concurrentcourses.org


domain

Summary

concurrentcourses.org is delegated to two nameservers, however one delegated nameserver is missing in the zone and one other nameserver is listed instead. Two of them are on the same IP network. Incoming mail for concurrentcourses.org is handled by one mailserver at org. concurrentcourses.org has one IP number , but no corresponding reverse pointer. postsecondaryresearch.org point to the same IP and also shares nameservers. equitycampaign.org, www.tc.columbia.edu, teacherscollege.edu, gogo.tc.columbia.edu, policyforchildren.org and at least two other hosts point to the same IP. concurrentcourses.org use this as a mailserver. tc.edu, cjr.org, 3rox.net, hrcr.org, sdsc.edu and at least 100 other hosts share nameservers with this domain. concurrentcourses.org is hosted on a server in United States. Reputation is not yet known.



DNS Records

baserecordnameipreverserouteas
concurrentcourses.orga 160.39.80.40
United States
postsecondaryresearch.org160.39.0.0/16
AS14
COLUMBIA University in the City of New York Network Operations Academic Information Systems 612 West 115th Street New York, NY 10025
gogo.tc.columbia.edu
columbiaculturemap.org
ns ext-ns1.columbia.edu (only in zone)128.59.59.165
United States
128.59.0.0/16
saell.cc.columbia.edu (only in delegation)128.59.59.218
United States
tangerine.cc.columbia.edu
dns2.itd.umich.edu141.211.125.15
United States
twelvemonkeys.mr.itd.umich.edu141.211.0.0/16
University of Michigan IT Communications Services 4251 Plymouth Road Ann Arbor MI 48105, US
AS36375
UMICH-ASN1 University of Michigan
mx 100concurrentcourses.org160.39.80.40
United States
postsecondaryresearch.org160.39.0.0/16
AS14
COLUMBIA University in the City of New York Network Operations Academic Information Systems 612 West 115th Street New York, NY 10025
gogo.tc.columbia.edu
columbiaculturemap.org
orgns-soa a0.org.afilias-nst.info199.19.56.1
Canada
199.19.56.0/24
REACH (Customer Route)
AS12041
AFILIAS-NST Afilias Limited - Prefixes announced from this origin AS are anycast from several places. See RFC 4787. -
ns d0.org.afilias-nst.org199.19.57.1
Canada
199.19.57.0/24
REACH (Customer Route)
a2.org.afilias-nst.info199.249.112.1
Canada
199.249.112.0/24
Afilias anycast block for A.ORG
AS42
Packet Clearing House - www.pch.net
b2.org.afilias-nst.org199.249.120.1
Canada
199.249.120.0/24
Afilias anycast block for B.ORG
a0.org.afilias-nst.info199.19.56.1
Canada
199.19.56.0/24
REACH (Customer Route)
AS12041
AFILIAS-NST Afilias Limited - Prefixes announced from this origin AS are anycast from several places. See RFC 4787. -
b0.org.afilias-nst.org199.19.54.1
Canada
199.19.54.0/24
REACH (Customer Route)
c0.org.afilias-nst.info199.19.53.1
Canada
c0.org.afilias-nst.org199.19.53.0/24
REACH (Customer Route)
edu   afilias-nst.org   org.afilias-nst.org   org.afilias-nst.info   info   afilias-nst.info   columbia.edu   umich.edu   cc.columbia.edu   tc.columbia.edu  

Thumbnails powered by Thumbshots

graph

dot

shared

ip numbers of host

160.39.80.40


domains using this as mailserver

concurrentcourses.org(primary)

domains using this as mailserver under another name

columbiaculturemap.org(primary)
equitycampaign.org(primary)
gogo.tc.columbia.edu(primary)
postsecondaryresearch.org(primary)


