International Phone Codes: Global Calling Guide

How to Make an International Call

1. Start with the IDD prefix of your country (e.g., 00 in most of the world; 011 in the U.S./Canada; 010 in Japan).
2. Add the destination country code (e.g., 212 for Morocco, 44 for the U.K., 91 for India).
3. Dial the national number without the leading 0 (the “trunk” prefix), unless the country’s rules explicitly keep it for international format (rare).

Examples (copy with one click)

From the U.S./Canada to the U.K. mobile (sample local: 07400 123456):

From Morocco to France landline (sample local: 01 23 45 67 89):

From the U.K. to India mobile (sample local: 09876 543210):

IDD Prefixes & Trunk Prefixes (Quick Reference)

IDD (International Direct Dial) prefix tells the network you’re placing an international call. Trunk prefix (often 0) is used for domestic long-distance and is typically removed when you dial internationally.

Formatting Numbers Correctly (E.164 & E.123)

• E.164 is the global numbering format: + + country code + national number (no leading zeros, no spaces). Example: +212612345678.
• E.123 is a presentation style for readability: includes spaces or hyphens, e.g., +212 6 12 34 56 78.
• When saving contacts, prefer the + format; devices/apps interpret it and insert the correct IDD automatically.

About the NANP (+1)

The North American Numbering Plan (NANP) uses the single code +1 across the U.S., Canada, and many Caribbean nations. Inside NANP, you dial with an area code, but for calls from outside the NANP, you still begin with +1 followed by area code and local number.

Special & Service Codes You May See

• +800 — Universal International Freephone Numbers (UIFN). Toll-free internationally (carrier terms apply).
• +808 — Shared-cost services (availability varies).
• +870 — Inmarsat satellite services.
• +881, +882, +883 — Global networks/satellite/VoIP platforms.
• +979 — International premium rate.

Charges and availability depend on your carrier and plan.

Calling Codes of the Countries of the American Continent

Calling Codes of the Countries of the European Continent

Calling Codes of the Countries of the Asian Continent

Calling Codes of the Countries of the African Continent

Calling Codes of the Countries of the Australia/Oceania Region

FAQ

What are international country calling codes?

They’re the numeric prefixes (usually 1–3 digits) assigned by the ITU under E.164 that identify the destination country/territory in a phone number.

How are these codes defined and used?

They’re defined by the ITU. To call abroad, you dial your country’s IDD prefix, then the country code, then the national number (dropping any trunk “0”).

What’s the North American Numbering Plan (NANP)?

NANP uses +1 across the U.S., Canada, and several Caribbean territories. From outside, dial +1 + area code + local number.

How do I dial internationally step by step?

IDD prefix → country code → national number (no trunk “0”). Example from U.S. to Morocco mobile: 011 212 6…

Any tips to save money and improve quality?

• Check your carrier’s international rates or add an international plan.
• Use Wi-Fi calling or reputable VoIP apps when possible.
• Save contacts in + E.164 format.

Why did my call fail?

Common causes: wrong IDD, wrong country code, didn’t remove the national “0”, number is incomplete, or destination blocks certain calls. Try again carefully.