(650) 353-3974

4 FTC complaints between Sep 7, 2023 and Apr 2, 2025.

The FTC complaints came in 3 of the 20 months from Sep 2023 to Apr 2025; the busiest was Apr 2025, with 2 of 4.

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

4 of its 4 FTC complaints (100%) are about medical and prescription offers, against 4% of the 26,373 FTC complaints about all numbers in area code 650.

Complaint categories chosen by FTC complainants:

• Medical & prescriptions 4 · 100%

The number's block is assigned to Level 3 Communications, LLC in Palo Alto, CA.

Time of day of 4 calls; most often the 10 a.m. hour (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 of the number block

Palo Alto, CA, USA

Block assigned to

Level 3 Communications, 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.

None of 4 complainants have area code 650, the number's own. The calls reached people elsewhere, so this isn't a local caller to them.

Area code 650: where it is, time zone, spam calls →

• 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.

Who called me from (650) 353-3974?

No complaint names the caller; FTC complainants most often said the calls were about medical and prescription offers. The number is in a block assigned to Level 3 Communications, LLC in Palo Alto, CA (NANPA, Nov 3, 2026); numbers can move between carriers, so the caller's provider may differ.

Is (650) 353-3974 a scam?

Canadial rates it medium risk, from 4 complaints, latest Apr 2, 2025, 100% robocalls.

Is (650) 353-3974 a debt collector or collection agency?

Nothing says it is: none of its 4 complaints describe debt collection.

Should I call (650) 353-3974 back?

No. Calling back can confirm that your line is answered. If the caller claimed to be a company or agency you deal with, contact it on a number you find yourself.

How many times has (650) 353-3974 been reported?

4 complaints to the U.S. FTC's Do Not Call registry between Sep 7, 2023 and Apr 2, 2025.

What do callers from (650) 353-3974 say?

4 of its 4 FTC complaints (100%) are about medical and prescription offers, against 4% of the 26,373 FTC complaints about all numbers in area code 650.

When does (650) 353-3974 call?

In FTC complaints, the most common time was the 10 a.m. hour (2 of 4 calls with a time); the most common day was Tuesday (2 of 4).