diff --git a/data/aut-num/AS4242421005 b/data/aut-num/AS4242421005
new file mode 100644
index 000000000..dd322d187
--- /dev/null
+++ b/data/aut-num/AS4242421005
@@ -0,0 +1,6 @@
+aut-num:            AS4242421005
+as-name:            YZYMC-AS
+admin-c:            YZYMC-DN42
+tech-c:             YZYMC-DN42
+mnt-by:             YZYMC-MNT
+source:             DN42
diff --git a/data/inet6num/fd7b:67:200c::_48 b/data/inet6num/fd7b:67:200c::_48
new file mode 100644
index 000000000..7486702de
--- /dev/null
+++ b/data/inet6num/fd7b:67:200c::_48
@@ -0,0 +1,9 @@
+inet6num:           fd7b:0067:200c:0000:0000:0000:0000:0000 - fd7b:0067:200c:ffff:ffff:ffff:ffff:ffff
+cidr:               fd7b:67:200c::/48
+netname:            YZYMC-IPV6
+country:            CN
+admin-c:            YZYMC-DN42
+tech-c:             YZYMC-DN42
+mnt-by:             YZYMC-MNT
+status:             ASSIGNED
+source:             DN42
diff --git a/data/inetnum/172.20.12.160_27 b/data/inetnum/172.20.12.160_27
new file mode 100644
index 000000000..103ca2f60
--- /dev/null
+++ b/data/inetnum/172.20.12.160_27
@@ -0,0 +1,9 @@
+inetnum:            172.20.12.160 - 172.20.12.191
+cidr:               172.20.12.160/27
+netname:            YZYMC-IPV4
+country:            CN
+admin-c:            YZYMC-DN42
+tech-c:             YZYMC-DN42
+mnt-by:             YZYMC-MNT
+status:             ASSIGNED
+source:             DN42
diff --git a/data/mntner/YZYMC-MNT b/data/mntner/YZYMC-MNT
new file mode 100644
index 000000000..0d036826e
--- /dev/null
+++ b/data/mntner/YZYMC-MNT
@@ -0,0 +1,6 @@
+mntner:             YZYMC-MNT
+admin-c:            YZYMC-DN42
+tech-c:             YZYMC-DN42
+auth:               pgp-fingerprint 130858E962A23EB303D4A9812C99D7322235DC03
+mnt-by:             YZYMC-MNT
+source:             DN42
diff --git a/data/person/YZYMC-DN42 b/data/person/YZYMC-DN42
new file mode 100644
index 000000000..6746b4342
--- /dev/null
+++ b/data/person/YZYMC-DN42
@@ -0,0 +1,5 @@
+person:             ZiYuan Yang
+e-mail:             yzymc@yzynetwork.org
+nic-hdl:            YZYMC-DN42
+mnt-by:             YZYMC-MNT
+source:             DN42
diff --git a/data/route/172.20.12.160_27 b/data/route/172.20.12.160_27
new file mode 100644
index 000000000..c90f4f03c
--- /dev/null
+++ b/data/route/172.20.12.160_27
@@ -0,0 +1,4 @@
+route:              172.20.12.160/27
+origin:             AS4242421005
+mnt-by:             YZYMC-MNT
+source:             DN42
diff --git a/data/route6/fd7b:67:200c::_48 b/data/route6/fd7b:67:200c::_48
new file mode 100644
index 000000000..7c29ea472
--- /dev/null
+++ b/data/route6/fd7b:67:200c::_48
@@ -0,0 +1,4 @@
+route6:             fd7b:67:200c::/48
+origin:             AS4242421005
+mnt-by:             YZYMC-MNT
+source:             DN42