diff --git a/data/dns/0l.dn42 b/data/dns/0l.dn42
index 63fd2a6fa..449f92413 100644
--- a/data/dns/0l.dn42
+++ b/data/dns/0l.dn42
@@ -3,6 +3,6 @@ descr:              /dev/nulll dns
 admin-c:            STV0G-DN42
 tech-c:             STV0G-DN42
 mnt-by:             NULLL-MNT
-nserver:            ns1.0l.dn42 172.23.156.1
-nserver:            ns2.0l.dn42 172.23.156.7
+nserver:            ns1.0l.dn42 172.23.156.162
+nserver:            ns1.0l.dn42 fd42:4dd0:ff00:101:5054:ff:fe2d:d2ca
 source:             DN42
diff --git a/data/inetnum/172.23.156.0_23 b/data/inetnum/172.23.156.0_23
index 9e167ba68..d6f01235f 100644
--- a/data/inetnum/172.23.156.0_23
+++ b/data/inetnum/172.23.156.0_23
@@ -5,7 +5,7 @@ country:            DE
 admin-c:            STV0G-DN42
 tech-c:             STV0G-DN42
 mnt-by:             NULLL-MNT
-nserver:            ns0.0l.dn42
+nserver:            ns1.0l.dn42
 status:             ALLOCATED
 cidr:               172.23.156.0/23
 source:             DN42
diff --git a/data/inetnum/172.23.156.0_25 b/data/inetnum/172.23.156.0_25
index 6abbcd64f..32b424f56 100644
--- a/data/inetnum/172.23.156.0_25
+++ b/data/inetnum/172.23.156.0_25
@@ -6,6 +6,6 @@ admin-c:            STV0G-DN42
 tech-c:             STV0G-DN42
 mnt-by:             NULLL-MNT
 status:             ASSIGNED
-nserver:            ns0.0l.dn42
+nserver:            ns1.0l.dn42
 cidr:               172.23.156.0/25
 source:             DN42
diff --git a/data/inetnum/172.23.156.128_26 b/data/inetnum/172.23.156.128_26
index a61a0872c..4c6475fbe 100644
--- a/data/inetnum/172.23.156.128_26
+++ b/data/inetnum/172.23.156.128_26
@@ -6,6 +6,6 @@ admin-c:            STV0G-DN42
 tech-c:             STV0G-DN42
 mnt-by:             NULLL-MNT
 status:             ASSIGNED
-nserver:            ns0.0l.dn42
+nserver:            ns1.0l.dn42
 cidr:               172.23.156.128/26
 source:             DN42
diff --git a/data/inetnum/172.23.157.0_24 b/data/inetnum/172.23.157.0_24
index 47d77d2f5..3dbe928cb 100644
--- a/data/inetnum/172.23.157.0_24
+++ b/data/inetnum/172.23.157.0_24
@@ -6,6 +6,6 @@ admin-c:            STV0G-DN42
 tech-c:             STV0G-DN42
 mnt-by:             NULLL-MNT
 status:             ASSIGNED
-nserver:            ns0.0l.dn42
+nserver:            ns1.0l.dn42
 cidr:               172.23.157.0/24
 source:             DN42