Phone Prefix
(312) 285-XXXX
IL • CHICGOZN01
Search Number in This Prefix
Enter the last 4 digits to search for a specific number
Carrier Information
NANPA
State
IL
Region
MW
Rate Center
CHICGOZN01
Assigned To
LEVEL 3 COMMUNICATIONS, LLC - IL
OCN
6115
Status
AS
Date Assigned
Nov 13, 2006
Number Range
First Number
(312) 285-0000
Last Number
(312) 285-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
25 reports
25
Total FCC + FTC DNC complaints for numbers in this prefix
Top 23 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (312) 285-0407 3122850407 | 3 |
| 2 | (312) 285-0169 3122850169 | 1 |
| 3 | (312) 285-0212 3122850212 | 1 |
| 4 | (312) 285-0259 3122850259 | 1 |
| 5 | (312) 285-0269 3122850269 | 1 |
| 6 | (312) 285-0637 3122850637 | 1 |
| 7 | (312) 285-0737 3122850737 | 1 |
| 8 | (312) 285-2349 3122852349 | 1 |
| 9 | (312) 285-2573 3122852573 | 1 |
| 10 | (312) 285-2767 3122852767 | 1 |
| 11 | (312) 285-2813 3122852813 | 1 |
| 12 | (312) 285-2943 3122852943 | 1 |
| 13 | (312) 285-3480 3122853480 | 1 |
| 14 | (312) 285-3758 3122853758 | 1 |
| 15 | (312) 285-5328 3122855328 | 1 |
| 16 | (312) 285-5382 3122855382 | 1 |
| 17 | (312) 285-5611 3122855611 | 1 |
| 18 | (312) 285-6600 3122856600 | 1 |
| 19 | (312) 285-6669 3122856669 | 1 |
| 20 | (312) 285-8168 3122858168 | 1 |
| 21 | (312) 285-8805 3122858805 | 1 |
| 22 | (312) 285-0151 3122850151 | 1 |
| 23 | (312) 285-9024 3122859024 | 1 |
About This Prefix
Phone numbers starting with (312) 285 are part of the North American Numbering Plan (NANP). The first three digits (312) represent the Area Code (NPA), and the next three digits (285) represent the Central Office Code (NXX) or exchange.
- NPA (312) - Numbering Plan Area, identifies the geographic region
- NXX (285) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)