Phone Prefix
(406) 604-XXXX
MT • GREATFALLS
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Carrier Information
NANPA
State
MT
Region
WE
Rate Center
GREATFALLS
Assigned To
ONVOY, LLC - MT
OCN
453F
Status
AS
Date Assigned
Jan 10, 2019
Number Range
First Number
(406) 604-0000
Last Number
(406) 604-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
20 reports
20
Total FCC + FTC DNC complaints for numbers in this prefix
Top 18 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (406) 604-0270 4066040270 | 2 |
| 2 | (406) 604-0271 4066040271 | 1 |
| 3 | (406) 604-0281 4066040281 | 1 |
| 4 | (406) 604-0283 4066040283 | 1 |
| 5 | (406) 604-0500 4066040500 | 1 |
| 6 | (406) 604-0508 4066040508 | 1 |
| 7 | (406) 604-0525 4066040525 | 1 |
| 8 | (406) 604-1039 4066041039 | 1 |
| 9 | (406) 604-1429 4066041429 | 1 |
| 10 | (406) 604-1512 4066041512 | 1 |
| 11 | (406) 604-1639 4066041639 | 1 |
| 12 | (406) 604-1673 4066041673 | 1 |
| 13 | (406) 604-1905 4066041905 | 1 |
| 14 | (406) 604-2250 4066042250 | 1 |
| 15 | (406) 604-8078 4066048078 | 1 |
| 16 | (406) 604-8226 4066048226 | 1 |
| 17 | (406) 604-8266 4066048266 | 1 |
| 18 | (406) 604-9155 4066049155 | 1 |
About This Prefix
Phone numbers starting with (406) 604 are part of the North American Numbering Plan (NANP). The first three digits (406) represent the Area Code (NPA), and the next three digits (604) represent the Central Office Code (NXX) or exchange.
- NPA (406) - Numbering Plan Area, identifies the geographic region
- NXX (604) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)