Robtex

Up: 216.229.34.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 216.229.34.0/25
Down right: 216.229.34.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.229.34.21	PTR	uccs-gw.saf.cos.sta.pcisys.net
216.229.34.21	A	bkingnutrisiotak.com
216.229.34.21	A	netalien.biz
216.229.34.66	A+PTR	a1393.cos.pcisys.net
216.229.34.70	A	www.petrocalc.info
216.229.34.70	A	petrocalc.info
216.229.34.77	PTR	pcipanda.cos.pcisys.net
216.229.34.77	A	*.microcraftsbigcolor.com
216.229.34.77	A	mail.microcraftsbigcolor.com
216.229.34.84	A+PTR	grhaag.cos.pcisys.net
216.229.34.84	A	mailhost.celis-semi.com
216.229.34.138	A	a1202.pcisys.net
216.229.34.140	A+PTR	jayhawk23486.pcisys.net
216.229.34.163	PTR	pcirunbell.pcisys.net
216.229.34.163	A	avail.pcisys.net
216.229.34.165	PTR	tristate.pcisys.net
216.229.34.165	A	avail.pcisys.net
216.229.34.167	PTR	shauna.pcisys.net
216.229.34.167	A	avail.pcisys.net
216.229.34.167	A	kittani.net
216.229.34.168	A+PTR	avail.pcisys.net
216.229.34.169	A+PTR	avail.pcisys.net
216.229.34.170	PTR	contractmech.pcisys.net
216.229.34.170	A	avail.pcisys.net
216.229.34.171	PTR	contractmech2.pcisys.net
216.229.34.171	A	avail.pcisys.net
216.229.34.172	PTR	avail.pcisys.net
216.229.34.173	PTR	tabc.pcisys.net
216.229.34.173	A	avail.pcisys.net
216.229.34.174	PTR	avail.pcisys.net
216.229.34.184	A	e-insurancestore.com
216.229.34.187	PTR	prologic.pcisys.net
216.229.34.187	A	avail.pcisys.net