Robtex

Up: 199.21.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 199.21.72.0/22
Down right: 199.21.76.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
199.21.73.2	PTR	2.unused.inksoft73.bigbytesystems.com
199.21.73.2	A	inksoft.com
199.21.73.9	PTR	9.unused.inksoft73.bigbytesystems.com
199.21.73.9	A	customtscorp.com
199.21.73.9	A	digiprints.graphics
199.21.73.10	PTR	10.unused.inksoft73.bigbytesystems.com
199.21.73.11	PTR	11.unused.inksoft73.bigbytesystems.com
199.21.73.20	A	tshirtjunkie.net
199.21.73.20	A	affinity-graphics.com
199.21.73.20	A	inkshirts.com
199.21.73.21	A	screendreamproductions.com
199.21.73.27	PTR	27.unused.inksoft73.bigbytesystems.com
199.21.73.27	A	10mintee.com
199.21.73.27	A	sunflowergraphics.com
199.21.73.28	A	eastleyapparel.com
199.21.73.32	PTR	32.unused.inksoft73.bigbytesystems.com
199.21.73.32	A	ppmgcustomstudio.com
199.21.73.34	A	getpersonalgiftsonline.com
199.21.73.36	A	twinetees.com
199.21.73.37	A	giftgolfballs.com
199.21.73.43	A	causefortshirts.com
199.21.73.46	A	webbsuniforms.com
199.21.73.50	PTR	50.unused.inksoft73.bigbytesystems.com
199.21.73.54	A	mail.oshirtsprinting.com
199.21.73.54	A	teeosk.com
199.21.73.54	A	oshirtsprinting.com
199.21.73.57	PTR	57.unused.inksoft73.bigbytesystems.com
199.21.73.57	A	usasham.com
199.21.73.57	A	wpschoolstore.com
199.21.73.59	A	bigfootprints.net
199.21.73.60	A	red2purple.com
199.21.73.64	PTR	64.unused.inksoft73.bigbytesystems.com
199.21.73.64	A	shirtspot.com
199.21.73.71	A	teeorama.com
199.21.73.72	PTR	72.unused.inksoft73.bigbytesystems.com
199.21.73.72	A	promo-logo.net
199.21.73.74	PTR	74.unused.inksoft73.bigbytesystems.com
199.21.73.74	A	onecolor.clothing
199.21.73.74	A	southwestdtg.com
199.21.73.80	PTR	80.unused.inksoft73.bigbytesystems.com
199.21.73.80	A	com.customshirts.com
199.21.73.80	A	stabletransit.com.customshirts.com
199.21.73.83	PTR	83.unused.inksoft73.bigbytesystems.com
199.21.73.89	PTR	89.unused.inksoft73.bigbytesystems.com
199.21.73.89	A	sponsoredink.com
199.21.73.90	PTR	90.unused.inksoft73.bigbytesystems.com
199.21.73.90	A	ahngear.com
199.21.73.93	A	customhit.com
199.21.73.97	PTR	97.unused.inksoft73.bigbytesystems.com
199.21.73.97	A	cargasonlinestore.com
199.21.73.97	A	northquincyathletics.com
199.21.73.98	A	davisnlee.com
199.21.73.107	PTR	107.unused.inksoft73.bigbytesystems.com
199.21.73.107	A	inkandsqueegee.net
199.21.73.108	A	pickscprint.com
199.21.73.109	A	theimagechicks.com
199.21.73.111	A	screendreamproductions.com
199.21.73.114	PTR	114.unused.inksoft73.bigbytesystems.com
199.21.73.114	A	fastshirt.com
199.21.73.115	A	causefortshirts.com
199.21.73.134	A	piescosports.com
199.21.73.152	PTR	152.unused.inksoft73.bigbytesystems.com
199.21.73.152	A	deerfielddesigns.com
199.21.73.161	PTR	161.unused.inksoft73.bigbytesystems.com
199.21.73.161	A	www.swimcapz.com
199.21.73.161	A	swimcapz.com
199.21.73.164	A	funkymonkeytees.net
199.21.73.168	PTR	168.unused.inksoft73.bigbytesystems.com
199.21.73.169	PTR	169.unused.inksoft73.bigbytesystems.com
199.21.73.169	A	photohausbranding.com
199.21.73.174	A	atomapparelusa.com
199.21.73.178	PTR	178.unused.inksoft73.bigbytesystems.com
199.21.73.179	PTR	179.unused.inksoft73.bigbytesystems.com
199.21.73.179	A	fugink.com
199.21.73.180	A	stores.shirtshack.us
199.21.73.183	A	www.absolutelycustom.com
199.21.73.184	A	myprintpeople.com
199.21.73.189	A	accentstees.com
199.21.73.250	A	qa.inksoft.com
199.21.73.250	A	goldenskyconstruction.com
199.21.73.252	A	decoration.alphabroder.ca
199.21.73.252	A	alphabroder.inksoft.com
199.21.76.22	A	basementdefender.com
199.21.76.60	A	barstoolsports.net
199.21.76.60	A	www.barstoolsports.net
199.21.76.74	A	by2b41wd4jqw159mfrk1ilb6ev.com
199.21.76.77	A	down.heheelibom.com
199.21.76.77	A	oahefaefoehgfueuu.in
199.21.76.78	A	tkgqbijljzptbmbisougxljtl.com
199.21.76.81	A	musicgreat.net
199.21.76.81	A	r1.brov.org
199.21.76.81	A	n3.brov.org
199.21.76.88	A	xvhkeeajf.info
199.21.76.88	A	aczgjwktca.info
199.21.76.88	A	ajbtsvbbk.info
199.21.76.115	A	mastercardmail.com
199.21.77.12	A	www.eloucks.com
199.21.77.12	A	eloucks.com
199.21.78.68	A	avp-dbbackup-03302017.avpnet.us
199.21.78.68	A	primary-sip.avpnet.us
199.21.78.68	A	realm.avpnet.us
199.21.79.4	A	s9t.com
199.21.79.4	A	chotii.in
199.21.79.20	A	mail.lonakconnect.com
199.21.79.122	A	echogis.com
199.21.79.122	A	echogis.net
199.21.79.124	A	echofld.net
199.21.79.162	A	warrantysquad.com
199.21.79.165	PTR	datingatron.net
199.21.79.167	A	weightshare.com
199.21.79.170	A	scoresstation.com