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(520) 688-3750

Casa Grande, AZ

Low risk

(520) 688-3750 has 2 FTC complaints, mostly about impersonating a government agency, business or relative.

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Did (520) 688-3750 call you?
2
FTC complaints
0
Community reports
Sep 7, 2023
Latest report

Complaint history

2 FTC complaints on Sep 7, 2023.

Both FTC complaints are about calls in Sep 2023.

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

2 of its 2 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 2 · 100%

Who called

The number's block is assigned to Onvoy, LLC in Casa Grande, AZ.

Is it a debt collector?

Nothing says it is: none of its 2 complaints describe debt collection.

Part of a group of similar numbers

(520) 688-3750 is one of 6 numbers in 520-688 first reported to the FTC for “Calls pretending to be government, businesses, or family and friends” calls between Sep 5, 2023 and Sep 7, 2023, 10 complaints in all; most from California (20%), Illinois (20%), Florida (10%).

Numbers from one block reported for the same thing within days of each other are rarely chance; they usually mean one operation cycling through numbers. How groups are found.

Nearby numbers in 520-688

328 numbers in 520-688 have 402 FTC complaints between them (47% robocalls), 2 of them about (520) 688-3750. The commonest categories in the block: Calls pretending to be government, businesses, or family and friends (20%), Dropped call or no message (17%).

The closest reported numbers on either side of (520) 688-3750, in number order.

All reported numbers in 520-688 →

When the calls came

Time of day of 2 calls:

12a 6a 12p 6p

Day of the week of 2 calls; most often Thursday (2):

Sun Mon Tue Wed Thu Fri Sat

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
Casa Grande, AZ, USA
Block assigned to
Onvoy, 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 Illinois. Statewide, Illinois ranks #11 of the 50 states and DC for Do Not Call complaints per resident: 116,978 in the last 12 months, 919.7 per 100,000 people. Spam calls in Illinois.

Where FTC complainants were located (U.S. states):

  • Illinois 2 · 100%

Area code 520: where it is, time zone, spam calls →

Searches on Canadial

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Answers from visitors, one per person per month (asked at the top of the page).

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Recent community reports

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What to do

Questions about (520) 688-3750

Who called me from (520) 688-3750?
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 Onvoy, LLC in Casa Grande, AZ (NANPA, Nov 3, 2026); numbers can move between carriers, so the caller's provider may differ. It's one of 6 numbers in the same block first reported for the same kind of call within days of each other, likely one operation.
Is (520) 688-3750 a scam?
Canadial rates it low risk, from 2 complaints, latest Sep 7, 2023.
Is (520) 688-3750 a debt collector or collection agency?
Nothing says it is: none of its 2 complaints describe debt collection.
Should I call (520) 688-3750 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 (520) 688-3750 been reported?
2 complaints to the U.S. FTC's Do Not Call registry on Sep 7, 2023.
What do callers from (520) 688-3750 say?
2 of its 2 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) 688-3750 call?
In FTC complaints, the most common day was Thursday (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.