Reverse DNS Drilldown.



Searching 23 Aug 2017:

128.0.0.0/16 - 76% of Class C ranges have records [ARIN]
128.1.0.0/16 - 100% of Class C ranges have records [barrnet.net]
128.2.0.0/16 - 100% of Class C ranges have records [cmu.edu]
128.3.0.0/16 - 100% of Class C ranges have records [es.net]
128.4.0.0/16 - 100% of Class C ranges have records [udel.edu]
128.6.0.0/16 - 100% of Class C ranges have records [rutgers.edu]
128.7.0.0/16 - 100% of Class C ranges have records [RIPE]
128.8.0.0/16 - 100% of Class C ranges have records [umd.edu]
128.9.0.0/16 - 100% of Class C ranges have records [isi.edu]
128.10.0.0/16 - 100% of Class C ranges have records [rice.edu]
128.11.0.0/16 - 100% of Class C ranges have records [cscehub.com]
128.12.0.0/16 - 100% of Class C ranges have records [stanford.edu]
128.15.0.0/16 - 100% of Class C ranges have records [es.net]
128.16.0.0/16 - 100% of Class C ranges have records [ac.uk]
128.18.0.0/16 - 100% of Class C ranges have records [sri.com]
128.19.0.0/16 - 100% of Class C ranges have records [sspl.disa.mil]
128.20.0.0/16 - 100% of Class C ranges have records [army.mil]
128.22.0.0/16 - 75% of Class C ranges have records [ARIN]
128.23.0.0/16 - 100% of Class C ranges have records [musc.edu]
128.26.0.0/16 - 100% of Class C ranges have records [afnoc.af.mil]
128.27.0.0/16 - 93% of Class C ranges have records [ARIN]
128.28.0.0/16 - 100% of Class C ranges have records [ARIN]
128.29.0.0/16 - 100% of Class C ranges have records [mitre.org]
128.30.0.0/16 - 100% of Class C ranges have records [mit.edu]
128.31.0.0/16 - 100% of Class C ranges have records [mit.edu]
128.32.0.0/16 - 100% of Class C ranges have records [berkeley.edu]
128.33.0.0/16 - 100% of Class C ranges have records [bbn.com]
128.34.0.0/16 - 100% of Class C ranges have records [nosc.mil]
128.35.0.0/16 - 100% of Class C ranges have records [corpnamesvcs.com]
128.36.0.0/16 - 100% of Class C ranges have records [yale.edu]
128.37.0.0/16 - 100% of Class C ranges have records [army.mil]
128.38.0.0/16 - 100% of Class C ranges have records [nswc.navy.mil]
128.39.0.0/16 - 100% of Class C ranges have records [sunet.se]
128.40.0.0/16 - 100% of Class C ranges have records [ts.bcc.ac.uk]
128.41.0.0/16 - 100% of Class C ranges have records [ac.uk]
128.42.0.0/16 - 100% of Class C ranges have records [purdue.edu]
128.43.0.0/16 - 100% of Class C ranges have records [drenet.dnd.ca]
128.44.0.0/16 - 100% of Class C ranges have records [army.mil]
128.46.0.0/16 - 100% of Class C ranges have records [rice.edu]
128.47.0.0/16 - 100% of Class C ranges have records [army.mil]
128.48.0.0/16 - 100% of Class C ranges have records [ucop.edu]
128.49.0.0/16 - 100% of Class C ranges have records [nosc.mil]
128.52.0.0/16 - 100% of Class C ranges have records [mit.edu]
128.53.0.0/16 - 99% of Class C ranges have records [sri.com]
128.54.0.0/16 - 100% of Class C ranges have records [nosc.mil]
128.55.0.0/16 - 100% of Class C ranges have records [es.net]
128.56.0.0/16 - 100% of Class C ranges have records [usna.navy.mil]
128.58.0.0/16 - 100% of Class C ranges have records [slb.com]
128.59.0.0/16 - 100% of Class C ranges have records [umich.edu]
128.60.0.0/16 - 100% of Class C ranges have records [nrl.navy.mil]
128.61.0.0/16 - 100% of Class C ranges have records [gatech.edu]
128.62.0.0/16 - 100% of Class C ranges have records [illinois.edu]
128.63.0.0/16 - 100% of Class C ranges have records [army.mil]
128.64.0.0/16 - 100% of Class C ranges have records [interop.net]
128.65.0.0/16 - 33% of Class C ranges have records [ARIN]
128.68.0.0/16 - 100% of Class C ranges have records [ARIN]
128.69.0.0/16 - 100% of Class C ranges have records [ARIN]
128.70.0.0/16 - 100% of Class C ranges have records [ARIN]
