World Dialing Codes by BubblyPhone is a Chrome add-on designed to streamline the process of finding international dialing codes, local times, and calling rates for over 155 countries. The extension offers a user-friendly interface that allows users to search by country name, dialing code, or phone prefix, and filter results by region. Additionally, it provides the current local time for any selected country and enables one-click copying of dialing codes for convenience.

The add-on also features a rate checker that allows users to input any international phone number to view the exact per-minute calling rates. Users can calculate the cost for calls of varying lengths, making it a valuable resource for travelers and international callers. Optional features for BubblyPhone users include account balance visibility, recent call logs, and quick-dial capabilities, all while maintaining user privacy by ensuring no data is collected or shared.