Phone Prefix
(312) 256-XXXX
IL • CHICGOZN01
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Carrier Information
NANPA
State
IL
Region
MW
Rate Center
CHICGOZN01
Assigned To
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
OCN
7229
Status
RT
Number Range
First Number
(312) 256-0000
Last Number
(312) 256-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
13 reports
13
Total FCC + FTC DNC complaints for numbers in this prefix
Top 12 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (312) 256-1882 3122561882 | 2 |
| 2 | (312) 256-1866 3122561866 | 1 |
| 3 | (312) 256-2385 3122562385 | 1 |
| 4 | (312) 256-2810 3122562810 | 1 |
| 5 | (312) 256-4664 3122564664 | 1 |
| 6 | (312) 256-5550 3122565550 | 1 |
| 7 | (312) 256-8411 3122568411 | 1 |
| 8 | (312) 256-8805 3122568805 | 1 |
| 9 | (312) 256-9627 3122569627 | 1 |
| 10 | (312) 256-9813 3122569813 | 1 |
| 11 | (312) 256-0255 3122560255 | 1 |
| 12 | (312) 256-9980 3122569980 | 1 |
About This Prefix
Phone numbers starting with (312) 256 are part of the North American Numbering Plan (NANP). The first three digits (312) represent the Area Code (NPA), and the next three digits (256) represent the Central Office Code (NXX) or exchange.
- NPA (312) - Numbering Plan Area, identifies the geographic region
- NXX (256) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)