Phone Prefix
(312) 517-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
LEVEL 3 COMMUNICATIONS, LLC - IL
OCN
6115
Status
AS
Date Assigned
Jun 22, 2016
Number Range
First Number
(312) 517-0000
Last Number
(312) 517-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
35 reports
35
Total FCC + FTC DNC complaints for numbers in this prefix
Top 29 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (312) 517-2410 3125172410 | 4 |
| 2 | (312) 517-0295 3125170295 | 2 |
| 3 | (312) 517-0294 3125170294 | 2 |
| 4 | (312) 517-0617 3125170617 | 1 |
| 5 | (312) 517-1376 3125171376 | 1 |
| 6 | (312) 517-1740 3125171740 | 1 |
| 7 | (312) 517-2316 3125172316 | 1 |
| 8 | (312) 517-2443 3125172443 | 1 |
| 9 | (312) 517-2543 3125172543 | 1 |
| 10 | (312) 517-2591 3125172591 | 1 |
| 11 | (312) 517-3120 3125173120 | 1 |
| 12 | (312) 517-3947 3125173947 | 1 |
| 13 | (312) 517-4922 3125174922 | 1 |
| 14 | (312) 517-4959 3125174959 | 1 |
| 15 | (312) 517-5051 3125175051 | 1 |
| 16 | (312) 517-5466 3125175466 | 1 |
| 17 | (312) 517-5986 3125175986 | 1 |
| 18 | (312) 517-6089 3125176089 | 1 |
| 19 | (312) 517-6381 3125176381 | 1 |
| 20 | (312) 517-6549 3125176549 | 1 |
| 21 | (312) 517-7215 3125177215 | 1 |
| 22 | (312) 517-7273 3125177273 | 1 |
| 23 | (312) 517-7279 3125177279 | 1 |
| 24 | (312) 517-8116 3125178116 | 1 |
| 25 | (312) 517-8696 3125178696 | 1 |
| 26 | (312) 517-9363 3125179363 | 1 |
| 27 | (312) 517-9751 3125179751 | 1 |
| 28 | (312) 517-0297 3125170297 | 1 |
| 29 | (312) 517-0299 3125170299 | 1 |
About This Prefix
Phone numbers starting with (312) 517 are part of the North American Numbering Plan (NANP). The first three digits (312) represent the Area Code (NPA), and the next three digits (517) represent the Central Office Code (NXX) or exchange.
- NPA (312) - Numbering Plan Area, identifies the geographic region
- NXX (517) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)