Robtex

Up: 72.1.172.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 72.1.172.0/25
Down right: 72.1.172.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.1.172.0	PTR	dsl001-172-000.lax1.dsl.speakeasy.net
72.1.172.0	A	dirtmojo.com
72.1.172.3	A+PTR	dsl001-172-003.lax1.dsl.speakeasy.net
72.1.172.4	A+PTR	dsl001-172-004.lax1.dsl.speakeasy.net
72.1.172.8	A+PTR	dsl001-172-008.lax1.dsl.speakeasy.net
72.1.172.11	A+PTR	dsl001-172-011.lax1.dsl.speakeasy.net
72.1.172.24	A+PTR	dsl001-172-024.lax1.dsl.speakeasy.net
72.1.172.26	A+PTR	dsl001-172-026.lax1.dsl.speakeasy.net
72.1.172.30	A+PTR	dsl001-172-030.lax1.dsl.speakeasy.net
72.1.172.32	A+PTR	dsl001-172-032.lax1.dsl.speakeasy.net
72.1.172.34	PTR	gw.thorsoninsurance.com
72.1.172.36	PTR	mail.thorsoninsurance.com
72.1.172.40	A+PTR	dsl001-172-040.lax1.dsl.speakeasy.net
72.1.172.44	A+PTR	dsl001-172-044.lax1.dsl.speakeasy.net
72.1.172.46	A+PTR	dsl001-172-046.lax1.dsl.speakeasy.net
72.1.172.56	PTR	dsl001-172-056.lax1.dsl.speakeasy.net
72.1.172.69	PTR	dsl001-172-069.lax1.dsl.speakeasy.net
72.1.172.75	A+PTR	dsl001-172-075.lax1.dsl.speakeasy.net
72.1.172.82	PTR	dsl001-172-082.lax1.dsl.speakeasy.net
72.1.172.95	A+PTR	dsl001-172-095.lax1.dsl.speakeasy.net
72.1.172.97	PTR	dsl001-172-097.lax1.dsl.speakeasy.net
72.1.172.99	PTR	dsl001-172-099.lax1.dsl.speakeasy.net
72.1.172.101	A	ns2.ccsystemsupport.net
72.1.172.102	PTR	dsl001-172-102.lax1.dsl.speakeasy.net
72.1.172.102	A	ns1.ccsystemsupport.net
72.1.172.104	PTR	dsl001-172-104.lax1.dsl.speakeasy.net
72.1.172.104	A	smtp.porrs.net
72.1.172.104	A	smtp.glarcrc.com
72.1.172.110	PTR	dsl001-172-110.lax1.dsl.speakeasy.net
72.1.172.110	A	ccsystemsupport.net
72.1.172.110	A	mail.catesproperties.com
72.1.172.111	A+PTR	dsl001-172-111.lax1.dsl.speakeasy.net
72.1.172.111	A	thewatcher.net
72.1.172.115	A	mail.dominguezhillsestates.info
72.1.172.117	A+PTR	dsl001-172-117.lax1.dsl.speakeasy.net
72.1.172.117	A	dirtmojo.com
72.1.172.117	A	dominguezhillsestates.info
72.1.172.120	A+PTR	dsl001-172-120.lax1.dsl.speakeasy.net
72.1.172.124	A+PTR	dsl001-172-124.lax1.dsl.speakeasy.net
72.1.172.129	A+PTR	dsl001-172-129.lax1.dsl.speakeasy.net
72.1.172.140	A+PTR	dsl001-172-140.lax1.dsl.speakeasy.net
72.1.172.142	A+PTR	dsl001-172-142.lax1.dsl.speakeasy.net
72.1.172.157	A+PTR	dsl001-172-157.lax1.dsl.speakeasy.net
72.1.172.169	A+PTR	dsl001-172-169.lax1.dsl.speakeasy.net
72.1.172.173	A+PTR	dsl001-172-173.lax1.dsl.speakeasy.net
72.1.172.184	A+PTR	dsl001-172-184.lax1.dsl.speakeasy.net
72.1.172.185	A+PTR	dsl001-172-185.lax1.dsl.speakeasy.net
72.1.172.211	A+PTR	dsl001-172-211.lax1.dsl.speakeasy.net
72.1.172.214	A+PTR	dsl001-172-214.lax1.dsl.speakeasy.net
72.1.172.224	A+PTR	dsl001-172-224.lax1.dsl.speakeasy.net
72.1.172.236	PTR	ns1.alliantcapital.com
72.1.172.237	A+PTR	dsl001-172-237.lax1.dsl.speakeasy.net
72.1.172.252	A	hillsidecontractor.com
72.1.172.252	A	lacontractors.biz
72.1.172.252	A	hillsidebuilder.net