81.in-addr.arpa

Delegation
Authoritative answer
Related hostnames

DNS delegation of 81.in-addr.arpa updated: May 22, 2013 7:20:23 PM

Delegation

step	query	auth	servers
1	81.in-addr.arpa.	.	(d,b,l,c,f,i,h,m,e,k,j,g,a).root-servers.net.
2	81.in-addr.arpa.	in-addr.arpa.	(a,f,e,b,d,c).in-addr-servers.arpa.
3	81.in-addr.arpa.	81.in-addr.arpa.	sec1.apnic.net. sns-pb.isc.org. tinnie.arin.net. pri.authdns.ripe.net. ns3.nic.fr. sec3.apnic.net.

We pick d.root-servers.net, one of the 13 root servers (1), and ask it about 81.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask a.in-addr-servers.arpa where we learn that 81.in-addr.arpa is delegated to six name servers, including sec1.apnic.net (3), so we ask that one and get the following answer:

Authoritative answer

ANSWER for 81.in-addr.arpa.
81.in-addr.arpa.	3600	SOA	pri.authdns.ripe.net. dns.ripe.net. ( 1368915251 3600 600 864000 7200 )
	172800	NS	tinnie.arin.net.
	172800	NS	sec1.apnic.net.
	172800	NS	sec3.apnic.net.
	172800	NS	pri.authdns.ripe.net.
	172800	NS	sns-pb.isc.org.
	172800	NS	ns3.nic.fr.
	7200	NSEC	\# 30 0130013002383107696e2d61646472046172706100000722000000000380
	3600	DNSKEY	\# 264 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
	3600	DNSKEY	\# 136 0100030503010001a52220b805106a580fd0b222a4a886aee43c4beeebacdb79ac2edcaed736e69eb8dca34d6421fd43a7f1644ac146d29b8ba17ac7b2a1028f145ac448bfa9105502e0a30ffd0570ea1ee1dbbc2e2a81600f5dc5d9c7c0295a02ff3c91b32f2fe762006cdbc134f87c7e4233c2eaff96aad7f124e29d70cd6eac04c9fa19db2f37
	3600	DNSKEY	\# 136 01000305030100018d75658a41170c4af132f3b5de83ed68d67ca779d3842b762239189b797e1df060fc51dad10ce54b79dd07f1d7b78ec2412d3e7bdbfa9dbed7d4c8486249a0019d6cad7caf437836105c8182361348586be5ed6f3ddfc26e23589e4fccb80bc68d43bc1eeae4c266c5f940c1fb1c5c9226ddbe61dc6cb0a2fd4096d6ab206665
	3600	DNSKEY	\# 264 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
	172800	RRSIG	\# 163 000205030002a30051c4247f519c896f183102383107696e2d616464720461727061007087b43ecaae9a593e9b1f2b35f6c19fe75b2c41675dbbd22cd940294730143f0cbd82d336c29aaa3965b5b554150d5214bad3baa49dd5c707a68d11e4c06d2794ba72c038c8ab6ec5cb1bbf22edd216fe9a71c42eec817c304244d101990ddd5af5c838f4a0bc9347322ce38f00f062cadee0c5294c3d0a56728cf781ba062b
	3600	RRSIG	\# 163 0006050300000e1051c4247f519c896f183102383107696e2d616464720461727061002fca2debae2c2eecb9ed8aeb76a21a24338f1efa97dbb7e8a4fc09bce929c5b48fc5b66b0d49b920ff9c946a91fa9898550db9c8844cef28e585ad010aec953f2eb7f3fdc4b87d5fbcd858e71d595ef0d81fc2af47bad74c6d05712aaa38958a97b152077c3d98aec4afa65303954dd42ccfe447b0476611f1acf65bf3132d28
	7200	RRSIG	\# 163 002f050300001c2051c4247f519c896f183102383107696e2d616464720461727061003025746bd1ed15d9a126b31195a5c181b93590c74f1fc7b935f03c2454ea8de488ba31967081c7f9e092dcc9b2613a608f3001ec73217827bf9121d5d1a12c0ee0e32ea8c975d32788ea9af8ed935ce7c52bd680e05f7ec8c78eab3a593e403f0d87f2a9a7af3e48cd020c54f41a078858e480898fde6693442263b3be5da920
	3600	RRSIG	\# 291 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

fr. net. org. arpa. nic.fr. isc.org. ripe.net. arin.net. apnic.net. ns3.nic.fr. in-addr.arpa. sec1.apnic.net. sns-pb.isc.org. sec3.apnic.net. tinnie.arin.net. 81.in-addr.arpa. root-servers.net. authdns.ripe.net. m.root-servers.net. a.root-servers.net. j.root-servers.net. h.root-servers.net. d.root-servers.net. i.root-servers.net. l.root-servers.net. k.root-servers.net. g.root-servers.net. f.root-servers.net. c.root-servers.net. b.root-servers.net. e.root-servers.net. pri.authdns.ripe.net. in-addr-servers.arpa. b.in-addr-servers.arpa. e.in-addr-servers.arpa. c.in-addr-servers.arpa. d.in-addr-servers.arpa. f.in-addr-servers.arpa. a.in-addr-servers.arpa.
whois fr
whois net
whois org
whois arpa
whois nic.fr
whois isc.org
whois ripe.net
whois arin.net
whois apnic.net
whois in-addr.arpa
whois root-servers.net
whois in-addr-servers.arpa

whois in-addr.arpa, in-addr.arpa
domain info api in-addr.arpa

81.in-addr.arpa is a domain controlled by six domain name servers at isc.org, ripe.net, apnic.net, arin.net and nic.fr having a total of twelve IP numbers. All twelve of them are on different IP networks.

