Phone Prefix
(312) 837-XXXX
IL • CHICGOZN01
Search Number in This Prefix
Enter the last 4 digits to search for a specific number
Carrier Information
NANPA
State
IL
Region
MW
Rate Center
CHICGOZN01
Assigned To
PEERLESS NETWORK OF ILLINOIS, LLC - IL
OCN
063E
Status
AS
Date Assigned
Sep 17, 2015
Number Range
First Number
(312) 837-0000
Last Number
(312) 837-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
31 reports
31
Total FCC + FTC DNC complaints for numbers in this prefix
Top 27 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (312) 837-0004 3128370004 | 5 |
| 2 | (312) 837-0078 3128370078 | 1 |
| 3 | (312) 837-0096 3128370096 | 1 |
| 4 | (312) 837-0115 3128370115 | 1 |
| 5 | (312) 837-0134 3128370134 | 1 |
| 6 | (312) 837-0138 3128370138 | 1 |
| 7 | (312) 837-0265 3128370265 | 1 |
| 8 | (312) 837-0321 3128370321 | 1 |
| 9 | (312) 837-0421 3128370421 | 1 |
| 10 | (312) 837-0479 3128370479 | 1 |
| 11 | (312) 837-0594 3128370594 | 1 |
| 12 | (312) 837-0856 3128370856 | 1 |
| 13 | (312) 837-0880 3128370880 | 1 |
| 14 | (312) 837-0891 3128370891 | 1 |
| 15 | (312) 837-0954 3128370954 | 1 |
| 16 | (312) 837-0971 3128370971 | 1 |
| 17 | (312) 837-0982 3128370982 | 1 |
| 18 | (312) 837-1280 3128371280 | 1 |
| 19 | (312) 837-1656 3128371656 | 1 |
| 20 | (312) 837-1798 3128371798 | 1 |
| 21 | (312) 837-1934 3128371934 | 1 |
| 22 | (312) 837-2060 3128372060 | 1 |
| 23 | (312) 837-3816 3128373816 | 1 |
| 24 | (312) 837-4361 3128374361 | 1 |
| 25 | (312) 837-4365 3128374365 | 1 |
| 26 | (312) 837-0002 3128370002 | 1 |
| 27 | (312) 837-6062 3128376062 | 1 |
About This Prefix
Phone numbers starting with (312) 837 are part of the North American Numbering Plan (NANP). The first three digits (312) represent the Area Code (NPA), and the next three digits (837) represent the Central Office Code (NXX) or exchange.
- NPA (312) - Numbering Plan Area, identifies the geographic region
- NXX (837) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)