6503991800
Phone number 6503991800 area code and prefix assignment information:
| Country |  United States |
|---|---|
| Location | CALIFORNIA |
| Rate Center | REDWOOD CY |
| Carrier | O1 COMMUNICATIONS, INC. - CA |
Is 650-399-1800 a scam or spam call?
3 consumers reported phone number 650-399-1800 to the Federal Trade Commission. Callers did not flag this number as a robocall in any of the complaints. Reporting activity last occurred on June 12, 2026. All 3 complaints were reported from California. All complaints originated from Modesto.
Who called me from phone number +1 (650) 399-1800?
Based on area code 650, phone number is located in California, United States. The 399 prefix was originally assigned to the REDWOOD CY rate center, serving Redwood City and its surrounding areas.
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