Robtex

Up: 206.124.64.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 206.124.64.0/23
Down right: 206.124.66.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
206.124.64.1	PTR	bigguy.gte.net
206.124.64.1	A	spnj.com
206.124.64.1	A	*.spnj.com
206.124.64.100	A+PTR	bgfarm.gte.net
206.124.64.242	A+PTR	goofy.gte.net
206.124.64.245	A+PTR	dns-vr.ace.dfw-tx.vzlink.com
206.124.64.246	A+PTR	dns1.ace.dfw-tx.vzlink.com
206.124.64.248	PTR	gig1-0-20.core1.dfw-tx.vzlink.com
206.124.64.249	PTR	gig2-0-20.core2.dfw-tx.vzlink.com
206.124.64.253	PTR	oingo.gte.net
206.124.64.253	A	perfettilaw.com
206.124.65.253	PTR	boingo.gte.net
206.124.65.253	A	perfettilaw.com