Phone Prefix
(312) 506-XXXX
IL • CHICGOZN01
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Carrier Information
NANPA
State
IL
Region
MW
Rate Center
CHICGOZN01
Assigned To
FIRST COMMUNICATIONS, LLC
OCN
460K
Status
AS
Date Assigned
May 24, 2004
Number Range
First Number
(312) 506-0000
Last Number
(312) 506-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
23 reports
23
Total FCC + FTC DNC complaints for numbers in this prefix
Top 19 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (312) 506-0825 3125060825 | 2 |
| 2 | (312) 506-3125 3125063125 | 2 |
| 3 | (312) 506-5609 3125065609 | 2 |
| 4 | (312) 506-9791 3125069791 | 2 |
| 5 | (312) 506-1238 3125061238 | 1 |
| 6 | (312) 506-1257 3125061257 | 1 |
| 7 | (312) 506-1273 3125061273 | 1 |
| 8 | (312) 506-1730 3125061730 | 1 |
| 9 | (312) 506-2709 3125062709 | 1 |
| 10 | (312) 506-8608 3125068608 | 1 |
| 11 | (312) 506-3680 3125063680 | 1 |
| 12 | (312) 506-5083 3125065083 | 1 |
| 13 | (312) 506-9976 3125069976 | 1 |
| 14 | (312) 506-5794 3125065794 | 1 |
| 15 | (312) 506-6829 3125066829 | 1 |
| 16 | (312) 506-8310 3125068310 | 1 |
| 17 | (312) 506-0933 3125060933 | 1 |
| 18 | (312) 506-0940 3125060940 | 1 |
| 19 | (312) 506-1216 3125061216 | 1 |
About This Prefix
Phone numbers starting with (312) 506 are part of the North American Numbering Plan (NANP). The first three digits (312) represent the Area Code (NPA), and the next three digits (506) represent the Central Office Code (NXX) or exchange.
- NPA (312) - Numbering Plan Area, identifies the geographic region
- NXX (506) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)