Phone Prefix
(312) 479-XXXX
IL • CHICGOZN01
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Carrier Information
NANPA
State
IL
Region
MW
Rate Center
CHICGOZN01
Assigned To
T-MOBILE USA, INC.
OCN
6529
Status
AS
Date Assigned
Aug 18, 2004
Number Range
First Number
(312) 479-0000
Last Number
(312) 479-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
8 reports
8
Total FCC + FTC DNC complaints for numbers in this prefix
Top 8 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (312) 479-1472 3124791472 | 1 |
| 2 | (312) 479-2691 3124792691 | 1 |
| 3 | (312) 479-4629 3124794629 | 1 |
| 4 | (312) 479-5751 3124795751 | 1 |
| 5 | (312) 479-6967 3124796967 | 1 |
| 6 | (312) 479-7743 3124797743 | 1 |
| 7 | (312) 479-8235 3124798235 | 1 |
| 8 | (312) 479-8985 3124798985 | 1 |
About This Prefix
Phone numbers starting with (312) 479 are part of the North American Numbering Plan (NANP). The first three digits (312) represent the Area Code (NPA), and the next three digits (479) represent the Central Office Code (NXX) or exchange.
- NPA (312) - Numbering Plan Area, identifies the geographic region
- NXX (479) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)