(520) 351-4600

4 FTC complaints between Feb 24, 2025 and Jan 26, 2026.

The FTC complaints came in 3 of the 12 months from Feb 2025 to Jan 2026; the busiest was Feb 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 impersonating a government agency, business or relative, against 7% of the 51,645 FTC complaints about all numbers in area code 520.

Complaint categories chosen by FTC complainants:

• Calls pretending to be government, businesses, or family and friends 4 · 100%

The number's block is assigned to Level 3 Telecom of Arizona, LLC in Tucson, AZ.

Time of day of 4 calls; most often the 11 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

Tucson, AZ, USA

Block assigned to

Level 3 Telecom of Arizona, 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.

3 of 4 complainants (75%) have area code 520, the number's own. Scam callers often show a local-looking number (“neighbour spoofing”); a local business calling nearby customers looks the same.

Area code 520: 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 (520) 351-4600?

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 Level 3 Telecom of Arizona, LLC in Tucson, AZ (NANPA, Nov 3, 2026); numbers can move between carriers, so the caller's provider may differ.

Is (520) 351-4600 a scam?

Canadial rates it medium risk, from 4 complaints, latest Jan 26, 2026, 0% robocalls.

Is (520) 351-4600 a debt collector or collection agency?

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

Should I call (520) 351-4600 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 (520) 351-4600 been reported?

4 complaints to the U.S. FTC's Do Not Call registry between Feb 24, 2025 and Jan 26, 2026.

What do callers from (520) 351-4600 say?

4 of its 4 FTC complaints (100%) are about impersonating a government agency, business or relative, against 7% of the 51,645 FTC complaints about all numbers in area code 520.

When does (520) 351-4600 call?

In FTC complaints, the most common time was the 11 a.m. hour (2 of 4 calls with a time); the most common day was Monday (2 of 4).