Robtex

Up: 72.1.188.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 72.1.190.0/24
Down right: 72.1.191.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.1.190.16	A+PTR	dsl001-190-016.nyc1.dsl.speakeasy.net
72.1.190.30	A+PTR	dsl001-190-030.nyc1.dsl.speakeasy.net
72.1.190.42	A+PTR	dsl001-190-042.nyc1.dsl.speakeasy.net
72.1.190.58	A+PTR	dsl001-190-058.nyc1.dsl.speakeasy.net
72.1.190.65	A+PTR	dsl001-190-065.nyc1.dsl.speakeasy.net
72.1.190.79	A+PTR	dsl001-190-079.nyc1.dsl.speakeasy.net
72.1.190.84	A+PTR	dsl001-190-084.nyc1.dsl.speakeasy.net
72.1.190.93	A+PTR	dsl001-190-093.nyc1.dsl.speakeasy.net
72.1.190.98	A+PTR	dsl001-190-098.nyc1.dsl.speakeasy.net
72.1.190.102	A+PTR	dsl001-190-102.nyc1.dsl.speakeasy.net
72.1.190.109	A+PTR	dsl001-190-109.nyc1.dsl.speakeasy.net
72.1.190.116	A+PTR	dsl001-190-116.nyc1.dsl.speakeasy.net
72.1.190.137	A+PTR	dsl001-190-137.nyc1.dsl.speakeasy.net
72.1.190.138	A+PTR	dsl001-190-138.nyc1.dsl.speakeasy.net
72.1.190.151	A+PTR	dsl001-190-151.nyc1.dsl.speakeasy.net
72.1.190.155	A+PTR	dsl001-190-155.nyc1.dsl.speakeasy.net
72.1.190.160	A	dsl001-190-160.nyc1.dsl.speakeasy.net
72.1.190.162	A+PTR	dsl001-190-162.nyc1.dsl.speakeasy.net
72.1.190.166	A+PTR	dsl001-190-166.nyc1.dsl.speakeasy.net
72.1.190.175	A+PTR	dsl001-190-175.nyc1.dsl.speakeasy.net
72.1.190.191	A+PTR	dsl001-190-191.nyc1.dsl.speakeasy.net
72.1.190.210	A+PTR	dsl001-190-210.nyc1.dsl.speakeasy.net
72.1.190.218	A+PTR	dsl001-190-218.nyc1.dsl.speakeasy.net
72.1.190.240	A+PTR	dsl001-190-240.nyc1.dsl.speakeasy.net
72.1.190.246	A+PTR	dsl001-190-246.nyc1.dsl.speakeasy.net
72.1.190.247	A+PTR	dsl001-190-247.nyc1.dsl.speakeasy.net
72.1.190.249	A+PTR	dsl001-190-249.nyc1.dsl.speakeasy.net
72.1.190.251	A+PTR	dsl001-190-251.nyc1.dsl.speakeasy.net
72.1.191.10	PTR	mail.workspeed.com
72.1.191.49	A+PTR	dsl001-191-049.nyc1.dsl.speakeasy.net
72.1.191.53	A+PTR	dsl001-191-053.nyc1.dsl.speakeasy.net
72.1.191.66	PTR	blackbird.valtechresearch.com
72.1.191.76	PTR	dsl001-191-076.nyc1.dsl.speakeasy.net
72.1.191.78	PTR	dsl001-191-078.nyc1.dsl.speakeasy.net
72.1.191.167	PTR	dsl001-191-167.nyc1.dsl.speakeasy.net
72.1.191.167	A	mail.libertyroyal.com
72.1.191.167	A	mail2.avistahc.com
72.1.191.178	PTR	gateway.cybercityinc.com
72.1.191.226	A+PTR	dsl001-191-226.nyc1.dsl.speakeasy.net
72.1.191.226	A	*.cbwchc.org
72.1.191.226	A	mail2.cbwchc.org
72.1.191.227	PTR	mail.cbwchc.org
72.1.191.229	A+PTR	dsl001-191-229.nyc1.dsl.speakeasy.net
72.1.191.229	A	mail.chinatownhealth.org
72.1.191.231	A+PTR	dsl001-191-231.nyc1.dsl.speakeasy.net
72.1.191.255	PTR	dsl001-191-255.nyc1.dsl.speakeasy.net