Guides

Practical help for keeping your contacts working, wherever you are.

How to add the country code to all contacts at once

Three methods compared: editing by hand, a Google Contacts spreadsheet export, and a one-tap bulk update.

WhatsApp contacts not showing after moving abroad

Why friends from home disappear when you switch WhatsApp to a new country's number, and how to get them back.

Fix contacts after changing your SIM country

Failed calls, missing caller names and dual SIM confusion, all fixed with international format.

What is a trunk code?

Why you drop the 0 after the + country code, with a country-by-country table and the exceptions.