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External Data Source

Source

Regular Expression
(4\d{12})|(((4|3)\d{3})|(5[1-5]\d{2})|(6011))(-?|\040?)(\d{4}(-?|\040?)){3}|((3[4,7]\d{2})((-?|\040?)\d{6}(-?|\040?)\d{5}))|(3[4,7]\d{2})((-?|\040?)\d{4}(-?|\040?)\d{4}(-?|\040?)\d{3})|(3[4,7]\d{1})(-?|\040?)(\d{4}(-?|\040?)){3}|(30[0-5]\d{1}|(36|38)\d(2))((-?|\040?)\d{4}(-?|\040?)\d{4}(-?|\040?)\d{2})|((2131|1800)|(2014|2149))((-?|\040?)\d{4}(-?|\040?)\d{4}(-?|\040?)\d{3})