IP Address: 128.138.231.21
The IP address 128.138.231.21 belongs to the U.S. IP address space and indicates access from the United States.
Location: 
United States (US)
Region: Colorado
City: Broomfield
ZIP: 80020
Hostname: stad3.colorado.edu
IP Range: 128.138.231.0/24
ISP: University of Colorado at Boulder
Organization: University of Colorado
Blacklist: Nein
TOR: Nein
Zone: America/Denver
Local: Saturday, September 13 2025 02:23:30 GMT-6
Information about IP address 128.138.231.21 and its significance
The IP address 128.138.231.21 enables the precise identification of network access and provides valuable insights into location, user behavior, and security aspects. Its analysis plays a key role in optimizing digital services, detecting attack patterns, and implementing targeted geo-strategies.