Robtex

Up: 204.132.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 204.133.0.0/17
Down right: 204.133.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.133.5.16	PTR	test.efurn.com
204.133.7.252	PTR	ns1.bronsons.com
204.133.7.253	PTR	ns2.bronsons.com
204.133.10.200	A+PTR	mail1.teampdc.com
204.133.10.200	A	mail.teampdc.com
204.133.10.201	A+PTR	mail2.teampdc.com
204.133.10.207	A	dcsvc1.pdcdmz.com
204.133.18.2	PTR	mail.dropsupplies.com
204.133.21.40	A	204.133.21-host40.marmot.org
204.133.21.140	A	mx4.slg400.com
204.133.21.140	A	slg400.com
204.133.25.66	PTR	www.pgea.com
204.133.25.69	PTR	mail.1410grant.com
204.133.30.2	A	mail.all-phasegj.com
204.133.30.5	A	204-133-30-5.dia.static.qwest.net
204.133.30.8	A	204-133-30-8.dia.static.qwest.net
204.133.30.11	A	204-133-30-11.dia.static.qwest.net
204.133.31.10	A	cblife.com
204.133.31.10	A	www.cblife.com
204.133.31.98	A	204-133-31-98.dia.static.qwest.net
204.133.31.122	A	204-133-31-122.dia.static.qwest.net
204.133.35.34	A	mail.aiacolorado.org
204.133.35.147	A	mail.enlaso.com
204.133.35.149	A	www.enlaso.com
204.133.35.149	A	translatelegaldocs.com
204.133.38.67	PTR	mail.spectranetics.com
204.133.38.67	A	mail3.spectranetics.com
204.133.38.68	A	mail2.spectranetics.com
204.133.38.71	PTR	mobileiron.spectranetics.com
204.133.38.76	A	test.spectranetics.com
204.133.38.128	A	204-133-38-128.dia.static.qwest.net
204.133.39.25	A+PTR	ns1.wc-co.net
204.133.39.26	A+PTR	ns2.wc-co.net
204.133.39.27	A+PTR	ns3.wc-co.net
204.133.39.28	A	ns4.wc-co.net
204.133.95.2	PTR	srdk1.csn.net
204.133.95.5	PTR	techcomm.com
204.133.117.17	A	dex.tv
204.133.117.17	A	pickupyourdex.com
204.133.117.17	A	selectyourdex.com
204.133.117.18	PTR	sm.dexinternet.com
204.133.127.76	A	gartnergroup.org
204.133.131.100	PTR	100-131-133-204.static.nbm.com
204.133.137.8	A	204-133-137-8.dia.static.qwest.net
204.133.137.9	A	204-133-137-9.dia.static.qwest.net
204.133.137.10	A	204-133-137-10.dia.static.qwest.net
204.133.137.12	A	204-133-137-12.dia.static.qwest.net
204.133.153.88	A+PTR	204-133-153-88.dia.static.qwest.net
204.133.153.88	A	ciscocems.com
204.133.153.88	A	www.ciscocems.com
204.133.153.113	A	mail.milehighbanks.com
204.133.153.162	PTR	pmimail.dropsupplies.com
204.133.159.65	A	aldmail.ald.lib.co.us
204.133.161.2	A	mail.marketweb.com
204.133.161.3	A	ymcasite.org
204.133.161.20	A	marketweb.com
204.133.161.20	A	www.marketweb.com
204.133.173.25	A	www.morgancountyinfo.net
204.133.173.25	A	morgancountyinfo.org
204.133.173.25	A	morgancountyinfo.net
204.133.173.242	A	hostmaster.golfingreeley.com
204.133.174.66	A	204-133-174-66.dia.static.qwest.net
204.133.174.130	A	mail.fnbcortez.com
204.133.175.116	A	lgbteqlt.com
204.133.175.116	A	www.denveria.com
204.133.175.116	A	eqltindex.com
204.133.177.0	PTR	204-133-177-0.dia.static.qwest.net
204.133.177.2	A	ns.freespeech.org
204.133.177.3	A+PTR	204-133-177-3.dia.static.qwest.net
204.133.177.3	A	fs.freespeech.org
204.133.177.3	A	ns2.freespeech.org
204.133.178.106	A+PTR	sms.commnetwireless.com
204.133.178.107	PTR	sms2.commnetwireless.com
204.133.178.201	PTR	inet.commnetwireless.com
204.133.180.5	A	204-133-180-5.dia.static.qwest.net
204.133.180.19	A	204-133-180-19.dia.static.qwest.net
204.133.180.22	A	204-133-180-22.dia.static.qwest.net
204.133.180.24	A	204-133-180-24.dia.static.qwest.net
204.133.182.186	A	mail.associatedglass.com
204.133.183.97	A	204-133-183-97.dia.static.qwest.net
204.133.183.99	A	204-133-183-99.dia.static.qwest.net
204.133.183.105	A	204-133-183-105.dia.static.qwest.net
204.133.183.110	A	204-133-183-110.dia.static.qwest.net
204.133.184.29	A	remotemail.lenderlive.com
204.133.184.29	A	securemail.lenderlive.com
204.133.184.199	A+PTR	mail.lenderlive.com
204.133.184.199	PTR	nospam.lenderlive.com
204.133.184.199	PTR	ns2.lenderlive.com
204.133.187.1	A+PTR	204-133-187-1.dia.static.qwest.net
204.133.187.7	A	204-133-187-7.dia.static.qwest.net
204.133.187.8	A	204-133-187-8.dia.static.qwest.net
204.133.187.14	A	204-133-187-14.dia.static.qwest.net
204.133.214.86	A+PTR	204-133-214-86.dia.static.qwest.net
204.133.214.122	A+PTR	204-133-214-122.dia.static.qwest.net
204.133.214.194	A	dgm21.com
204.133.215.115	A	cjroofingcrm.com
204.133.215.130	A	204-133-215-130.dia.static.qwest.net
204.133.215.178	A	mail.denrescue.org
204.133.215.178	A	mail.fortcollinsrescue.org
204.133.216.44	PTR	204-133-216-44.dia.static.qwest.net
204.133.216.44	A	ns1.ftpsllc.net.infinx.net
204.133.216.44	A	mail.springbokservices.com
204.133.218.51	PTR	www.cabs.com
204.133.218.52	PTR	exch1.cabs.com
204.133.225.2	A	*.wyobuildingsupply.com
204.133.225.50	A	www.garcoschools.org
204.133.225.50	A	garcoschools.org
204.133.225.50	A	204-133-225-50.dia.static.qwest.net
204.133.227.1	PTR	mail.protogenic.com
204.133.227.1	PTR	www.protogenic.com
204.133.227.234	A	mail.diec-america.com
204.133.228.14	A	telluride.k12.co.us
204.133.247.101	PTR	dhqhp1.dot.state.co.us
204.133.247.102	PTR	dhq02v.dot.state.co.us
204.133.253.0	PTR	204-133-253-0.dia.static.qwest.net
204.133.253.1	PTR	resi.com
204.133.253.1	A+PTR	204-133-253-1.dia.static.qwest.net
204.133.253.6	A	204-133-253-6.dia.static.qwest.net
204.133.253.7	A	204-133-253-7.dia.static.qwest.net
204.133.253.8	A	204-133-253-8.dia.static.qwest.net
204.133.254.11	A	rampcast.vaisala.com