Robtex

Up: 68.238.160.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 68.238.160.0/23
Down right: 68.238.162.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
68.238.160.5	A+PTR	static-68-238-160-5.washdc.fios.verizon.net
68.238.160.19	PTR	pool-68-238-160-19.washdc.fios.verizon.net
68.238.160.78	PTR	pool-68-238-160-78.washdc.fios.verizon.net
68.238.160.98	A+PTR	static-68-238-160-98.washdc.fios.verizon.net
68.238.160.101	A+PTR	static-68-238-160-101.washdc.fios.verizon.net
68.238.160.125	PTR	pool-68-238-160-125.washdc.fios.verizon.net
68.238.160.127	A+PTR	static-68-238-160-127.washdc.fios.verizon.net
68.238.160.140	PTR	pool-68-238-160-140.washdc.fios.verizon.net
68.238.160.232	A+PTR	static-68-238-160-232.washdc.fios.verizon.net
68.238.160.241	A+PTR	static-68-238-160-241.washdc.fios.verizon.net
68.238.160.249	A+PTR	static-68-238-160-249.washdc.fios.verizon.net
68.238.161.2	A+PTR	pool-68-238-161-2.washdc.fios.verizon.net
68.238.161.13	PTR	pool-68-238-161-13.washdc.fios.verizon.net
68.238.161.23	PTR	pool-68-238-161-23.washdc.fios.verizon.net
68.238.161.30	PTR	pool-68-238-161-30.washdc.fios.verizon.net
68.238.161.55	A+PTR	pool-68-238-161-55.washdc.fios.verizon.net
68.238.161.55	A	examocean.com
68.238.161.62	A	no1home.net
68.238.161.68	A+PTR	pool-68-238-161-68.washdc.fios.verizon.net
68.238.161.84	PTR	pool-68-238-161-84.washdc.fios.verizon.net
68.238.161.156	PTR	pool-68-238-161-156.washdc.fios.verizon.net
68.238.161.161	PTR	pool-68-238-161-161.washdc.fios.verizon.net
68.238.161.218	PTR	pool-68-238-161-218.washdc.fios.verizon.net
68.238.161.226	A	*.darksix.net
68.238.161.226	A	hostmaster.darksix.net
68.238.161.226	A	darksix.net
68.238.161.238	PTR	pool-68-238-161-238.washdc.fios.verizon.net
68.238.162.8	A+PTR	pool-68-238-162-8.washdc.fios.verizon.net
68.238.162.24	A	806ivy.com
68.238.162.28	PTR	pool-68-238-162-28.washdc.fios.verizon.net
68.238.162.56	A	mail.juliaburke.com
68.238.162.80	PTR	pool-68-238-162-80.washdc.fios.verizon.net
68.238.162.81	PTR	pool-68-238-162-81.washdc.fios.verizon.net
68.238.162.91	A	pool-68-238-162-91.washdc.fios.verizon.net
68.238.162.105	PTR	pool-68-238-162-105.washdc.fios.verizon.net
68.238.162.131	PTR	pool-68-238-162-131.washdc.fios.verizon.net
68.238.162.132	PTR	pool-68-238-162-132.washdc.fios.verizon.net
68.238.162.151	A+PTR	pool-68-238-162-151.washdc.fios.verizon.net
68.238.162.168	A+PTR	pool-68-238-162-168.washdc.fios.verizon.net
68.238.162.212	PTR	pool-68-238-162-212.washdc.fios.verizon.net
68.238.162.221	PTR	pool-68-238-162-221.washdc.fios.verizon.net
68.238.162.221	A	l10.us
68.238.162.229	A	eliteparakeet.com
68.238.163.27	PTR	static-68-238-163-27.washdc.fios.verizon.net
68.238.163.30	PTR	static-68-238-163-30.washdc.fios.verizon.net
68.238.163.46	A+PTR	mouse.eicat.ca
68.238.163.46	A	xphile.ca
68.238.163.54	PTR	static-68-238-163-54.washdc.fios.verizon.net
68.238.163.65	A	static-68-238-163-65.washdc.fios.verizon.net
