Robtex

Up: 85.198.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 85.198.20.0/23
Down right: 85.198.22.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
85.198.20.3	A	activedir.tstonline.com
85.198.20.6	A	ns5.tstonline.com
85.198.20.8	A	mail.tstonline.ir
85.198.20.10	A	www.tstonline.com
85.198.20.10	A	juventudegoncalense.com
85.198.20.10	A	20call.net
85.198.20.19	PTR	imenpardis.com
85.198.20.19	A	ipcert.ir
85.198.20.20	A	ns2.tstonline.com
85.198.20.66	A	thegatewoods.com
85.198.20.66	A	www.20talk.net
85.198.20.66	A	20talk.net
85.198.20.70	PTR	tstonline.ir
85.198.20.70	A+PTR	tstonline.net
85.198.20.70	A	www.tstonline.com
85.198.20.74	A+PTR	mail.tva.tv
85.198.20.74	A	mail.irasaneh.com
85.198.20.74	A	mail.tvaplus.com
85.198.20.82	A+PTR	mail.20talk.com
85.198.20.82	A	mx1.20talk.com
85.198.20.82	A	mx.20talk.com
85.198.20.86	PTR	mail.tstonline.com
85.198.20.86	PTR	mail.tstonline.ir
85.198.20.86	A+PTR	mx.tstonline.ir
85.198.20.122	A+PTR	isport.ir
85.198.22.12	A	funbarcatering.eu
85.198.22.22	PTR	ns3.bitanet.net
85.198.22.23	PTR	ns4.bitanet.net
85.198.22.24	PTR	mail.bitanet.net