International Dialing

ISO Country Calling Codes
Lookup country codes and dial internationally from your browser

Place the call from your browser in seconds. Nothing to install, and outbound calls need no phone number.

Product facts

  • Outbound: No dedicated number required.
  • Inbound: Requires US/Canada digital number ($2.14 to $5/month).
  • No apps: Works in Chrome, Safari, Edge, Firefox.
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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 Codes

Common ISO Country Calling Codes

A quick reference for frequently dialed countries. Use the plus sign and the code before the national number.

CountryISOCode
🇺🇸 United StatesUS+1
🇬🇧 United KingdomGB+44
🇮🇳 IndiaIN+91
🇦🇺 AustraliaAU+61
🇨🇦 CanadaCA+1
CountryISOCode
🇩🇪 GermanyDE+49
🇫🇷 FranceFR+33
🇯🇵 JapanJP+81
🇲🇽 MexicoMX+52
🇧🇷 BrazilBR+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

+44 20 7123 4567 becomes +442071234567

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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Sign up to search full country code lists, buy virtual numbers, and start making calls in seconds. No app installs required.

ISO Country Calling Codes Explained, Plus the Easiest Way to Dial Internationally

In short

A country calling code is the numeric prefix you dial before a phone number to reach another country, like +1 for the United States and Canada, +44 for the United Kingdom, and +81 for Japan. These codes are defined by the ITU, while two letter ISO 3166 codes (US, GB, JP) identify each country in directories. With StartACall you can dial any of these codes straight from your browser, pay as you go per minute, and skip the SIM card entirely.

ISO Country Codes vs Calling Codes

People often mix up two different things. ISO 3166 country codes are two letter labels such as US, GB, DE, and BR used in software, addresses, and databases. Calling codes are the numeric dialing prefixes managed by the International Telecommunication Union, like +1, +44, +49, and +55. When you call abroad you dial the numeric calling code, not the ISO letters.

To place an international call you combine three parts. First an exit prefix (00 in much of Europe, 011 in the US and Canada, or simply + on a mobile), then the country calling code, then the local number without its leading zero. For example, +44 20 7946 0000 reaches a London landline.

Common Calling Codes at a Glance

A few of the most dialed codes: +1 covers the United States and Canada, +52 is Mexico, +44 the United Kingdom, +33 France, +49 Germany, +34 Spain, +39 Italy, +91 India, +86 China, +81 Japan, +61 Australia, +55 Brazil, and +234 Nigeria. Codes can be one to three digits, and some, like +1, are shared across an entire region.

Knowing the code is only half the job. Carrier and roaming fees on traditional lines can turn a quick international call into an expensive one, which is why a browser based, per minute option is often cheaper and clearer.

Dial Any Country Code From Your Browser

StartACall lets you dial any country calling code directly in Chrome, Safari, Edge, or Firefox. There is no app to download and no SIM card to swap. Outbound calls do not require you to own a phone number, and you pay as you go, billed per minute, so you only spend on the time you actually talk.

If you also want to receive calls, you can add a US or Canada digital number at $2.14 to $5 per month depending on the number you pick. Every call is end to end encrypted, which makes the service a practical fit for international calling, business use, and privacy minded users.

Frequently asked questions

What is the difference between an ISO country code and a calling code?+

An ISO 3166 country code is a two letter identifier like US, GB, or JP used in software and data. A calling code is the numeric prefix you actually dial, such as +1, +44, or +81. You dial the numeric code to reach a phone, not the ISO letters.

How do I dial an international number using a country code?+

Dial your exit prefix (or just + on a mobile), then the country calling code, then the local number with its leading zero removed. For instance, to reach a Paris number you would dial +33 followed by the 9 digit local number.

Do I need a phone number to call other countries with StartACall?+

No. Outbound calls need no phone number of your own. You dial straight from your browser and pay per minute. A US or Canada digital number, costing about $2.14 to $5 per month, is only needed if you also want to receive inbound calls.

Which browsers and devices work with StartACall?+

StartACall runs in Chrome, Safari, Edge, and Firefox with no app download and no SIM card. That means you can place internationally coded calls from a laptop, desktop, or phone browser anywhere you have an internet connection.

Last reviewed June 2026Reviewed by the StartACall calling teamDialing rules cross checked against ITU international dialing procedures
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