diff --git a/mastblocksdump/istanzesorelle b/mastblocksdump/istanzesorelle
new file mode 100644
index 0000000..bd30b8d
--- /dev/null
+++ b/mastblocksdump/istanzesorelle
@@ -0,0 +1,5 @@
+mastodon.bida.im
+mastodon.cisti.org
+nebbia.fail
+stereodon.social
+snapj.saja.freemyip.com