Phone Prefix
(331) 257-XXXX
IL • AURORA
Search Number in This Prefix
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Carrier Information
NANPA
State
IL
Region
MW
Rate Center
AURORA
Assigned To
PEERLESS NETWORK OF ILLINOIS, LLC - IL
OCN
063E
Status
AS
Date Assigned
Mar 16, 2020
Number Range
First Number
(331) 257-0000
Last Number
(331) 257-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
15 reports
15
Total FCC + FTC DNC complaints for numbers in this prefix
Top 15 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (331) 257-0438 3312570438 | 1 |
| 2 | (331) 257-7013 3312577013 | 1 |
| 3 | (331) 257-7019 3312577019 | 1 |
| 4 | (331) 257-7141 3312577141 | 1 |
| 5 | (331) 257-7149 3312577149 | 1 |
| 6 | (331) 257-7161 3312577161 | 1 |
| 7 | (331) 257-7470 3312577470 | 1 |
| 8 | (331) 257-7585 3312577585 | 1 |
| 9 | (331) 257-7697 3312577697 | 1 |
| 10 | (331) 257-7730 3312577730 | 1 |
| 11 | (331) 257-7761 3312577761 | 1 |
| 12 | (331) 257-7762 3312577762 | 1 |
| 13 | (331) 257-7900 3312577900 | 1 |
| 14 | (331) 257-7923 3312577923 | 1 |
| 15 | (331) 257-7931 3312577931 | 1 |
About This Prefix
Phone numbers starting with (331) 257 are part of the North American Numbering Plan (NANP). The first three digits (331) represent the Area Code (NPA), and the next three digits (257) represent the Central Office Code (NXX) or exchange.
- NPA (331) - Numbering Plan Area, identifies the geographic region
- NXX (257) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)