Robtex

Up: 64.81.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 64.81.0.0/20
Down right: 64.81.16.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.81.0.0	A+PTR	dsl081-000-000.sea1.dsl.speakeasy.net
64.81.0.1	PTR	dsl081-000-000.sea1.dsl.speakeasy.net
64.81.0.32	PTR	dsl081-000-032.sea1.dsl.speakeasy.net
64.81.0.48	A	dsl081-000-048.sea1.dsl.speakeasy.net
64.81.0.52	A	dsl081-000-052.sea1.dsl.speakeasy.net
64.81.0.76	A	dsl081-000-076.sea1.dsl.speakeasy.net
64.81.0.79	A	dsl081-000-079.sea1.dsl.speakeasy.net
64.81.0.96	A+PTR	dsl081-000-096.sea1.dsl.speakeasy.net
64.81.0.128	A+PTR	dsl081-000-128.sea1.dsl.speakeasy.net
64.81.0.135	A	dsl081-000-135.sea1.dsl.speakeasy.net
64.81.0.136	A	dsl081-000-136.sea1.dsl.speakeasy.net
64.81.0.144	A	dsl081-000-144.sea1.dsl.speakeasy.net
64.81.0.192	A+PTR	dsl081-000-192.sea1.dsl.speakeasy.net
64.81.1.1	A+PTR	dsl081-001-001.sea1.dsl.speakeasy.net
64.81.1.2	A+PTR	dsl081-001-002.sea1.dsl.speakeasy.net
64.81.1.3	A+PTR	dsl081-001-003.sea1.dsl.speakeasy.net
64.81.1.123	A	dsl081-001-123.sea1.dsl.speakeasy.net
64.81.1.222	A	mail.evo-gear.com
64.81.1.222	A	mail2.evo-gear.com
64.81.1.222	A	evo-gear.org
64.81.2.2	A	dsl081-002-002.sea1.dsl.speakeasy.net
64.81.2.5	A	dsl081-002-005.sea1.dsl.speakeasy.net
64.81.2.23	A	dsl081-002-023.sea1.dsl.speakeasy.net
64.81.2.92	A	optimystic.com
64.81.3.9	A	dsl081-003-009.sea1.dsl.speakeasy.net
64.81.3.34	PTR	mail.tcloud.com
64.81.3.36	A	dsl081-003-036.sea1.dsl.speakeasy.net
64.81.3.82	A	ns3.newtonlabs.com
64.81.3.82	A	ns1.newtonlabs.com
64.81.3.88	A	ns2.newtonlabs.com
64.81.4.5	A	dsl081-004-005.sea1.dsl.speakeasy.net
64.81.4.15	A	dsl081-004-015.sea1.dsl.speakeasy.net
64.81.4.16	A	dsl081-004-016.sea1.dsl.speakeasy.net
64.81.4.20	A	dsl081-004-020.sea1.dsl.speakeasy.net
64.81.4.32	A	dsl081-004-032.sea1.dsl.speakeasy.net
64.81.4.34	A	dsl081-004-034.sea1.dsl.speakeasy.net
64.81.4.38	A	dsl081-004-038.sea1.dsl.speakeasy.net
64.81.4.42	A	dsl081-004-042.sea1.dsl.speakeasy.net
64.81.4.72	A	dsl081-004-072.sea1.dsl.speakeasy.net
64.81.4.74	A	dsl081-004-074.sea1.dsl.speakeasy.net
64.81.4.75	A	dsl081-004-075.sea1.dsl.speakeasy.net
64.81.4.83	A	dsl081-004-083.sea1.dsl.speakeasy.net
64.81.4.96	A	dsl081-004-096.sea1.dsl.speakeasy.net
64.81.4.98	A	dsl081-004-098.sea1.dsl.speakeasy.net
64.81.4.103	A	dsl081-004-103.sea1.dsl.speakeasy.net
64.81.4.105	A	dsl081-004-105.sea1.dsl.speakeasy.net
64.81.4.133	A	dsl081-004-133.sea1.dsl.speakeasy.net
64.81.4.134	A	dsl081-004-134.sea1.dsl.speakeasy.net
64.81.4.135	A	dsl081-004-135.sea1.dsl.speakeasy.net
64.81.4.139	A	dsl081-004-139.sea1.dsl.speakeasy.net
64.81.4.163	A	dsl081-004-163.sea1.dsl.speakeasy.net
64.81.4.168	A	dsl081-004-168.sea1.dsl.speakeasy.net
64.81.4.181	A	dsl081-004-181.sea1.dsl.speakeasy.net
