Robtex

Up: 203.128.2.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.128.3.0/25
Down right: 203.128.3.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.128.3.5	A+PTR	smtp1.brain.net.pk
203.128.3.5	A	smtp.brain.net.pk
203.128.3.6	A+PTR	smtp2.brain.net.pk
203.128.3.6	A	smtp.brain.net.pk
203.128.3.11	PTR	mx1.brain.net.pk
203.128.3.11	A	www.wapda.com.pk
203.128.3.11	A	wapda.com.pk
203.128.3.12	A+PTR	mx2.brain.net.pk
203.128.3.13	A+PTR	mx3.brain.net.pk
203.128.3.18	A+PTR	spine.brain.net.pk
203.128.3.77	A	mul2-pool-77.brain.net.pk
203.128.3.111	A	mx1-efa.brain.net.pk
203.128.3.112	A	mx2-efa.brain.net.pk
203.128.3.115	PTR	skt-pool2-115.brain.net.pk
203.128.3.226	A	isb3-226.brain.net.pk
203.128.3.231	A	isb3-231.brain.net.pk
203.128.3.250	A	isb3-250.brain.net.pk