API
E.164 Phone Validation
When inserting phone numbers into Awell, our API requires them to be in the E.164 format.
Validation widget
Enter a phone number below and see whether it is valid according to the E.164 format.
E.164
E.164 is an international telephone numbering plan for the worldwide public switched telephone network (PSTN) and some other data networks. E.164 defines a general format for international telephone numbers that ensures each device on the PSTN has a globally unique number. It makes sure that phone calls and text messages can be correctly routed to individual phones in different countries.
As we have ISO 8601 formatting for date and time-related data, E.164 is a standard format we can use to achieve data interoperability and consistency related to telephone numbers.
Validation
A phone number passed to our API is subjected to the following validation rules:
- It should contain no whitespaces
- It should start with a
+ - It should only contain numbers ranging from 0 to 9
- It should be a possible phone number (<= 15 digits, correct country code)
Please note we are only checking if a number is technically possible (according to the E.164 format), not whether it is an actual valid phone number.
Get Started
There a numerous libraries out there that can help you with validating phone numbers. We listed a few below:
- libphonenumber-js, a library that can help you format and validate phone numbers
- react-international-phone, an international phone input component for React