Phone Prefix
(312) 778-XXXX
IL • CHICGOZN01
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Carrier Information
NANPA
State
IL
Region
MW
Rate Center
CHICGOZN01
Assigned To
NEW CINGULAR WIRELESS PCS, LLC - IL
OCN
6534
Status
AS
Date Assigned
Jun 17, 2015
Number Range
First Number
(312) 778-0000
Last Number
(312) 778-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
20 reports
20
Total FCC + FTC DNC complaints for numbers in this prefix
Top 20 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (312) 778-3592 3127783592 | 1 |
| 2 | (312) 778-5290 3127785290 | 1 |
| 3 | (312) 778-5328 3127785328 | 1 |
| 4 | (312) 778-5439 3127785439 | 1 |
| 5 | (312) 778-5516 3127785516 | 1 |
| 6 | (312) 778-5608 3127785608 | 1 |
| 7 | (312) 778-5663 3127785663 | 1 |
| 8 | (312) 778-6138 3127786138 | 1 |
| 9 | (312) 778-6253 3127786253 | 1 |
| 10 | (312) 778-6340 3127786340 | 1 |
| 11 | (312) 778-6390 3127786390 | 1 |
| 12 | (312) 778-7433 3127787433 | 1 |
| 13 | (312) 778-7447 3127787447 | 1 |
| 14 | (312) 778-7805 3127787805 | 1 |
| 15 | (312) 778-8239 3127788239 | 1 |
| 16 | (312) 778-8489 3127788489 | 1 |
| 17 | (312) 778-8855 3127788855 | 1 |
| 18 | (312) 778-8900 3127788900 | 1 |
| 19 | (312) 778-9083 3127789083 | 1 |
| 20 | (312) 778-9889 3127789889 | 1 |
About This Prefix
Phone numbers starting with (312) 778 are part of the North American Numbering Plan (NANP). The first three digits (312) represent the Area Code (NPA), and the next three digits (778) represent the Central Office Code (NXX) or exchange.
- NPA (312) - Numbering Plan Area, identifies the geographic region
- NXX (778) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)