Robtex

Up: 216.31.64.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.31.68.0/23
Down right: 216.31.70.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.31.68.7	PTR	216-031-68-7.abq.static.fttx.citylinkfiber.net
216.31.68.178	PTR	216-031-68-178.abq.static.fttx.citylinkfiber.net
216.31.69.1	PTR	216-031-69-1.abq.static.fttx.citylinkfiber.net
216.31.69.1	A	wrench.com
216.31.69.1	A	enesone.wrench.com
216.31.69.13	PTR	216-031-69-13.abq.static.fttx.citylinkfiber.net
216.31.69.13	A	altovista.net
216.31.69.19	A	mail.ucpl.org
216.31.69.19	A	mail.realtimesites.net
216.31.69.19	A	mail.touchcar.net
216.31.69.25	PTR	216-031-69-25.abq.static.fttx.citylinkfiber.net
216.31.69.25	A	jerry.sks.com
216.31.69.44	PTR	216-031-69-44.abq.static.fttx.citylinkfiber.net
216.31.69.44	A	addictedtotoys.net
216.31.69.47	PTR	216-031-69-47.abq.static.fttx.citylinkfiber.net
216.31.69.47	A	sprint83.sks.com
216.31.69.50	A	sprint86.sks.com
216.31.69.51	PTR	216-031-69-51.abq.static.fttx.citylinkfiber.net
216.31.69.51	A	sprint87.sks.com
216.31.69.52	A	sprint88.sks.com
216.31.69.57	A	host79.sks.com
216.31.69.59	A	host138.sks.com
216.31.69.115	A	rtsindigenous.com
216.31.69.115	A	rtsgov.com
216.31.69.115	A	rtsbusiness.com
216.31.69.125	PTR	216-031-69-125.abq.static.fttx.citylinkfiber.net
216.31.69.249	A	alphab.sks.com
216.31.69.250	A	lokidawg.sks.com
216.31.69.252	PTR	216-031-69-252.abq.static.fttx.citylinkfiber.net
216.31.69.252	A	alphad.sks.com
216.31.69.253	PTR	216-031-69-253.abq.static.fttx.citylinkfiber.net
216.31.69.253	A	veepen.sks.com
216.31.71.100	PTR	216-031-71-100.abq.static.fttx.citylinkfiber.net
216.31.71.145	PTR	216-031-71-145.abq.static.fttx.citylinkfiber.net
216.31.71.201	PTR	216-031-71-201.abq.static.fttx.citylinkfiber.net
216.31.71.216	PTR	216-031-71-216.abq.static.fttx.citylinkfiber.net
216.31.71.253	PTR	216-031-71-253.abq.static.fttx.citylinkfiber.net