Phone Prefix
(773) 543-XXXX
IL • CHICGOZN04
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
CHICGOZN04
Assigned To
T-MOBILE USA, INC.
OCN
6529
Status
AS
Date Assigned
Oct 29, 2007
Number Range
First Number
(773) 543-0000
Last Number
(773) 543-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
5 reports
5
Total FCC + FTC DNC complaints for numbers in this prefix
Top 5 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (773) 543-0603 7735430603 | 1 |
| 2 | (773) 543-6964 7735436964 | 1 |
| 3 | (773) 543-8324 7735438324 | 1 |
| 4 | (773) 543-9796 7735439796 | 1 |
| 5 | (773) 543-9867 7735439867 | 1 |
About This Prefix
Phone numbers starting with (773) 543 are part of the North American Numbering Plan (NANP). The first three digits (773) represent the Area Code (NPA), and the next three digits (543) represent the Central Office Code (NXX) or exchange.
- NPA (773) - Numbering Plan Area, identifies the geographic region
- NXX (543) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)