diff --git a/data/dns/tk.dn42 b/data/dns/tk.dn42
new file mode 100644
index 000000000..1994f7ecb
--- /dev/null
+++ b/data/dns/tk.dn42
@@ -0,0 +1,7 @@
+domain:             tk.dn42
+admin-c:            KEUIN-DN42
+tech-c:             KEUIN-DN42
+mnt-by:             KEUIN-MNT
+nserver:            ns1.tk.dn42 172.23.36.65
+nserver:            ns1.tk.dn42 fd77:7777::1
+source:             DN42
diff --git a/data/inet6num/fd77:7777::_48 b/data/inet6num/fd77:7777::_48
index 41bbe4c9b..c8dcd6281 100644
--- a/data/inet6num/fd77:7777::_48
+++ b/data/inet6num/fd77:7777::_48
@@ -8,4 +8,5 @@ admin-c:            KEUIN-DN42
 tech-c:             KEUIN-DN42
 mnt-by:             KEUIN-MNT
 status:             ASSIGNED
+nserver:            ns1.tk.dn42
 source:             DN42
diff --git a/data/inetnum/172.23.36.64_27 b/data/inetnum/172.23.36.64_27
index 03f014c95..f8470e2a6 100644
--- a/data/inetnum/172.23.36.64_27
+++ b/data/inetnum/172.23.36.64_27
@@ -7,6 +7,5 @@ mnt-by:             KEUIN-MNT
 status:             ASSIGNED
 country:            CN
 country:            US
-nserver:            ns1.keuin.dn42
-nserver:            ns2.keuin.dn42
+nserver:            ns1.tk.dn42
 source:             DN42