How should mobile phone numbers be written to ensure delivery of text messages?

Magnus Bratt

To ensure delivery of text messages, write the mobile phone number using E.164 phone number formatting.

For phone numbers not written in that way, we will try our best to interpret the number. If you have phone numbers in a format that does not match the E.164 standard and is not delivered, let us know and we will look into if we can improve the heuristics for interpreting the phone numbers.

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