Phone Prefix
(406) 821-XXXX
MT • DARBY
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Carrier Information
NANPA
State
MT
Region
WE
Rate Center
DARBY
Assigned To
QWEST CORPORATION
OCN
9636
Status
RT
Number Range
First Number
(406) 821-0000
Last Number
(406) 821-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
10 reports
10
Total FCC + FTC DNC complaints for numbers in this prefix
Top 10 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (406) 821-0497 4068210497 | 1 |
| 2 | (406) 821-2707 4068212707 | 1 |
| 3 | (406) 821-4857 4068214857 | 1 |
| 4 | (406) 821-6310 4068216310 | 1 |
| 5 | (406) 821-6401 4068216401 | 1 |
| 6 | (406) 821-6647 4068216647 | 1 |
| 7 | (406) 821-7267 4068217267 | 1 |
| 8 | (406) 821-7815 4068217815 | 1 |
| 9 | (406) 821-7899 4068217899 | 1 |
| 10 | (406) 821-8053 4068218053 | 1 |
About This Prefix
Phone numbers starting with (406) 821 are part of the North American Numbering Plan (NANP). The first three digits (406) represent the Area Code (NPA), and the next three digits (821) represent the Central Office Code (NXX) or exchange.
- NPA (406) - Numbering Plan Area, identifies the geographic region
- NXX (821) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)