domains sharing nameservers

0.43.211.141.in-addr.arpa
105.128.in-addr.arpa
111.156.in-addr.arpa
125.211.141.in-addr.arpa
133.211.141.in-addr.arpa
14.211.141.in-addr.arpa
144.211.141.in-addr.arpa
152.75.207.in-addr.arpa
16.59.128.in-addr.arpa
16.61.198.in-addr.arpa
18.59.128.in-addr.arpa
182.128.in-addr.arpa
20.61.198.in-addr.arpa
207.12.192.in-addr.arpa
211.141.in-addr.arpa
213.141.in-addr.arpa
22.211.141.in-addr.arpa
228.128.in-addr.arpa
244.43.192.in-addr.arpa
249.132.in-addr.arpa
39.160.in-addr.arpa
3rox.net
43.211.141.in-addr.arpa
59.128.in-addr.arpa
64.59.128.in-addr.arpa
65.59.128.in-addr.arpa
66.59.128.in-addr.arpa
67.59.128.in-addr.arpa
93.211.141.in-addr.arpa
96.146.in-addr.arpa
96.22.211.141.in-addr.arpa
aasianst.org
adlsa.0.43.211.141.in-addr.arpa
alumni.umich.edu
artbots.org
auduboncenter.org
barnard.edu
beepage.org
bf.umich.edu
brooklyn.cuny.edu
caup.umich.edu
ccs.itd.umich.edu
childpolicy.org
ciaonet.org
ciera.org
cis.columbia.edu
cis.cuny.edu
citi.umich.edu
cjr.org
clements.umich.edu
columbia.edu
columbialungtransplant.net
columbiamelanomacenter.net
columbiamnc.org
columbianeurosurgery.org
columbiapresbyterian.net
columbiauniversity.net
columbiauniversity.org
comet.columbia.edu
core.columbia.edu
cs.columbia.edu
ctr.columbia.edu
cubhis.columbia.edu
cufilmfest.com
cumc.columbia.edu
cuny.edu
dbmi.columbia.edu
di.itd.umich.edu
dmi.columbia.edu
dorkbot.net
dorkbot.org
dupont.org
earthscape.org
ee.columbia.edu
empaforum.com
empaforum.net
evolvenewyork.com
evolvenewyork.org
exeas.org
fathom.com
gc.cuny.edu
goaskalice.com
hivtips.com
hivtips.org
hrcr.org
hs.columbia.edu
hunter.cuny.edu
jazzstudiesonline.org
kermit-project.org
lse.ac.uk
millertheater.com
millertheatre.com
ncl.cs.columbia.edu
p-i-r.org
partnershiptool.net
postsecondaryresearch.org
pulitzer.org
rs.itd.umich.edu
sdsc.edu
seriousaboutconservation.org
serranoscholars.net
shuli.com
stat.wisc.edu
tc.edu
umich.com
umich.org
wcbn.org


mailservers used by this domain

concurrentcourses.org(primary)

ip numbers of mailservers

160.39.80.40


nameservers missing in parent delegation

ext-ns1.columbia.edu

nameservers missing in zone

saell.cc.columbia.edu


ip numbers of host
 ip numbers of mailservers
  hostnames sharing ip with a-records
   domains using this as mailserver
    domains using this as mailserver under another name
     mailservers used by this domain
      other names of the mailservers
       domains sharing mailservers under another name
        nameservers used by this domain
         other names of the nameservers
          domains sharing nameservers
           domains sharing nameservers under another name
            ptrs of ip numbers
             reverse names of the mailservers
              reverse names of the nameservers
               nameservers missing in parent delegation
                nameservers missing in zone
postsecondaryresearch.org  X X XX  XXXX    
columbiaculturemap.org  X X XX    XX    
gogo.tc.columbia.edu  X X XX    XX    
equitycampaign.org  X X XX          
ext-ns1.columbia.edu        X     XX  
160.39.80.40XX                
67.59.128.in-addr.arpa          XX      
concurrentcourses.org   X X            
core.columbia.edu          XX      
dante.ilt.columbia.edu  X   X           
dorkbot.net          XX      
hs.columbia.edu          XX      
policyforchildren.org  X   X           
saell.cc.columbia.edu        X       X 
serranoscholars.net          XX      
tangerine.cc.columbia.edu         X    X   
teacherscollege.edu  X   X           
twelvemonkeys.mr.itd.umich.edu         X    X   
www.tc.columbia.edu  X   X           

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date20091202 rtsakmarka rtsakmark2