diff --git a/data/aut-num/AS4242421887 b/data/aut-num/AS4242421887
new file mode 100644
index 000000000..ff7037cb8
--- /dev/null
+++ b/data/aut-num/AS4242421887
@@ -0,0 +1,8 @@
+aut-num:            AS4242421887
+as-name:            JUST1888-DN42-NETWORK
+descr:              This network is used for training and experimental purposes of Just Holding Group Co., Ltd.
+admin-c:            GEORGE-DN42
+tech-c:             GEORGE-DN42
+mnt-by:             WZWTT-MNT
+org:                ORG-JUST1888
+source:             DN42
diff --git a/data/dns/just1888.dn42 b/data/dns/just1888.dn42
new file mode 100644
index 000000000..dfebb77d1
--- /dev/null
+++ b/data/dns/just1888.dn42
@@ -0,0 +1,10 @@
+domain:             just1888.dn42
+admin-c:            GEORGE-DN42
+tech-c:             GEORGE-DN42
+mnt-by:             WZWTT-MNT
+nserver:            ns1.just1888.dn42 172.21.90.192
+nserver:            ns1.just1888.dn42 fd42:beef:1888::1
+nserver:            ns2.just1888.dn42 172.21.90.193
+nserver:            ns2.just1888.dn42 fd42:beef:1888::2
+org:                ORG-JUST1888
+source:             DN42
diff --git a/data/inet6num/fd42:beef:1888::_48 b/data/inet6num/fd42:beef:1888::_48
new file mode 100644
index 000000000..06034323a
--- /dev/null
+++ b/data/inet6num/fd42:beef:1888::_48
@@ -0,0 +1,11 @@
+inet6num:           fd42:beef:1888:0000:0000:0000:0000:0000 - fd42:beef:1888:ffff:ffff:ffff:ffff:ffff
+cidr:               fd42:beef:1888::/48
+netname:            JUST1888-DN42-NETWORK
+descr:              This network is used for training and experimental purposes of Just Holding Group Co., Ltd.
+country:            CN
+admin-c:            GEORGE-DN42
+tech-c:             GEORGE-DN42
+mnt-by:             WZWTT-MNT
+status:             ASSIGNED
+org:                ORG-JUST1888
+source:             DN42
diff --git a/data/inetnum/172.21.90.192_26 b/data/inetnum/172.21.90.192_26
new file mode 100644
index 000000000..f23a05803
--- /dev/null
+++ b/data/inetnum/172.21.90.192_26
@@ -0,0 +1,13 @@
+inetnum:            172.21.90.192 - 172.21.90.255
+cidr:               172.21.90.192/26
+netname:            JUST1888-DN42-NETWORK
+descr:              This network is used for training and experimental purposes of Just Holding Group Co., Ltd.
+country:            CN
+admin-c:            GEORGE-DN42
+tech-c:             GEORGE-DN42
+mnt-by:             WZWTT-MNT
+status:             ASSIGNED
+nserver:            ns1.just1888.dn42
+nserver:            ns2.just1888.dn42
+org:                ORG-JUST1888
+source:             DN42
diff --git a/data/mntner/WZWTT-MNT b/data/mntner/WZWTT-MNT
new file mode 100644
index 000000000..6a2401d98
--- /dev/null
+++ b/data/mntner/WZWTT-MNT
@@ -0,0 +1,7 @@
+mntner:             WZWTT-MNT
+descr:              WZWTT
+admin-c:            GEORGE-DN42
+tech-c:             GEORGE-DN42
+mnt-by:             WZWTT-MNT
+auth:               pgp-fingerprint D2FC040E58721E741D2FF504AD1AD680FE655022
+source:             DN42
diff --git a/data/organisation/ORG-JUST1888 b/data/organisation/ORG-JUST1888
new file mode 100644
index 000000000..4b83c8e48
--- /dev/null
+++ b/data/organisation/ORG-JUST1888
@@ -0,0 +1,6 @@
+organisation:       ORG-JUST1888
+org-name:           Just Holding Group Co., Ltd.
+admin-c:            GEORGE-DN42
+tech-c:             GEORGE-DN42
+mnt-by:             WZWTT-MNT
+source:             DN42
diff --git a/data/person/GEORGE-DN42 b/data/person/GEORGE-DN42
new file mode 100644
index 000000000..62de8804a
--- /dev/null
+++ b/data/person/GEORGE-DN42
@@ -0,0 +1,5 @@
+person:             George Wang
+e-mail:             george.wang@dn42.wzwtt.eu.org
+nic-hdl:            GEORGE-DN42
+mnt-by:             WZWTT-MNT
+source:             DN42
diff --git a/data/route/172.21.90.192_26 b/data/route/172.21.90.192_26
new file mode 100644
index 000000000..0bfcb3630
--- /dev/null
+++ b/data/route/172.21.90.192_26
@@ -0,0 +1,5 @@
+route:              172.21.90.192/26
+origin:             AS4242421887
+max-length:         26
+mnt-by:             WZWTT-MNT
+source:             DN42
diff --git a/data/route6/fd42:beef:1888::_48 b/data/route6/fd42:beef:1888::_48
new file mode 100644
index 000000000..f6d2e5574
--- /dev/null
+++ b/data/route6/fd42:beef:1888::_48
@@ -0,0 +1,5 @@
+route6:             fd42:beef:1888::/48
+origin:             AS4242421887
+max-length:         48
+mnt-by:             WZWTT-MNT
+source:             DN42