diff --git a/lib/Cake/Utility/Validation.php b/lib/Cake/Utility/Validation.php
index e1c61de5b..96e87f6aa 100644
--- a/lib/Cake/Utility/Validation.php
+++ b/lib/Cake/Utility/Validation.php
@@ -620,7 +620,13 @@ class Validation {
 				case 'all':
 					// includes all NANPA members.
 					// see http://en.wikipedia.org/wiki/North_American_Numbering_Plan#List_of_NANPA_countries_and_territories
-					$regex = '/^(?:(?:\+?1\s*(?:[.-]\s*)?)?(?:\(\s*([2-9]1[02-9]|[2-9][02-8]1|3[02-689][0-9]|9[02-57-9][0-9]|[246-8][02-46-8][02-46-9])\s*\)|(55[0-46-9]|5[0-46-9][5]|[0-46-9]55|[2-9]1[02-9]|[2-9][02-8]1|[2-46-9][02-46-8][02-46-9]))\s*(?:[.-]\s*)?)(?!(555(?:\s*(?:[.|\-|\s]\s*))(01([0-9][0-9])|1212)))(?!(555(01([0-9][0-9])|1212)))([2-9]1[02-9]|[2-9]1[02-9]|[2-9][02-9]1|[2-9][02-9]{2})\s*(?:[.-]\s*)?([0-9]{4})(?:\s*(?:#|x\.?|ext\.?|extension)\s*(\d+))?$/';
+					$regex = '/^(?:(?:\+?1\s*(?:[.-]\s*)?)?(?:\(\s*([2-9]1[02-9]|[2-9][02-8]1|3[02-689][0-9]|9[02-57-9][0-9]|[246-8][02-46-8][02-46-9])\s*\)';
+					$regex .= '|(55[0-46-9]|5[0-46-9][5]|[0-46-9]55|[2-9]1[02-9]|[2-9][02-8]1|[2-46-9][02-46-8][02-46-9]))\s*(?:[.-]\s*)?)';
+					$regex .= '(?!(555(?:\s*(?:[.|\-|\s]\s*))(01([0-9][0-9])|1212)))';
+					$regex .= '(?!(555(01([0-9][0-9])|1212)))';
+					$regex .= '([2-9]1[02-9]|[2-9]1[02-9]|[2-9][02-9]1|[2-9][02-9]{2})\s*(?:[.-]\s*)';
+					$regex .= '?([0-9]{4})';
+					$regex .= '(?:\s*(?:#|x\.?|ext\.?|extension)\s*(\d+))?$/';
 				break;
 			}
 		}