Robtex

Up: 65.75.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 65.75.16.0/22
Down right: 65.75.20.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
65.75.16.21	A	mail.alcatcoatings.com
65.75.16.57	PTR	ip-414b1039.ct.fixed.ntplx.com
65.75.16.57	A	pslashg.net
65.75.16.57	A	mail.pslashg.net
65.75.16.68	A	ip-414b1044.ct.fixed.ntplx.com
65.75.16.104	A	ip-414b1068.ct.fixed.ntplx.com
65.75.16.107	A	dsl.fabriqueusa.com
65.75.16.112	PTR	ip-414b1070.ct.fixed.ntplx.com
65.75.16.112	A	promicrosoft.com
65.75.16.123	A	ip-414b107b.ct.fixed.ntplx.com
65.75.16.126	A	ip-414b107e.ct.fixed.ntplx.com
65.75.16.126	A	mail.sjmpcct.com
65.75.16.126	A	sjmpcct.com
65.75.16.164	A	exchange.lawmatters.com
65.75.16.164	A	exchange2.lawmatters.com
65.75.16.171	A	saybrookres.com
65.75.16.182	A	ip-414b10b6.ct.fixed.ntplx.com
65.75.16.196	A	mail.hunter-lovell.org
65.75.16.196	A	hunter-lovell.org
65.75.16.219	PTR	ip-414b10db.ct.fixed.ntplx.com
65.75.16.219	A	wipaw.org
65.75.16.219	A	mail.stevet.me
65.75.16.225	A+PTR	ip-414b10e1.ct.fixed.ntplx.com
65.75.16.227	A	ip-414b10e3.ct.fixed.ntplx.com
65.75.16.236	A	ip-414b10ec.ct.fixed.ntplx.com
65.75.16.254	A	gaiasartistry.com
65.75.16.254	A	gw.broomstick.com
65.75.17.10	PTR	ip-414b110a.ct.fixed.ntplx.com
65.75.17.12	A	mail.agorski.com
65.75.17.12	A	agorski.com
65.75.17.90	A	ip-414b115a.ct.fixed.ntplx.com
65.75.17.92	A	ip-414b115c.ct.fixed.ntplx.com
65.75.17.99	A	ip-414b1163.ct.fixed.ntplx.com
65.75.17.189	A	ip-414b11bd.ct.fixed.ntplx.com
65.75.17.189	A	falcokids.com
65.75.17.193	A	mail.ctnonprofits.org
65.75.17.245	A	memnoch.operations.com
65.75.17.245	A	memnoch2.operations.com
65.75.17.245	A	ip-414b11f5.ct.fixed.ntplx.com
65.75.18.3	A	ip-414b1203.ct.fixed.ntplx.com
65.75.18.27	A	ip-65-75-18-27.ct.dsl.ntplx.com
65.75.18.28	A	ip-414b121c.ct.fixed.ntplx.com
65.75.18.28	A	ip-65-75-18-28.ct.dsl.ntplx.com
65.75.18.29	A	ip-65-75-18-29.ct.dsl.ntplx.com
65.75.18.32	A	ip-414b1220.ct.fixed.ntplx.com
65.75.18.33	A	ip-65-75-18-33.ct.dsl.ntplx.com
65.75.18.34	A	ip-65-75-18-34.ct.dsl.ntplx.com
65.75.18.35	A	ip-65-75-18-35.ct.dsl.ntplx.com
65.75.18.77	A	mccoylimited.com
65.75.18.94	A	mail.freshmanmcglynn.com
65.75.18.99	PTR	ip-414b1263.ct.fixed.ntplx.com
65.75.18.99	A	mail.toolstory.com
65.75.18.101	A	mail.lbrosslaw.com
65.75.18.112	A	mccoy001.mccoyprinting.com
65.75.18.162	A+PTR	ip-414b12a2.ct.fixed.ntplx.com
65.75.18.162	A	b.ns.wtower.com
65.75.18.203	A	mail.miskowiak.net
65.75.18.204	A	mail.romanoil.com
65.75.18.229	A	remote2.fierston.com
65.75.19.1	A+PTR	ip-414b1301.ct.fixed.ntplx.com
65.75.19.3	A+PTR	ip-414b1303.ct.fixed.ntplx.com
65.75.19.7	A	ip-414b1307.ct.fixed.ntplx.com
65.75.19.14	A	walshtech.com
65.75.19.19	A	ip-414b1313.ct.fixed.ntplx.com
65.75.19.32	PTR	ip-414b1320.ct.fixed.ntplx.com
65.75.19.42	PTR	ip-414b132a.ct.fixed.ntplx.com
65.75.19.100	A	chuckrichards.net
65.75.19.146	A+PTR	ip-414b1392.ct.fixed.ntplx.com
65.75.20.31	A	ip-414b141f.ct.fixed.ntplx.com
65.75.20.64	A+PTR	ip-414b1440.ct.fixed.ntplx.com
65.75.20.64	A	unix.tomtec.com
65.75.20.131	PTR	ip-414b1483.ct.fixed.ntplx.com
65.75.20.131	A	cwa1298.org
65.75.20.131	A	email.cwa1298.org
65.75.20.222	A	ip-414b14de.ct.fixed.ntplx.com
65.75.20.250	PTR	ip-414b14fa.ct.fixed.ntplx.com
65.75.20.250	A	kbsteve.us
65.75.21.44	A	ip-414b152c.ct.fixed.ntplx.com
65.75.22.1	A+PTR	ip-414b1601.ct.fixed.ntplx.com
65.75.22.33	A+PTR	ip-414b1621.ct.fixed.ntplx.com
65.75.22.40	A+PTR	ip-414b1628.ct.fixed.ntplx.com
65.75.22.52	A	ip-414b1634.ct.fixed.ntplx.com
65.75.22.58	A+PTR	ip-414b163a.ct.fixed.ntplx.com
65.75.22.98	A+PTR	ip-414b1662.ct.fixed.ntplx.com
65.75.22.113	A+PTR	ip-414b1671.ct.fixed.ntplx.com
65.75.22.123	A+PTR	ip-414b167b.ct.fixed.ntplx.com
65.75.22.139	A+PTR	ip-414b168b.ct.fixed.ntplx.com
65.75.22.159	A	ip-414b169f.ct.fixed.ntplx.com
65.75.22.180	A	ip-414b16b4.ct.fixed.ntplx.com
65.75.22.234	A+PTR	ip-414b16ea.ct.fixed.ntplx.com
65.75.22.250	PTR	ip-414b16fa.ct.fixed.ntplx.com