999 Terra Nova Telecom

Nearby cities in area code 909

Questions

What is the area code for Rancho Cucamonga, CA?: Rancho Cucamonga uses 2 area codes: 909 and 840. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
What time zone is Rancho Cucamonga in?: Rancho Cucamonga is in the Pacific time zone.