64.81.4.184	A	dsl081-004-184.sea1.dsl.speakeasy.net
64.81.4.195	A	dsl081-004-195.sea1.dsl.speakeasy.net
64.81.4.201	A	dsl081-004-201.sea1.dsl.speakeasy.net
64.81.4.203	A	dsl081-004-203.sea1.dsl.speakeasy.net
64.81.4.224	A	dsl081-004-224.sea1.dsl.speakeasy.net
64.81.4.230	A	dsl081-004-230.sea1.dsl.speakeasy.net
64.81.4.231	A	dsl081-004-231.sea1.dsl.speakeasy.net
64.81.4.233	A	dsl081-004-233.sea1.dsl.speakeasy.net
64.81.6.34	PTR	mail.aquastar.com
64.81.6.66	A+PTR	various.misc.org
64.81.6.67	A	adhoc.misc.org
64.81.6.69	A	assorted.misc.org
64.81.6.70	A	motley.misc.org
64.81.6.116	A	dsl081-006-116.sea1.dsl.speakeasy.net
64.81.6.135	A	dsl081-006-135.sea1.dsl.speakeasy.net
64.81.6.152	A	gsmmercury.com
64.81.6.179	A	dsl081-006-179.sea1.dsl.speakeasy.net
64.81.6.184	A	dsl081-006-184.sea1.dsl.speakeasy.net
64.81.6.194	A	bluwaterbistro.com.2.0001.arsmtp.com
64.81.6.212	A	armco.net
64.81.6.232	A	dsl081-006-232.sea1.dsl.speakeasy.net
64.81.6.243	A	dsl081-006-243.sea1.dsl.speakeasy.net
64.81.6.247	A	dsl081-006-247.sea1.dsl.speakeasy.net
64.81.6.252	A	dsl081-006-252.sea1.dsl.speakeasy.net
64.81.8.99	A	mail.msftrec.com
64.81.8.105	A	dsl081-008-105.sea1.dsl.speakeasy.net
64.81.8.162	A+PTR	mail.mindrayusa.com
64.81.9.131	PTR	dsl081-009-131.sea1.dsl.speakeasy.net
64.81.9.131	A	tenw.org
64.81.9.194	A	gsanakamurach.info
64.81.10.3	PTR	dyson.tethers.com
64.81.10.66	PTR	mail.cfchildren.org
64.81.10.233	A	dsl081-010-233.sea1.dsl.speakeasy.net
64.81.11.106	A	mail.acbrokersinc.com
64.81.11.106	A	mx.acbrokersinc.com
64.81.11.180	A	mail.urbanscience.net
64.81.11.228	A	dsl081-011-228.sea1.dsl.speakeasy.net
64.81.12.0	A	dsl081-012-000.sea1.dsl.speakeasy.net
64.81.12.50	A+PTR	mail.paperlessconnect.com
64.81.13.229	A	www.russellempulse.com
64.81.13.229	A	russellempulse.com
64.81.13.246	A	dsl081-013-246.sea1.dsl.speakeasy.net
64.81.15.3	PTR	ip003.zzz.com
64.81.16.69	A	nsna.warakorn.com
64.81.16.69	A	dsl081-016-069.sfo1.dsl.speakeasy.net
64.81.16.69	A	nsna.springtms.com
64.81.16.186	A	tigerme.com
64.81.16.186	A	tigerme.org
64.81.16.186	A	chocatoa.com
64.81.16.255	A	brd081-016-000.dsl.speakeasy.net
64.81.17.198	A	flekadesign.com
64.81.18.186	A	vanguardlegato.com
64.81.18.200	A	dsl081-018-200.sfo1.dsl.speakeasy.net
64.81.19.53	A	dsl081-019-053.sfo1.dsl.speakeasy.net
64.81.19.54	A	dsl081-019-054.sfo1.dsl.speakeasy.net
64.81.19.55	A	dsl081-019-055.sfo1.dsl.speakeasy.net
64.81.19.56	A	dsl081-019-056.sfo1.dsl.speakeasy.net
64.81.20.35	A	mx01.bookbargainsonline.com
64.81.21.80	A	dsl081-021-080.nyc1.dsl.speakeasy.net
64.81.21.80	A	usacs.info
64.81.21.80	A	www.usadealerweb.com
64.81.21.85	A	usacs.net
64.81.21.210	A	dsl081-021-210.nyc1.dsl.speakeasy.net
64.81.22.3	PTR	mail.bccadd.org
64.81.22.172	A	dsl081-022-172.phl1.dsl.speakeasy.net
64.81.22.182	A	dsl081-022-182.phl1.dsl.speakeasy.net
