Phone Prefix
(406) 503-XXXX
MT • BILLINGS
Search Number in This Prefix
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Carrier Information
NANPA
State
MT
Region
WE
Rate Center
BILLINGS
Assigned To
ONVOY, LLC - MT
OCN
453F
Status
AS
Date Assigned
Jul 21, 2023
Number Range
First Number
(406) 503-0000
Last Number
(406) 503-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
34 reports
34
Total FCC + FTC DNC complaints for numbers in this prefix
Top 26 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (406) 503-7413 4065037413 | 5 |
| 2 | (406) 503-3006 4065033006 | 2 |
| 3 | (406) 503-8973 4065038973 | 2 |
| 4 | (406) 503-0121 4065030121 | 2 |
| 5 | (406) 503-3695 4065033695 | 1 |
| 6 | (406) 503-3973 4065033973 | 1 |
| 7 | (406) 503-3974 4065033974 | 1 |
| 8 | (406) 503-7074 4065037074 | 1 |
| 9 | (406) 503-7075 4065037075 | 1 |
| 10 | (406) 503-7191 4065037191 | 1 |
| 11 | (406) 503-8405 4065038405 | 1 |
| 12 | (406) 503-8408 4065038408 | 1 |
| 13 | (406) 503-8520 4065038520 | 1 |
| 14 | (406) 503-8742 4065038742 | 1 |
| 15 | (406) 503-8972 4065038972 | 1 |
| 16 | (406) 503-8992 4065038992 | 1 |
| 17 | (406) 503-9170 4065039170 | 1 |
| 18 | (406) 503-9174 4065039174 | 1 |
| 19 | (406) 503-9524 4065039524 | 1 |
| 20 | (406) 503-9886 4065039886 | 1 |
| 21 | (406) 503-9903 4065039903 | 1 |
| 22 | (406) 503-9973 4065039973 | 1 |
| 23 | (406) 503-9998 4065039998 | 1 |
| 24 | (406) 503-0747 4065030747 | 1 |
| 25 | (406) 503-0758 4065030758 | 1 |
| 26 | (406) 503-0975 4065030975 | 1 |
About This Prefix
Phone numbers starting with (406) 503 are part of the North American Numbering Plan (NANP). The first three digits (406) represent the Area Code (NPA), and the next three digits (503) represent the Central Office Code (NXX) or exchange.
- NPA (406) - Numbering Plan Area, identifies the geographic region
- NXX (503) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)