Robtex

Up: 72.42.96.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 72.42.96.0/21
Down right: 72.42.104.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.42.96.178	PTR	ns1.skybeam.net
72.42.96.178	A	ns2.twlt.net
72.42.96.178	A	ns2.paonia.com
72.42.99.178	PTR	178-99-42-72.skybeam.com
72.42.100.132	A	dsl.pknet.net
72.42.100.154	A	dsl.pknet.net
72.42.100.210	PTR	210-100-42-72.skybeam.com
72.42.103.40	A	ftp.hyperverge.com
72.42.103.49	PTR	49-103-42-72.skybeam.com
72.42.103.80	PTR	80-103-42-72.skybeam.com
72.42.103.114	PTR	114-103-42-72.skybeam.com
72.42.103.115	PTR	115-103-42-72.skybeam.com
72.42.103.144	PTR	144-103-42-72.skybeam.com
72.42.103.161	PTR	161-103-42-72.skybeam.com
72.42.103.179	PTR	179-103-42-72.skybeam.com
72.42.103.227	PTR	227-103-42-72.skybeam.com
72.42.103.241	PTR	241-103-42-72.skybeam.com
72.42.103.243	PTR	243-103-42-72.skybeam.com
72.42.104.215	PTR	215-104-42-72.skybeam.com
72.42.108.171	A	hutchsautorepair.com
72.42.110.3	PTR	3-110-42-72.skybeam.com
72.42.110.16	PTR	16-110-42-72.skybeam.com
72.42.110.66	PTR	66-110-42-72.skybeam.com
72.42.110.67	PTR	67-110-42-72.skybeam.com
72.42.110.82	PTR	82-110-42-72.skybeam.com
72.42.110.130	PTR	130-110-42-72.skybeam.com
72.42.110.144	PTR	144-110-42-72.skybeam.com
72.42.110.160	PTR	160-110-42-72.skybeam.com
72.42.110.161	PTR	161-110-42-72.skybeam.com
72.42.110.177	PTR	177-110-42-72.skybeam.com
72.42.110.179	PTR	179-110-42-72.skybeam.com
72.42.110.209	PTR	209-110-42-72.skybeam.com
72.42.110.242	PTR	242-110-42-72.skybeam.com
72.42.111.225	A	mail.godakotacleanremote.com
72.42.111.225	A	godakotacleanremote.com