64.81.22.222	A	phillytechno.org
64.81.22.252	A	dsl081-022-252.phl1.dsl.speakeasy.net
64.81.23.0	A+PTR	dsl081-023-000.nyc1.dsl.speakeasy.net
64.81.23.5	A	tollgroup.us
64.81.23.13	A	dsl081-023-013.nyc1.dsl.speakeasy.net
64.81.23.15	A	dsl081-023-015.nyc1.dsl.speakeasy.net
64.81.23.32	A+PTR	dsl081-023-032.nyc1.dsl.speakeasy.net
64.81.23.34	A+PTR	dsl081-023-034.nyc1.dsl.speakeasy.net
64.81.23.54	A	dsl081-023-054.nyc1.dsl.speakeasy.net
64.81.23.66	A+PTR	mail.eti-nj.com
64.81.23.66	A	public.eti-nj.com
64.81.23.67	A+PTR	dsl081-023-067.nyc1.dsl.speakeasy.net
64.81.23.72	A	dsl081-023-072.nyc1.dsl.speakeasy.net
64.81.23.97	A+PTR	dsl081-023-097.nyc1.dsl.speakeasy.net
64.81.23.117	A	dsl081-023-117.nyc1.dsl.speakeasy.net
64.81.23.125	A	dsl081-023-125.nyc1.dsl.speakeasy.net
64.81.23.128	A+PTR	dsl081-023-128.nyc1.dsl.speakeasy.net
64.81.23.129	A+PTR	dsl081-023-129.nyc1.dsl.speakeasy.net
64.81.23.130	A+PTR	dsl081-023-130.nyc1.dsl.speakeasy.net
64.81.23.134	A	dsl081-023-134.nyc1.dsl.speakeasy.net
64.81.23.171	A	dsl081-023-171.nyc1.dsl.speakeasy.net
64.81.23.176	A	dsl081-023-176.nyc1.dsl.speakeasy.net
64.81.23.177	A	dsl081-023-177.nyc1.dsl.speakeasy.net
64.81.23.181	A	dsl081-023-181.nyc1.dsl.speakeasy.net
64.81.23.201	A	dsl081-023-201.nyc1.dsl.speakeasy.net
64.81.23.210	A	dsl081-023-210.nyc1.dsl.speakeasy.net
64.81.23.214	A	dsl081-023-214.nyc1.dsl.speakeasy.net
64.81.23.217	A	dsl081-023-217.nyc1.dsl.speakeasy.net
64.81.23.227	PTR	mail.pressler-pressler.com
64.81.23.233	A	dsl081-023-233.nyc1.dsl.speakeasy.net
64.81.23.239	A	dsl081-023-239.nyc1.dsl.speakeasy.net
64.81.23.244	A	dsl081-023-244.nyc1.dsl.speakeasy.net
64.81.23.245	A	dsl081-023-245.nyc1.dsl.speakeasy.net
64.81.24.62	A	dsl081-024-062.sfo1.dsl.speakeasy.net
64.81.24.178	A	dsl081-024-178.sfo1.dsl.speakeasy.net
64.81.24.219	A	dsl081-024-219.sfo1.dsl.speakeasy.net
64.81.25.0	A	dsl081-025-000.sfo1.dsl.speakeasy.net
64.81.25.3	A	mx2.veraznet.com
64.81.25.26	A	dsl081-025-026.sfo1.dsl.speakeasy.net
64.81.25.162	PTR	briarglen.beck.org
64.81.26.68	A	smtp.wartnicklaw.com
64.81.27.0	A	dsl081-027-000.sfo1.dsl.speakeasy.net
64.81.27.71	A	mail.absolutelynominal.com
64.81.27.71	A	absolutelynominal.com
64.81.27.72	A	dsl081-027-072.sfo1.dsl.speakeasy.net
64.81.27.134	A	dsl081-027-134.sfo1.dsl.speakeasy.net
64.81.27.164	A	meglomedia.org
64.81.27.196	A	mx1.fensite.net
64.81.28.98	A	dsl081-028-098.sfo1.dsl.speakeasy.net
64.81.29.15	A	mail.idengines.net
64.81.30.131	PTR	dc1sf.doublefusion.com
64.81.30.224	PTR	dsl081-030-224.sfo1.dsl.speakeasy.net
64.81.30.226	PTR	dsl081-030-226.sfo1.dsl.speakeasy.net
64.81.30.227	PTR	mail.livedeal.com
64.81.31.69	A	filthykitty.com
64.81.31.243	A	dsl081-031-243.sfo1.dsl.speakeasy.net
64.81.31.255	A	dsl081-031-255.sfo1.dsl.speakeasy.net