Robtex

Up: 204.111.0.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 204.111.0.0/25
Down right: 204.111.0.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.111.0.1	PTR	va-asbn-inet-1.0.111.204.in-addr.arpa
204.111.0.58	A+PTR	blackfin.shentel.net
204.111.0.58	A	ashburn.speedtest.shentel.net
204.111.0.114	PTR	mail.edcus.com
204.111.0.114	A	bermudezministries.com
204.111.0.114	A	edc-movestar.com
204.111.0.203	A+PTR	mail1.shelor.com
204.111.0.203	A	www.impactgraphicsva.com
204.111.0.203	A	impactgraphicsva.com