ISO Country Calling Codes
Lookup country codes and dial internationally from your browser
Need the right country code? Find ISO country calling codes, learn the E.164 format, and start calling real phone numbers directly from Chrome, Safari, or Firefox with StartACall. No apps required.
Quick Dialing Guide
Follow these simple steps to place an international call using country codes and E.164 format.
1. Use the Plus Sign
Start international numbers with the plus sign or your device's exit code. The plus tells the network to use the correct international routing.
2. Add the Country Code
Enter the ISO country calling code such as +44 or +91 before the national number. This routes the call to the target country.
3. Follow E.164
Provide the full national number in E.164 format without spaces or punctuation. Example: +441234567890.
Browser Calling Tip
With StartACall, paste the full E.164 number into the browser dialer and press call. The platform connects through the web to the PSTN so you can reach any phone number you have permission to call.
Common ISO Country Calling Codes
A quick reference for frequently dialed countries. Use the plus sign and the code before the national number.
| Country | ISO | Code |
|---|---|---|
| 🇺🇸 United States | US | +1 |
| 🇬🇧 United Kingdom | GB | +44 |
| 🇮🇳 India | IN | +91 |
| 🇦🇺 Australia | AU | +61 |
| 🇨🇦 Canada | CA | +1 |
| Country | ISO | Code |
|---|---|---|
| 🇩🇪 Germany | DE | +49 |
| 🇫🇷 France | FR | +33 |
| 🇯🇵 Japan | JP | +81 |
| 🇲🇽 Mexico | MX | +52 |
| 🇧🇷 Brazil | BR | +55 |
Not seeing your country? StartACall supports numbers and virtual numbers in 190+ countries. Create an account to search the full list and buy virtual numbers.
Understanding E.164
E.164 is the international phone number format used across the global phone network. Using E.164 ensures consistent routing for international calls.
E.164 Rules
- Start with the country calling code and no leading zeros.
- Maximum of 15 digits in total excluding the plus sign.
- No spaces, parentheses, or dashes when storing numbers for dialing.
Example
When calling from StartACall paste the E.164 number into the dialer and press call. The platform handles the rest.
Frequently Asked Questions
What is an ISO country calling code?
It is the dialing prefix assigned to a country, shown with a leading plus sign, like +1, +44, or +91.
How do I format a phone number for international dialing?
Use E.164: plus sign, country code, then national number with no spaces or punctuation. Example +4915112345678.
Can I use StartACall to dial any E.164 number?
Yes. StartACall bridges the web to the PSTN so you can dial E.164 numbers directly from your browser and reach mobile or landline phones in supported countries.
How do I get a virtual number for a country?
Sign up for an account, search available virtual numbers for the country you need, and assign it to your account for inbound and outbound use.
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