Robtex

Up: 64.9.232.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 64.9.232.0/23
Down right: 64.9.234.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.9.232.1	A+PTR	user-64-9-232-1.googlewifi.com
64.9.232.152	A	user-64-9-232-152.googlewifi.com
64.9.232.184	A+PTR	user-64-9-232-184.googlewifi.com
64.9.233.4	A+PTR	user-64-9-233-4.googlewifi.com
64.9.233.13	A+PTR	user-64-9-233-13.googlewifi.com
64.9.233.20	A	user-64-9-233-20.googlewifi.com
64.9.233.39	A+PTR	user-64-9-233-39.googlewifi.com
64.9.233.74	A	user-64-9-233-74.googlewifi.com
64.9.233.80	A	user-64-9-233-80.googlewifi.com
64.9.233.89	A+PTR	user-64-9-233-89.googlewifi.com
64.9.233.102	A+PTR	user-64-9-233-102.googlewifi.com
64.9.233.134	A	user-64-9-233-134.googlewifi.com
64.9.233.135	A	user-64-9-233-135.googlewifi.com
64.9.233.190	A+PTR	user-64-9-233-190.googlewifi.com
64.9.233.216	A+PTR	user-64-9-233-216.googlewifi.com
64.9.233.216	A	www.rduweb.com
64.9.233.216	A	rduweb.com
64.9.234.73	A	user-64-9-234-73.googlewifi.com
64.9.234.185	A	user-64-9-234-185.googlewifi.com
64.9.234.227	A	user-64-9-234-227.googlewifi.com
64.9.234.238	A+PTR	user-64-9-234-238.googlewifi.com
64.9.235.29	A	user-64-9-235-29.googlewifi.com
64.9.235.30	A	user-64-9-235-30.googlewifi.com
64.9.235.54	A	user-64-9-235-54.googlewifi.com
64.9.235.57	A	user-64-9-235-57.googlewifi.com
64.9.235.154	A+PTR	user-64-9-235-154.googlewifi.com
64.9.235.180	A+PTR	user-64-9-235-180.googlewifi.com
64.9.235.199	A	user-64-9-235-199.googlewifi.com
64.9.235.217	A+PTR	user-64-9-235-217.googlewifi.com
64.9.235.245	A	user-64-9-235-245.googlewifi.com