diff --git a/blacklisted_numbers.txt b/blacklisted_numbers.txt
index 1ed41004d0..4034953d35 100644
--- a/blacklisted_numbers.txt
+++ b/blacklisted_numbers.txt
@@ -3841,3 +3841,4 @@
 +507-839-1835
 +57-601489-8152
 57-601-355-7688
+18558384977