Apricot2013.net, pro.ht, zots.org, nro.org, ripe-ncc.org and at least 200 other hosts share name servers with this domain. Ap-ipv6tf.org, pacnog.org, apnic.org, apia.org, apricot2015.info and at least 15 other hosts share name servers under another name with this domain. 20.81.in-addr.arpa, 691.81.in-addr.arpa, 4.81.in-addr.arpa, 91.81.in-addr.arpa, 15.81.in-addr.arpa and at least 94 other hosts are hosts under this domain. 81.ca, 81.fr, 81.net, 81.biz, 81.cz and at least 115 other hosts are similar domain names.

Also check www.in-addr.arpa and in-addr.arpa.

The name server pri.authdns.ripe.net
All of the about a hundred domains that use the name server pri.authdns.ripe.net use the six name servers ns3.nic.fr, sec1.apnic.net, sec3.apnic.net, tinnie.arin.net, sns-pb.isc.org and pri.authdns.ripe.net together (example: 90.in-addr.arpa, 1.0.193.in-addr.arpa and 217.in-addr.arpa ).

The three name servers ns1, ns2 and ns3.nic.fr together
Half of the about sixty domains that use the three name servers ns1, ns2 and ns3.nic.fr together, hereafter referred to as "name server group 1", point only to the IP number 192.134.4.49 (example: nic.pm, thefrenchreconnexion.net and monidentitemacommunautemonfr.com ).

The name server sec1.apnic.net
There are several hundred of domains that use the name server sec1.apnic.net.

A third of those use the four name servers sec1.apnic.net, sec3.apnic.net, dns0.telstra.net and dns1.telstra.net together (example: 123.1.in-addr.arpa, 217.121.in-addr.arpa and 208.121.in-addr.arpa ).
Four percent of them use the nine name servers sec1.apnic.net, sec3.apnic.net, u.arin.net, v.arin.net, w.arin.net, x.arin.net, z.arin.net, ns2.lacnic.net and sec1.authdns.ripe.net together (example: 8.4.1.0.0.2.ip6.arpa, 5.0.1.0.0.2.ip6.arpa and 0.0.0.2.6.2.ip6.arpa ).
Ten of them point to the IP number 203.133.248.2 (example: cidr-report.org, potaroo.net and iepg.org ).
The name server tinnie.arin.net
There are more than hundred domains that use the name server tinnie.arin.net.

Every fifth of those use the seven name servers ns1.apnic.net, ns3.apnic.net, ns4.apnic.net, tinnie.arin.net, apnic1.dnsnode.net, ns2.lacnic.net and sec1.authdns.ripe.net together (example: b.1.0.0.2.ip6.arpa, 171.in-addr.arpa and 125.in-addr.arpa ).
Eight percent of them use the eight name servers ns-lacnic.nic.mx, ns3.afrinic.net, sec3.apnic.net, tinnie.arin.net, ns.lacnic.net, ns2.lacnic.net, a.arpa.dns.br and sec1.authdns.ripe.net together (example: 201.in-addr.arpa, 181.in-addr.arpa and 2.1.1.0.0.2.ip6.arpa ).
Five of them use the six name servers ns1.apnic.net, ns3.apnic.net, ns4.apnic.net, tinnie.arin.net, apnic1.dnsnode.net and sec1.authdns.ripe.net together (example: 3.0.1.0.0.2.ip6.arpa, 2.0.1.0.0.2.ip6.arpa and c.0.1.0.0.2.ip6.arpa ).
The name server ns3.nic.fr
There are more than two hundred domains that use the name server ns3.nic.fr.

Every fifth of those use name server group 1 (example: 4.134.192.in-addr.arpa, 8.0.5.e164.arpa and faites-vous-un-nom.com ).
About one in six of them use the three name servers ns3.nic.fr, ns1.renater.fr and ns2.renater.fr together (example: 35.50.193.in-addr.arpa, 125.49.193.in-addr.arpa and 24.52.193.in-addr.arpa ).
Eleven percent of them point to the IP number 192.134.4.49 (example: mon-identite-ma-communaute-mon-fr.com, nic.tf and www.fr ).
The name server sns-pb.isc.org
There are several hundred of domains that use the name server sns-pb.isc.org.

Six percent of those use the two name servers sns-pb.isc.org and ns1.media.org together (example: sixes.net, hall.org and mundi.net ).
Six percent of them use the two name servers dns.bsdhost.net and sns-pb.isc.org together (example: kasmail.com, caldream.com and kasworks.com ).
Four percent of them use the seven name servers ns.dns.br, ns3.nic.mx, sns-pb.isc.org, seciu.edu.uy, ultra.edu.uy, ns1.anteldata.com.uy and ns2.anteldata.com.uy together (example: net.uy, edu.uy and org.uy ).
The name server sec3.apnic.net
Twelve of the several hundred of domains that use the name server sec3.apnic.net use the three name servers cumin, sec3 and tinnie.apnic.net together (example: pacnog.info and apricot2017.net ).