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Claremont, CA Area Codes
Claremont, California (population 35,838) uses area codes 909 and 840.
Carriers with Claremont numbers
58 prefixes are assigned to the Claremont exchange: 17% mobile, 33% VoIP and cable, 50% landline.
| Carrier | Prefixes |
|---|---|
| Frontier | 20 |
| T-Mobile | 7 |
| Onvoy (Sinch) | 6 |
| Verizon Business (MCImetro) | 4 |
| Bandwidth | 4 |
| Verizon Wireless | 3 |
| Tpx Communications | 3 |
| AT&T (Teleport) | 3 |
Area codes used in Claremont
| Area code | Prefixes serving Claremont | Main carriers in this code |
|---|---|---|
| 909 | 50 | Frontier, T-Mobile, AT&T Mobility |
| 840 | 8 | T-Mobile, Fractel, Onvoy (Sinch) |
Claremont phone number prefixes
Numbers starting with these first six digits were originally assigned to the Claremont exchange.
909-207Spok909-267Lumen (Level 3)909-288Onvoy (Sinch)909-293Verizon Business (MCImetro)909-305Frontier909-344T-Mobile909-392Frontier909-394Frontier909-398Frontier909-399Frontier909-407Verizon Business (MCImetro)909-445Frontier909-447Frontier909-448Frontier909-450AT&T (Pacific Bell)909-451Verizon Business (MCImetro)909-480Frontier909-482Frontier909-506T-Mobile909-523Spok909-526Verizon Wireless909-541T-Mobile909-542Tpx Communications909-568Tpx Communications909-575AT&T (Teleport)909-592Frontier909-593Frontier909-596Frontier909-599Frontier909-603Frontier909-607AT&T (Teleport)909-621Frontier909-624Frontier909-625Frontier909-626Frontier909-656T-Mobile909-667Onvoy (Sinch)909-670Tpx Communications909-675Onvoy (Sinch)909-741T-Mobile909-753Verizon Business (MCImetro)909-788Fractel909-830Vonage909-833Bandwidth909-901Bandwidth909-905T-Mobile909-929Twc Ip Enabled Services909-962AT&T (Teleport)909-964T-Mobile909-971Frontier840-205Bandwidth840-208Bandwidth840-229Verizon Wireless840-236Onvoy (Sinch)840-277Verizon Wireless840-804Onvoy (Sinch)840-977Fractel840-997Onvoy (Sinch)
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 Claremont, CA?
- Claremont 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 Claremont in?
- Claremont is in the Pacific time zone.