Robtex

Up: 72.129.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 72.129.0.0/18
Down right: 72.129.64.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.129.0.10	A+PTR	sndgcaxk02h.netops.charter.com
72.129.1.1	A+PTR	agg1.sndhcaax01r.socal.rr.com
72.129.1.80	A+PTR	tge8-1.sndgcaxt01h.socal.rr.com
72.129.2.187	A+PTR	agg10.sndhcahs02h.socal.rr.com
72.129.2.187	A	aaronlevitan.com
72.129.5.16	A+PTR	tge0-8-0-2.ontrcacp01r.socal.rr.com
72.129.5.16	A	tge0-8-0-2.ontrcacp-ccr01.socal.rr.com
72.129.5.30	A	tge8-2.ontrcacp01h.socal.rr.com
72.129.5.30	A	tge8-2.ontrcacp-cer01.socal.rr.com
72.129.8.255	A+PTR	lamrcadq-ccr01.socal.rr.com
72.129.8.255	A+PTR	lamrcadq01r.socal.rr.com
72.129.9.0	A+PTR	agg28.lsancarc01r.socal.rr.com
72.129.9.1	PTR	agg1.lamrcadq-ccr01.socal.rr.com
72.129.10.6	A	tge0-9-0-11.lamrcadq01r.socal.rr.com
72.129.10.193	A	agg1.lsdwcaro01h.socal.rr.com
72.129.12.147	A	snplca3202h.socal.rr.com
72.129.12.147	A	lo0.snplca3202h.socal.rr.com
72.129.12.189	A+PTR	vnnzca2401h.socal.rr.com
72.129.17.176	A+PTR	tge0-0-0-29.cmtncacx02h.socal.rr.com
72.129.19.8	A+PTR	agg20.lsaicaev01r.socal.rr.com
72.129.20.249	A	anhmcapj01h.socal.rr.com
72.129.20.249	A	lo0.anhmcapj01h.socal.rr.com
72.129.21.0	A+PTR	agg27.lsancarc01r.socal.rr.com
72.129.22.0	A+PTR	tge0-0-0-33.csmscagl01h.socal.rr.com
72.129.22.11	A	tge9-2.csmscagl04h.socal.rr.com
72.129.22.12	A	tge0-0-0-27.csmscagl01h.socal.rr.com
72.129.22.14	A	tge0-0-0-26.csmscagl01h.socal.rr.com
72.129.23.220	A	ns11.ns2.aspx7.su
72.129.23.220	A	ns12.ns1.bcus2.ru
72.129.23.220	A	ns10.ns1.locm.ru
72.129.24.223	PTR	vnnzca15-cer01.socal.rr.com
72.129.27.2	PTR	tge0-0-0-32.lsadcafk01h.socal.rr.com
72.129.27.67	A+PTR	agg1.pldlcabl02h.socal.rr.com
72.129.28.85	A	cpe-72-129-28-85.socal.res.rr.com
72.129.29.92	A+PTR	agg21.grgvcabt02r.socal.rr.com
72.129.33.2	A+PTR	agg25.tustcaft01r.socal.rr.com
72.129.33.190	A+PTR	agg21.grdncadd02r.socal.rr.com
72.129.34.2	PTR	cpe-72-129-34-2.socal.res.rr.com
72.129.37.0	A	agg20.lsancarc01r.socal.rr.com
72.129.38.124	A	amerimexbcs.com
72.129.38.223	A	cpe-72-129-38-223.socal.res.rr.com
72.129.45.0	A+PTR	agg31.lsancarc01r.socal.rr.com
72.129.45.0	A	agg31.lsancarc-ccr01.socal.rr.com
72.129.45.128	A	tge0-4-0-2.milnhixd-ccr01.hawaii.rr.com
72.129.57.5	A	mail.bsolutiontech.com
72.129.64.0	PTR	cpe-72-129-64-0.socal.res.rr.com
72.129.66.4	PTR	cpe-72-129-66-4.socal.res.rr.com
72.129.66.222	A	paynepower.com
