diff --git a/homeassistant/components/notify/twilio_sms.py b/homeassistant/components/notify/twilio_sms.py
index 52cfe2f436d..e106c5ae6aa 100644
--- a/homeassistant/components/notify/twilio_sms.py
+++ b/homeassistant/components/notify/twilio_sms.py
@@ -21,7 +21,10 @@ CONF_FROM_NUMBER = "from_number"
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_FROM_NUMBER):
-        vol.All(cv.string, vol.Match(r"^\+?[1-9]\d{1,14}$")),
+        vol.All(cv.string,
+                vol.Match(r"^\+?[1-9]\d{1,14}$|"
+                          r"^(?=.{1,11}$)[a-zA-Z0-9\s]*"
+                          r"[a-zA-Z][a-zA-Z0-9\s]*$")),
 })