Robtex

Up: 100.12.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 100.12.128.0/18
Down right: 100.12.192.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
100.12.128.106	A	ace-44.com
100.12.131.3	PTR	static-100-12-131-3.nycmny.fios.verizon.net
100.12.131.3	A	mail.rwkerninc.com
100.12.131.3	A	mail.rwkm.com
100.12.131.7	A+PTR	static-100-12-131-7.nycmny.fios.verizon.net
100.12.131.13	A	static-100-12-131-13.nycmny.fios.verizon.net
100.12.131.143	A+PTR	static-100-12-131-143.nycmny.fios.verizon.net
100.12.131.175	A	static-100-12-131-175.nycmny.fios.verizon.net
100.12.131.185	A	static-100-12-131-185.nycmny.fios.verizon.net
100.12.131.191	A	static-100-12-131-191.nycmny.fios.verizon.net
100.12.132.19	A+PTR	static-100-12-132-19.nycmny.fios.verizon.net
100.12.132.19	A	peterny.com
100.12.132.25	A+PTR	static-100-12-132-25.nycmny.fios.verizon.net
100.12.132.25	A	mail.knightnets.net
100.12.132.50	PTR	static-100-12-132-50.nycmny.fios.verizon.net
100.12.132.74	PTR	static-100-12-132-74.nycmny.fios.verizon.net
100.12.134.74	A	gateway.ogroup.net
100.12.134.122	PTR	static-100-12-134-122.nycmny.fios.verizon.net
100.12.134.130	A+PTR	mail.sardis.com
100.12.134.211	A	mail.bteany.com
100.12.134.211	A	mail.bteany.org
100.12.134.222	A	mail.stalinkco.com
100.12.135.20	A+PTR	static-100-12-135-20.nycmny.fios.verizon.net
100.12.135.20	A	belmontldc.com
100.12.137.77	A+PTR	pool-100-12-137-77.nycmny.fios.verizon.net
100.12.137.77	A	nardone.biz
100.12.137.77	A	mailtome.biz
100.12.141.44	A+PTR	pool-100-12-141-44.nycmny.fios.verizon.net
100.12.141.44	A	718it.biz
100.12.141.171	A+PTR	pool-100-12-141-171.nycmny.fios.verizon.net
100.12.141.171	A	citywidecomms.com
100.12.152.76	A+PTR	pool-100-12-152-76.nycmny.fios.verizon.net
100.12.152.76	A	mail.yaseraziz.com
100.12.152.76	A	dc-1ab5ab27.yaserabbasi.com
100.12.154.211	A+PTR	pool-100-12-154-211.nycmny.fios.verizon.net
100.12.155.47	PTR	pool-100-12-155-47.nycmny.fios.verizon.net
100.12.156.107	A+PTR	pool-100-12-156-107.nycmny.fios.verizon.net
100.12.156.107	A	fhpi.info
100.12.156.107	A	mail.vipclubber.com
100.12.158.131	A+PTR	autotraker.com
100.12.158.131	A	riggory.com
100.12.158.132	A+PTR	autocontroller.com
100.12.158.147	PTR	mail.grecoreadymix.com
100.12.158.147	A	mail1.grecoreadymix.com
100.12.159.34	A	mail.roadlimo.com
100.12.159.178	A	mail.bnvhomecare.com
100.12.159.243	A+PTR	static-100-12-159-243.nycmny.fios.verizon.net
100.12.161.29	A+PTR	static-100-12-161-29.nycmny.fios.verizon.net
100.12.161.29	A	learningleaders.org.2.0001.arsmtp.com
100.12.161.235	A+PTR	static-100-12-161-235.nycmny.fios.verizon.net
100.12.161.235	A	alphalabho.net
100.12.162.3	A+PTR	static-100-12-162-3.nycmny.fios.verizon.net
100.12.162.3	A	remote.amprosec.net
100.12.162.9	A	mail.raphanlaw.biz
100.12.162.9	A	raphanlaw.biz
100.12.162.19	PTR	static-100-12-162-19.nycmny.fios.verizon.net
100.12.162.153	A+PTR	static-100-12-162-153.nycmny.fios.verizon.net
100.12.162.153	A	server.alexanderdesign.com
100.12.162.153	A	mail.server.alexanderdesign.com
100.12.162.171	PTR	static-100-12-162-171.nycmny.fios.verizon.net
100.12.162.171	A	mail.vosswaterusa.com
100.12.165.192	A+PTR	pool-100-12-165-192.nycmny.fios.verizon.net
100.12.167.197	A+PTR	pool-100-12-167-197.nycmny.fios.verizon.net
