Monaco Phone Number Format
Country code +377 · ISO MC
How to format, dial, and validate Monaco phone numbers, with live examples.
Country Code
+377
National Prefix
0
International Prefix
00
Mobile Portability
No
Try it now
Pre-filled with a valid fixed line number for Monaco. Edit it and click "Try It" to see the parsed result.
Number Types & Example Formats
Each Monaco phone-number type supported by libphonenumber, with a real example formatted three ways.
| Type | Length | National | International | E.164 |
|---|---|---|---|---|
| Fixed Line | 8 digits | 99 12 34 56 | +377 99 12 34 56 | +37799123456 |
| Mobile | 8–9 digits | 06 12 34 56 78 | +377 6 12 34 56 78 | +377612345678 |
| Toll Free | 8 digits | 90 12 34 56 | +377 90 12 34 56 | +37790123456 |
How to Dial Monaco Numbers
From abroad
Dial +377 followed by the national number, dropping any leading 0.
Within Monaco
Dial 0 before the local number to make a domestic call.
Dialing out of Monaco
Dial 00 followed by the destination country code and number.
Area Codes
Browse Monaco area codes with cities, timezones, and example numbers for each.
Validate a Monaco Number with the API
Send the number to the free libphonenumber API to get the parsed country, type, formatting, and validity.
curl https://libphonenumberapi.com/api/phone-numbers/+37799123456Frequently Asked Questions
What is the country code for Monaco?
└ The international country code for Monaco is +377. Use this prefix when dialing Monaco numbers from another country.
How long is a Monaco phone number?
└ Monaco phone numbers are typically 8 digits, not including the +377 country code.
How do I dial a Monaco phone number from abroad?
└ From abroad, dial +377 followed by the national number, dropping any leading 0. Within Monaco, dial 0 before the local number.
How do I validate a Monaco phone number programmatically?
└ Send a GET request to https://libphonenumberapi.com/api/phone-numbers/<number>. The free libphonenumber API returns the parsed country, format, type, and validity for any number — no API key required.