diff --git a/data/penn/aut-num/4242423310.yaml b/data/penn/aut-num/4242423310.yaml
new file mode 100644
index 000000000..e76e4b3c5
--- /dev/null
+++ b/data/penn/aut-num/4242423310.yaml
@@ -0,0 +1,8 @@
+aut-num:
+  as: 4242423310
+  descr: "Penn Yeung's DN42 ASN"
+  admin-c:
+    - PENN1-DN42
+  tech-c:
+    - PENN1-DN42
+  source: DN42
\ No newline at end of file
diff --git a/data/penn/inet6num/fd42:4242:3310::-48.yaml b/data/penn/inet6num/fd42:4242:3310::-48.yaml
new file mode 100644
index 000000000..999cfb115
--- /dev/null
+++ b/data/penn/inet6num/fd42:4242:3310::-48.yaml
@@ -0,0 +1,11 @@
+inet6num:
+  netname: PENN-NET6
+  descr: "Penn Yeung's DN42 IPv6 allocation"
+  country: HK
+  admin-c:
+    - PENN1-DN42
+  tech-c:
+    - PENN1-DN42
+  inet6num: fd42:4242:3310:: - fd42:4242:3310:ffff:ffff:ffff:ffff:ffff
+  netblock: fd42:4242:3310::/48
+  source: DN42
\ No newline at end of file
diff --git a/data/penn/inetnum/10.101.231.0-24.yaml b/data/penn/inetnum/10.101.231.0-24.yaml
new file mode 100644
index 000000000..bf33ec3e2
--- /dev/null
+++ b/data/penn/inetnum/10.101.231.0-24.yaml
@@ -0,0 +1,11 @@
+inetnum:
+  netname: PENN-NET
+  descr: "Penn Yeung's DN42 IPv4 allocation"
+  country: UK
+  admin-c:
+    - PENN1-DN42
+  tech-c:
+    - PENN1-DN42
+  inetnum: 10.101.231.0 - 10.101.231.255
+  netblock: 10.101.231.0/24
+  source: DN42
\ No newline at end of file
diff --git a/data/penn/person/pennyeung.yaml b/data/penn/person/pennyeung.yaml
new file mode 100644
index 000000000..114826ce7
--- /dev/null
+++ b/data/penn/person/pennyeung.yaml
@@ -0,0 +1,6 @@
+person:
+  name: Penn Yeung
+  nic_hdl: PENN1-DN42
+  mail: penn.yeung@gmail.com
+  remark: "New DN42 member"
+  source: DN42
\ No newline at end of file