128.71.0.0/16 - 100% of Class C ranges have records [ARIN]
128.72.0.0/16 - 100% of Class C ranges have records [ARIN]
128.73.0.0/16 - 100% of Class C ranges have records [ARIN]
128.74.0.0/16 - 100% of Class C ranges have records [ARIN]
128.75.0.0/16 - 100% of Class C ranges have records [ARIN]
128.76.0.0/16 - 100% of Class C ranges have records [ns.tele.dk]
128.77.0.0/16 - 100% of Class C ranges have records [ns.tele.dk]
128.78.0.0/16 - 100% of Class C ranges have records [bouyguesbox.fr]
128.79.0.0/16 - 100% of Class C ranges have records [bouyguesbox.fr]
128.82.0.0/16 - 100% of Class C ranges have records [wm.edu]
128.83.0.0/16 - 100% of Class C ranges have records [illinois.edu]
128.84.0.0/16 - 100% of Class C ranges have records [cornell.edu]
128.85.0.0/16 - 100% of Class C ranges have records [telecodrilltech.com]
128.86.0.0/16 - 100% of Class C ranges have records [ja.net]
128.87.0.0/16 - 100% of Class C ranges have records [marconicomms.com]
128.88.0.0/16 - 100% of Class C ranges have records [hp.net]
128.89.0.0/16 - 100% of Class C ranges have records [bbn.com]
128.91.0.0/16 - 100% of Class C ranges have records [udel.edu]
128.92.0.0/16 - 100% of Class C ranges have records [near.net]
128.93.0.0/16 - 100% of Class C ranges have records [inria.fr]
128.94.0.0/16 - 100% of Class C ranges have records [att.net]
128.95.0.0/16 - 100% of Class C ranges have records [washington.edu]
128.96.0.0/16 - 100% of Class C ranges have records [telcordia.com]
128.97.0.0/16 - 100% of Class C ranges have records [ucla.edu]
128.98.0.0/16 - 100% of Class C ranges have records [qinetiq-tim.net]
128.99.0.0/16 - 100% of Class C ranges have records [northrop.com]
128.100.0.0/16 - 100% of Class C ranges have records [cs.utoronto.ca]
128.101.0.0/16 - 100% of Class C ranges have records [umn.edu]
128.102.0.0/16 - 100% of Class C ranges have records [nasa.gov]
128.103.0.0/16 - 100% of Class C ranges have records [harvard.edu]
128.104.0.0/16 - 100% of Class C ranges have records [umich.edu]
128.105.0.0/16 - 100% of Class C ranges have records [wisc.edu]
128.106.0.0/16 - 100% of Class C ranges have records [ARIN]
128.107.0.0/16 - 100% of Class C ranges have records [cisco.com]
128.108.0.0/16 - 100% of Class C ranges have records [swagman.com]
128.109.0.0/16 - 100% of Class C ranges have records [sdsc.edu]
128.110.0.0/16 - 100% of Class C ranges have records [utah.edu]
128.111.0.0/16 - 100% of Class C ranges have records [ucsb.edu]
128.112.0.0/16 - 100% of Class C ranges have records [princeton.edu]
128.113.0.0/16 - 100% of Class C ranges have records [rpi.edu]
128.114.0.0/16 - 100% of Class C ranges have records [zocalo.net]
128.115.0.0/16 - 100% of Class C ranges have records [es.net]
128.116.0.0/16 - 100% of Class C ranges have records [ucar.edu]
128.117.0.0/16 - 100% of Class C ranges have records [ucar.edu]
128.118.0.0/16 - 100% of Class C ranges have records [psu.edu]
128.119.0.0/16 - 100% of Class C ranges have records [umass.edu]
128.120.0.0/16 - 100% of Class C ranges have records [ucdavis.edu]
128.121.0.0/16 - 100% of Class C ranges have records [ntt.net]
128.122.0.0/16 - 100% of Class C ranges have records [nyu.edu]
128.123.0.0/16 - 100% of Class C ranges have records [nmsu.edu]
128.124.0.0/16 - 100% of Class C ranges have records [umc.net.ua]
128.125.0.0/16 - 100% of Class C ranges have records [usc.edu]
128.126.0.0/16 - 100% of Class C ranges have records [lmco.com]
128.127.0.0/16 - 53% of Class C ranges have records [ARIN]
128.128.0.0/16 - 100% of Class C ranges have records [whoi.edu]
128.129.0.0/16 - 100% of Class C ranges have records [logica.com]
128.130.0.0/16 - 100% of Class C ranges have records [tuwien.ac.at]
128.131.0.0/16 - 100% of Class C ranges have records [tuwien.ac.at]
