(603) 207-7537

2 FTC complaints between May 15, 2026 and May 25, 2026.

Both FTC complaints are about calls in May 2026.

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 medical and prescription offers, against 12% of the 27,278 FTC complaints about all numbers in area code 603.

Complaint categories chosen by FTC complainants:

• Medical & prescriptions 1 · 50%
• Not specified / other 1 · 50%

The number's block is assigned to Onvoy, LLC in Derry, NH.

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

Derry, NH, 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.

Area code 603: 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 (603) 207-7537?

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 Onvoy, LLC in Derry, NH (NANPA, Nov 3, 2026); numbers can move between carriers, so the caller's provider may differ.

Is (603) 207-7537 a scam?

Canadial rates it low risk, from 2 complaints, latest May 25, 2026.

Is (603) 207-7537 a debt collector or collection agency?

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

Should I call (603) 207-7537 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 (603) 207-7537 been reported?

2 complaints to the U.S. FTC's Do Not Call registry between May 15, 2026 and May 25, 2026.

What do callers from (603) 207-7537 say?

1 of its 2 FTC complaints (50%) is about medical and prescription offers, against 12% of the 27,278 FTC complaints about all numbers in area code 603.