Phone Prefix
(773) 553-XXXX
IL • CHICGOZN06
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Carrier Information
NANPA
State
IL
Region
MW
Rate Center
CHICGOZN06
Assigned To
T-MOBILE USA, INC.
OCN
6529
Status
AS
Date Assigned
Feb 06, 2006
Number Range
First Number
(773) 553-0000
Last Number
(773) 553-9999
This prefix contains 10,000 possible phone numbers
Spam Reports
11 reports
11
Total FCC + FTC DNC complaints for numbers in this prefix
Top 8 Most Reported Numbers
| # | Phone Number | Reports |
|---|---|---|
| 1 | (773) 553-5700 7735535700 | 4 |
| 2 | (773) 553-1577 7735531577 | 1 |
| 3 | (773) 553-1631 7735531631 | 1 |
| 4 | (773) 553-2457 7735532457 | 1 |
| 5 | (773) 553-3380 7735533380 | 1 |
| 6 | (773) 553-4633 7735534633 | 1 |
| 7 | (773) 553-1118 7735531118 | 1 |
| 8 | (773) 553-7562 7735537562 | 1 |
About This Prefix
Phone numbers starting with (773) 553 are part of the North American Numbering Plan (NANP). The first three digits (773) represent the Area Code (NPA), and the next three digits (553) represent the Central Office Code (NXX) or exchange.
- NPA (773) - Numbering Plan Area, identifies the geographic region
- NXX (553) - Central Office Code, identifies the specific exchange
- XXXX - Subscriber number (0000-9999)