Robtex

Up: 64.223.128.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 64.223.129.0/25
Down right: 64.223.129.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.223.129.9	A+PTR	static-64-223-129-9.man.east.myfairpoint.net
64.223.129.10	A+PTR	static-64-223-129-10.man.east.myfairpoint.net
64.223.129.31	A+PTR	static-64-223-129-31.man.east.myfairpoint.net
64.223.129.37	PTR	static-64-223-129-37.man.east.myfairpoint.net
64.223.129.44	A+PTR	static-64-223-129-44.man.east.myfairpoint.net
64.223.129.50	A+PTR	static-64-223-129-50.man.east.myfairpoint.net
64.223.129.58	A+PTR	static-64-223-129-58.man.east.myfairpoint.net
64.223.129.64	PTR	static-64-223-129-64.man.east.myfairpoint.net
64.223.129.65	A+PTR	static-64-223-129-65.man.east.myfairpoint.net
64.223.129.80	A+PTR	static-64-223-129-80.man.east.myfairpoint.net
64.223.129.87	A+PTR	static-64-223-129-87.man.east.myfairpoint.net
64.223.129.88	PTR	static-64-223-129-88.man.east.myfairpoint.net
64.223.129.88	A	www.seattlecriticalmass.org
64.223.129.88	A	serenity.ninjr.org
64.223.129.89	PTR	static-64-223-129-89.man.east.myfairpoint.net
64.223.129.89	A	swofa.netlosers.com
64.223.129.89	A	netlosers.com
64.223.129.94	A+PTR	static-64-223-129-94.man.east.myfairpoint.net
64.223.129.98	A+PTR	static-64-223-129-98.man.east.myfairpoint.net
64.223.129.107	A+PTR	static-64-223-129-107.man.east.myfairpoint.net
64.223.129.109	A+PTR	static-64-223-129-109.man.east.myfairpoint.net
64.223.129.115	A+PTR	static-64-223-129-115.man.east.myfairpoint.net
64.223.129.119	PTR	mail1.cpwarchitects.com
64.223.129.129	A+PTR	static-64-223-129-129.man.east.myfairpoint.net
64.223.129.137	A+PTR	static-64-223-129-137.man.east.myfairpoint.net
64.223.129.151	PTR	cocytus.blisses.org
64.223.129.151	A	blisses.org
64.223.129.153	A+PTR	static-64-223-129-153.man.east.myfairpoint.net
64.223.129.158	A+PTR	static-64-223-129-158.man.east.myfairpoint.net
64.223.129.162	A+PTR	static-64-223-129-162.man.east.myfairpoint.net
64.223.129.168	A+PTR	static-64-223-129-168.man.east.myfairpoint.net
64.223.129.190	A+PTR	static-64-223-129-190.man.east.myfairpoint.net
64.223.129.200	A+PTR	static-64-223-129-200.man.east.myfairpoint.net
64.223.129.206	A+PTR	static-64-223-129-206.man.east.myfairpoint.net
64.223.129.219	A+PTR	static-64-223-129-219.man.east.myfairpoint.net
64.223.129.236	PTR	static-64-223-129-236.man.east.myfairpoint.net
64.223.129.241	A	remote.lakevets.com
64.223.129.248	A+PTR	static-64-223-129-248.man.east.myfairpoint.net
64.223.129.250	A+PTR	static-64-223-129-250.man.east.myfairpoint.net