diff --git a/data/aut-num/AS4242423205 b/data/aut-num/AS4242423205
new file mode 100644
index 000000000..eba5c98c2
--- /dev/null
+++ b/data/aut-num/AS4242423205
@@ -0,0 +1,6 @@
+aut-num:            AS4242423205
+as-name:            AS-MIKAN-DN42
+admin-c:            MIKAN-DN42
+tech-c:             MIKAN-DN42
+mnt-by:             MIKAN-MNT
+source:             DN42
diff --git a/data/dns/mikan.dn42 b/data/dns/mikan.dn42
new file mode 100644
index 000000000..3aa1eb028
--- /dev/null
+++ b/data/dns/mikan.dn42
@@ -0,0 +1,8 @@
+domain:             mikan.dn42
+admin-c:            MIKAN-DN42
+tech-c:             MIKAN-DN42
+mnt-by:             MIKAN-MNT
+nserver:            ns1.mikan.dn42 172.22.157.121
+nserver:            ns1.mikan.dn42 fd15:52e9:6947:e100::1
+ds-rdata:           64983 14 4 58d349c380810c458452a11765574542615a68012b88c52d517fc34b91a3092391b1b0b9275c1a7f102f4f325b1868b1
+source:             DN42
diff --git a/data/inet6num/fd15:52e9:6947::_48 b/data/inet6num/fd15:52e9:6947::_48
new file mode 100644
index 000000000..187c70e6a
--- /dev/null
+++ b/data/inet6num/fd15:52e9:6947::_48
@@ -0,0 +1,11 @@
+inet6num:           fd15:52e9:6947:0000:0000:0000:0000:0000 - fd15:52e9:6947:ffff:ffff:ffff:ffff:ffff
+cidr:               fd15:52e9:6947::/48
+netname:            MIKAN-NETWORK
+nserver:            ns1.mikan.dn42
+descr:              Mikan Network
+country:            JP
+admin-c:            MIKAN-DN42
+tech-c:             MIKAN-DN42
+mnt-by:             MIKAN-MNT
+status:             ASSIGNED
+source:             DN42
diff --git a/data/inetnum/172.22.157.96_27 b/data/inetnum/172.22.157.96_27
new file mode 100644
index 000000000..b8384e3f8
--- /dev/null
+++ b/data/inetnum/172.22.157.96_27
@@ -0,0 +1,11 @@
+inetnum:            172.22.157.96 - 172.22.157.127
+cidr:               172.22.157.96/27
+netname:            MIKAN-NETWORK
+nserver:            ns1.mikan.dn42
+descr:              Mikan Network
+country:            JP
+admin-c:            MIKAN-DN42
+tech-c:             MIKAN-DN42
+mnt-by:             MIKAN-MNT
+status:             ASSIGNED
+source:             DN42
diff --git a/data/mntner/MIKAN-MNT b/data/mntner/MIKAN-MNT
new file mode 100644
index 000000000..c37e17bf9
--- /dev/null
+++ b/data/mntner/MIKAN-MNT
@@ -0,0 +1,6 @@
+mntner:             MIKAN-MNT
+admin-c:            MIKAN-DN42
+tech-c:             MIKAN-DN42
+mnt-by:             MIKAN-MNT
+auth:               ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINCmlYdLrwLo2aSj+iG+d6oJf2drq69i6DIcdQfSvmiF
+source:             DN42
diff --git a/data/person/MIKAN-DN42 b/data/person/MIKAN-DN42
new file mode 100644
index 000000000..7d7148aa8
--- /dev/null
+++ b/data/person/MIKAN-DN42
@@ -0,0 +1,5 @@
+person:             Mikan
+e-mail:             momoka_16@outlook.com
+nic-hdl:            MIKAN-DN42
+mnt-by:             MIKAN-MNT
+source:             DN42
diff --git a/data/route/172.22.157.96_27 b/data/route/172.22.157.96_27
new file mode 100644
index 000000000..21c04ba7d
--- /dev/null
+++ b/data/route/172.22.157.96_27
@@ -0,0 +1,5 @@
+route:              172.22.157.96/27
+origin:             AS4242423205
+max-length:         27
+mnt-by:             MIKAN-MNT
+source:             DN42
diff --git a/data/route6/fd15:52e9:6947::_48 b/data/route6/fd15:52e9:6947::_48
new file mode 100644
index 000000000..775741d4d
--- /dev/null
+++ b/data/route6/fd15:52e9:6947::_48
@@ -0,0 +1,5 @@
+route6:             fd15:52e9:6947::/48
+origin:             AS4242423205
+max-length:         48
+mnt-by:             MIKAN-MNT
+source:             DN42