Phone Prefix
(815) 231-XXXX
IL • ROCKFORD
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Carrier Information
NANPA
State
IL
Region
MW
Rate Center
ROCKFORD
Assigned To
ILLINOIS BELL TEL CO
OCN
9329
Status
RT
Number Range
First Number
(815) 231-0000
Last Number
(815) 231-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
12 reports
12
Total FCC + FTC DNC complaints for numbers in this prefix
Top 12 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (815) 231-1140 8152311140 | 1 |
| 2 | (815) 231-1741 8152311741 | 1 |
| 3 | (815) 231-1769 8152311769 | 1 |
| 4 | (815) 231-2711 8152312711 | 1 |
| 5 | (815) 231-3034 8152313034 | 1 |
| 6 | (815) 231-7090 8152317090 | 1 |
| 7 | (815) 231-7452 8152317452 | 1 |
| 8 | (815) 231-7656 8152317656 | 1 |
| 9 | (815) 231-8424 8152318424 | 1 |
| 10 | (815) 231-8743 8152318743 | 1 |
| 11 | (815) 231-8879 8152318879 | 1 |
| 12 | (815) 231-8961 8152318961 | 1 |
About This Prefix
Phone numbers starting with (815) 231 are part of the North American Numbering Plan (NANP). The first three digits (815) represent the Area Code (NPA), and the next three digits (231) represent the Central Office Code (NXX) or exchange.
- NPA (815) - Numbering Plan Area, identifies the geographic region
- NXX (231) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)