128.132.0.0/16 - 100% of Class C ranges have records [rlcn.rl.af.mil]
128.134.0.0/16 - 100% of Class C ranges have records [dns.kr]
128.135.0.0/16 - 100% of Class C ranges have records [yale.edu]
128.136.0.0/16 - 100% of Class C ranges have records [peak-10.com]
128.137.0.0/16 - 100% of Class C ranges have records [gene.com]
128.138.0.0/16 - 100% of Class C ranges have records [colorado.edu]
128.139.0.0/16 - 100% of Class C ranges have records [huji.ac.il]
128.140.0.0/16 - 86% of Class C ranges have records [ARIN]
128.141.0.0/16 - 100% of Class C ranges have records [cern.ch]
128.142.0.0/16 - 100% of Class C ranges have records [cern.ch]
128.143.0.0/16 - 100% of Class C ranges have records [virginia.edu]
128.144.0.0/16 - 100% of Class C ranges have records [arc.ab.ca]
128.145.0.0/16 - 100% of Class C ranges have records [cogentco.com]
128.146.0.0/16 - 100% of Class C ranges have records [ohio-state.edu]
128.147.0.0/16 - 100% of Class C ranges have records [upmc.edu]
128.148.0.0/16 - 100% of Class C ranges have records [ucsb.edu]
128.149.0.0/16 - 100% of Class C ranges have records [isc-sns.net]
128.150.0.0/16 - 100% of Class C ranges have records [nsf.gov]
128.151.0.0/16 - 100% of Class C ranges have records [rochester.edu]
128.152.0.0/16 - 100% of Class C ranges have records [hac.com]
128.153.0.0/16 - 100% of Class C ranges have records [clarkson.edu]
128.154.0.0/16 - 100% of Class C ranges have records [nasa.gov]
128.155.0.0/16 - 100% of Class C ranges have records [nasa.gov]
128.156.0.0/16 - 100% of Class C ranges have records [nasa.gov]
128.157.0.0/16 - 100% of Class C ranges have records [nasa.gov]
128.158.0.0/16 - 100% of Class C ranges have records [nasa.gov]
128.159.0.0/16 - 100% of Class C ranges have records [nasa.gov]
128.160.0.0/16 - 100% of Class C ranges have records [nrlssc.navy.mil]
128.161.0.0/16 - 100% of Class C ranges have records [nasa.gov]
128.162.0.0/16 - 100% of Class C ranges have records [sgi.com]
128.163.0.0/16 - 100% of Class C ranges have records [uky.edu]
128.164.0.0/16 - 100% of Class C ranges have records [gwu.edu]
128.165.0.0/16 - 100% of Class C ranges have records [es.net]
128.167.0.0/16 - 100% of Class C ranges have records [cscehub.com]
128.168.0.0/16 - 100% of Class C ranges have records [data102.com]
128.169.0.0/16 - 100% of Class C ranges have records [uthsc.edu]
128.170.0.0/16 - 100% of Class C ranges have records [l-3com.com]
128.171.0.0/16 - 100% of Class C ranges have records [hawaii.edu]
128.172.0.0/16 - 100% of Class C ranges have records [vcu.edu]
128.173.0.0/16 - 100% of Class C ranges have records [cogentco.com]
128.174.0.0/16 - 100% of Class C ranges have records [illinois.edu]
128.175.0.0/16 - 100% of Class C ranges have records [udel.edu]
128.176.0.0/16 - 100% of Class C ranges have records [uni-muenster.de]
128.177.0.0/16 - 100% of Class C ranges have records [above.net]
128.178.0.0/16 - 100% of Class C ranges have records [epfl.ch]
128.179.0.0/16 - 100% of Class C ranges have records [epfl.ch]
128.180.0.0/16 - 100% of Class C ranges have records [lehigh.edu]
128.182.0.0/16 - 100% of Class C ranges have records [psc.edu]
128.183.0.0/16 - 100% of Class C ranges have records [nasa.gov]
128.184.0.0/16 - 100% of Class C ranges have records [deakin.edu.au]
128.186.0.0/16 - 100% of Class C ranges have records [lbl.gov]
128.187.0.0/16 - 100% of Class C ranges have records [byu.edu]
128.188.0.0/16 - 100% of Class C ranges have records [near.net]
128.189.0.0/16 - 100% of Class C ranges have records [ubc.ca]
128.190.0.0/16 - 100% of Class C ranges have records [army.mil]
128.191.0.0/16 - 100% of Class C ranges have records [uu.net]
128.192.0.0/16 - 100% of Class C ranges have records [uga.edu]
