Robtex

Up: 205.139.8.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 205.139.10.0/24
Down right: 205.139.11.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
205.139.10.22	PTR	mail.giordanomail.com
205.139.10.22	A	westmountmail.com
205.139.10.22	A	mail.westmountmail.com
205.139.10.25	PTR	mail.criticaledgegroup.com
205.139.10.29	A+PTR	mail.accustandard.com
205.139.10.34	PTR	ctculture.org
205.139.10.52	PTR	wan.marennapia.com
205.139.10.54	A+PTR	wan2.hrpassociates.com
205.139.10.64	PTR	mail.cheneyandco.com
205.139.10.77	PTR	mail.riccio-beletsky.com
205.139.10.78	A+PTR	mail2.mhact.com
205.139.10.78	A	mail2.mrhp.org
205.139.10.112	A	blazzardlaw.com
205.139.10.113	PTR	mail.maritimetrading.net
205.139.10.121	PTR	exchange.guilfordracquet.com
205.139.10.143	PTR	mail.ptsc.ws
205.139.10.171	PTR	mail.hangwithme.com
205.139.10.171	A	hangathome.com
205.139.10.171	A	mail.hangathome.com
205.139.10.183	PTR	mail.uccdive.com
205.139.10.198	PTR	mail.cttrails.org
205.139.10.214	PTR	mail.cilhomes.org
205.139.10.252	PTR	issmail.securityiss.com
205.139.10.254	A	mail.platinumken.com
205.139.10.254	A	ns.platinumken.com
205.139.11.188	A	mail.docro.com
205.139.11.250	A	interjet.docro.com