Robtex

Up: 199.21.72.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 199.21.73.0/25
Down right: 199.21.73.128/25
(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
199.21.73.10	A	quote-maker.com
199.21.73.11	PTR	11.unused.inksoft73.bigbytesystems.com
199.21.73.11	A	demo.inksoft.com
199.21.73.11	A	ssl11.inksoft.com
199.21.73.20	PTR	20.unused.inksoft73.bigbytesystems.com
199.21.73.20	A	tshirtjunkie.net
199.21.73.20	A	affinity-graphics.com
199.21.73.21	PTR	21.unused.inksoft73.bigbytesystems.com
199.21.73.21	A	rbstore.biz
199.21.73.21	A	wichitaclothingcompany.com
199.21.73.22	PTR	22.unused.inksoft73.bigbytesystems.com
199.21.73.22	A	yourxpressions.com
199.21.73.22	A	supercheaptees.com
199.21.73.23	PTR	23.unused.inksoft73.bigbytesystems.com
199.21.73.23	A	the401studio.com
199.21.73.23	A	inkthread.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	PTR	28.unused.inksoft73.bigbytesystems.com
199.21.73.28	A	eastleyapparel.com
199.21.73.28	A	veritasthreads.com
199.21.73.29	PTR	29.unused.inksoft73.bigbytesystems.com
199.21.73.29	A	customgiftclub.com
199.21.73.29	A	ssl29.inksoft.com
199.21.73.30	PTR	30.unused.inksoft73.bigbytesystems.com
199.21.73.30	A	theinfinitydesigngroup.com
199.21.73.30	A	fioprints.com
199.21.73.31	PTR	31.unused.inksoft73.bigbytesystems.com
199.21.73.31	A	findashirt.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	PTR	36.unused.inksoft73.bigbytesystems.com
199.21.73.36	A	twinetees.com
199.21.73.37	A	giftgolfballs.com
199.21.73.37	A	miniaturebaseballbats.com
199.21.73.37	A	scenicsurfsigns.com
199.21.73.39	PTR	39.unused.inksoft73.bigbytesystems.com
199.21.73.39	A	bjscustom.net
199.21.73.39	A	wichitascreenprinting.com
199.21.73.43	A	causefortshirts.com
199.21.73.46	PTR	46.unused.inksoft73.bigbytesystems.com
199.21.73.46	A	webbsuniforms.com
199.21.73.50	PTR	50.unused.inksoft73.bigbytesystems.com
199.21.73.54	PTR	54.unused.inksoft73.bigbytesystems.com
199.21.73.54	A	mail.oshirtsprinting.com
199.21.73.54	A	teeosk.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	PTR	60.unused.inksoft73.bigbytesystems.com
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	PTR	71.unused.inksoft73.bigbytesystems.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
199.21.73.79	PTR	79.unused.inksoft73.bigbytesystems.com
199.21.73.79	A	www.t-shirtesp.com
199.21.73.79	A	t-shirtesp.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
199.21.73.83	A	swag.somethinginked.com
199.21.73.84	PTR	84.unused.inksoft73.bigbytesystems.com
199.21.73.84	A	inkaphoria.com
199.21.73.85	PTR	85.unused.inksoft73.bigbytesystems.com
199.21.73.85	A	weprintyardsigns.com
199.21.73.86	PTR	86.unused.inksoft73.bigbytesystems.com
199.21.73.86	A	threadsusa.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
199.21.73.159	PTR	159.unused.inksoft73.bigbytesystems.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	PTR	164.unused.inksoft73.bigbytesystems.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	PTR	174.unused.inksoft73.bigbytesystems.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
199.21.73.181	PTR	181.unused.inksoft73.bigbytesystems.com
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
199.21.73.254	PTR	254.unused.inksoft73.bigbytesystems.com
199.21.73.254	A	signandbannersoftware.com
199.21.73.254	A	oversizecloseouts.com