128.193.0.0/16 - 100% of Class C ranges have records [merit.net]
128.194.0.0/16 - 100% of Class C ranges have records [tamu.edu]
128.195.0.0/16 - 100% of Class C ranges have records [uci.edu]
128.196.0.0/16 - 100% of Class C ranges have records [arizona.edu]
128.197.0.0/16 - 100% of Class C ranges have records [bu.edu]
128.198.0.0/16 - 100% of Class C ranges have records [uccs.edu]
128.199.0.0/16 - 99% of Class C ranges have records [ARIN]
128.200.0.0/16 - 100% of Class C ranges have records [uci.edu]
128.201.0.0/16 - 32% of Class C ranges have records [ARIN]
128.202.0.0/16 - 100% of Class C ranges have records [afnoc.af.mil]
128.203.0.0/16 - 100% of Class C ranges have records [uu.net]
128.204.0.0/16 - 92% of Class C ranges have records [ARIN]
128.205.0.0/16 - 100% of Class C ranges have records [buffalo.edu]
128.206.0.0/16 - 100% of Class C ranges have records [missouri.edu]
128.208.0.0/16 - 100% of Class C ranges have records [washington.edu]
128.210.0.0/16 - 100% of Class C ranges have records [purdue.edu]
128.211.0.0/16 - 100% of Class C ranges have records [rice.edu]
128.212.0.0/16 - 100% of Class C ranges have records [eds.com]
128.213.0.0/16 - 100% of Class C ranges have records [rpi.edu]
128.214.0.0/16 - 100% of Class C ranges have records [funet.fi]
128.215.0.0/16 - 100% of Class C ranges have records [intel.com]
128.216.0.0/16 - 100% of Class C ranges have records [afnoc.af.mil]
128.217.0.0/16 - 100% of Class C ranges have records [nasa.gov]
128.218.0.0/16 - 100% of Class C ranges have records [berkeley.edu]
128.219.0.0/16 - 100% of Class C ranges have records [ornl.gov]
128.220.0.0/16 - 100% of Class C ranges have records [jhu.edu]
128.221.0.0/16 - 100% of Class C ranges have records [emc.com]
128.222.0.0/16 - 100% of Class C ranges have records [emc.com]
128.223.0.0/16 - 100% of Class C ranges have records [uoregon.edu]
128.224.0.0/16 - 100% of Class C ranges have records [windriver.com]
128.226.0.0/16 - 100% of Class C ranges have records [binghamton.edu]
128.227.0.0/16 - 100% of Class C ranges have records [ufl.edu]
128.228.0.0/16 - 100% of Class C ranges have records [cuny.edu]
128.229.0.0/16 - 100% of Class C ranges have records [bah.com]
128.230.0.0/16 - 100% of Class C ranges have records [syr.edu]
128.231.0.0/16 - 100% of Class C ranges have records [nih.gov]
128.232.0.0/16 - 100% of Class C ranges have records [csx.cam.ac.uk]
128.233.0.0/16 - 100% of Class C ranges have records [usask.ca]
128.235.0.0/16 - 100% of Class C ranges have records [uthscsa.edu]
128.236.0.0/16 - 100% of Class C ranges have records [afnoc.af.mil]
128.237.0.0/16 - 100% of Class C ranges have records [cmu.edu]
128.238.0.0/16 - 100% of Class C ranges have records [poly.edu]
128.239.0.0/16 - 100% of Class C ranges have records [wm.edu]
128.240.0.0/16 - 100% of Class C ranges have records [ncl.ac.uk]
128.241.0.0/16 - 100% of Class C ranges have records [ntt.net]
128.242.0.0/16 - 100% of Class C ranges have records [ntt.net]
128.243.0.0/16 - 100% of Class C ranges have records [warwick.ac.uk]
128.244.0.0/16 - 100% of Class C ranges have records [jhuapl.edu]
128.246.0.0/16 - 100% of Class C ranges have records [basf-ag.de]
128.248.0.0/16 - 100% of Class C ranges have records [uic.edu]
128.249.0.0/16 - 100% of Class C ranges have records [bcm.edu]
128.250.0.0/16 - 100% of Class C ranges have records [unimelb.net.au]
128.251.0.0/16 - 100% of Class C ranges have records [alcatel.com]
128.252.0.0/16 - 100% of Class C ranges have records [wustl.edu]
128.253.0.0/16 - 100% of Class C ranges have records [cornell.edu]
128.254.0.0/16 - 50% of Class C ranges have records [ARIN]
128.255.0.0/16 - 100% of Class C ranges have records [uiowa.edu]
(C) Copyright 2015-2017 R. Scott Perry