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100.46.69.in-addr.arpa is delegated to two nameservers, however two extra nameservers are listed in the zone. All nameservers are at q9.com. Two of them are on the same IP network. tng.ca, cicl.ca, cctmsw.com, iupload.com, mynissan.ca and at least 31 other hosts share nameservers with this domain.

100.46.69.in-addr.arpa
ns-soa records
qdns.q9.com
+ 216.220.36.243 216.220.32.0/20 AS12188 243.36.220-216.q9.net
+ --- 243.36.220-216.q9.net
ns records
ns1-auth.q9.com
+ 216.220.35.20 216.220.32.0/20 AS12188 -
+ --- -
ns2-auth.q9.com
+ 216.220.36.20 216.220.32.0/20 AS12188 -
ns3-auth.q9.com
+ 69.46.100.5 69.46.100.0/23 AS36031 -
ns4-auth.q9.com
+ 65.110.164.45 65.110.164.0/23 AS36030 -
nameservers used by this domain
ns1-auth.q9.com
ns2-auth.q9.com
ns3-auth.q9.com
ns4-auth.q9.com
domains sharing nameservers
100.46-69.q9.net
103.46-69.q9.net
103.46.69.in-addr.arpa
105.46-69.q9.net
107.46.69.in-addr.arpa
109.46-69.q9.net
110-65.q9.net
111.46-69.q9.net
125.46-69.q9.net
131-142.q9.net
131.142.in-addr.arpa
15.131-142.q9.net
15.131.142.in-addr.arpa
161.110-65.q9.net
161.110.65.in-addr.arpa
162.110-65.q9.net
164.110-65.q9.net
53.220-216.q9.net
56.220-216.q9.net
58.220-216.q9.net
arcenergytrust.com
arcresources.ca
arcresources.com
cctmsw.com
cicl.ca
cooperators.ca
duncanandcompany.com
easymessage.com
gowlings.com
homeoptionspro.com
iupload.com
myinfiniti.ca
mynissan.ca
themarketingstore.net
tng.ca
venturelabour.com
ip numbers of nameservers
216.220.35.20
216.220.36.20
65.110.164.45
69.46.100.5
reverse names of the nameservers
ns1-auth.q9.com
ns2-auth.q9.com
ns3-auth.q9.com
ns4-auth.q9.com
other names of the nameservers
45.164.110-65.q9.net
5.100.46-69.q9.net
ns13.deepmetrix.com
ns3.wappo.net
ns4.wappo.net
domains sharing nameservers under another name
104.46-69.q9.net
49.220-216.q9.net
62.220-216.q9.net
arcresources.net
ashesandsnoweducation.net
beaplayerclub.com
flyingelephantfoundation.net
flyingelephants.net
wappo.net
nameservers missing in parent delegation
ns3-auth.q9.com
ns4-auth.q9.com