(650) 770-9964
Los Altos, CA
(650) 770-9964 has 2 FTC complaints, mostly about impersonating a government agency, business or relative.
- No new complaints since Apr 2, 2025 (FTC data through Nov 13, 2026).
- More FTC complaints than 87% of the 20,239 numbers with FTC complaints in area code 650.
- Only 3 numbers in the 650-770 block have more complaints, of 37 there with FTC complaints.
Complaint history
2 FTC complaints on Apr 2, 2025.
Both FTC complaints are about calls in Apr 2025.
FTC complaints are filed by consumers with the U.S. Federal Trade Commission's Do Not Call registry; they aren't verified by the FTC or by us.
What callers claimed
1 of its 2 FTC complaints (50%) is about impersonating a government agency, business or relative, against 14% of the 26,373 FTC complaints about all numbers in area code 650.
Complaint categories chosen by FTC complainants:
- Calls pretending to be government, businesses, or family and friends 1 · 50%
- Not specified / other 1 · 50%
Who called
The number's block is assigned to Bandwidth.com CLEC, LLC in Los Altos, CA.
Is it a debt collector?
Nothing says it is: none of its 2 complaints describe debt collection.
Nearby numbers in 650-770
37 numbers in 650-770 have 64 FTC complaints between them (41% robocalls), 2 of them about (650) 770-9964. The commonest categories in the block: Dropped call or no message (25%), Reducing your debt (credit cards, mortgage, student loans) (9%).
The closest reported numbers on either side of (650) 770-9964, in number order.
All reported numbers in 650-770 →When the calls came
Time of day of 2 calls; most often the 2 p.m. hour (2):
Day of the week of 2 calls; most often Wednesday (2):
The date and time of the call as complainants entered them on the FTC form; the time zone isn't recorded. Times entered as exactly midnight or noon are left out (they're usually the form's default).
Location
- Location of the number block
- Los Altos, CA, USA
- Block assigned to
- Bandwidth.com CLEC, LLC
From the North American Numbering Plan Administrator (Nov 3, 2026). This is who the number block was assigned to; numbers can be moved between carriers, and caller IDs can be faked.
Both FTC complainants were in California. Statewide, California ranks #26 of the 50 states and DC for Do Not Call complaints per resident: 283,769 in the last 12 months, 721 per 100,000 people. Spam calls in California.
Where FTC complainants were located (U.S. states):
- California 2 · 100%
Complainants' cities:
Laguna Hills, CA (1) · San Francisco, CA (1)
As typed on the FTC form, with spelling variants merged; complaints without a city aren't counted.
Searches on Canadial
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Recent community reports
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What to do
- Don't share personal or banking details, or pay anyone, on a call you didn't expect. Hang up and call the organization back on a number you find yourself.
- Block it from your recent calls (iPhone: ⓘ, then “Block this Caller”; Android: long-press, then “Block”).
- Report fraud to the Canadian Anti-Fraud Centre (1-888-495-8501).
- Report telemarketing if you're registered and still got the call: to the National Do Not Call List.
- A collector calling? How to check a collection agency in your province.
- Report fraud to the FTC.
- Report telemarketing if you're registered and still got the call: to the National Do Not Call Registry.
- A collector calling? See the FTC's guide to your rights.
- Report fraud: in the U.S. to the FTC; in Canada to the Canadian Anti-Fraud Centre (1-888-495-8501).
- Report telemarketing if you're registered and still got the call: in the U.S. to the National Do Not Call Registry; in Canada to the National Do Not Call List.
- A collector calling? In the U.S., see the FTC's guide to your rights; in Canada, how to check a collection agency in your province.
Questions about (650) 770-9964
- Who called me from (650) 770-9964?
- No complaint names the caller; FTC complainants most often said the calls were about impersonating a government agency, business or relative. The number is in a block assigned to Bandwidth.com CLEC, LLC in Los Altos, CA (NANPA, Nov 3, 2026); numbers can move between carriers, so the caller's provider may differ.
- Is (650) 770-9964 a scam?
- Canadial rates it low risk, from 2 complaints, latest Apr 2, 2025.
- Is (650) 770-9964 a debt collector or collection agency?
- Nothing says it is: none of its 2 complaints describe debt collection.
- Should I call (650) 770-9964 back?
- Be careful. If you don't recognize it, let it go to voicemail: a legitimate caller will leave a message, and you can reach any real organization on a number you look up yourself.
- How many times has (650) 770-9964 been reported?
- 2 complaints to the U.S. FTC's Do Not Call registry on Apr 2, 2025.
- What do callers from (650) 770-9964 say?
- 1 of its 2 FTC complaints (50%) is about impersonating a government agency, business or relative, against 14% of the 26,373 FTC complaints about all numbers in area code 650.
- When does (650) 770-9964 call?
- In FTC complaints, the most common time was the 2 p.m. hour (2 of 2 calls with a time); the most common day was Wednesday (2 of 2).
Data updated: FTC complaints through Nov 13, 2026; numbering records as of Nov 3, 2026; community reports live. How this page is built.