Robtex

Up: 166.84.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 166.84.144.0/21
Down right: 166.84.152.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
166.84.144.52	A	dsl.shpnyc.com
166.84.146.2	A	vmail.200-varick.com
166.84.146.65	A+PTR	dsl.zachar.com
166.84.146.113	PTR	customer.panix.com
166.84.147.1	A	alexis-gw.access.net
166.84.147.4	PTR	tibook.alexis.access.net
166.84.147.9	A	dsl.msafra.com
166.84.147.10	A	nycschoon2.msafra.com
166.84.147.10	A	mx2.msafra.com
166.84.147.33	PTR	customer.panix.com
166.84.147.34	PTR	customer.panix.com
166.84.147.34	A	heimdall.cfx.com
166.84.147.68	PTR	customer.panix.com
166.84.147.97	PTR	customer.panix.com
166.84.148.1	A	taxreclaim.org
166.84.148.2	PTR	customer.panix.com
166.84.148.4	PTR	customer.panix.com
166.84.148.4	A	mailhost.taxreclaim.org
166.84.148.80	PTR	customer.panix.com
166.84.148.196	PTR	customer.panix.com
166.84.148.241	PTR	customer.panix.com
166.84.151.84	PTR	customer.panix.com
166.84.153.3	PTR	customer.panix.com
166.84.153.4	PTR	customer.panix.com
166.84.154.52	PTR	customer.panix.com
166.84.154.179	PTR	customer.panix.com
166.84.154.180	PTR	customer.panix.com
166.84.154.236	A	ab0rti0n.com
166.84.154.236	A	aborti0npill.com
166.84.154.236	A	ab0rtion.com
166.84.155.32	PTR	customer.panix.com
166.84.155.33	PTR	customer.panix.com
166.84.155.66	PTR	customer.panix.com
166.84.155.98	PTR	customer.panix.com
166.84.158.121	PTR	customer.panix.com
166.84.159.89	A	159-89.nyc.dsl.access.net