Robtex

Up: 198.101.120.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 198.101.121.0/25
Down right: 198.101.121.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.101.121.79	A+PTR	198-101-121-79.static-ip.telepacific.net
198.101.121.105	PTR	198-101-121-105.static-ip.telepacific.net
198.101.121.105	A	mail.ctgla.org
198.101.121.105	A	mail-02.centertheatregroup.org
198.101.121.106	PTR	198-101-121-106.static-ip.telepacific.net
198.101.121.106	A	mail-03.centertheatregroup.org
198.101.121.137	A	mail.dvorsky.com
198.101.121.144	A	198-101-121-144.static-ip.telepacific.net
198.101.121.171	A	mail.nsbn.com
198.101.121.226	PTR	spamgate.dynamic-plumbing.com
198.101.121.236	A+PTR	spamgate.dynamic-plumbing.com
198.101.121.236	A	spamgate.dynamic-hvac.com
198.101.121.236	A	spamgate.turnkeytubs.com