Home › California › Calimesa
Calimesa, CA Area Codes
Calimesa, California (population 11,111) uses area codes 909 and 840.
Carriers with Calimesa numbers
16 prefixes are assigned to the Calimesa exchange: 38% mobile, 31% VoIP and cable, 31% landline.
| Carrier | Prefixes |
|---|---|
| T-Mobile | 5 |
| Frontier | 4 |
| Bandwidth | 2 |
| Peerless Network | 1 |
| Onvoy (Sinch) | 1 |
| AT&T (Pacific Bell) | 1 |
| AT&T Mobility | 1 |
| Lumen (Level 3) | 1 |
Area codes used in Calimesa
| Area code | Prefixes serving Calimesa | Main carriers in this code |
|---|---|---|
| 909 | 13 | Frontier, T-Mobile, AT&T Mobility |
| 840 | 3 | T-Mobile, Fractel, Onvoy (Sinch) |
Calimesa phone number prefixes
Numbers starting with these first six digits were originally assigned to the Calimesa exchange.
909-316Bandwidth909-372Peerless Network909-446Frontier909-500Onvoy (Sinch)909-504T-Mobile909-570AT&T (Pacific Bell)909-768T-Mobile909-769AT&T Mobility909-790Frontier909-795Frontier909-797Frontier909-845T-Mobile909-918Lumen (Level 3)840-219T-Mobile840-223Bandwidth840-253T-Mobile
Nearby cities in area code 909
- San Bernardino
- Fontana
- Ontario
- Rancho Cucamonga
- Pomona
- Rialto
- Chino
- Upland
- Chino Hills
- Redlands
- Eastvale
- Highland
Questions
- What is the area code for Calimesa, CA?
- Calimesa 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 Calimesa in?
- Calimesa is in the Pacific time zone.