Robtex

Up: 209.39.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 209.39.0.0/18
Down right: 209.39.64.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
209.39.10.11	A	mail.mansiononturtlecreek.com
209.39.10.11	A	mail.crescentcourt.com
209.39.10.11	A	mail.littledixbay.com
209.39.13.168	A	horsinaroundtexas.com
209.39.20.1	PTR	host1.firstco.com
209.39.20.21	A	ns1.firstco.com
209.39.20.22	A	ns2.firstco.com
209.39.20.80	A	barracuda.firstco.com
209.39.20.129	PTR	host129.firstco.com
209.39.20.130	PTR	host130.firstco.com
209.39.20.150	A	ns1.firstco.com
209.39.20.150	A	dns.firstco.com
209.39.20.150	A	www.firstco.com
209.39.20.175	A	ns2.firstco.com
209.39.20.175	A	firstco.com
209.39.26.1	A+PTR	gateway.esdallas.org
209.39.26.2	A+PTR	firewall.esdallas.org
209.39.26.3	A+PTR	eagleeye.esdallas.org
209.39.26.3	A+PTR	ns.esdallas.org
209.39.26.3	PTR	wellnesscentercam.esdallas.org
209.39.67.73	A	telns.com
209.39.68.244	A	garrettmetaldetectors.com