Phone Prefix
(831) 257-XXXX
CA • APTOS
Search Number in This Prefix
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Carrier Information
NANPA
State
CA
Region
WC
Rate Center
APTOS
Assigned To
ONVOY, LLC - CA
OCN
649C
Status
AS
Date Assigned
Oct 11, 2016
Number Range
First Number
(831) 257-0000
Last Number
(831) 257-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
43 reports
43
Total FCC + FTC DNC complaints for numbers in this prefix
Top 39 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (831) 257-3209 8312573209 | 2 |
| 2 | (831) 257-2504 8312572504 | 2 |
| 3 | (831) 257-0040 8312570040 | 2 |
| 4 | (831) 257-3260 8312573260 | 2 |
| 5 | (831) 257-0855 8312570855 | 1 |
| 6 | (831) 257-1017 8312571017 | 1 |
| 7 | (831) 257-1079 8312571079 | 1 |
| 8 | (831) 257-1096 8312571096 | 1 |
| 9 | (831) 257-1746 8312571746 | 1 |
| 10 | (831) 257-1753 8312571753 | 1 |
| 11 | (831) 257-1823 8312571823 | 1 |
| 12 | (831) 257-1825 8312571825 | 1 |
| 13 | (831) 257-2283 8312572283 | 1 |
| 14 | (831) 257-2458 8312572458 | 1 |
| 15 | (831) 257-2531 8312572531 | 1 |
| 16 | (831) 257-2612 8312572612 | 1 |
| 17 | (831) 257-2669 8312572669 | 1 |
| 18 | (831) 257-2696 8312572696 | 1 |
| 19 | (831) 257-2851 8312572851 | 1 |
| 20 | (831) 257-3211 8312573211 | 1 |
| 21 | (831) 257-3215 8312573215 | 1 |
| 22 | (831) 257-3220 8312573220 | 1 |
| 23 | (831) 257-3223 8312573223 | 1 |
| 24 | (831) 257-3229 8312573229 | 1 |
| 25 | (831) 257-3252 8312573252 | 1 |
| 26 | (831) 257-3254 8312573254 | 1 |
| 27 | (831) 257-3259 8312573259 | 1 |
| 28 | (831) 257-3269 8312573269 | 1 |
| 29 | (831) 257-3867 8312573867 | 1 |
| 30 | (831) 257-3870 8312573870 | 1 |
| 31 | (831) 257-3883 8312573883 | 1 |
| 32 | (831) 257-4702 8312574702 | 1 |
| 33 | (831) 257-6500 8312576500 | 1 |
| 34 | (831) 257-8758 8312578758 | 1 |
| 35 | (831) 257-0035 8312570035 | 1 |
| 36 | (831) 257-8762 8312578762 | 1 |
| 37 | (831) 257-0041 8312570041 | 1 |
| 38 | (831) 257-0077 8312570077 | 1 |
| 39 | (831) 257-0404 8312570404 | 1 |
About This Prefix
Phone numbers starting with (831) 257 are part of the North American Numbering Plan (NANP). The first three digits (831) represent the Area Code (NPA), and the next three digits (257) represent the Central Office Code (NXX) or exchange.
- NPA (831) - Numbering Plan Area, identifies the geographic region
- NXX (257) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)