Phone Prefix
(312) 423-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
TELEPORT COMMUNICATIONS AMERICA, LLC - IL
OCN
7136
Status
AS
Date Assigned
May 20, 2022
Number Range
First Number
(312) 423-0000
Last Number
(312) 423-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
80 reports
80
Total FCC + FTC DNC complaints for numbers in this prefix
Top 46 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (312) 423-7329 3124237329 | 14 |
| 2 | (312) 423-7516 3124237516 | 7 |
| 3 | (312) 423-7528 3124237528 | 6 |
| 4 | (312) 423-7548 3124237548 | 5 |
| 5 | (312) 423-7344 3124237344 | 3 |
| 6 | (312) 423-7510 3124237510 | 2 |
| 7 | (312) 423-7595 3124237595 | 2 |
| 8 | (312) 423-9797 3124239797 | 2 |
| 9 | (312) 423-7476 3124237476 | 2 |
| 10 | (312) 423-3782 3124233782 | 1 |
| 11 | (312) 423-4098 3124234098 | 1 |
| 12 | (312) 423-4150 3124234150 | 1 |
| 13 | (312) 423-4200 3124234200 | 1 |
| 14 | (312) 423-4969 3124234969 | 1 |
| 15 | (312) 423-4998 3124234998 | 1 |
| 16 | (312) 423-5542 3124235542 | 1 |
| 17 | (312) 423-6061 3124236061 | 1 |
| 18 | (312) 423-6524 3124236524 | 1 |
| 19 | (312) 423-6605 3124236605 | 1 |
| 20 | (312) 423-6686 3124236686 | 1 |
| 21 | (312) 423-7134 3124237134 | 1 |
| 22 | (312) 423-7191 3124237191 | 1 |
| 23 | (312) 423-7239 3124237239 | 1 |
| 24 | (312) 423-7338 3124237338 | 1 |
| 25 | (312) 423-7347 3124237347 | 1 |
| 26 | (312) 423-7384 3124237384 | 1 |
| 27 | (312) 423-7399 3124237399 | 1 |
| 28 | (312) 423-7509 3124237509 | 1 |
| 29 | (312) 423-7525 3124237525 | 1 |
| 30 | (312) 423-7554 3124237554 | 1 |
| 31 | (312) 423-7566 3124237566 | 1 |
| 32 | (312) 423-7772 3124237772 | 1 |
| 33 | (312) 423-7810 3124237810 | 1 |
| 34 | (312) 423-7934 3124237934 | 1 |
| 35 | (312) 423-9029 3124239029 | 1 |
| 36 | (312) 423-9606 3124239606 | 1 |
| 37 | (312) 423-0232 3124230232 | 1 |
| 38 | (312) 423-9836 3124239836 | 1 |
| 39 | (312) 423-0258 3124230258 | 1 |
| 40 | (312) 423-0692 3124230692 | 1 |
| 41 | (312) 423-1194 3124231194 | 1 |
| 42 | (312) 423-1602 3124231602 | 1 |
| 43 | (312) 423-1842 3124231842 | 1 |
| 44 | (312) 423-1846 3124231846 | 1 |
| 45 | (312) 423-2528 3124232528 | 1 |
| 46 | (312) 423-2529 3124232529 | 1 |
About This Prefix
Phone numbers starting with (312) 423 are part of the North American Numbering Plan (NANP). The first three digits (312) represent the Area Code (NPA), and the next three digits (423) represent the Central Office Code (NXX) or exchange.
- NPA (312) - Numbering Plan Area, identifies the geographic region
- NXX (423) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)