Exchange · Oakland, CA
(510) 291-xxxx
Every number from 510-291-0000 to 510-291-9999. NANPA records the exchange as assigned to Onvoy (Sinch) for Oakland, CA. Robocall and scam operations often use many numbers from one exchange, so if one number here is a shady call, its neighbors deserve a second look.
Reported numbers starting 510-291
| Number | Verdict | What it is | Reports | Complaints |
|---|---|---|---|---|
| (510) 291-7005 | Shady call | Scam or spam text | 0 | 6 |
About the 510-291 exchange
510-291 is an exchange (the first six digits of a phone number) in area code 510, which covers California. NANPA, which runs the North American Numbering Plan, assigned it to Onvoy (Sinch) for the Oakland, CA rate center. Numbers from this carrier are usually VoIP / internet phone lines.
People keep their number when they move or switch carrier, so this is where the number was first assigned, not where the caller is today. Local time for 510-291 numbers is usually Pacific time. Scammers can also fake (spoof) any number, so a call that shows a 510-291 number may not come from Onvoy (Sinch) at all.