Robtex

Up: 64.81.128.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 64.81.128.0/22
Down right: 64.81.132.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.81.129.60	PTR	dsl081-129-060.nyc1.dsl.speakeasy.net
64.81.130.29	A	thinktest.com
64.81.130.130	A	smtp01.harrywinston.com
64.81.131.26	A	dsl081-131-026.nyc1.dsl.speakeasy.net
64.81.132.219	A	theoldmole.net
64.81.133.2	A+PTR	dsl081-133-002.nyc1.dsl.speakeasy.net
64.81.133.4	A	dsl081-133-004.nyc1.dsl.speakeasy.net
64.81.133.29	A	dsl081-133-029.nyc1.dsl.speakeasy.net
64.81.133.30	A	dsl081-133-030.nyc1.dsl.speakeasy.net
64.81.133.53	A	dsl081-133-053.nyc1.dsl.speakeasy.net
64.81.133.54	A	dsl081-133-054.nyc1.dsl.speakeasy.net
64.81.133.70	A	dsl081-133-070.nyc1.dsl.speakeasy.net
64.81.133.71	A	dsl081-133-071.nyc1.dsl.speakeasy.net
64.81.133.76	A	dsl081-133-076.nyc1.dsl.speakeasy.net
64.81.133.77	A	dsl081-133-077.nyc1.dsl.speakeasy.net
64.81.133.79	A	dsl081-133-079.nyc1.dsl.speakeasy.net
64.81.133.83	A+PTR	dsl081-133-083.nyc1.dsl.speakeasy.net
64.81.133.89	PTR	mail.staffitinfo.com
64.81.133.90	A+PTR	dsl081-133-090.nyc1.dsl.speakeasy.net
64.81.133.93	A	dsl081-133-093.nyc1.dsl.speakeasy.net
64.81.133.96	A+PTR	dsl081-133-096.nyc1.dsl.speakeasy.net
64.81.133.99	A+PTR	dsl081-133-099.nyc1.dsl.speakeasy.net
64.81.133.102	A	dsl081-133-102.nyc1.dsl.speakeasy.net
64.81.133.103	A	dsl081-133-103.nyc1.dsl.speakeasy.net
64.81.133.104	A+PTR	dsl081-133-104.nyc1.dsl.speakeasy.net
64.81.133.114	PTR	rfsomx1.iqep.com
64.81.133.118	A	dsl081-133-118.nyc1.dsl.speakeasy.net
64.81.133.128	A+PTR	dsl081-133-128.nyc1.dsl.speakeasy.net
64.81.133.131	PTR	dsl081-133-131.nyc1.dsl.speakeasy.net
64.81.133.131	A	foodiefight.net
64.81.133.131	A	foodiefight.org
64.81.133.136	A+PTR	dsl081-133-136.nyc1.dsl.speakeasy.net
64.81.133.137	A+PTR	dsl081-133-137.nyc1.dsl.speakeasy.net
64.81.133.141	A	dsl081-133-141.nyc1.dsl.speakeasy.net
64.81.133.144	A+PTR	dsl081-133-144.nyc1.dsl.speakeasy.net
64.81.133.146	A+PTR	dsl081-133-146.nyc1.dsl.speakeasy.net
64.81.133.149	A	dsl081-133-149.nyc1.dsl.speakeasy.net
64.81.133.150	A	dsl081-133-150.nyc1.dsl.speakeasy.net
64.81.133.161	A+PTR	dsl081-133-161.nyc1.dsl.speakeasy.net
64.81.133.195	PTR	www.primedata.org
64.81.133.208	PTR	log.zoneedit.com
64.81.133.215	A	dsl081-133-215.nyc1.dsl.speakeasy.net
64.81.133.224	PTR	charlie.primedata.org
64.81.133.226	PTR	mail.ingenuit.com
64.81.133.237	A	dsl081-133-237.nyc1.dsl.speakeasy.net
64.81.133.238	A	dsl081-133-238.nyc1.dsl.speakeasy.net
64.81.133.246	A	dsl081-133-246.nyc1.dsl.speakeasy.net
64.81.133.251	A+PTR	dsl081-133-251.nyc1.dsl.speakeasy.net
64.81.133.253	A	dsl081-133-253.nyc1.dsl.speakeasy.net
