Robtex

Up: 204.95.150.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 204.95.150.0/25
Down right: 204.95.150.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.95.150.1	A+PTR	iwpedns01.carreker.com
204.95.150.4	A+PTR	eroom01.carreker.com
204.95.150.4	A+PTR	eroom.checkfree.com
204.95.150.4	A+PTR	eroom01.checkfree.com
204.95.150.11	A+PTR	ftp.checkfree.com
204.95.150.12	A	www2.checkfree.com
204.95.150.14	A+PTR	connectnorcross.checkfree.com
204.95.150.15	A	quickplace.checkfree.com
204.95.150.18	A+PTR	balt.checkfree.com
204.95.150.18	A+PTR	iwpcfsn01.checkfree.com
204.95.150.19	A+PTR	1099-compliance.com
204.95.150.19	PTR	cfacsonline.com
204.95.150.19	A	www.reconciliationsolutions.net
204.95.150.37	A+PTR	ondemand.fiserv.com
204.95.150.46	A+PTR	teamtrack.checkfree.com
204.95.150.54	A	webmail.checkfree.com
204.95.150.57	A	virtualoffice.checkfree.com
204.95.150.58	A+PTR	ftp.fitnessmanager.com
204.95.150.75	A+PTR	autodiscover.fiserv.com
204.95.150.75	PTR	outlook2.fiserv.net
204.95.150.80	A+PTR	i-solutions.checkfree.com
204.95.150.80	A+PTR	about.thevalidnetwork.com
204.95.150.84	A	sametime.checkfree.com
204.95.150.96	A+PTR	sfb-web-meet.fiservcommunications.com
204.95.150.96	A+PTR	sfb-web-app.fiservcommunications.com
204.95.150.96	A+PTR	sfb-dial-in.fiservcommunications.com
204.95.150.101	A+PTR	billtemplates.checkfree.com
204.95.150.105	A+PTR	y2k.mybills.com
204.95.150.106	A	y2k.getbills.com
204.95.150.107	A	y2kadmin.mybills.com
204.95.150.158	A+PTR	pathcontrol1.checkfree.com
204.95.150.205	A+PTR	inet.checkfree.com
204.95.150.206	A+PTR	y2kftp.checkfree.com
204.95.150.215	A+PTR	inettst.checkfree.com
204.95.150.228	A+PTR	mail2.checkfree.com
204.95.150.228	A+PTR	mail2.fiserv.com
204.95.150.229	A+PTR	mail1.checkfree.com
204.95.150.229	A+PTR	mail1.fiserv.com
204.95.150.237	A+PTR	sfb-access-prod.fiservcorp.com
204.95.150.237	A+PTR	sfb-edge-pool-prod.fiservcorp.com
204.95.150.237	A+PTR	sip-prod.fiservcorp.com
204.95.150.244	A+PTR	cm01.fiservcorp.com
204.95.150.247	A+PTR	awsego365gen.onefiserv.com
204.95.150.252	A+PTR	sfb-edge-pool-prod.fiservcorp.com
204.95.150.252	A+PTR	sfb-access-prod.fiservcorp.com
204.95.150.252	A+PTR	sip-prod.fiservcorp.com