diff --git a/data/aut-num/AS4242420921 b/data/aut-num/AS4242420921
new file mode 100644
index 000000000..d2bc6fce1
--- /dev/null
+++ b/data/aut-num/AS4242420921
@@ -0,0 +1,6 @@
+aut-num:            AS4242420921
+as-name:            AS-KZHAO921-DN42
+admin-c:            KZHAO921-DN42
+tech-c:             KZHAO921-DN42
+mnt-by:             KZHAO921-MNT
+source:             DN42
diff --git a/data/inetnum/172.20.31.96_27 b/data/inetnum/172.20.31.96_27
new file mode 100644
index 000000000..02f1a0221
--- /dev/null
+++ b/data/inetnum/172.20.31.96_27
@@ -0,0 +1,8 @@
+inetnum:            172.20.31.96 - 172.20.31.127
+cidr:               172.20.31.96/27
+netname:            KZHAO921-NETWORK
+admin-c:            KZHAO921-DN42
+tech-c:             KZHAO921-DN42
+mnt-by:             KZHAO921-MNT
+status:             ASSIGNED
+source:             DN42
diff --git a/data/mntner/KZHAO921-MNT b/data/mntner/KZHAO921-MNT
new file mode 100644
index 000000000..61865c28c
--- /dev/null
+++ b/data/mntner/KZHAO921-MNT
@@ -0,0 +1,6 @@
+mntner:             KZHAO921-MNT
+admin-c:            KZHAO921-DN42
+tech-c:             KZHAO921-DN42
+mnt-by:             KZHAO921-MNT
+auth:               ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINJdGRtR29f07T9nePezpGpUdE3ebtSF210yEXN45hbZ
+source:             DN42
diff --git a/data/person/KZHAO921-DN42 b/data/person/KZHAO921-DN42
new file mode 100644
index 000000000..f513c4b4e
--- /dev/null
+++ b/data/person/KZHAO921-DN42
@@ -0,0 +1,5 @@
+person:             kzhao921
+e-mail:             kzhao921@gmail.com
+nic-hdl:            KZHAO921-DN42
+mnt-by:             KZHAO921-MNT
+source:             DN42
diff --git a/data/route/172.20.31.96_27 b/data/route/172.20.31.96_27
new file mode 100644
index 000000000..78d1d9837
--- /dev/null
+++ b/data/route/172.20.31.96_27
@@ -0,0 +1,4 @@
+route:              172.20.31.96/27
+origin:             AS4242420921
+mnt-by:             KZHAO921-MNT
+source:             DN42