diff --git a/data/aut-num/AS4242421989 b/data/aut-num/AS4242421989
new file mode 100644
index 000000000..04d492a46
--- /dev/null
+++ b/data/aut-num/AS4242421989
@@ -0,0 +1,6 @@
+aut-num:            AS4242421989
+as-name:            AS-HSHUANG-DN42
+admin-c:            HSHUANG-DN42
+tech-c:             HSHUANG-DN42
+mnt-by:             HSHUANG-MNT
+source:             DN42
diff --git a/data/inet6num/fdb1:28b0:aae4::_48 b/data/inet6num/fdb1:28b0:aae4::_48
new file mode 100644
index 000000000..b208a8f2d
--- /dev/null
+++ b/data/inet6num/fdb1:28b0:aae4::_48
@@ -0,0 +1,9 @@
+inet6num:           fdb1:28b0:aae4:0000:0000:0000:0000:0000 - fdb1:28b0:aae4:ffff:ffff:ffff:ffff:ffff
+netname:            HSHUANG-IPV6
+country:            JP
+admin-c:            HSHUANG-DN42
+tech-c:             HSHUANG-DN42
+mnt-by:             HSHUANG-MNT
+status:             ASSIGNED
+cidr:               fdb1:28b0:aae4::/48
+source:             DN42
diff --git a/data/inetnum/172.20.133.128_27 b/data/inetnum/172.20.133.128_27
new file mode 100644
index 000000000..fbbd5f5a3
--- /dev/null
+++ b/data/inetnum/172.20.133.128_27
@@ -0,0 +1,9 @@
+inetnum:            172.20.133.128 - 172.20.133.159
+netname:            HSHUANG-IPV4
+country:            JP
+admin-c:            HSHUANG-DN42
+tech-c:             HSHUANG-DN42
+mnt-by:             HSHUANG-MNT
+status:             ASSIGNED
+cidr:               172.20.133.128/27
+source:             DN42
diff --git a/data/mntner/HSHUANG-MNT b/data/mntner/HSHUANG-MNT
new file mode 100644
index 000000000..80927a8b1
--- /dev/null
+++ b/data/mntner/HSHUANG-MNT
@@ -0,0 +1,6 @@
+mntner:             HSHUANG-MNT
+admin-c:            HSHUANG-DN42
+tech-c:             HSHUANG-DN42
+mnt-by:             HSHUANG-MNT
+source:             DN42
+auth:               ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBt85ft/9mCdDnfFyE01Jmni0CwztVGzZG9hFVN2jCOr
diff --git a/data/person/HSHUANG-DN42 b/data/person/HSHUANG-DN42
new file mode 100644
index 000000000..08362de60
--- /dev/null
+++ b/data/person/HSHUANG-DN42
@@ -0,0 +1,5 @@
+person:             hshuang
+e-mail:             nakamura0hshuang@gmail.com
+nic-hdl:            HSHUANG-DN42
+mnt-by:             HSHUANG-MNT
+source:             DN42
diff --git a/data/route/172.20.133.128_27 b/data/route/172.20.133.128_27
new file mode 100644
index 000000000..63cdb8750
--- /dev/null
+++ b/data/route/172.20.133.128_27
@@ -0,0 +1,4 @@
+route:              172.20.133.128/27
+origin:             AS4242421989
+mnt-by:             HSHUANG-MNT
+source:             DN42
diff --git a/data/route6/fdb1:28b0:aae4::_48 b/data/route6/fdb1:28b0:aae4::_48
new file mode 100644
index 000000000..be8db0f5d
--- /dev/null
+++ b/data/route6/fdb1:28b0:aae4::_48
@@ -0,0 +1,4 @@
+route6:             fdb1:28b0:aae4::/48
+origin:             AS4242421989
+mnt-by:             HSHUANG-MNT
+source:             DN42