Robtex

Up: 207.31.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 207.31.0.0/18
Down right: 207.31.64.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
207.31.1.1	PTR	207-031-001-001.cupertino.k12.ca.us
207.31.10.3	PTR	a207-31-10-003.unionsd.k12.ca.us
207.31.11.1	PTR	a207-31-11-001.unionsd.k12.ca.us
207.31.16.129	PTR	a207-31-16-129.unionsd.k12.ca.us
207.31.16.130	PTR	a207-31-16-130.unionsd.k12.ca.us
207.31.17.4	PTR	a207-31-17-004.unionsd.k12.ca.us
207.31.17.129	PTR	a207-31-17-129.unionsd.k12.ca.us
207.31.17.130	PTR	a207-31-17-130.unionsd.k12.ca.us
207.31.18.129	PTR	a207-31-18-129.unionsd.k12.ca.us
207.31.21.22	A	campbellusd.k12.ca.us
207.31.21.22	A	samp1.campbellusd.org
207.31.21.221	A	email.campbellusd.org
207.31.21.227	A	my.campbellusd.org
207.31.21.227	A	web.campbellusd.org
207.31.21.227	A	foresthill.campbellusd.org
207.31.22.2	PTR	a207-31-22-002.campbellusd.k12.ca.us
207.31.23.128	PTR	a207-31-23-128.campbellusd.k12.ca.us
207.31.23.129	PTR	a207-31-23-129.campbellusd.k12.ca.us
207.31.24.4	PTR	a207-31-24-004.sccoe.k12.ca.us
207.31.24.129	PTR	a207-31-24-129.sccoe.k12.ca.us
207.31.24.131	PTR	a207-31-24-131.sccoe.k12.ca.us
207.31.24.193	A	a207-31-24-193.lbsd.k12.ca.us
207.31.24.196	A	a207-31-24-196.lbsd.k12.ca.us
207.31.24.199	A	a207-31-24-199.lbsd.k12.ca.us
207.31.24.204	A	lbsd.k12.ca.us
207.31.25.1	A+PTR	a207-31-25-001.mvwsd.k12.ca.us
207.31.25.3	A+PTR	a207-31-25-003.mvwsd.k12.ca.us
207.31.25.4	A+PTR	a207-31-25-004.mvwsd.k12.ca.us
207.31.25.5	A	a207-31-25-005.mvwsd.k12.ca.us
207.31.25.134	A	a207-31-25-134.mvwsd.k12.ca.us
207.31.25.145	A	a207-31-25-145.mvwsd.k12.ca.us
207.31.25.154	A	a207-31-25-154.mvwsd.k12.ca.us
207.31.25.155	A	a207-31-25-155.mvwsd.k12.ca.us
207.31.30.1	A	pop.metroed.com
207.31.30.1	A	pop.metroed.org
207.31.30.4	PTR	a207-31-30-004.metroed.net
207.31.30.131	PTR	a207-31-30-131.metroed.net
207.31.31.131	PTR	a207-31-31-131.saratoga.org
207.31.33.24	A	a207-31-33-024.sesd.org
207.31.33.27	A	a207-31-33-027.sesd.org
207.31.33.35	A	a207-31-33-035.sesd.org
207.31.33.123	A	a207-31-33-123.sesd.org
207.31.34.128	PTR	a207-31-34-128.gusd.k12.ca.us
207.31.35.131	PTR	a207-31-35-131.mpsd.k12.ca.us
207.31.37.25	A	webmail.vcs.net
207.31.37.25	A	vchs.valleychristian.net
207.31.37.25	A	webmail.valleychristian.net
207.31.37.35	A	mail.vcs.net
207.31.37.138	A	warriorlife.org
207.31.37.138	A	olympia.valleychristian.net
207.31.40.128	PTR	a207-31-40-128.gusd.k12.ca.us
207.31.40.129	PTR	a207-31-40-129.gusd.k12.ca.us
207.31.41.1	A+PTR	www2.loma.k12.ca.us
207.31.41.1	A	loma.k12.ca.us
207.31.41.1	A	mail.loma.k12.ca.us
207.31.41.6	A	mail1.loma.k12.ca.us
207.31.41.129	A+PTR	a207-31-41-129.loma.k12.ca.us
207.31.41.141	A	a207-31-41-141.loma.k12.ca.us
207.31.41.146	A	a207-31-41-146.loma.k12.ca.us
207.31.41.148	A	a207-31-41-148.loma.k12.ca.us
207.31.42.1	A	mailhost.ogsd.k12.ca.us
207.31.42.2	PTR	www.ogsd.k12.ca.us
207.31.42.2	A	ogsd.net
207.31.42.2	A	www.ogsd.net
207.31.44.5	A	a207-31-44-005.mvwsd.k12.ca.us
207.31.44.6	A	a207-31-44-006.mvwsd.k12.ca.us
207.31.44.9	A	a207-31-44-009.mvwsd.k12.ca.us
207.31.44.13	A	a207-31-44-013.mvwsd.k12.ca.us
207.31.44.128	A+PTR	a207-31-44-128.mvwsd.k12.ca.us
207.31.44.132	A	a207-31-44-132.mvwsd.k12.ca.us
207.31.44.139	A	a207-31-44-139.mvwsd.k12.ca.us
207.31.44.143	A	a207-31-44-143.mvwsd.k12.ca.us
207.31.45.3	A	a207-31-45-003.sesd.org
207.31.46.10	A	razor.sesd.org
207.31.46.69	A	ssdmail.sesd.org
207.31.47.3	PTR	a207-31-47-003.musd.k12.ca.us
207.31.48.128	PTR	a207-31-48-128.alumrock.k12.ca.us
207.31.49.130	PTR	a207-31-49-130.alumrock.k12.ca.us
207.31.50.3	PTR	a207-31-50-003.alumrock.k12.ca.us
207.31.50.4	PTR	a207-31-50-004.alumrock.k12.ca.us
207.31.50.131	PTR	a207-31-50-131.alumrock.k12.ca.us
207.31.54.91	A	a207-31-54-091.sesd.org
207.31.55.100	A	powerschool.sesd.org
207.31.55.100	A	a207-31-55-100.sesd.org
207.31.56.19	A	a207-31-56-019.mvwsd.k12.ca.us
207.31.56.22	A	a207-31-56-022.mvwsd.k12.ca.us
207.31.56.23	A	a207-31-56-023.mvwsd.k12.ca.us
207.31.56.153	A	a207-31-56-153.mvwsd.k12.ca.us
207.31.56.215	A	a207-31-56-215.mvwsd.k12.ca.us
207.31.57.142	A	a207-31-57-142.mvwsd.k12.ca.us
207.31.57.212	A	a207-31-57-212.mvwsd.k12.ca.us
207.31.57.254	A	a207-31-57-254.mvwsd.k12.ca.us
207.31.60.8	A	ns03.mvwsd.k12.ca.us
207.31.60.10	A	www.mvwsd.org
207.31.60.10	A	www.mvwsd.k12.ca.us
207.31.60.10	A	mvwsd.k12.ca.us
207.31.60.142	A	graham.mvwsd.org
207.31.60.143	A	landels.mvwsd.org
207.31.60.201	A	montaloma.mvwsd.org
207.31.60.218	A	a207-31-60-218.mvwsd.k12.ca.us
207.31.78.110	A	blackcatblades.com
207.31.79.3	PTR	cask.nacintl.com
207.31.116.10	PTR	oscar.ildtelecom.com
207.31.123.5	A	localrespond.com
207.31.123.5	A	www.localrespond.com