diff --git a/data/inetnum/172.20.72.0_21 b/data/inetnum/172.20.72.0_21
index 720948bc4..66633e674 100644
--- a/data/inetnum/172.20.72.0_21
+++ b/data/inetnum/172.20.72.0_21
@@ -4,6 +4,7 @@ descr:              zentralwerk network
 policy:             reserved
 remarks:            Contact eri for allocation information.
 org:                ORG-ZENTRALWERK
+mnt-by:             ERI-MNT
 status:             ALLOCATED
 cidr:               172.20.72.0/21
 source:             DN42
diff --git a/data/mntner/ERI-MNT b/data/mntner/ERI-MNT
new file mode 100644
index 000000000..20a7f4b86
--- /dev/null
+++ b/data/mntner/ERI-MNT
@@ -0,0 +1,8 @@
+mntner:             ERI-MNT
+descr:              eri! maintains
+sha512-pw:          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
+admin-c:            ERI-DN42
+tech-c:             ERI-DN42
+mnt-by:             ERI-MNT
+remarks:            pin-sha256:BUh7Ar7P8oRlfxyruzocpfdKV32RhgtUkrgMfDztTxM=
+source:             DN42
diff --git a/data/organisation/ORG-C3D2 b/data/organisation/ORG-C3D2
index 6ebe4a1d4..d6dff8b2e 100644
--- a/data/organisation/ORG-C3D2
+++ b/data/organisation/ORG-C3D2
@@ -2,8 +2,8 @@ organisation:       ORG-C3D2
 org-name:           c3d2
 descr:              <<</>> - Chaos Computer Club Dresden
 admin-c:            ASTRO-DN42
-tech-c:             ASTRO-DN42
-mnt-by:             DUMMY-MNT
+tech-c:             ERI-DN42
+mnt-by:             ERI-MNT
 phone:              +4935148484999
 remarks:            bitcoin:           1GCHQcmWcyCa3tJnoeZCy5ePpkQK7xnJ1R
 e-mail:             mail@c3d2.de
diff --git a/data/person/ERI-DN42 b/data/person/ERI-DN42
new file mode 100644
index 000000000..0d4a0f401
--- /dev/null
+++ b/data/person/ERI-DN42
@@ -0,0 +1,7 @@
+person:             eri!
+contact:            mailto:eri@chelnok.de
+pgp-fingerprint:    844267BA729E32B3329B9DBF59E238FC65F349F2
+contact:            xmpp:eri@jabber.chelnok.de
+nic-hdl:            ERI-DN42
+mnt-by:             ERI-MNT
+source:             DN42