International Dialing Codes
Free online international telephone area code lookup for all countries and regions.
Tool Guide
Introduction to the Online International Dialing Code Tool
The Online International Dialing Code Directory is a practical tool for quickly looking up international dialing codes for countries and regions worldwide.
It covers the dialing codes of countries (regions) across all continents. The data is based on the International Telecommunication Union (ITU) E.164 numbering standard and is suitable for international calls, overseas communication, cross-border business, customer contact, and many other scenarios.
Why Knowing International Dialing Codes Matters
Fraud prevention: Identify unfamiliar international calls to avoid being scammed or answering by mistake.
Improved efficiency: Save time and reduce communication interruptions caused by dialing errors.
Work essential: Commonly used by professionals in foreign trade, cross-border business, international trade, education, and overseas operations.
Use Cases for International Dialing Codes
Preparing to Study Abroad / Travel
Before traveling to another country, learn the local dialing code so you can set up your contacts in advance and reach airport pickups, hotels, schools, and other relevant parties.
Using International Logistics / E-commerce Platforms
Platforms such as AliExpress, Amazon, eBay, and Shein require an international mobile number with a dialing code when registering or adding an address.
Registering for Overseas Services or App Accounts
Registering for services such as Facebook, WhatsApp, Telegram, ChatGPT, and Google Voice requires entering an international phone number in the correct format.
Corporate International Customer Contact / After-sales Service
Sales, technical support, and customer service outbound calls all require correctly identifying a customer's number dialing code to improve communication efficiency and customer experience.
Frequently Asked Questions About International Dialing Codes (FAQ)
What is an international dialing code?
A Country Calling Code is a calling prefix assigned by the International Telecommunication Union to countries and regions worldwide according to the E.164 numbering standard.
What is the difference between an IDD prefix and a dialing code?
An IDD (International Direct Dialing) prefix is the prefix used to dial international calls from your country—for example, "00" in China—while an international dialing code such as "1" represents the United States, Canada, and so on.
Does it support looking up a country from a dialing code?
We recommend using the browser's search function (Ctrl+F) to assist with reverse lookup.
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