Robtex

Up: 74.5.192.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 74.5.192.0/22
Down right: 74.5.196.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
74.5.192.34	A	mail.gastrotn.com
74.5.192.214	A+PTR	mail.regionaleye.com
74.5.192.218	A	mail.usfcu.org
74.5.193.43	A	mail.andersoncompoundingpharmacy.com
74.5.193.43	A	mail.acprx.net
74.5.193.49	PTR	nameserver01.bcti.com
74.5.193.49	A	bcti.com
74.5.193.49	A	baileycomputing.com
74.5.193.50	PTR	nameserver02.bcti.com
74.5.193.52	A	mail.bcti.com
74.5.193.52	A	securemail.bcti.com
74.5.194.27	A+PTR	thangorodrim.jcpb.com
74.5.194.27	A	mail.my-br.com
74.5.194.27	A	mail.jcpb.com
74.5.194.50	PTR	mail.bai-map.com
74.5.194.67	PTR	74-5-194-67.centurylinkservices.net
74.5.194.67	A	mail.qetsu.org
74.5.194.68	A	qetsu.org
74.5.194.90	PTR	webmail.tnelco.com
74.5.194.194	PTR	74-5-194-194.centurylinkservices.net
74.5.194.196	A	barracuda.ejcpress.com
74.5.194.196	A	barracuda.realtytnc.com
74.5.194.196	A	barracuda.tnconstables.com
74.5.194.220	A	jcpress.net
74.5.194.220	A	*.johnsoncitypress.net
74.5.194.220	A	johnsoncitypress.net
74.5.197.18	PTR	nemesis.powellcc.com
74.5.197.18	A	powell-tech.com
74.5.197.18	A	powellconstructioncompany.com
74.5.197.73	PTR	host73.embarqservices.net
74.5.197.82	PTR	host82.embarqservices.net
74.5.197.82	A	mx2.jchousing.org
74.5.197.82	A	mx1.jchousing.org
74.5.197.83	A	mail.jchousing.org
74.5.197.99	A	mail.aokortho.com
74.5.197.178	PTR	mailgw.ci.kingsport.tn.us
74.5.197.178	A	mailgw.kingsporttn.gov
74.5.197.250	PTR	mail.trisummitbank.com
74.5.198.3	A+PTR	dtrsmtpmid.dtrtn.com
74.5.198.4	A+PTR	dtrsmtptaz.dtrtz.com
74.5.198.6	A	mail2.dtroh.com
74.5.198.7	PTR	email2.dtrtn.com
74.5.198.7	A	mail.dtrtn.com
74.5.198.8	A	mail.dtrtz.com
74.5.198.15	A+PTR	mail2010.dtrtn.com
74.5.198.66	PTR	gate.hmgkpt.com
74.5.198.70	A	ns1.myhmg.net
74.5.198.70	A	myhmg.net
74.5.198.70	A	myseasonsforyou.org
74.5.198.88	A	nameserver01.onepartner.com
74.5.198.89	A	nameserver02.onepartner.com
74.5.198.115	A	orthocenterofthesoutheast.net
74.5.198.115	A	orthocenterofthesoutheast.org
74.5.198.115	A	orthocenterofthesoutheast.com
74.5.198.116	A	seasonsforyou.net
74.5.199.35	A+PTR	dr-smtp.forwardair.com
74.5.199.35	A	mail20.acecargollc.com
74.5.199.39	A	fwrdns.com