Robtex

Up: 64.172.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 64.172.96.0/20
Down right: 64.172.112.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.172.96.2	PTR	adsl-64-172-96-2.dsl.snfc21.pacbell.net
64.172.96.32	PTR	adsl-64-172-96-32.dsl.snfc21.pacbell.net
64.172.96.34	PTR	adsl-64-172-96-34.dsl.snfc21.pacbell.net
64.172.96.61	A	adsl-64-172-96-61.dsl.snfc21.pacbell.net
64.172.96.64	PTR	adsl-64-172-96-64.dsl.snfc21.pacbell.net
64.172.96.65	PTR	adsl-64-172-96-65.dsl.snfc21.pacbell.net
64.172.96.67	PTR	adsl-64-172-96-67.dsl.snfc21.pacbell.net
64.172.96.102	A	adsl-64-172-96-102.dsl.snfc21.pacbell.net
64.172.96.192	PTR	adsl-64-172-96-192.dsl.snfc21.pacbell.net
64.172.102.1	A	mail.thebanyansalon.com
64.172.102.1	A	mail.banyanspa.net
64.172.102.1	A	mail.banyan-spa.com
64.172.103.0	A	ci.hayward.ca.us
64.172.103.13	PTR	smtp.hayward-ca.gov
64.172.103.13	A	smtp-host.ci.hayward.ca.us
64.172.103.13	A	smtp-host.hayward-ca.gov
64.172.103.24	A	ci.hayward.ca.us
64.172.103.32	A+PTR	webcast2.hayward-ca.gov
64.172.103.35	A	googlesearch.hayward-ca.gov
64.172.103.38	A+PTR	mobility.hayward-ca.gov
64.172.103.38	A+PTR	mobility.ci.hayward.ca.us
64.172.103.88	A	autodiscover.hayward-ca.gov
64.172.103.88	A	email.hayward-ca.gov
64.172.103.180	A	iptb.hayward-ca.gov
64.172.103.204	PTR	ws.gohayward.us
64.172.103.204	A	haywardnow.us
64.172.104.33	PTR	adsl-64-172-104-33.dsl.snfc21.pacbell.net
64.172.104.79	A	adsl-64-172-104-79.dsl.snfc21.pacbell.net
64.172.104.96	PTR	adsl-64-172-104-96.dsl.snfc21.pacbell.net
64.172.106.35	PTR	adsl-64-172-106-35.dsl.snfc21.pacbell.net
64.172.106.130	PTR	adsl-64-172-106-130.dsl.snfc21.pacbell.net
64.172.107.34	PTR	adsl-64-172-107-34.dsl.snfc21.pacbell.net
64.172.107.66	PTR	adsl-64-172-107-66.dsl.snfc21.pacbell.net
64.172.115.11	A	64-172-115-11.ded.pacbell.net
64.172.115.35	A	64-172-115-35.ded.pacbell.net
64.172.115.82	A	argoinsurancegroup.com
64.172.116.20	A	adsl-64-172-116-20.dsl.snfc21.pacbell.net
64.172.116.27	A	adsl-64-172-116-27.dsl.snfc21.pacbell.net
64.172.116.112	A	adsl-64-172-116-112.dsl.snfc21.pacbell.net
64.172.116.226	A+PTR	adsl-64-172-116-226.dsl.snfc21.pacbell.net
64.172.116.231	A	adsl-64-172-116-231.dsl.snfc21.pacbell.net
64.172.119.6	A	adsl-64-172-119-6.dsl.snfc21.pacbell.net
64.172.119.7	A	adsl-64-172-119-7.dsl.snfc21.pacbell.net
64.172.119.12	A	adsl-64-172-119-12.dsl.snfc21.pacbell.net
64.172.119.15	A	adsl-64-172-119-15.dsl.snfc21.pacbell.net
64.172.119.32	A+PTR	adsl-64-172-119-32.dsl.snfc21.pacbell.net
64.172.119.38	A	adsl-64-172-119-38.dsl.snfc21.pacbell.net
64.172.119.42	A	adsl-64-172-119-42.dsl.snfc21.pacbell.net
64.172.119.43	A	adsl-64-172-119-43.dsl.snfc21.pacbell.net
64.172.119.71	A	adsl-64-172-119-71.dsl.snfc21.pacbell.net
64.172.119.83	A	adsl-64-172-119-83.dsl.snfc21.pacbell.net
64.172.119.85	A	adsl-64-172-119-85.dsl.snfc21.pacbell.net
64.172.119.87	A	adsl-64-172-119-87.dsl.snfc21.pacbell.net
64.172.119.103	A	adsl-64-172-119-103.dsl.snfc21.pacbell.net
64.172.119.123	A	adsl-64-172-119-123.dsl.snfc21.pacbell.net
64.172.119.126	A	adsl-64-172-119-126.dsl.snfc21.pacbell.net
64.172.119.132	A	adsl-64-172-119-132.dsl.snfc21.pacbell.net
64.172.119.136	A	adsl-64-172-119-136.dsl.snfc21.pacbell.net
64.172.119.141	A	adsl-64-172-119-141.dsl.snfc21.pacbell.net
64.172.119.145	A	adsl-64-172-119-145.dsl.snfc21.pacbell.net
64.172.119.171	A	adsl-64-172-119-171.dsl.snfc21.pacbell.net
64.172.119.176	A	adsl-64-172-119-176.dsl.snfc21.pacbell.net
64.172.119.177	A	adsl-64-172-119-177.dsl.snfc21.pacbell.net
64.172.119.179	A	adsl-64-172-119-179.dsl.snfc21.pacbell.net
64.172.119.204	A	adsl-64-172-119-204.dsl.snfc21.pacbell.net
64.172.119.220	A	adsl-64-172-119-220.dsl.snfc21.pacbell.net
64.172.119.223	A	adsl-64-172-119-223.dsl.snfc21.pacbell.net
64.172.119.224	A+PTR	adsl-64-172-119-224.dsl.snfc21.pacbell.net
64.172.119.225	A+PTR	adsl-64-172-119-225.dsl.snfc21.pacbell.net
64.172.119.238	A	adsl-64-172-119-238.dsl.snfc21.pacbell.net
64.172.119.245	A	adsl-64-172-119-245.dsl.snfc21.pacbell.net
64.172.120.203	A+PTR	mail.swsfcu.net
64.172.120.203	A	swsfcu.net
64.172.120.205	A	ww2.swsfcu.net
64.172.123.26	A	adsl-64-172-123-26.dsl.snfc21.pacbell.net
64.172.123.72	A	adsl-64-172-123-72.dsl.snfc21.pacbell.net
64.172.123.73	A	adsl-64-172-123-73.dsl.snfc21.pacbell.net
64.172.123.74	A	adsl-64-172-123-74.dsl.snfc21.pacbell.net
64.172.123.92	A	adsl-64-172-123-92.dsl.snfc21.pacbell.net
64.172.123.123	A	adsl-64-172-123-123.dsl.snfc21.pacbell.net
64.172.123.149	A	adsl-64-172-123-149.dsl.snfc21.pacbell.net
64.172.123.150	A	adsl-64-172-123-150.dsl.snfc21.pacbell.net
64.172.123.168	A	adsl-64-172-123-168.dsl.snfc21.pacbell.net
64.172.123.193	A	adsl-64-172-123-193.dsl.snfc21.pacbell.net
64.172.123.203	A	adsl-64-172-123-203.dsl.snfc21.pacbell.net
64.172.123.235	A	adsl-64-172-123-235.dsl.snfc21.pacbell.net
64.172.125.9	A	mail.metalfx.com
64.172.125.11	A	mail2.metalfx.com