72.129.67.249	PTR	cpe-72-129-67-249.socal.res.rr.com
72.129.70.96	PTR	cpe-72-129-70-96.socal.res.rr.com
72.129.71.187	PTR	cpe-72-129-71-187.socal.res.rr.com
72.129.73.198	A	dislikeanything.com
72.129.74.98	PTR	cpe-72-129-74-98.socal.res.rr.com
72.129.74.148	A	www.glapo.com
72.129.74.148	A	glapo.com
72.129.75.19	PTR	cpe-72-129-75-19.socal.res.rr.com
72.129.76.142	PTR	cpe-72-129-76-142.socal.res.rr.com
72.129.77.120	PTR	cpe-72-129-77-120.socal.res.rr.com
72.129.78.172	PTR	cpe-72-129-78-172.socal.res.rr.com
72.129.80.89	PTR	cpe-72-129-80-89.socal.res.rr.com
72.129.89.243	PTR	cpe-72-129-89-243.socal.res.rr.com
72.129.89.243	A	folilio.com
72.129.92.18	PTR	cpe-72-129-92-18.socal.res.rr.com
72.129.92.224	PTR	cpe-72-129-92-224.socal.res.rr.com
72.129.93.238	PTR	cpe-72-129-93-238.socal.res.rr.com
72.129.94.34	PTR	cpe-72-129-94-34.socal.res.rr.com
72.129.94.235	PTR	cpe-72-129-94-235.socal.res.rr.com
72.129.95.48	PTR	cpe-72-129-95-48.socal.res.rr.com
72.129.95.128	PTR	cpe-72-129-95-128.socal.res.rr.com
72.129.96.154	A	instantpcsolutions.com
72.129.96.252	A+PTR	cpe-72-129-96-252.socal.res.rr.com
72.129.98.247	PTR	cpe-72-129-98-247.socal.res.rr.com
72.129.99.85	PTR	cpe-72-129-99-85.socal.res.rr.com
72.129.103.17	PTR	cpe-72-129-103-17.socal.res.rr.com
72.129.104.221	PTR	cpe-72-129-104-221.socal.res.rr.com
72.129.106.179	PTR	cpe-72-129-106-179.socal.res.rr.com
72.129.108.111	PTR	cpe-72-129-108-111.socal.res.rr.com
72.129.109.67	A	cpe-72-129-109-67.socal.res.rr.com
72.129.109.129	PTR	cpe-72-129-109-129.socal.res.rr.com
72.129.109.161	A	cpe-72-129-109-161.socal.res.rr.com
72.129.109.163	A	cpe-72-129-109-163.socal.res.rr.com
72.129.109.183	A	cpe-72-129-109-183.socal.res.rr.com
72.129.110.145	PTR	cpe-72-129-110-145.socal.res.rr.com
72.129.111.14	PTR	cpe-72-129-111-14.socal.res.rr.com
72.129.113.120	A	smtp.dickspencer.com
72.129.113.120	A	cpe-72-129-113-120.socal.res.rr.com
72.129.113.120	A	pop3.dickspencer.com
72.129.121.120	PTR	cpe-72-129-121-120.socal.res.rr.com
72.129.123.125	PTR	cpe-72-129-123-125.socal.res.rr.com
72.129.123.175	A	whclune.com
72.129.123.195	A	cpe-72-129-123-195.socal.res.rr.com
72.129.124.5	PTR	cpe-72-129-124-5.socal.res.rr.com
72.129.124.166	PTR	cpe-72-129-124-166.socal.res.rr.com
72.129.125.229	PTR	cpe-72-129-125-229.socal.res.rr.com
72.129.126.3	PTR	cpe-72-129-126-3.socal.res.rr.com
72.129.127.65	PTR	cpe-72-129-127-65.socal.res.rr.com