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Clearlake, CA Area Codes
Clearlake, California (population 16,893) uses area codes 707 and 369.
Clearlake has no telephone exchange of its own in NANPA records; it is served by the Lower Lake exchange about 5.7 km away.
Carriers with Clearlake numbers
13 prefixes are assigned to the Lower Lake exchange: 38% mobile, 38% VoIP and cable, 23% landline.
| Carrier | Prefixes |
|---|---|
| AT&T Mobility | 2 |
| Lumen (Level 3) | 2 |
| Verizon Wireless | 2 |
| AT&T (Pacific Bell) | 2 |
| UScellular | 1 |
| Ip Horizon | 1 |
| Verizon Business (MCImetro) | 1 |
| Commio | 1 |
Area codes used in Clearlake
| Area code | Prefixes serving Clearlake | Main carriers in this code |
|---|---|---|
| 707 | 10 | AT&T (Pacific Bell), Onvoy (Sinch), AT&T Mobility |
| 369 | 3 | AT&T Mobility, Onvoy (Sinch), T-Mobile |
Clearlake phone number prefixes
Numbers starting with these first six digits were originally assigned to the Lower Lake exchange.
707-295AT&T Mobility707-350UScellular707-461Ip Horizon707-692Verizon Business (MCImetro)707-701Lumen (Level 3)707-850Verizon Wireless707-905Verizon Wireless707-993Lumen (Level 3)707-994AT&T (Pacific Bell)707-995AT&T (Pacific Bell)369-215Commio369-237AT&T Mobility369-243Onvoy (Sinch)
Nearby cities in area code 707
Questions
- What is the area code for Clearlake, CA?
- Clearlake uses 2 area codes: 707 and 369. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
- What time zone is Clearlake in?
- Clearlake is in the Pacific time zone.