Country Calling Codes
& Phone Codes

A phone calling code, also known as an international dialing code, is the number you enter before a phone number when calling another country.

For example:

• United States: +1
• United Kingdom: +44
• Bangladesh: +880
• India: +91
• Australia: +61

When making an international call, you usually enter the plus sign (+) followed by the country code and the local phone number.

ISO country codes are internationally recognized country identifiers created by the International Organization for Standardization.

The most common ISO formats include:

• ISO Alpha-2 (Two-letter code)
  • US = United States
  • GB = United Kingdom
  • BD = Bangladesh
• ISO Alpha-3 (Three-letter code)
  • USA = United States
  • GBR = United Kingdom
  • BGD = Bangladesh

These codes are widely used in websites, APIs, software applications, shipping systems, and international databases.

Country codes play an important role in global communication and data management. They help:

• Make international phone calls correctly
• Identify countries in online forms
• Support international shipping and logistics
• Improve data accuracy in software systems
• Enable secure user verification
• Standardize country information worldwide

Without country codes, managing international communication and records would be much more difficult.

This directory helps you quickly find:

• International phone codes
• Calling codes
• Dialing codes
• Telephone codes
• ISO Alpha-2 country codes
• ISO Alpha-3 country codes

Simply search for a country name to view its available country code information.

A calling code is used for international phone calls, while a country code can refer to phone codes, ISO codes, or other country identifiers used in different systems.

Yes. The terms dialing code, calling code, telephone code, and phone code are often used interchangeably when referring to international phone prefixes.

International calling codes are assigned according to global telecommunications standards. Some regions may share related numbering systems, but each country has its own unique identifier.

Although uncommon, ISO codes may be updated when countries change names, territories are modified, or international standards are revised.

Use our International Country Codes Directory to find accurate phone codes, dialing codes, calling codes, telephone codes, and ISO country codes for countries around the world. The directory is designed to provide fast, simple, and reliable country code information whenever you need it.