Numbers starting with 650-260 in San Mateo, CA
This page collects user-reported phone numbers starting with 650-260, a prefix associated with San Mateo, CA and listed under AT&T LOCAL. Recent activity is still visible for this prefix, with the latest report activity recorded on Apr 23, 2026. Recent activity is spread across multiple entries, including 1-650-260-2470, 1-650-260-5274, and 1-650-260-4000.
Reported numbers
3
Reports in last 7 days
0
Reports in last 30 days
0
Last activity
Apr 23, 2026
Location
San Mateo, CA
Number type
Landline
What stands out about this prefix
This prefix currently has 3 reported numbers on who-called.us. The latest visible activity for this prefix was recorded on Apr 23, 2026.
Among classified reports, ssn scam is the most common label for this prefix. Other recurring categories include unknown, which suggests the reports are not all describing exactly the same kind of call.
The reference data for this prefix points to San Mateo, CA. In the available metadata, this range is labeled as landline. The listed carrier for this prefix is AT&T LOCAL. Because this prefix belongs to area code 650, it can also be compared with broader reporting patterns across that area code.
Common themes in recent reports
Looking across recent comments for this prefix, recurring phrases include caller, melanie kriese scam, kriese scam caller, and melanie kriese. These themes come from the language users repeatedly use when describing calls tied to numbers starting with 650-260.
Caller
11
Melanie Kriese Scam
10
Kriese Scam Caller
10
Melanie Kriese
10
Kriese Scam
10
Scam Caller
10
Melanie
10
Kriese
10
How this prefix is being reported
These categories come from classified user reports tied to numbers starting with 650-260. They help show whether reports cluster around one kind of call or are spread across multiple patterns.
Type
Reports
Share
SSN scam
10
83.3%
Unknown
2
16.7%
Recent comment examples
The comments below are recent examples from reports tied to numbers starting with 650-260. They add real wording and context that category labels alone cannot show.
Recently reported numbers
The list below shows numbers from this prefix with recent activity. Entries such as 1-650-260-2470, 1-650-260-5274, and 1-650-260-4000 help illustrate where the reporting is currently concentrated.
1-650-260-5274
Caller Said he was with Google Security Team. Told him he was interrupting a luncheon and call me back. No call back from him. Called three times in five minutes so I thought is was an emergency. Not!!
1-650-260-2470
Melanie Kriese is SCAM caller
1-650-260-4000
This number 6502604000 called me yesterday when I was driving. Then it called me again in the morning but I was at work and couldn't answer it. I was trying to call back several times but the line was engaged. I'm sure t…