diff --git a/data/aut-num/AS4242420129 b/data/aut-num/AS4242420129
index 6a1a16996..45ed11f68 100644
--- a/data/aut-num/AS4242420129
+++ b/data/aut-num/AS4242420129
@@ -6,4 +6,3 @@ admin-c:            MINECON724-DN42
 tech-c:             MINECON724-DN42
 source:             DN42
 remarks:            https://dn42.m724.eu
-remarks:            Website or person/MINECON724-DN42 for other contact ways
diff --git a/data/aut-num/AS4242421161 b/data/aut-num/AS4242421161
deleted file mode 100644
index dcd34d6ea..000000000
--- a/data/aut-num/AS4242421161
+++ /dev/null
@@ -1,6 +0,0 @@
-aut-num:            AS4242421161
-as-name:            Minecon724
-mnt-by:             MINECON724-MNT
-admin-c:            MINECON724-DN42
-tech-c:             MINECON724-DN42
-source:             DN42
diff --git a/data/dns/m724.dn42 b/data/dns/m724.dn42
index badd7e4ca..c8513b773 100644
--- a/data/dns/m724.dn42
+++ b/data/dns/m724.dn42
@@ -2,5 +2,5 @@ domain:             m724.dn42
 admin-c:            MINECON724-DN42
 tech-c:             MINECON724-DN42
 mnt-by:             MINECON724-MNT
-nserver:            ns1.m724.dn42 fdfe:8d0:7450:aaaa::
+nserver:            ns1.m724.dn42 fdfe:8d0:7450:ffff::
 source:             DN42
diff --git a/data/inet6num/fd11:ef8b:72ac::_48 b/data/inet6num/fd11:ef8b:72ac::_48
deleted file mode 100644
index 2cad3dd5b..000000000
--- a/data/inet6num/fd11:ef8b:72ac::_48
+++ /dev/null
@@ -1,8 +0,0 @@
-inet6num:           fd11:ef8b:72ac:0000:0000:0000:0000:0000 - fd11:ef8b:72ac:ffff:ffff:ffff:ffff:ffff
-cidr:               fd11:ef8b:72ac::/48
-netname:            Minecon724
-admin-c:            MINECON724-DN42
-tech-c:             MINECON724-DN42
-mnt-by:             MINECON724-MNT
-status:             ASSIGNED
-source:             DN42
diff --git a/data/route6/fd11:ef8b:72ac::_48 b/data/route6/fd11:ef8b:72ac::_48
deleted file mode 100644
index eb43cd480..000000000
--- a/data/route6/fd11:ef8b:72ac::_48
+++ /dev/null
@@ -1,5 +0,0 @@
-route6:             fd11:ef8b:72ac::/48
-origin:             AS4242421161
-max-length:         48
-mnt-by:             MINECON724-MNT
-source:             DN42
diff --git a/data/route6/fdfe:8d0:7450::_48 b/data/route6/fdfe:8d0:7450::_48
index fbc3e7b4e..8e89c84b2 100644
--- a/data/route6/fdfe:8d0:7450::_48
+++ b/data/route6/fdfe:8d0:7450::_48
@@ -1,5 +1,5 @@
 route6:             fdfe:8d0:7450::/48
 origin:             AS4242420129
-max-length:         48
+max-length:         52
 mnt-by:             MINECON724-MNT
 source:             DN42