Robtex

Up: 68.238.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 68.238.128.0/21
Down right: 68.238.136.0/21

IP	Type	Hostname
68.238.128.12	A+PTR	nsseat01.verizon.net
68.238.128.14	A+PTR	nsseat02.verizon.net
68.238.131.241	PTR	pool-68-238-131-241.sea.dsl-w.verizon.net
68.238.131.251	A	pool-68-238-131-251.sea.dsl-w.verizon.net
68.238.134.108	A	pool-68-238-134-108.sea.dsl-w.verizon.net
68.238.135.2	PTR	pool-68-238-135-2.sea.dsl-w.verizon.net
68.238.135.5	A+PTR	pool-68-238-135-5.sea.dsl-w.verizon.net
68.238.135.36	A	pool-68-238-135-36.sea.dsl-w.verizon.net
68.238.135.51	PTR	pool-68-238-135-51.sea.dsl-w.verizon.net
68.238.135.117	A	pool-68-238-135-117.sea.dsl-w.verizon.net
68.238.135.118	A	pool-68-238-135-118.sea.dsl-w.verizon.net
68.238.135.172	A	pool-68-238-135-172.sea.dsl-w.verizon.net
68.238.135.175	A	pool-68-238-135-175.sea.dsl-w.verizon.net
68.238.135.200	A	pool-68-238-135-200.sea.dsl-w.verizon.net
68.238.135.208	A+PTR	pool-68-238-135-208.sea.dsl-w.verizon.net
68.238.137.21	A	pool-68-238-137-21.sea.dsl-w.verizon.net
68.238.137.35	PTR	pool-68-238-137-35.sea.dsl-w.verizon.net
68.238.137.188	A	pool-68-238-137-188.sea.dsl-w.verizon.net
68.238.137.222	A	pool-68-238-137-222.sea.dsl-w.verizon.net
68.238.137.228	A	pool-68-238-137-228.sea.dsl-w.verizon.net
68.238.137.231	A	pool-68-238-137-231.sea.dsl-w.verizon.net
68.238.140.49	A	pool-68-238-140-49.sea.dsl-w.verizon.net
68.238.141.193	A+PTR	pool-68-238-141-193.sea.dsl-w.verizon.net
68.238.142.133	A+PTR	pool-68-238-142-133.sea.dsl-w.verizon.net