Phone number 5104919945 area code and prefix assignment information:
| Country | |
|---|---|
| Location | CALIFORNIA |
| Rate Center | FRNK GRNLF |
| Carrier | TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
31 consumers have filed FTC complaints against 510-491-9945. Most complaints (93%) identified the call as a robocall or recorded message. The most recent complaint was filed on April 28, 2026. All 31 complaints were reported from California.
Based on area code 510, phone number is located in California, United States. The 491 prefix was originally assigned to the FRNK GRNLF rate center, serving Fremont/Newark and its surrounding areas.
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Threatening call "Because we havent heard from you were giving you a final chance before closing out your account"