Robtex

Up: 208.68.152.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 208.68.152.0/23
Down right: 208.68.154.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.68.152.1	A+PTR	dns1.esc2.net
208.68.152.2	A+PTR	dns2.esc2.net
208.68.152.4	PTR	mail.esc2.net
208.68.152.4	A	adisd.esc2.net
208.68.152.4	A	lagloriaisd.esc2.net
208.68.152.7	PTR	mail-server.esc2.net
208.68.152.7	PTR	webmail.esc2.net
208.68.152.12	PTR	coastalbendtechprep.org
208.68.152.12	PTR	pel.esc2.net
208.68.152.12	A+PTR	web1.esc2.net
208.68.152.22	A	web3.esc2.net
208.68.152.23	A+PTR	web5v.esc2.net
208.68.152.23	A+PTR	23.152.static.esc2.net
208.68.152.61	A+PTR	dp-rsccc.esc2.net
208.68.152.61	A+PTR	gradebook.mcisd.esc2.net
208.68.152.61	A+PTR	61.152.static.esc2.net
208.68.152.67	A+PTR	esc2ube.net
208.68.152.67	PTR	www.esc2ube.net
208.68.152.67	PTR	67.152.static.esc2.net
208.68.153.17	PTR	nuecesco.com
208.68.153.17	PTR	co.nueces.tx.us
208.68.153.17	A+PTR	17.153.static.esc2.net
208.68.153.23	A+PTR	ex-mail.co.nueces.tx.us
208.68.153.23	A	ex-mail1.co.nueces.tx.us
208.68.153.23	A	ex-mail.nuecesco.com
208.68.153.49	A	nat.benavidesisd.net
208.68.153.51	A	hslibrary.benavidesisd.net
208.68.153.53	A+PTR	mail.benavidesisd.net
208.68.153.53	A+PTR	53.153.static.esc2.net
208.68.153.113	A+PTR	nat.bcisd.esc2.net
208.68.153.113	A+PTR	113.153.static.esc2.net
208.68.153.194	PTR	barracuda.tmisd.esc2.us
208.68.153.194	A	barracuda.tmisd.esc2.net
208.68.153.196	A+PTR	tmisd.esc2.net
208.68.153.196	PTR	mail.tmisd.esc2.net
208.68.153.196	PTR	196.153.static.esc2.net
208.68.153.204	A+PTR	mail.tmisd.us
208.68.153.210	PTR	bishopcisd.net
208.68.153.210	PTR	mail.bishopcisd.net
208.68.153.242	A+PTR	www.kvisd.esc2.net
208.68.153.245	A+PTR	mail.kingsvilleisd.com
208.68.154.17	A+PTR	nat.westosoisd.esc2.net
208.68.154.17	PTR	17.154.static.esc2.net
208.68.154.26	A+PTR	26.154.static.esc2.net
208.68.154.26	A	mail.westosoisd.net
208.68.154.27	PTR	barracuda.westosoisd.net
208.68.154.27	A+PTR	27.154.static.esc2.net
208.68.154.49	A+PTR	nat.bbisd.esc2.net
208.68.154.49	A+PTR	49.154.static.esc2.net
208.68.154.114	A	trisd.org
208.68.154.120	A	mail.trisd.org
208.68.154.124	A	barracuda.trisd.org
208.68.154.216	A+PTR	216.154.static.esc2.net
208.68.154.225	A+PTR	nat.ogisd.esc2.net
208.68.154.225	PTR	225.154.static.esc2.net
208.68.154.231	A	mail.ogisd.net
208.68.155.17	PTR	nat.seashore.esc2.net
208.68.155.17	PTR	17.155.static.esc2.net
208.68.155.71	A+PTR	dorado.paisd.net
208.68.155.71	A+PTR	71.155.static.esc2.net
208.68.155.71	A	paisd.net
208.68.155.125	A+PTR	125.155.static.esc2.net
208.68.155.125	A	mail.taftisd.net
208.68.155.126	A+PTR	126.155.static.esc2.net
208.68.155.126	A	exchange.taftisd.net
208.68.155.167	A	jury2.co.nueces.tx.us
208.68.155.168	PTR	168.155.static.esc2.net
208.68.155.168	A	odypa.co.nueces.tx.us
208.68.155.214	A+PTR	214.155.static.esc2.net
208.68.155.214	A	bcex.brookscountyisd.net
208.68.155.214	A	mail.bcisdistrict.net