diff --git a/vars/per-machine/rigel/phonebox/server-prefix-number/value b/vars/per-machine/rigel/phonebox/server-prefix-number/value
index d8263ee..2edeafb 100644
--- a/vars/per-machine/rigel/phonebox/server-prefix-number/value
+++ b/vars/per-machine/rigel/phonebox/server-prefix-number/value
@@ -1 +1 @@
-2
\ No newline at end of file
+20
\ No newline at end of file