Robtex

Up: 13.12.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 13.13.0.0/17
Down right: 13.13.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
13.13.0.9	A	b0801-tnl3.swschz.extranet.xerox.com
13.13.0.14	A	miller.ext.useastgw.xerox.com
13.13.0.28	A	qa-lab-tnl4-h3.swschz.extranet.xerox.com
13.13.0.30	A	qa-lab-tnl4-h5.swschz.extranet.xerox.com
13.13.1.0	PTR	panoramix-tnl6-net.swschz.extranet.xerox.com
13.13.1.1	A+PTR	panoramix-tnl6.swschz.extranet.xerox.com
13.13.1.14	A	moltar-tnl10-h1.swschz.extranet.xerox.com
13.13.13.1	A	bkis.vn
13.13.13.13	A	xymadamiao.com
13.13.13.13	A	intranet.it
13.13.13.13	A	dx600.com
13.13.16.1	A+PTR	baryon.ext.useastgw.xerox.com
13.13.16.1	A	tilleti.com
13.13.16.2	PTR	meson.ext.useastgw.xerox.com
13.13.24.93	A	eatingndastreets.club
13.13.34.56	A	1111676.com
13.13.36.2	A	iris-b2b.ext.useastgw.xerox.com
13.13.36.3	PTR	siri-b2b.ext.useastgw.xerox.com
13.13.36.11	A+PTR	usa0300cnt1-13-13-36.ext.useastgw.xerox.com
13.13.36.12	A	usa0300cnt2-13-13-36.ext.useastgw.xerox.com
13.13.36.25	A	xip-nokia1-b2b.ext.useastgw.xerox.com
13.13.40.11	A	www.xerox.com.mx
13.13.40.11	A	graphicsprinters.com
13.13.40.11	A	xeroxpremierpartners.com
13.13.42.81	A+PTR	usa0300vm2748-ext.epn.useastgw.xerox.com
13.13.42.82	A+PTR	usa0300vm2749-ext.epn.useastgw.xerox.com
13.13.44.10	A	b2bvpn-frontier-hsrp.ext.useastgw.xerox.com
13.13.44.12	A	cyllene-siri-p.ext.useastgw.xerox.com
13.13.56.38	A	usa0300rwp3-ext.epn.useastgw.xerox.com
13.13.56.119	A	f5-virtual-ip-13-13-56-119.epn.useastgw.xerox.com
13.13.56.126	A	usa0300xmg001-ext.epn.useastgw.xerox.com
13.13.56.126	A	remserv00.support.xerox.com
13.13.57.32	PTR	testnic.external.xerox.com
13.13.57.32	A	acs-inc.com
13.13.57.32	A	vadersystems.com
13.13.59.15	PTR	www2.accounts.xerox.com
13.13.59.129	A	xog-13-13-59-129.epn.useastgw.xerox.com
13.13.59.142	A	xog-13-13-59-142.epn.useastgw.xerox.com
13.13.59.157	A	xog-13-13-59-157.epn.useastgw.xerox.com
13.13.59.158	A	xog-13-13-59-158.epn.useastgw.xerox.com
13.13.63.6	A	0300rwp-vip-13-13-63-6.epn.useastgw.xerox.com
13.13.63.6	A	rp-webboard.idns.xerox.com
13.13.63.8	A	rp-meridian.idns.xerox.com
13.13.72.96	A+PTR	pcappst.corp.xerox.com
13.13.126.3	PTR	iris-126.ext.useastgw.xerox.com
13.13.126.133	A+PTR	mcgruff.ext.useastgw.xerox.com
13.13.128.2	PTR	ida-128.epn.extranet.xerox.com
13.13.128.25	A	lmxfwa.epn.useastgw.xerox.com
13.13.128.26	A	lmxfwb.epn.useastgw.xerox.com
13.13.128.58	A	rp-vip27.epn.extranet.xerox.com
13.13.128.206	A	wx02-vh47.epn.useastgw.xerox.com
13.13.129.165	A	ssl-vip129-165.epn.useastgw.xerox.com
13.13.129.172	A	ssl-vip129-172.epn.useastgw.xerox.com
13.13.129.179	A	ssl-vip129-179.epn.useastgw.xerox.com
13.13.129.185	A	ssl-vip129-185.epn.useastgw.xerox.com
13.13.130.186	A	usa0300esg99e-poc186.epn.useastgw.xerox.com
13.13.130.196	A	usa0300esg01e-sp-xim.epn.useastgw.xerox.com
13.13.130.198	A	usa0300esg01e-sp-train.epn.useastgw.xerox.com
13.13.130.204	A	usa0300esg02e-sp-xna.epn.useastgw.xerox.com
13.13.132.130	A	docushare.xerox.com
13.13.132.225	A	usa0300ca001.xerox.com
13.13.134.30	A	drivers.epn.extranet.xerox.com
13.13.134.49	A	usa0300ap406-2e.ext.useastgw.xerox.com
13.13.134.104	A	usa0300gepcux09-1e.gepc.xerox.com
13.13.137.1	A+PTR	pion.ext.useastgw.xerox.com
13.13.138.12	A+PTR	curly.xerox.com
13.13.138.16	A+PTR	asteria.ext.useastgw.xerox.com
13.13.138.16	A	asteria.idns.xerox.com
13.13.138.16	A	asteria.xerox.com
13.13.138.17	PTR	astra.ext.useastgw.xerox.com
13.13.142.129	A+PTR	css-vip142-129.epn.useastgw.xerox.com
13.13.146.108	A+PTR	halley.ext.useastgw.xerox.com
13.13.146.109	A+PTR	yellah.ext.useastgw.xerox.com
13.13.148.243	A+PTR	ace-vip-13-13-148-243.epn.useastgw.xerox.com
13.13.148.243	A+PTR	dcs-web-lb.idns-ext.xerox.com
13.13.148.243	A	fccfa.xrxgsn.com
13.13.148.251	PTR	ace-vip-13-13-148-251.epn.useastgw.xerox.com
13.13.148.251	A	tls.support.xerox.com
13.13.157.5	A+PTR	tig-nat-13-13-157-5.ext.useastgw.xerox.com
13.13.240.1	A+PTR	vgate-epn.ext.useastgw.xerox.com
13.13.241.70	A	hradmin2-nat.ext.useastgw.xerox.com
13.13.241.75	A	griff-nat.ext.useastgw.xerox.com
13.13.241.76	A	chern-nat.ext.useastgw.xerox.com
13.13.241.85	A	schum-nat.ext.useastgw.xerox.com
13.13.254.16	A	whiteface.xerox.com