Phone Prefix
(312) 858-XXXX
IL • CHICGOZN01
Search Number in This Prefix
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Carrier Information
NANPA
State
IL
Region
MW
Rate Center
CHICGOZN01
Assigned To
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
OCN
6333
Status
AS
Date Assigned
Feb 29, 2016
Number Range
First Number
(312) 858-0000
Last Number
(312) 858-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
31 reports
31
Total FCC + FTC DNC complaints for numbers in this prefix
Top 14 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (312) 858-3867 3128583867 | 18 |
| 2 | (312) 858-1216 3128581216 | 1 |
| 3 | (312) 858-1573 3128581573 | 1 |
| 4 | (312) 858-3638 3128583638 | 1 |
| 5 | (312) 858-3766 3128583766 | 1 |
| 6 | (312) 858-3897 3128583897 | 1 |
| 7 | (312) 858-4987 3128584987 | 1 |
| 8 | (312) 858-7036 3128587036 | 1 |
| 9 | (312) 858-7244 3128587244 | 1 |
| 10 | (312) 858-7447 3128587447 | 1 |
| 11 | (312) 858-7511 3128587511 | 1 |
| 12 | (312) 858-8285 3128588285 | 1 |
| 13 | (312) 858-0116 3128580116 | 1 |
| 14 | (312) 858-9760 3128589760 | 1 |
About This Prefix
Phone numbers starting with (312) 858 are part of the North American Numbering Plan (NANP). The first three digits (312) represent the Area Code (NPA), and the next three digits (858) represent the Central Office Code (NXX) or exchange.
- NPA (312) - Numbering Plan Area, identifies the geographic region
- NXX (858) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)