(603) 584-4401
Concord, NH
(603) 584-4401 is likely an unwanted sales call: 3 FTC complaints, 0% recorded messages, most often about energy, solar and utilities (33%).
- No new complaints since Nov 27, 2023 (FTC data through Nov 13, 2026).
- More FTC complaints than 96% of the 22,324 numbers with FTC complaints in area code 603.
- Only 3 numbers in the 603-584 block have more complaints, of 212 there with FTC complaints.
Complaint history
3 FTC complaints between Jun 23, 2022 and Nov 27, 2023.
The FTC complaints came in 3 of the 18 months from Jun 2022 to Nov 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
1 of its 3 FTC complaints (33%) is about energy, solar and utilities; across area code 603 that isn't one of the 8 commonest call types (each of those is at least 1% of its FTC complaints).
Complaint categories chosen by FTC complainants:
- Not specified / other 2 · 67%
- Energy, solar & utilities 1 · 33%
Who called
The number's block is assigned to Onvoy, LLC in Concord, NH.
Is it a debt collector?
Nothing says it is: none of its 3 complaints describe debt collection.
Nearby numbers in 603-584
212 numbers in 603-584 have 260 FTC complaints between them (57% robocalls), 3 of them about (603) 584-4401. The commonest categories in the block: Dropped call or no message (15%), Reducing your debt (credit cards, mortgage, student loans) (11%).
The closest reported numbers on either side of (603) 584-4401, in number order.
When the calls came
Time of day of 3 calls:
Day of the week of 3 calls; most often Monday (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
- Concord, 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.
FTC complainants were in Michigan (1), New Hampshire (1) and Texas (1).
Where FTC complainants were located (U.S. states):
- Michigan 1 · 33%
- New Hampshire 1 · 33%
- Texas 1 · 33%
Complainants' cities:
Baytown, TX (1) · New Hampton, NH (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 (603) 584-4401
- Who called me from (603) 584-4401?
- No complaint names the caller; FTC complainants most often said the calls were about energy, solar and utilities. The number is in a block assigned to Onvoy, LLC in Concord, NH (NANPA, Nov 3, 2026); numbers can move between carriers, so the caller's provider may differ.
- Is (603) 584-4401 a scam?
- Canadial rates it low risk, from 3 complaints, latest Nov 27, 2023, 0% robocalls.
- Is (603) 584-4401 a debt collector or collection agency?
- Nothing says it is: none of its 3 complaints describe debt collection.
- Should I call (603) 584-4401 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) 584-4401 been reported?
- 3 complaints to the U.S. FTC's Do Not Call registry between Jun 23, 2022 and Nov 27, 2023.
- What do callers from (603) 584-4401 say?
- 1 of its 3 FTC complaints (33%) is about energy, solar and utilities; across area code 603 that isn't one of the 8 commonest call types (each of those is at least 1% of its FTC complaints).
- When does (603) 584-4401 call?
- In FTC complaints, the most common day was Monday (2 of 3).
Data updated: FTC complaints through Nov 13, 2026; numbering records as of Nov 3, 2026; community reports live. How this page is built.