Robtex

Up: 152.163.0.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 152.163.0.0/23
Down right: 152.163.2.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
152.163.0.5	PTR	core1-atc-xe-0-2-0.net.aol.com
152.163.0.27	A+PTR	axm-atc-shared-a-vla300.lb.aol.com
152.163.0.65	A+PTR	imap-a-atc-a.mx.aol.com
152.163.0.65	A	open.imap.aol.com
152.163.0.66	A+PTR	imap-b-atc-a.mx.aol.com
152.163.0.66	A	open.imap.aol.com
152.163.0.67	A+PTR	mailin-05.mail.aol.com
152.163.0.67	A+PTR	mtain-a-atc-a.mx.aol.com
152.163.0.67	A+PTR	relay.mx.aol.com
152.163.0.68	A+PTR	mailin-05.mail.aol.com
152.163.0.68	A+PTR	mtain-b-atc-a.mx.aol.com
152.163.0.68	A+PTR	relay.mx.aol.com
152.163.0.69	PTR	mtaout-a-atc-a.mx.aol.com
152.163.0.97	PTR	imap-a-atc-b.mx.aol.com
152.163.0.97	A	open.imap.aol.com
152.163.0.98	A+PTR	imap-b-atc-b.mx.aol.com
152.163.0.98	A	open.imap.aol.com
152.163.0.99	A+PTR	mailin-05.mail.aol.com
152.163.0.99	PTR	mtain-a-atc-b.mx.aol.com
152.163.0.99	A+PTR	relay.mx.aol.com
152.163.0.100	A+PTR	mailin-05.mail.aol.com
152.163.0.100	A+PTR	mtain-b-atc-b.mx.aol.com
152.163.0.100	A+PTR	relay.mx.aol.com
152.163.0.101	PTR	mtaout-a-atc-b.mx.aol.com
152.163.1.207	PTR	prodwebmail-wmail-atc-b.evip.aol.com
152.163.1.207	A	mail.aol.com.aol.akadns.net
152.163.1.207	A	email.aol.de
152.163.1.208	A	webmail1.webmail.aol.com
152.163.1.213	A+PTR	webmailcal-atc-b.evip.aol.com
152.163.1.213	A	webmailcal.egslb.aol.com
152.163.1.239	PTR	prodwebmail-wmail-atc-c.evip.aol.com
152.163.1.239	A	mail.aol.com.aol.akadns.net
152.163.1.239	A	email.aol.de
152.163.1.240	A	webmail1.webmail.aol.com
152.163.1.245	A+PTR	webmailcal-atc-c.evip.aol.com
152.163.1.245	A	webmailcal.egslb.aol.com
152.163.2.1	A+PTR	daha-atc-shared-a.evip.aol.com
152.163.2.1	A+PTR	daha-02.ns.aol.com
152.163.2.150	A+PTR	apimail-cs-zip-atc-b.evip.aol.com
152.163.2.150	A	api.mail.aol.com.aol.akadns.net
152.163.2.150	A	api.mail.aol.com
152.163.2.152	A+PTR	caldav-zip-atc-b.evip.aol.com
152.163.2.169	A	sent-confirmation.mail.aol.com
152.163.2.171	A	awscardav.egslb.aol.com
152.163.2.174	PTR	cram-zip-atc-b.evip.aol.com
152.163.2.174	A	cram.egslb.aol.com
152.163.2.176	A+PTR	wsps-prod-fe-zip-atc-b.evip.aol.com
152.163.2.176	A	webmail.aolgadgets.com
152.163.2.183	A+PTR	altomail.com
152.163.2.186	A	awscaldav.egslb.aol.com
152.163.3.65	PTR	imap-a-atc-c.mx.aol.com
152.163.3.66	PTR	imap-b-atc-c.mx.aol.com
152.163.3.67	A+PTR	mtain-a-atc-c.mx.aol.com
152.163.3.67	A	mwa.relay.verizon.net