Robtex

Up: 206.83.80.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 206.83.80.0/26
Down right: 206.83.80.64/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
206.83.80.2	A+PTR	dns.echomail.com
206.83.80.21	PTR	em01.com
206.83.80.21	A+PTR	emiemx01.echomail.com
206.83.80.21	PTR	eaccount.em01.com
206.83.80.25	PTR	aspecho.com
206.83.80.25	PTR	echomail.com
206.83.80.25	PTR	echomailer.com
206.83.80.28	A	mail1queue.echomail.com
206.83.80.51	PTR	206.83.80.51.ptr.us.xo.net
206.83.80.51	A	pancreasolve.com
206.83.80.60	A+PTR	206.83.80.60.ptr.us.xo.net
206.83.80.60	A	www.astrology.tamilnadu.com
206.83.80.60	A	villages.tamilnadu.com
206.83.80.61	PTR	206.83.80.61.ptr.us.xo.net
206.83.80.61	A	pancreasolve.com
206.83.80.61	A	www.generalinteractive.com
206.83.80.69	PTR	206.83.80.69.ptr.us.xo.net
206.83.80.69	A	tamilnadu.com
206.83.80.73	A	www1.interactive.com
206.83.80.80	A+PTR	dmpop05.echomail.com
206.83.80.80	A	dmpop.generalinteractive.com
206.83.80.80	A	echosentinel.com
206.83.80.83	A	avservicebk.echomail.com
206.83.80.86	A	slimbacon.echomail.com
206.83.80.100	PTR	logodog.com
206.83.80.117	A	avservice1.echomail.com
206.83.80.124	PTR	biotechimages.com
206.83.80.124	PTR	www.biotechimages.com
206.83.80.126	PTR	metrosherpa.com
206.83.80.126	PTR	metrosherpa.net
206.83.80.126	PTR	www.metrosherpa.com
206.83.80.127	A	notes.cytosolve.org