diff --git a/data/aut-num/AS4242420817 b/data/aut-num/AS4242420817
new file mode 100644
index 000000000..62e4cd554
--- /dev/null
+++ b/data/aut-num/AS4242420817
@@ -0,0 +1,8 @@
+aut-num:            AS4242420817
+as-name:            Ciel-Net
+descr:              Ciel's Naive AS
+admin-c:            CIEL-DN42
+tech-c:             CIEL-DN42
+remarks:            You may refer to https://dn42.ciel.dev for details.
+mnt-by:             CIEL-MNT
+source:             DN42
diff --git a/data/dns/ciel.dn42 b/data/dns/ciel.dn42
new file mode 100644
index 000000000..562f5ce8b
--- /dev/null
+++ b/data/dns/ciel.dn42
@@ -0,0 +1,9 @@
+domain:             ciel.dn42
+admin-c:            CIEL-DN42
+tech-c:             CIEL-DN42
+nserver:            ns1.ciel.dn42 172.23.3.53
+nserver:            ns1.ciel.dn42 fdef:1926:817::53
+nserver:            ns2.ciel.dn42 172.23.3.54
+nserver:            ns2.ciel.dn42 fdef:1926:817::54
+mnt-by:             CIEL-MNT
+source:             DN42
diff --git a/data/inet6num/fdef:1926:817::_48 b/data/inet6num/fdef:1926:817::_48
new file mode 100644
index 000000000..8048bb8fb
--- /dev/null
+++ b/data/inet6num/fdef:1926:817::_48
@@ -0,0 +1,13 @@
+inet6num:           fdef:1926:0817:0000:0000:0000:0000:0000 - fdef:1926:0817:ffff:ffff:ffff:ffff:ffff
+cidr:               fdef:1926:817::/48
+netname:            CIEL-NETWORK
+descr:              Ciel's Naive Network
+country:            CN
+admin-c:            CIEL-DN42
+tech-c:             CIEL-DN42
+remarks:            You may refer to https://dn42.ciel.dev for details.
+nserver:            ns1.ciel.dn42
+nserver:            ns2.ciel.dn42
+mnt-by:             CIEL-MNT
+status:             ASSIGNED
+source:             DN42
diff --git a/data/inetnum/172.23.3.0_26 b/data/inetnum/172.23.3.0_26
new file mode 100644
index 000000000..a8fb91864
--- /dev/null
+++ b/data/inetnum/172.23.3.0_26
@@ -0,0 +1,13 @@
+inetnum:            172.23.3.0 - 172.23.3.63
+cidr:               172.23.3.0/26
+netname:            CIEL-NETWORK
+descr:              Ciel's Naive Network
+country:            CN
+admin-c:            CIEL-DN42
+tech-c:             CIEL-DN42
+remarks:            You may refer to https://dn42.ciel.dev for details.
+nserver:            ns1.ciel.dn42
+nserver:            ns2.ciel.dn42
+mnt-by:             CIEL-MNT
+status:             ASSIGNED
+source:             DN42
diff --git a/data/mntner/CIEL-MNT b/data/mntner/CIEL-MNT
new file mode 100644
index 000000000..ac235be38
--- /dev/null
+++ b/data/mntner/CIEL-MNT
@@ -0,0 +1,6 @@
+mntner:             CIEL-MNT
+admin-c:            CIEL-DN42
+tech-c:             CIEL-DN42
+auth:               pgp-fingerprint 68014DEC0A224515915BAACCE7C17D043257C532
+mnt-by:             CIEL-MNT
+source:             DN42
diff --git a/data/person/CIEL-DN42 b/data/person/CIEL-DN42
new file mode 100644
index 000000000..a8716ca3b
--- /dev/null
+++ b/data/person/CIEL-DN42
@@ -0,0 +1,8 @@
+person:             Ciel Zhao
+contact:            i@ciel.dev
+contact:            telegram:@TechCiel
+remarks:            You may refer to https://dn42.ciel.dev for details.
+pgp-fingerprint:    68014DEC0A224515915BAACCE7C17D043257C532
+nic-hdl:            CIEL-DN42
+mnt-by:             CIEL-MNT
+source:             DN42
diff --git a/data/route/172.23.3.0_26 b/data/route/172.23.3.0_26
new file mode 100644
index 000000000..618193f0a
--- /dev/null
+++ b/data/route/172.23.3.0_26
@@ -0,0 +1,4 @@
+route:              172.23.3.0/26
+origin:             AS4242420817
+mnt-by:             CIEL-MNT
+source:             DN42
diff --git a/data/route6/fdef:1926:817::_48 b/data/route6/fdef:1926:817::_48
new file mode 100644
index 000000000..e30976e43
--- /dev/null
+++ b/data/route6/fdef:1926:817::_48
@@ -0,0 +1,4 @@
+route6:             fdef:1926:817::/48
+origin:             AS4242420817
+mnt-by:             CIEL-MNT
+source:             DN42