Phone Prefix
(331) 307-XXXX
IL • LOMBARD
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Carrier Information
NANPA
State
IL
Region
MW
Rate Center
LOMBARD
Assigned To
ONVOY, LLC
OCN
224C
Status
AS
Date Assigned
Jul 30, 2015
Number Range
First Number
(331) 307-0000
Last Number
(331) 307-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
16 reports
16
Total FCC + FTC DNC complaints for numbers in this prefix
Top 15 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (331) 307-0645 3313070645 | 2 |
| 2 | (331) 307-0150 3313070150 | 1 |
| 3 | (331) 307-0330 3313070330 | 1 |
| 4 | (331) 307-2078 3313072078 | 1 |
| 5 | (331) 307-2858 3313072858 | 1 |
| 6 | (331) 307-2949 3313072949 | 1 |
| 7 | (331) 307-3141 3313073141 | 1 |
| 8 | (331) 307-6502 3313076502 | 1 |
| 9 | (331) 307-6864 3313076864 | 1 |
| 10 | (331) 307-7642 3313077642 | 1 |
| 11 | (331) 307-7650 3313077650 | 1 |
| 12 | (331) 307-9106 3313079106 | 1 |
| 13 | (331) 307-9213 3313079213 | 1 |
| 14 | (331) 307-0147 3313070147 | 1 |
| 15 | (331) 307-9364 3313079364 | 1 |
About This Prefix
Phone numbers starting with (331) 307 are part of the North American Numbering Plan (NANP). The first three digits (331) represent the Area Code (NPA), and the next three digits (307) represent the Central Office Code (NXX) or exchange.
- NPA (331) - Numbering Plan Area, identifies the geographic region
- NXX (307) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)