Robtex

Up: 185.188.32.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 185.188.32.0/25
Down right: 185.188.32.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
185.188.32.0	PTR	host.domain
185.188.32.1	A+PTR	master1.teamviewer.com
185.188.32.1	A	master7.teamviewer.com
185.188.32.1	A	master.teamviewer.com
185.188.32.2	A+PTR	master2.teamviewer.com
185.188.32.3	A+PTR	master3.teamviewer.com
185.188.32.3	A	master11.teamviewer.com
185.188.32.3	A	master13.teamviewer.com
185.188.32.4	A+PTR	master4.teamviewer.com
185.188.32.4	A	master14.teamviewer.com
185.188.32.4	A	master10.teamviewer.com
185.188.32.5	A+PTR	master5.teamviewer.com
185.188.32.5	A	master11.teamviewer.com
185.188.32.5	A	master15.teamviewer.com
185.188.32.6	A+PTR	master6.teamviewer.com
185.188.32.6	A	master16.teamviewer.com
185.188.32.7	A	master7.teamviewer.com
185.188.32.8	A	master8.teamviewer.com
185.188.32.10	A	master10.teamviewer.com
185.188.32.11	A+PTR	master1udp.teamviewer.com
185.188.32.12	A+PTR	master2udp.teamviewer.com
185.188.32.13	A+PTR	master3udp.teamviewer.com
185.188.32.14	A+PTR	master4udp.teamviewer.com
185.188.32.15	A+PTR	master5udp.teamviewer.com
185.188.32.16	A+PTR	master6udp.teamviewer.com
185.188.32.23	A	master13.teamviewer.com
185.188.32.26	A	master16.teamviewer.com