Monaco country code
+377 is the country code of Monaco. From the US, dial 011 377 6 12 34 56 78; from a mobile phone, dial +377 6 12 34 56 78.
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How to dial Monaco
Dial the exit code of the country you are calling from, then 377 without the plus sign, then the local number. Exit codes from ten large calling countries:
The example is a mobile number in Monaco, written locally as 06 12 34 56 78. Leave out the leading 0 when you dial it with the country code.
Time in Monaco and the best time to call
Monaco is on UTC+1. Compared with New York its clock is +6 h, with London +1 h and with Dubai -3 h (today's offsets, daylight saving included).
Monaco changes its clocks for daylight saving, so its offset moves between UTC+1 and UTC+2 during the year.
Business hours in Monaco run 09:00–18:00 local time on working days. On other clocks that is:
The weekend in Monaco is Saturday and Sunday.
How numbers in Monaco are built
A number in Monaco is the country code +377 followed by a national number of 8 or 9 digits. The trunk prefix, where there is one, is dropped after the code.
Written locally as 06 12 34 56 78, an example mobile number in Monaco is dialed as +377 6 12 34 56 78 from abroad.
To call out of Monaco, dial 00, then the other country's code and number. On a mobile phone you can type + instead of 00.
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Prices checked October 30, 2026.
A call or message from +377 you don't recognize
The country code shows which country's numbering plan a number is registered in. It doesn't show who is calling, and caller IDs can be spoofed, so a +377 number isn't proof that the person is in Monaco.
- Don't call back an unfamiliar international number, especially after a single ring. A missed call that tempts you to return it is a known callback trap, and a call to a premium-rate number can cost far more than a normal one.
- Never share verification codes, passwords or card details with someone who contacts you unprompted, whichever country the number appears to be from.
- If calls or messages keep coming, block the number and report it through your mobile carrier.
- Most calls from Monaco are ordinary calls from family, friends, colleagues and businesses. If you are expecting one, save the number once the person has confirmed it.
Frequently asked questions
What is the country code for Monaco?
The country code for Monaco is +377. From abroad, dial your exit code (00 from most countries, 011 from the US and Canada), then +377 without the plus sign, then the local number. Written locally as 06 12 34 56 78, an example mobile number in Monaco is dialed as +377 6 12 34 56 78 from abroad.
What's the exit code to dial Monaco from a mobile?
On a mobile phone you can skip exit codes altogether: type +377 and then the local number. From a landline, dial 011 from the US or Canada, 00 from the UK and most of Europe, or your own country's exit code first.
Do I need to drop the leading 0 when dialing Monaco?
Yes. Leave out the leading 0 after the country code: dial +377, then the rest of the number.
What time is it in Monaco, and when is a good time to call?
Monaco is on UTC+1. Business hours there (09:00–18:00) are 08:00–17:00 UTC, 03:00–12:00 in New York and 08:00–17:00 in London.
How many digits is a phone number in Monaco?
A number in Monaco has 8 or 9 digits after the country code +377, not counting a leading trunk digit.
How much does it cost to call Monaco?
With QuikRing a call to Monaco costs $1.05/min to a mobile and $0.19/min to a landline, charged per started minute. You call from your browser, so there is no SIM card, roaming plan or app to set up.
Who is calling me from +377?
The code shows which country's numbering plan a number belongs to, not who is calling, and caller IDs can be spoofed. Don't call back an unknown number, block it if it keeps calling, and report it through your mobile carrier.