“Trying to sell SAT study course. It’s a SCAM! You will get 2 cds and no study materials. Takes about a month to get refund if you are lucky!”
510-500-9991 – caller information and user reviews
This number belongs to the 510 area code. Browse more numbers from this region in the area code directory. Browse numbers starting with 510-500
Phone number 510-500-9991 has 5 user reviews. The clearest classification is Unknown (5 of 5 reviews).
510-500-9991 appears to be a landline number linked to Oakland, CA.
The prefix is associated with XO CALIFORNIA.
This phone number has been searched 608 times and has 5 user reviews.
What users say about this caller
User reviews for 510-500-9991 do not yet point to one clear caller type.
Information about 510-500-9991
- Search activity: 608 searches
- Reviews: 5 reviews
- Last activity date: Apr 28, 2026
- Area code: 510
- Line type: Landline
- Prefix location: Oakland, CA
- Carrier / operator: XO CALIFORNIA
- Top category: Unknown (5 reviews, 100%)
Examples from user reviews
Here are representative review excerpts for 510-500-9991. Each excerpt comes from a distinct approved comment.
User reviews for 510-500-9991
Trying to sell SAT study course. It’s a SCAM! You will get 2 cds and no study materials. Takes about a month to get refund if you are lucky!
Asked for patent. Said student had registered for SAT. Btw- SAT are cancelled throughout state if CA. I told them let me get my son, they hung up.
Asked for my child's name then hung up.
Askex for the parent of my daughter and then hung up
Asking for parents of (daughters name). The Hung up
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FAQ
What do user reviews say about 510-500-9991?
There are 5 user reviews for 510-500-9991. The strongest reporting trend describes this caller as unknown (5 reviews, 100% of categorised reviews). Read the reviews section for more detail.
Is 510-500-9991 considered safe or suspicious?
The answer depends on the reviews shown on this page. Review the comments, the call type distribution, and any recurring themes before deciding how to treat future calls from this number.
What should I do if 510-500-9991 keeps calling?
If the calls are unwanted, block the number, enable spam protection on your phone, and report suspicious activity to your carrier or local consumer protection authority. You can also add your own review on this page to help other users.
How to block 510-500-9991
On iPhone
Open the Phone app, go to Recents, tap the info icon next to the number, then choose Block this Caller.
On Android
Open the Phone app, go to recent calls, tap the number, then choose Block or Report spam, depending on your device.