75.2.33.159

• RIPE4 159.33.2.75.in-addr.arpa
• PTRa24308534a5d3e6fb.awsglobalaccelerator.com expired since 6 days, 23 hours
• Records pointing here:
• Aenglish.wisc.edu
• Achem.wisc.edu expired since 1 week
• Aa24308534a5d3e6fb.awsglobalaccelerator.com expired since 1 week
• Awww.chem.wisc.edu expired since 1 week
• Aeducation.wisc.edu expired since 1 week
• Awiscweb.wisc.edu expired since 1 week
• Ahsx.wisc.edu expired since 1 week, 1 day
• Acals.wisc.edu expired since 1 week, 1 day
• Awww.astro.wisc.edu expired since 1 week, 2 days
• Show 1 expired records

This top-level domain has no publically available whois server. Try going to www.nic.arpa.