Robtex

Up: 84.19.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 84.19.56.0/22
Down right: 84.19.60.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
84.19.56.3	PTR	u84-19-56-3.user.ah.cust.vaioni.com
84.19.56.34	PTR	mail.whitgift.co.uk
84.19.56.34	A	mx2.whitgift.co.uk
84.19.56.131	PTR	ns1.mac56.net
84.19.56.132	A	ns2.mac56.net
84.19.56.135	A	mail2.mac56.co.uk
84.19.56.137	PTR	u84-19-56-137.cust.vaioni.com
84.19.56.137	A	mx.mac56.co.uk
84.19.56.138	PTR	u84-19-56-138.cust.vaioni.com
84.19.56.138	A	mx2.mac56.co.uk
84.19.56.140	A	mail.specialistlamps.com
84.19.56.163	PTR	web57-mr163.mac56.co.uk
84.19.56.163	A	pmcbikescars.com
84.19.56.163	A	mac56.co.uk
84.19.56.202	A	mail.wai.ae
84.19.56.202	A	mx1.main-computers.com
84.19.56.202	A	mail.atizlan.com
84.19.57.10	A+PTR	smtp.gammadata.com
84.19.57.10	A	gammadataware.com
84.19.57.92	A	mail.mediaingenuity.com
84.19.57.92	A	mail.granitecard.co.uk
84.19.57.92	A	mail.leadmarket.co.uk
84.19.58.117	A	mail.tracsis.com
84.19.59.20	A	mail.openawards.org.uk
84.19.59.72	PTR	u84-19-59-72.cust.vaioni.com
84.19.59.84	A	mail-new.markhamfroggattirwin.com
84.19.59.84	A	mail.markhamfroggattirwin.com
84.19.60.214	A	mail.oystons.com
84.19.60.215	A	mail.denwis.com
84.19.60.216	A	office.countymags.co.uk
84.19.61.38	A	eatworkart.com
84.19.61.38	A	netilmarket.com
84.19.61.38	A	therusset.co.uk
84.19.61.100	A	foilvpn.com
84.19.62.154	A	mail.intexion.co.uk
84.19.62.229	A	www.cyac.org.uk
84.19.62.229	A	www.caistoryarboroughacademy.org.uk
84.19.63.154	PTR	u84-19-63-154.cust.vaioni.com
84.19.63.154	A	oraclenetworksuk.co.uk
84.19.63.194	PTR	u84-19-63-194.cust.vaioni.com
84.19.63.242	PTR	u84-19-63-242.cust.vaioni.com
84.19.63.242	A	mail.roiltd.co.uk