diff --git a/data/aut-num/AS4242421117 b/data/aut-num/AS4242421117
new file mode 100644
index 000000000..225cd176f
--- /dev/null
+++ b/data/aut-num/AS4242421117
@@ -0,0 +1,7 @@
+aut-num:            AS4242421117
+as-name:            YUYUKO-AS
+descr:              Peer with me at dn42@yuyuko.com. Details could be found in https://blog.yuyuko.com.
+admin-c:            YUYUKO-DN42
+tech-c:             YUYUKO-DN42
+mnt-by:             YUYUKO-MNT
+source:             DN42
diff --git a/data/dns/yuyuko.dn42 b/data/dns/yuyuko.dn42
new file mode 100644
index 000000000..2111ee63f
--- /dev/null
+++ b/data/dns/yuyuko.dn42
@@ -0,0 +1,7 @@
+domain:             yuyuko.dn42
+admin-c:            YUYUKO-DN42
+tech-c:             YUYUKO-DN42
+mnt-by:             YUYUKO-MNT
+nserver:            ns1.yuyuko.dn42 172.21.86.1
+nserver:            ns1.yuyuko.dn42 fd55:bf6f:88de::ac15:5601
+source:             DN42
diff --git a/data/inet6num/fd55:bf6f:88de::_48 b/data/inet6num/fd55:bf6f:88de::_48
new file mode 100644
index 000000000..b9f5c9a45
--- /dev/null
+++ b/data/inet6num/fd55:bf6f:88de::_48
@@ -0,0 +1,11 @@
+inet6num:           fd55:bf6f:88de:0000:0000:0000:0000:0000 - fd55:bf6f:88de:ffff:ffff:ffff:ffff:ffff
+netname:            YUYUKO-IPV6
+descr:              Peer with me at dn42@yuyuko.com. Details could be found in https://blog.yuyuko.com.
+country:            CN
+admin-c:            YUYUKO-DN42
+tech-c:             YUYUKO-DN42
+mnt-by:             YUYUKO-MNT
+nserver:            ns1.yuyuko.dn42
+status:             ASSIGNED
+cidr:               fd55:bf6f:88de::/48
+source:             DN42
diff --git a/data/inetnum/172.21.86.0_26 b/data/inetnum/172.21.86.0_26
new file mode 100644
index 000000000..61d555ef4
--- /dev/null
+++ b/data/inetnum/172.21.86.0_26
@@ -0,0 +1,12 @@
+inetnum:            172.21.86.0 - 172.21.86.63
+netname:            YUYUKO-IPV4
+remarks:            Peer with me at dn42@yuyuko.com. Details could be found in https://blog.yuyuko.com.
+descr:              Peer with me at dn42@yuyuko.com. Details could be found in https://blog.yuyuko.com.
+country:            CN
+admin-c:            YUYUKO-DN42
+tech-c:             YUYUKO-DN42
+mnt-by:             YUYUKO-MNT
+nserver:            ns1.yuyuko.dn42
+status:             ASSIGNED
+cidr:               172.21.86.0/26
+source:             DN42
diff --git a/data/mntner/YUYUKO-MNT b/data/mntner/YUYUKO-MNT
new file mode 100644
index 000000000..7a36c4760
--- /dev/null
+++ b/data/mntner/YUYUKO-MNT
@@ -0,0 +1,6 @@
+mntner:             YUYUKO-MNT
+admin-c:            YUYUKO-DN42
+tech-c:             YUYUKO-DN42
+mnt-by:             YUYUKO-MNT
+source:             DN42
+auth:               pgp-fingerprint F4C7F44901E2557C4E918B4A3E132FF5B00BC277
diff --git a/data/person/YUYUKO-DN42 b/data/person/YUYUKO-DN42
new file mode 100644
index 000000000..d08a68fa5
--- /dev/null
+++ b/data/person/YUYUKO-DN42
@@ -0,0 +1,6 @@
+person:             Bing Meng
+e-mail:             dn42@yuyuko.com
+www:                https://blog.yuyuko.com / telegram:https://t.me/+nafWUaqMebZlZWY1
+nic-hdl:            YUYUKO-DN42
+mnt-by:             YUYUKO-MNT
+source:             DN42
diff --git a/data/route/172.21.86.0_26 b/data/route/172.21.86.0_26
new file mode 100644
index 000000000..4b2d5a28f
--- /dev/null
+++ b/data/route/172.21.86.0_26
@@ -0,0 +1,6 @@
+route:              172.21.86.0/26
+descr:              Peer with me at dn42@yuyuko.com. Details could be found in https://blog.yuyuko.com.
+origin:             AS4242421117
+mnt-by:             YUYUKO-MNT
+source:             DN42
+max-length:         26
diff --git a/data/route6/fd55:bf6f:88de::_48 b/data/route6/fd55:bf6f:88de::_48
new file mode 100644
index 000000000..9fabbf8f3
--- /dev/null
+++ b/data/route6/fd55:bf6f:88de::_48
@@ -0,0 +1,6 @@
+route6:             fd55:bf6f:88de::/48
+descr:              Peer with me at dn42@yuyuko.com. Details could be found in https://blog.yuyuko.com.
+origin:             AS4242421117
+mnt-by:             YUYUKO-MNT
+source:             DN42
+max-length:         48
\ No newline at end of file