Phone Number Formatter
Convert any phone number to E.164, international, national, and 3 more formats instantly. Supports 200+ countries.
How It Works
Select Country
Choose the country for the phone number to apply the correct formatting rules and country code.
Enter Number
Paste or type the phone number in any format β spaces, dashes, parentheses, dots, or raw digits all work.
Copy Any Format
Get the number in 6 different formats instantly. Click copy on whichever format you need.
Phone Number Format Reference
| Format | Example (US) | Use Case |
|---|---|---|
| E.164 | +14155551234 | APIs, databases, SMS platforms, VoIP systems |
| International | +1 415-555-1234 | Human-readable international dialing |
| National | (415) 555-1234 | Local display, business cards, domestic use |
| RFC 3966 | tel:+1-415-555-1234 | HTML links, click-to-call on websites |
| Dots | 415.555.1234 | US business style, some CRM systems |
| Compact | 4155551234 | Data storage, spreadsheets, internal systems |
Frequently Asked Questions
What is E.164 format?
E.164 is the international phone number format defined by the ITU. It starts with a + sign, followed by the country code and subscriber number, with no spaces or separators. For example, a US number in E.164 format looks like +14155551234. This format is required by most APIs, databases, and VoIP systems.
Why do phone number formats matter?
Different systems and countries use different phone number formats. Using the wrong format can cause failed calls, undelivered SMS messages, or database errors. E.164 is the universal standard that works across all telecom systems worldwide.
How do I format an international phone number?
Select the country from the dropdown, paste or type the phone number in any format, and the tool instantly shows it in 6 different formats. The international format includes the + sign, country code, and formatted number with spaces or dashes.
What is RFC 3966 tel: URI format?
RFC 3966 defines the tel: URI scheme used in HTML and web applications. It formats phone numbers as tel:+1-415-555-1234, which makes phone numbers clickable on mobile devices and can trigger the phone dialer when clicked.
Can I format numbers from any country?
Yes, this tool supports phone numbers from 200+ countries. Select the country from the dropdown to apply the correct formatting rules, including the right country code, digit grouping, and national format conventions.