Robtex

Up: 192.86.64.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.86.64.0/25
Down right: 192.86.64.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.86.64.10	A+PTR	outbound3-nonen.messaging.lotuslive.com
192.86.64.11	A+PTR	outbound3-nonen.messaging.lotuslive.com
192.86.64.12	A+PTR	outbound3-nonen.messaging.lotuslive.com
192.86.64.13	A+PTR	outbound3-nonen.messaging.lotuslive.com
192.86.64.16	A+PTR	outbound3.messaging.lotuslive.com
192.86.64.17	A+PTR	outbound3.messaging.lotuslive.com
192.86.64.18	A+PTR	outbound3.messaging.lotuslive.com
192.86.64.19	A+PTR	outbound3.messaging.lotuslive.com
192.86.64.20	A+PTR	outbound3.messaging.lotuslive.com
192.86.64.21	A+PTR	outbound3.messaging.lotuslive.com
192.86.64.31	PTR	192-86-64-31.lotuslive.com
192.86.64.31	A	pop.iland.net
192.86.64.31	A	smtp.iland.net
192.86.64.33	PTR	192-86-64-33.lotuslive.com
192.86.64.33	A	smtp.otelco.net
192.86.64.34	PTR	192-86-64-34.lotuslive.com
192.86.64.35	A	mail.sanriotown.com
192.86.64.39	PTR	inbound3-1.messaging.lotuslive.com
192.86.64.39	A	hellokitty-com-bk.messaging.lotuslive.com
192.86.64.39	A	kuririnmail-com-bk.messaging.na.collabserv.com
192.86.64.40	PTR	inbound3-2.messaging.lotuslive.com
192.86.64.40	A	hellokitty-com-bk.messaging.lotuslive.com
192.86.64.40	A	kuririnmail-com-bk.messaging.na.collabserv.com
192.86.64.41	PTR	inbound3-3.messaging.lotuslive.com
192.86.64.41	A	hellokitty-com-bk.messaging.lotuslive.com
192.86.64.41	A	kuririnmail-com-bk.messaging.na.collabserv.com
192.86.64.42	PTR	inbound3-4.messaging.lotuslive.com
192.86.64.42	A	hellokitty-com-bk.messaging.lotuslive.com
192.86.64.42	A	kuririnmail-com-bk.messaging.na.collabserv.com
192.86.64.43	A+PTR	inbound3-5.messaging.lotuslive.com
192.86.64.44	A+PTR	inbound3-6.messaging.lotuslive.com
192.86.64.45	PTR	192-86-64-45.lotuslive.com
192.86.64.45	A	www-03-09.wr.messaging.lotuslive.com
192.86.64.45	A	atcnet-webmail.messaging.lotuslive.com
192.86.64.47	PTR	192-86-64-47.lotuslive.com
192.86.64.47	A	smtp.hickorytech.net
192.86.64.47	A	hickorytech-webmail-ssl2.messaging.lotuslive.com
192.86.64.55	PTR	192-86-64-55.lotuslive.com
192.86.64.68	PTR	192-86-64-68.lotuslive.com
192.86.64.68	A	enventis-webmail-ssl2.messaging.na.collabserv.com
192.86.64.68	A	www-03-19.wr.messaging.na.collabserv.com