Robtex

Up: 151.138.0.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 151.138.0.0/19
Down right: 151.138.32.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
151.138.1.28	A+PTR	ns1.idearcmedia.com
151.138.1.28	A+PTR	ns1.localsearch.com
151.138.1.28	A+PTR	ns1.superpages.com
151.138.2.30	A	superpages.gte.net
151.138.2.30	A	verizonsuperpages.com
151.138.2.30	A	www.verizonsuperpages.com
151.138.2.236	A	gteis.com
151.138.12.53	A	dev.superpersonalloans.com
151.138.12.53	A	dev.superhousecleaners.com
151.138.12.53	A	dev.supermovingpros.com
151.138.13.134	A+PTR	ftpprd1.superpages.com
151.138.13.134	A+PTR	ftps.superpages.com
151.138.13.134	A	dns1.superpages.com
151.138.13.135	PTR	ftpprd2.superpages.com
151.138.13.135	A+PTR	ftps.superpages.com
151.138.13.135	A	dns1.superpages.com
151.138.14.20	A	qa2-img1-origin.v.st1.yp.com
151.138.14.27	A	test-afweb.v.st1.yp.com
151.138.14.64	A	stage-shield.v.st1.yp.com
151.138.14.127	A	t.yp.com
151.138.14.244	A	lists.yellowpages.com
151.138.15.18	A	yellowpages.com
151.138.15.26	A	superpages.com
151.138.16.108	A	cfit-dk.dexknows.com
151.138.22.10	A+PTR	ns1.gslb.superpages.com
151.138.22.30	A+PTR	dexmediaverify.com
151.138.22.37	A+PTR	ypnbt.superpages.com
151.138.22.50	A	ns1.superyellowpages.com
151.138.22.50	A	superpages.com
151.138.22.50	A	buscar.superpages.com
151.138.22.64	A+PTR	m-stage.superpages.com
151.138.22.65	A+PTR	bidfeed.superpages.com
151.138.22.72	A	video.superpages.com
151.138.22.73	A	iarbiz.us
151.138.22.130	A	cgi.superpages.com
151.138.22.132	A+PTR	content.superpages.com
151.138.22.135	A	mpactions.superpages.com
151.138.22.136	A	superpages.dex-digital.com
151.138.22.195	A	bidweb.superpages.com
151.138.22.196	A	claimlisting.superpages.com
151.138.22.197	A	advertising.superpages.com
151.138.22.199	PTR	dexebill.com
151.138.22.199	A	my.dexmedia.com
151.138.23.18	A	neoapp-sb.superpages.com
151.138.23.30	PTR	update.supermedia.com
151.138.23.30	A	update.superpages.com
151.138.30.100	A+PTR	sp-dnsi1.superpages.com
151.138.47.4	A	infoblox-dns4.superpages.com
151.138.47.4	A	dnsinfoext.superpages.com
151.138.47.5	A+PTR	infoblox-dns5.superpages.com
151.138.47.6	A+PTR	infoblox-dns6.superpages.com
151.138.47.10	PTR	ns.idearcmedia.com
151.138.47.10	PTR	ns.localsearch.com
151.138.47.10	PTR	ns.superpages.com