Understanding the International Dialing Plan
Posted: Sun May 25, 2025 9:02 am
The core of the global system is the International Telecommunication Union (ITU) E.164 recommendation, which defines the international public telecommunication numbering plan. This plan dictates that each country (or geographic area) is assigned a unique country calling code. A full international telephone number should not exceed 15 digits. When dialing internationally, you typically precede the country code with an international access code (e.g., "+" or "00"). This structured approach allows networks worldwide to correctly route calls and messages to their intended recipients.
Key Components: Country Codes and National Numbering Plans
Every country has its own unique country calling code, ranging from one to three uruguay phone number list digits. For example, the United States and Canada use "+1", Bangladesh uses "+880", and the United Kingdom uses "+44". Following the country code, each nation has a National Numbering Plan (NNP), which dictates the structure of domestic phone numbers. This includes area codes (for fixed lines or specific mobile ranges) and subscriber numbers. For mobile numbers, the NNP often includes a specific prefix (e.g., "017" for Grameenphone in Bangladesh, "07" for mobile numbers in the UK) followed by the subscriber's unique number.
Learn About VoLTE, VoWiFi and New Communication Technologies in One Article
The landscape of mobile communication is continuously evolving, with technologies like Voice over LTE (VoLTE) and Voice over WiFi (VoWiFi) becoming standard. These innovations are reshaping how we make calls, offering superior quality and flexibility.
Examples and Important Considerations
Here's a brief illustrative list of country codes:
United States/Canada: +1
United Kingdom: +44
Bangladesh: +880
India: +91
Australia: +61
Germany: +49
When managing or using mobile phone numbers for international communication (especially for marketing), it's crucial to store numbers in the full international format (e.g., +88017xxxxxxxxx). This ensures compatibility across different carriers and avoids delivery issues. Always verify country codes and national number formats to maintain data accuracy and ensure your communications reach the correct destination globally.
Key Components: Country Codes and National Numbering Plans
Every country has its own unique country calling code, ranging from one to three uruguay phone number list digits. For example, the United States and Canada use "+1", Bangladesh uses "+880", and the United Kingdom uses "+44". Following the country code, each nation has a National Numbering Plan (NNP), which dictates the structure of domestic phone numbers. This includes area codes (for fixed lines or specific mobile ranges) and subscriber numbers. For mobile numbers, the NNP often includes a specific prefix (e.g., "017" for Grameenphone in Bangladesh, "07" for mobile numbers in the UK) followed by the subscriber's unique number.
Learn About VoLTE, VoWiFi and New Communication Technologies in One Article
The landscape of mobile communication is continuously evolving, with technologies like Voice over LTE (VoLTE) and Voice over WiFi (VoWiFi) becoming standard. These innovations are reshaping how we make calls, offering superior quality and flexibility.
Examples and Important Considerations
Here's a brief illustrative list of country codes:
United States/Canada: +1
United Kingdom: +44
Bangladesh: +880
India: +91
Australia: +61
Germany: +49
When managing or using mobile phone numbers for international communication (especially for marketing), it's crucial to store numbers in the full international format (e.g., +88017xxxxxxxxx). This ensures compatibility across different carriers and avoids delivery issues. Always verify country codes and national number formats to maintain data accuracy and ensure your communications reach the correct destination globally.