Robtex

Up: 100.4.0.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 100.4.64.0/19
Down right: 100.4.96.0/19

IP	Type	Hostname
100.4.65.1	PTR	lo0-100.nrflva-vfttp-305.verizon-gni.net
100.4.65.144	A	charthousebibleinstitute.com
100.4.66.29	A	pool-100-4-66-29.nrflva.fios.verizon.net
100.4.66.238	A	pool-100-4-66-238.nrflva.fios.verizon.net
100.4.68.126	A	planetastroboy.com
100.4.68.126	A	pool-100-4-68-126.nrflva.fios.verizon.net
100.4.69.11	PTR	pool-100-4-69-11.nrflva.fios.verizon.net
100.4.72.1	PTR	lo0-100.nrflva-vfttp-315.verizon-gni.net
100.4.73.23	A	pool-100-4-73-23.nrflva.fios.verizon.net
100.4.74.96	A	openmonte.ru
100.4.76.182	A	pool-100-4-76-182.nrflva.fios.verizon.net
100.4.77.226	A	skipbowman.com
100.4.78.30	A	digitallyconnected.us
100.4.79.55	A	pool-100-4-79-55.nrflva.fios.verizon.net
100.4.79.61	A	www.cisatlantic.com
100.4.80.37	A+PTR	pool-100-4-80-37.nrflva.fios.verizon.net
100.4.80.37	A	titan-repair.com
100.4.84.95	A+PTR	pool-100-4-84-95.nrflva.fios.verizon.net
100.4.84.141	PTR	pool-100-4-84-141.nrflva.fios.verizon.net
100.4.84.179	A+PTR	pool-100-4-84-179.nrflva.fios.verizon.net
100.4.84.233	A+PTR	pool-100-4-84-233.nrflva.fios.verizon.net
100.4.84.233	A	mccawley.us
100.4.84.233	A	mail.mccawley.us
100.4.90.35	PTR	pool-100-4-90-35.nrflva.fios.verizon.net
100.4.90.35	A	site01.wgbsa.com
100.4.92.33	A	mail.leapard.us
100.4.92.83	A+PTR	pool-100-4-92-83.nrflva.fios.verizon.net
100.4.92.88	A+PTR	pool-100-4-92-88.nrflva.fios.verizon.net
100.4.92.168	A+PTR	pool-100-4-92-168.nrflva.fios.verizon.net
100.4.92.168	A	mail.leapard.us
100.4.92.168	A	leapard.us
100.4.94.106	A+PTR	mail.rshr.com
100.4.94.106	A	pop.rshr.com
100.4.101.196	A+PTR	pool-100-4-101-196.nrflva.fios.verizon.net
100.4.101.220	PTR	pool-100-4-101-220.nrflva.fios.verizon.net
100.4.101.248	A+PTR	pool-100-4-101-248.nrflva.fios.verizon.net
100.4.105.118	A	mx.semaphore-design.com
100.4.107.208	A	pool-100-4-107-208.nrflva.fios.verizon.net
100.4.108.4	PTR	pool-100-4-108-4.nrflva.fios.verizon.net
100.4.108.87	A	mx.hackerpuns.net
100.4.108.87	A	hackerpuns.net
100.4.108.185	A	docsit.net
100.4.110.229	A+PTR	pool-100-4-110-229.nrflva.fios.verizon.net
100.4.112.96	A+PTR	pool-100-4-112-96.nrflva.east.verizon.net
100.4.112.98	A+PTR	pool-100-4-112-98.nrflva.east.verizon.net
100.4.113.47	A+PTR	pool-100-4-113-47.nrflva.east.verizon.net
100.4.114.198	A+PTR	pool-100-4-114-198.nrflva.east.verizon.net
100.4.114.198	A	an0mal0us.com
100.4.115.4	A	mail.shorehub.com
100.4.115.4	A	shorehub.com
100.4.116.54	A+PTR	pool-100-4-116-54.nrflva.east.verizon.net
100.4.116.186	A+PTR	pool-100-4-116-186.nrflva.east.verizon.net
100.4.116.186	A	builtbygrant.com
100.4.116.223	PTR	pool-100-4-116-223.nrflva.east.verizon.net
100.4.116.223	A	mail.acjlaw.net
100.4.116.223	A	acjlaw.net
100.4.118.103	PTR	pool-100-4-118-103.nrflva.east.verizon.net
100.4.118.183	A+PTR	pool-100-4-118-183.nrflva.east.verizon.net
100.4.119.138	A	mail.acjlaw.net
100.4.122.100	A+PTR	pool-100-4-122-100.nrflva.east.verizon.net
100.4.123.9	A+PTR	pool-100-4-123-9.nrflva.east.verizon.net
100.4.123.148	PTR	pool-100-4-123-148.nrflva.east.verizon.net