100.12.167.197	A	cplfull.com
100.12.167.197	A	tntcplfull.com
100.12.168.24	A+PTR	pool-100-12-168-24.nycmny.fios.verizon.net
100.12.168.24	A	secondlooksolutions.com
100.12.169.66	A+PTR	static-100-12-169-66.nycmny.fios.verizon.net
100.12.169.77	A	ns3.jericho-schools.org
100.12.171.40	A+PTR	pool-100-12-171-40.nycmny.fios.verizon.net
100.12.171.40	A	dermisphere.com
100.12.171.40	A	scaffosphere.com
100.12.171.56	A	darwin.oankali.net
100.12.171.76	PTR	pool-100-12-171-76.nycmny.fios.verizon.net
100.12.171.162	A+PTR	pool-100-12-171-162.nycmny.fios.verizon.net
100.12.171.190	A+PTR	pool-100-12-171-190.nycmny.fios.verizon.net
100.12.171.190	A	protonovar.com
100.12.173.62	A+PTR	pool-100-12-173-62.nycmny.fios.verizon.net
100.12.175.159	PTR	pool-100-12-175-159.nycmny.fios.verizon.net
100.12.175.159	A	3amengineering.com
100.12.179.173	PTR	pool-100-12-179-173.nycmny.fios.verizon.net
100.12.185.112	A	mmarpi.com
100.12.186.241	PTR	pool-100-12-186-241.nycmny.fios.verizon.net
100.12.187.141	A+PTR	pool-100-12-187-141.nycmny.fios.verizon.net
100.12.188.238	A+PTR	pool-100-12-188-238.nycmny.fios.verizon.net
100.12.188.238	A	queensprm.com
100.12.189.46	PTR	pool-100-12-189-46.nycmny.fios.verizon.net
100.12.190.94	A+PTR	pool-100-12-190-94.nycmny.fios.verizon.net
100.12.192.23	A	authman.net
100.12.192.219	A+PTR	pool-100-12-192-219.nycmny.fios.verizon.net
100.12.192.219	A	maspethsupermarket.com
100.12.193.201	A+PTR	pool-100-12-193-201.nycmny.fios.verizon.net
100.12.193.201	A	yurasits.com
100.12.194.249	A+PTR	pool-100-12-194-249.nycmny.fios.verizon.net
100.12.195.156	A+PTR	pool-100-12-195-156.nycmny.fios.verizon.net
100.12.195.186	A+PTR	pool-100-12-195-186.nycmny.fios.verizon.net
100.12.195.240	A	shadowfxstudio.com
100.12.198.60	PTR	pool-100-12-198-60.nycmny.fios.verizon.net
100.12.198.96	PTR	pool-100-12-198-96.nycmny.fios.verizon.net
100.12.198.96	A	iwin.life
100.12.198.243	A+PTR	pool-100-12-198-243.nycmny.fios.verizon.net
100.12.199.32	A+PTR	pool-100-12-199-32.nycmny.fios.verizon.net
100.12.199.32	A	7thspecialforces.com
100.12.200.18	A+PTR	pool-100-12-200-18.nycmny.fios.verizon.net
100.12.200.18	A	umaru.network
100.12.200.104	PTR	pool-100-12-200-104.nycmny.fios.verizon.net
100.12.202.76	A	shadowfxstudio.com
100.12.202.90	A+PTR	pool-100-12-202-90.nycmny.fios.verizon.net
100.12.204.146	A+PTR	pool-100-12-204-146.nycmny.fios.verizon.net
100.12.204.146	A	nychickenmarket.com
100.12.204.146	A	laconianfederation.com
100.12.204.242	A+PTR	pool-100-12-204-242.nycmny.fios.verizon.net
100.12.205.158	A	kms.boxx1e.xyz
100.12.206.17	A+PTR	pool-100-12-206-17.nycmny.fios.verizon.net
100.12.206.96	A+PTR	pool-100-12-206-96.nycmny.fios.verizon.net
100.12.206.96	A	dbgig.com
100.12.206.125	A+PTR	pool-100-12-206-125.nycmny.fios.verizon.net
100.12.206.139	A+PTR	pool-100-12-206-139.nycmny.fios.verizon.net
100.12.207.18	A	banglajoy.com
100.12.207.18	A	joshn.homenet.org
100.12.207.134	A+PTR	pool-100-12-207-134.nycmny.fios.verizon.net
100.12.208.76	PTR	pool-100-12-208-76.nycmny.fios.verizon.net
100.12.208.76	A	mail.capems.com
100.12.209.144	A+PTR	pool-100-12-209-144.nycmny.fios.verizon.net
100.12.210.69	A+PTR	pool-100-12-210-69.nycmny.fios.verizon.net
100.12.210.112	A+PTR	pool-100-12-210-112.nycmny.fios.verizon.net
100.12.210.112	A	banglajoy.com