64.81.133.254	A	dsl081-133-254.nyc1.dsl.speakeasy.net
64.81.134.1	PTR	er1.nyc1.speakeasy.net
64.81.134.15	A	sazhin.net
64.81.134.23	A	westcoastparrys.com
64.81.134.35	A	mailav3.jgallery.com
64.81.134.45	A	office.zocdoc.com
64.81.134.48	PTR	dsl081-134-048.nyc1.dsl.speakeasy.net
64.81.134.48	A	mail.annepohl.com
64.81.134.48	A	*.dopeworld.com
64.81.134.64	PTR	dsl081-134-064.nyc1.dsl.speakeasy.net
64.81.134.64	A	mail.gnhp.org
64.81.134.65	PTR	mail2.alfy.com
64.81.134.69	A	mail3.jgallery.com
64.81.134.69	A	dsl081-134-069.nyc1.dsl.speakeasy.net
64.81.134.213	A	mail.johnsonlightstudio.com
64.81.134.213	A	office.johnsonlightstudio.com
64.81.134.219	PTR	easeconsulting.com
64.81.134.234	A	dsl081-134-234.nyc1.dsl.speakeasy.net
64.81.134.234	A	aeonusa.com
64.81.135.5	A	dsl081-135-005.nyc1.dsl.speakeasy.net
64.81.135.8	A+PTR	dsl081-135-008.nyc1.dsl.speakeasy.net
64.81.135.11	A+PTR	dsl081-135-011.nyc1.dsl.speakeasy.net
64.81.135.16	A+PTR	dsl081-135-016.nyc1.dsl.speakeasy.net
64.81.135.29	A	dsl081-135-029.nyc1.dsl.speakeasy.net
64.81.135.38	A	dsl081-135-038.nyc1.dsl.speakeasy.net
64.81.135.57	A+PTR	dsl081-135-057.nyc1.dsl.speakeasy.net
64.81.135.63	A	sturgis.bigpig.com
64.81.135.64	PTR	sturgis2.bigpig.com
64.81.135.68	A	dsl081-135-068.nyc1.dsl.speakeasy.net
64.81.135.78	A	dsl081-135-078.nyc1.dsl.speakeasy.net
64.81.135.85	A	dsl081-135-085.nyc1.dsl.speakeasy.net
64.81.135.91	A+PTR	dsl081-135-091.nyc1.dsl.speakeasy.net
64.81.135.93	A	dsl081-135-093.nyc1.dsl.speakeasy.net
64.81.135.119	A	ntsnblts.com
64.81.135.120	A	mail.gadgetsman.us
64.81.135.135	A	dsl081-135-135.nyc1.dsl.speakeasy.net
64.81.135.142	A	dsl081-135-142.nyc1.dsl.speakeasy.net
64.81.135.148	A	dsl081-135-148.nyc1.dsl.speakeasy.net
64.81.135.154	A+PTR	dsl081-135-154.nyc1.dsl.speakeasy.net
64.81.135.160	A+PTR	dsl081-135-160.nyc1.dsl.speakeasy.net
64.81.135.168	A+PTR	dsl081-135-168.nyc1.dsl.speakeasy.net
64.81.135.174	A	dsl081-135-174.nyc1.dsl.speakeasy.net
64.81.135.178	A+PTR	dsl081-135-178.nyc1.dsl.speakeasy.net
64.81.135.184	A+PTR	dsl081-135-184.nyc1.dsl.speakeasy.net
64.81.135.188	A	dsl081-135-188.nyc1.dsl.speakeasy.net
64.81.135.192	A+PTR	dsl081-135-192.nyc1.dsl.speakeasy.net
64.81.135.198	A	dsl081-135-198.nyc1.dsl.speakeasy.net
64.81.135.201	A+PTR	dsl081-135-201.nyc1.dsl.speakeasy.net
64.81.135.238	A	dsl081-135-238.nyc1.dsl.speakeasy.net
64.81.135.239	A	dsl081-135-239.nyc1.dsl.speakeasy.net
64.81.135.240	A+PTR	dsl081-135-240.nyc1.dsl.speakeasy.net
64.81.135.241	A+PTR	dsl081-135-241.nyc1.dsl.speakeasy.net
64.81.135.244	A	dsl081-135-244.nyc1.dsl.speakeasy.net
64.81.135.254	A	dsl081-135-254.nyc1.dsl.speakeasy.net