Area code · Caribbean
Area code 664 — Montserrat
Montserrat · outside the U.S. · in service since July 1, 1996
Area code 664 is in Montserrat, outside the United States: a call there is international (why it looks like a U.S. number).
Local time in Montserrat
Spam reports from Sep 23 – Oct 22, 2026
Too few reports for a level #443 of 461
1 FTC complaint
Consumer reports, not verified by the FTC.
See the reports- Time zoneAtlantic Standard Time (no daylight saving)
- Calls thereInternational
- Unwanted call?Block & report
Spam call reports about 664 numbers
Complaints by week
Sep 11 – Oct 22, 2026Show as table
| Week starting | Complaints |
|---|---|
| Sep 7 (3 days) | 0 |
| Sep 14 | 0 |
| Sep 21 | 1 |
| Sep 28 | 0 |
| Oct 5 | 0 |
| Oct 12 | 0 |
| Oct 19 (4 days) | 0 |
Compared with all codes
- Robocalls
- unknown
- Callers with the same code
- 0 of 1
- Rank by complaints
- #443of 461 · bottom tenth (fewest complaints)
- FCC complaints, Oct 2025 – Sep 2026
- 0
What the calls were about
Sep 11 – Oct 22, 2026
| Subject | Complaints | |
|---|---|---|
| Other | 1 |
Where the people who complained live
Fewer than 5 complaints in the archive: not shown.
October 2026 (partial) report · most reported
Consumer reports, not verified by the FTC · source
Source: FTC Do Not Call complaints created Sep 11 – Oct 22, 2026. They are reported by consumers and are not verified by the FTC; caller ID can be spoofed (how we count).
Source: FCC Consumer Complaints data, unwanted calls filed Oct 1, 2025 – Sep 30, 2026, by caller ID; not verified by the FCC.
Area code 664 location
NANPA record
- Location
- Montserrat
- Assigned by NANPA
- April 22, 1996
- Created from
- 809
- Local dialing
- 7 digits (NANPA: 7D)
Source: NANPA, NPA database of Oct 24, 2026.
Questions about area code 664
What area code is 664?
The area code of Montserrat, outside the United States, in service since July 1, 1996.
Where is 664 area code, and what time zone is it in?
Montserrat; Atlantic Standard Time (no daylight saving).
Why am I getting spam calls from 664?
1 FTC complaint from Sep 23 – Oct 22, 2026 (not verified by the FTC; caller ID can be spoofed).