+377 explained
The Monaco country code, 377, is what you dial before a Monaco number when you call from abroad. It is also known as the Monaco dialing code, Monaco calling code, or Monaco phone code. In the Monaco phone number format, +377 comes first, then the area code and the local number.
- Country code
- +377
- The 00377 country code is the same number
- ISO country codes
- MC, MCO
- Use the MC country code or the MCO country code on forms and passports. To call Monaco, dial +377
- Used in
- Monaco
- No other country or territory dials +377
- Exit code
- 00
- From most countries. Also 011 from United States and Canada, 0011 from Australia, and + from any mobile
- Trunk prefix
- 0
- Drop it after +377
- Number length
- 8 or 9 digits
- After +377
- Time now in Monaco
- Monaco mobile number format
- 06 12 34 56 78
- From abroad: +377 6 12 34 56 78
- Monaco landline number format
- 99 12 34 56
- From abroad: +377 99 12 34 56
Monaco phone number types
The first digits of a Monaco number tell you what kind of number it is: a landline, a mobile, a free number, or one that costs more to call. Here is a sample of each type of Monaco phone number, as dialed inside Monaco and from abroad.
Good to know before you call Monaco
“Allô”
The standard French word for answering a telephone call. Monaco's official language is French
Reply
“Allô”
Emergency number
112
17 reaches the police directly. 18 also reaches the fire and rescue service, which handles ambulance calls too.
Portail MonacoSanté, Gouvernement de MonacoMonaco's first mobile phones launched in 1993. Monaco got its own code, +377, only in 1996.
Gouvernement de MonacoFrom 1 October 2026, every new Monaco Telecom mobile number has 8 digits and starts with 377, instead of the old 10-digit, 06-style number.
Gouvernement de MonacoThe government says the new 377 mobile numbers will help fight number spoofing and some forms of phone fraud.
Gouvernement de MonacoMonaco runs a night line for on-call doctors, 116117, every day from 7pm to 7am.
Portail MonacoSanté, Gouvernement de Monaco
What it costs to call Monaco (using Suparelay)
Landline from $0.19/minMobile from $1.00/min
Only 76 of 221 countries cost more to call than Monaco.
Enter a numberEach bar counts the countries at that price
Want to call Monaco?
Call any phone from this tab. Nothing to install on either side, and you pay cents a minute.
Why a call to Monaco fails
You call from: 🇺🇸 United States
The 0 is still in the number
An older Monaco mobile number, issued before 1 October 2026, has a 0 at the front inside Monaco. From abroad, drop it: +377 takes its place.
- Connects
- 011 377 99 12 34 56
- Does not connect
- 011 377 09 12 34 56
The exit code is wrong for your country
00 works from Monaco's neighbours in Europe and from most of the world. From the US and Canada, dial 011 then 377.
- Connects
- 011 377 99 12 34 56
- Does not connect
- 00 377 99 12 34 56
The number does not take calls from abroad
A Monaco number that starts with 8 or 9 can be a toll-free or other special line, and those often do not take calls from outside Monaco.
- Connects
- 011 377 99 12 34 56
- Does not connect
- 011 377 90 12 34 56
Questions about +377
Which country is +377?
+377, or country code 377, belongs to Monaco, the small principality on the French Riviera.
What is +377?
+377 is the code you dial before a Monaco number when you call from another country.
What is the difference between +377 and 00377?
The + stands for your own exit code. 00 is the exit code in Monaco, Europe, and most of the world, so 00 377 and +377 reach the same number there. From the US and Canada, dial 011 377 instead.
Do I drop the 0 after +377?
Yes, for an older Monaco mobile number issued before 1 October 2026. It has a 0 at the front when dialled inside Monaco, so drop it and dial +377 6 instead.
Can I text a +377 number?
Yes. Write the number as +377 without a leading 0, and your carrier sends the text abroad at its international rate.
How much does it cost to call Monaco?
The dialer on this page shows the exact price of the Monaco number you enter before you call.
What time is it in Monaco right now?
This page shows Monaco time next to the dialer, so you know the local hour before you call.
Why do new Monaco mobile numbers start with 377?
Because from 1 October 2026, Monaco Telecom gives every new mobile line an 8-digit number starting with 377, instead of the old 10-digit number that started with 06.
What number do I call for an emergency in Monaco?
Dial 112 for a general emergency. It reaches the fire and rescue service, which also handles ambulance calls. Dial 17 for the police directly.
The information on this page is accurate as of September 26, 2026.
Gouvernement de Monaco, numérotation téléphonique mobile