-
libphonenumber
Google's common Java, C++ and JavaScript library for parsing, formatting, and validating international phone numbers.
-
InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
libphonenumber can format in many ways, you can find the national patterns in the metadata files https://github.com/google/libphonenumber/blob/master/resources/PhoneNumberMetadata.xml
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.