libphonenumber - Google's common Java, C++ and JavaScript library for parsing, formatting, and validating international phone numbers

Google's common Java, C++ and JavaScript library for parsing, formatting, and validating international phone numbers. The Java version is optimized for running on smartphones, and is used by the Android framework since 4.0 (Ice Cream Sandwich). It provides support for parsing, formatting, and validating phone numbers for all countries/regions of the world.