Phone Prefix
(331) 203-XXXX
IL • AURORA
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Carrier Information
NANPA
State
IL
Region
MW
Rate Center
AURORA
Assigned To
T-MOBILE USA, INC.
OCN
6529
Status
AS
Date Assigned
Oct 14, 2011
Number Range
First Number
(331) 203-0000
Last Number
(331) 203-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
7 reports
7
Total FCC + FTC DNC complaints for numbers in this prefix
Top 5 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (331) 203-9148 3312039148 | 3 |
| 2 | (331) 203-8083 3312038083 | 1 |
| 3 | (331) 203-8282 3312038282 | 1 |
| 4 | (331) 203-8521 3312038521 | 1 |
| 5 | (331) 203-9080 3312039080 | 1 |
About This Prefix
Phone numbers starting with (331) 203 are part of the North American Numbering Plan (NANP). The first three digits (331) represent the Area Code (NPA), and the next three digits (203) represent the Central Office Code (NXX) or exchange.
- NPA (331) - Numbering Plan Area, identifies the geographic region
- NXX (203) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)