Robtex

Up: 217.65.36.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 217.65.36.0/25
Down right: 217.65.36.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.65.36.4	PTR	ip-217-65-36-4.purepeak.com
217.65.36.45	A	startapp-lb2-nj1.purepeak.com
217.65.36.100	PTR	ip-5-104-241-100.purepeak.com
217.65.36.102	PTR	ip-217-65-36-102.purepeak.com
217.65.36.102	A	bottomapp.com
217.65.36.127	PTR	ip-5-104-241-127.purepeak.com
217.65.36.141	PTR	ip-217-65-36-141.purepeak.com
217.65.36.141	A	sc2s.startappnetwork.com
217.65.36.141	A	geo.startappservice.com
217.65.36.142	PTR	ip-217-65-36-142.purepeak.com
217.65.36.142	A	sc2s.startappnetwork.com
217.65.36.142	A	trackimpression.com
217.65.36.151	PTR	ip-217-65-36-151.purepeak.com
217.65.36.152	PTR	ip-217-65-36-152.purepeak.com
217.65.36.152	A	apperhand.com
217.65.36.152	A	www.apperhand.com
217.65.36.156	A	api.startapp.com
217.65.36.201	PTR	ip-217-65-36-201.purepeak.com
217.65.36.201	A	abakasrt.startappexchange.com
217.65.36.201	A	nj.startappservice.com
217.65.36.202	PTR	ip-217-65-36-202.purepeak.com
217.65.36.202	A	abakasrt.startappexchange.com
217.65.36.202	A	nj.startappservice.com
217.65.36.203	PTR	ip-217-65-36-203.purepeak.com
217.65.36.203	A	abakasrt.startappexchange.com
217.65.36.203	A	nj.startappservice.com
217.65.36.204	PTR	ip-217-65-36-204.purepeak.com
217.65.36.204	A	abakasrt.startappexchange.com
217.65.36.204	A	nj.startappservice.com
217.65.36.213	PTR	ip-217-65-36-213.purepeak.com
217.65.36.213	A	searchmobileonline.com
217.65.36.213	A	www.searchmobileonline.com
217.65.36.222	PTR	ip-217-65-36-222.purepeak.com
217.65.36.222	A	adv-id-data.startappservice.com
217.65.36.230	PTR	ip-217-65-36-230.purepeak.com
217.65.36.230	A	nj-api.startappdata.com
217.65.36.250	PTR	ip-5-104-241-250.purepeak.com