68.238.163.66	PTR	static-68-238-163-66.washdc.fios.verizon.net
68.238.163.66	A	alphanetworksva.com
68.238.163.69	A	static-68-238-163-69.washdc.fios.verizon.net
68.238.163.86	A	static-68-238-163-86.washdc.fios.verizon.net
68.238.163.88	PTR	static-68-238-163-88.washdc.fios.verizon.net
68.238.163.88	A	nillc.com
68.238.163.88	A	mail.nillc.com
68.238.163.89	PTR	static-68-238-163-89.washdc.fios.verizon.net
68.238.163.89	A	nillc.org
68.238.163.89	A	nillcsbs.nillc.org
68.238.163.100	A+PTR	webmail.png-law.com
68.238.163.110	PTR	static-68-238-163-110.washdc.fios.verizon.net
68.238.163.115	PTR	static-68-238-163-115.washdc.fios.verizon.net
68.238.163.115	A	mail.camphollywood.com
68.238.163.115	A	smtp.mymarlo.com
68.238.163.116	PTR	static-68-238-163-116.washdc.fios.verizon.net
68.238.163.116	A	kiptology.com
68.238.163.116	A	camphollywood.com
68.238.163.126	PTR	mail.nikuman.com
68.238.163.130	PTR	fios.wdom.com
68.238.163.131	PTR	ibmpc01.wdom.com
68.238.163.162	PTR	static-68-238-163-162.washdc.fios.verizon.net
68.238.163.162	A	cardiologyspecialistsofvirginia.net
68.238.163.162	A	www.bpmlawyers.com
68.238.163.163	PTR	static-68-238-163-163.washdc.fios.verizon.net
68.238.163.164	PTR	mail.thesoulutionsgroup.net
68.238.163.164	A	techsupport.ntconnections.net
68.238.163.164	A	command-it.com
68.238.163.165	A+PTR	static-68-238-163-165.washdc.fios.verizon.net
68.238.163.165	A	kaloramalegal.com
68.238.163.166	PTR	static-68-238-163-166.washdc.fios.verizon.net
68.238.163.167	PTR	static-68-238-163-167.washdc.fios.verizon.net
68.238.163.170	PTR	mx.solutionsgroup.us
68.238.163.170	A	mx1.tsgdomain.com
68.238.163.170	A	mail.peress.net
68.238.163.172	A+PTR	static-68-238-163-172.washdc.fios.verizon.net
68.238.163.172	A	harveypitt.com
68.238.163.172	A	rosenthalretail.com
68.238.163.181	PTR	static-68-238-163-181.washdc.fios.verizon.net
68.238.163.181	A	also-ns.nil.ca
68.238.163.218	PTR	webmail.builtbytradition.com
68.238.163.219	A	adeptech.net
68.238.163.219	A	kindlebrilliance.com
68.238.163.219	A	ms.kindlebrilliance.com
68.238.163.220	A+PTR	adeptech.com
68.238.163.220	A	aag.adeptech.com
68.238.163.220	A	mail.vimsel.com
68.238.163.226	A+PTR	static-68-238-163-226.washdc.fios.verizon.net
68.238.163.228	PTR	static-68-238-163-228.washdc.fios.verizon.net
68.238.163.229	PTR	static-68-238-163-229.washdc.fios.verizon.net
68.238.163.234	A+PTR	static-68-238-163-234.washdc.fios.verizon.net
68.238.163.234	A	richerfamily.info
68.238.163.234	A	richernet.net
68.238.163.235	PTR	static-68-238-163-235.washdc.fios.verizon.net
68.238.163.236	PTR	static-68-238-163-236.washdc.fios.verizon.net
68.238.163.237	A+PTR	static-68-238-163-237.washdc.fios.verizon.net
68.238.163.237	A	smtp.troop647.org
68.238.163.237	A	mail.troop647.org
68.238.163.238	PTR	static-68-238-163-238.washdc.fios.verizon.net
68.238.163.251	A	owa.networkmgmt.com
68.238.163.251	A	mail.networkmgmt.com
68.238.163.251	A	mail.netmaninc.com