Robtex

Up: 101.0.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 101.0.24.0/22
Down right: 101.0.28.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
101.0.24.0	PTR	class24.0.mailhaus.biz
101.0.25.80	A	101a0a25a80-goro.instance-corgi.net
101.0.25.152	PTR	101a0a25a152-goro.instance-corgi.net
101.0.26.15	A	www15-26.dc-clean.com
101.0.26.223	A	www223-26.dc-clean.com
101.0.27.9	PTR	www9-27.dcclean.net
101.0.27.75	A	www75-27.dcclean.net
101.0.27.89	PTR	www89-27.dcclean.net
101.0.27.114	A+PTR	www114-27.dc-clean.com
101.0.27.130	A	www130-27.dc-clean.com
101.0.27.136	PTR	www136-27.dcclean.net
101.0.27.137	PTR	www137-27.dcclean.net
101.0.27.152	PTR	www152-27.dcclean.net
101.0.27.153	PTR	www153-27.dcclean.net
101.0.27.168	PTR	www168-27.dcclean.net
101.0.27.169	PTR	www169-27.dcclean.net
101.0.27.177	PTR	www177-27.dcclean.net
101.0.27.184	PTR	www184-27.dcclean.net
101.0.27.185	PTR	www185-27.dcclean.net
101.0.28.45	A	mail.jura-ssic-yellow.com
101.0.28.45	A	mail.voice-lovelove.com
101.0.28.45	A	mail.jea-lous-orange.com
101.0.29.4	A	www4-29.dc-clean.com
101.0.29.54	A	www54-29.dc-clean.com
101.0.29.75	PTR	www75-29.dc-clean.com
101.0.29.112	A+PTR	www112-29.dcclean.net
101.0.29.112	A	www112-29.dc-clean.com
101.0.29.124	A	www124-29.dcclean.net
101.0.29.188	A	www188-29.dc-clean.com
101.0.29.212	A	www212-29.dc-clean.com
101.0.29.220	A	www220-29.dcclean.net
101.0.29.220	A	www220-29.dc-clean.com
101.0.29.226	PTR	www226-29.dc-clean.com
101.0.31.27	A+PTR	www27-31.dc-clean.com
101.0.31.108	A	www108-31.dc-clean.com
101.0.31.108	A	www108-31.dcclean.net
101.0.31.151	A	www151-31.dc-clean.com
101.0.31.153	PTR	wdle2fou8m.153.1234509876.ip
101.0.31.252	A	www252-31.dc-clean.com