100.12.210.224	A+PTR	pool-100-12-210-224.nycmny.fios.verizon.net
100.12.211.165	A+PTR	pool-100-12-211-165.nycmny.fios.verizon.net
100.12.212.182	A+PTR	pool-100-12-212-182.nycmny.fios.verizon.net
100.12.212.182	A	mail.tedgetplanb.com
100.12.212.182	A	mail.franshomesrv.com
100.12.213.220	A+PTR	pool-100-12-213-220.nycmny.fios.verizon.net
100.12.213.220	A	bmar.us
100.12.214.83	A+PTR	pool-100-12-214-83.nycmny.fios.verizon.net
100.12.214.83	A	3amengineering.com
100.12.214.143	A+PTR	pool-100-12-214-143.nycmny.fios.verizon.net
100.12.214.143	A	gywadmin.com
100.12.215.61	A+PTR	pool-100-12-215-61.nycmny.fios.verizon.net
100.12.216.19	A+PTR	pool-100-12-216-19.nycmny.fios.verizon.net
100.12.217.3	A	email.rtrfs.com
100.12.217.5	A+PTR	ipmail.rtrfs.com
100.12.220.60	PTR	static-100-12-220-60.nycmny.fios.verizon.net
100.12.220.60	A	mail.bfsdivorce.com
100.12.220.60	A	mail.bfslawfirm.com
100.12.220.68	PTR	static-100-12-220-68.nycmny.fios.verizon.net
100.12.220.133	A	nadia.globaldelsys.com
100.12.223.130	A+PTR	pool-100-12-223-130.nycmny.fios.verizon.net
100.12.223.130	A	tymorapro.com
100.12.223.130	A	vlogolution.com
100.12.224.18	A+PTR	pool-100-12-224-18.nycmny.fios.verizon.net
100.12.224.18	A	linuxlabpro.com
100.12.225.95	A	raytrace.raysavage.com
100.12.225.95	A	raytrace0.no-ip.biz
100.12.229.80	A+PTR	pool-100-12-229-80.nycmny.fios.verizon.net
100.12.231.23	A+PTR	pool-100-12-231-23.nycmny.fios.verizon.net
100.12.236.105	A+PTR	pool-100-12-236-105.nycmny.fios.verizon.net
100.12.236.105	A	jwagner010.homedns.org
100.12.236.196	A+PTR	pool-100-12-236-196.nycmny.fios.verizon.net
100.12.236.196	A	menkesonline.com
100.12.237.108	A+PTR	pool-100-12-237-108.nycmny.fios.verizon.net
100.12.239.74	A+PTR	pool-100-12-239-74.nycmny.fios.verizon.net
100.12.239.74	A	tech-oasis.com
100.12.239.108	PTR	pool-100-12-239-108.nycmny.fios.verizon.net
100.12.240.63	A+PTR	pool-100-12-240-63.nycmny.fios.verizon.net
100.12.240.63	A	philchu.net
100.12.240.179	PTR	pool-100-12-240-179.nycmny.fios.verizon.net
100.12.240.222	A+PTR	pool-100-12-240-222.nycmny.fios.verizon.net
100.12.240.222	A	vlp.com
100.12.241.14	A+PTR	pool-100-12-241-14.nycmny.fios.verizon.net
100.12.241.14	A	joshschulte.org
100.12.241.14	A	jesusisniceandstuff.com
100.12.244.116	A	www.harborviewlive.com
100.12.249.27	A	pool-100-12-249-27.nycmny.fios.verizon.net
100.12.249.30	A	pool-100-12-249-30.nycmny.fios.verizon.net
100.12.249.43	A	pool-100-12-249-43.nycmny.fios.verizon.net
100.12.249.82	A	pool-100-12-249-82.nycmny.fios.verizon.net
100.12.249.154	A	pool-100-12-249-154.nycmny.fios.verizon.net
100.12.249.162	A	pool-100-12-249-162.nycmny.fios.verizon.net
100.12.249.196	A	pool-100-12-249-196.nycmny.fios.verizon.net
100.12.249.196	A	bonnetlux.com
100.12.250.102	A+PTR	pool-100-12-250-102.nycmny.fios.verizon.net
100.12.250.102	A	dzclan.com
100.12.250.215	A+PTR	pool-100-12-250-215.nycmny.fios.verizon.net
100.12.250.215	A	mail.kismet-creations.com
100.12.250.215	A	kismet-creations.com
100.12.252.56	A+PTR	pool-100-12-252-56.nycmny.fios.verizon.net
100.12.252.96	A+PTR	pool-100-12-252-96.nycmny.fios.verizon.net
100.12.252.96	A	cubicul.com
100.12.253.84	A+PTR	pool-100-12-253-84.nycmny.fios.verizon.net
100.12.255.33	A+PTR	pool-100-12-255-33.nycmny.fios.verizon.net