Country codes › Europe
🇲🇨 +377 country code
+377 is the international dialing code for Monaco. A number there is written +377 6 12 34 56 78 internationally and 06 12 34 56 78 at home. Enter a +377 number below for a free check before you call back.
- Country code: +377
- Exit code from Monaco: 00
- Time: UTC+1
- Mobile numbers: 8 or 9 digits
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+377 at a glance
- Country code
- +377
- Country
- 🇲🇨 Monaco
- Region
- Europe
- Exit code (to call out)
- 00
- Trunk prefix (domestic)
- 0
- International format
- +377 6 12 34 56 78
- Domestic format
- 06 12 34 56 78
- From the US / Canada
- 011 377 6 12 34 56 78
- Mobile number length
- 8 or 9 digits
- Landline length
- 8 digits
- Time zone
- UTC+1, with daylight saving
- Local time now
- —
Unexpected call from +377?
If you have no contacts in Monaco, a missed call from +377 that rings once is the classic "wangiri" pattern: the callback is billed at international or premium rates. Do not call back; look the number up instead.
Messages from foreign numbers offering jobs, investments or "a wrong number" chat are another common opener. A real +377 number can also be spoofed, so caller ID alone proves little — check whether the number is valid, which network holds it and whether it is a mobile, landline or VoIP line.
Foreign number on your screen? Why caller ID isn't the whole story
How to dial +377
- From a mobile anywhere: press + (hold 0), then 377, then the number without the leading 0.
- From the US or Canada: dial 011, then 377, then the number without the leading 0 — for example 011 377 6 12 34 56 78.
- From most of Europe, Africa and Asia: dial 00, then 377 and the number without the leading 0.
- Inside Monaco: drop the 377 and dial the number with its 0 in front — 06 12 34 56 78.
Mobile networks on +377
Mobile number ranges under +377 are allocated to these networks, among others. Numbers can be ported between them, which is why a lookup checks the live carrier rather than the range.
- Monaco Telecom
Country codes
Nearby codes in Europe
よくある質問
+377 questions
Sources: Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Which country uses +377?
+377 is the country code for Monaco.
How do I call a +377 number from the US?
Dial 011, then 377, then the number without its leading 0. For example: 011 377 6 12 34 56 78.
How many digits is a Monaco phone number?
Mobile numbers have 8 or 9 digits after +377; landlines have 8. A number with a different length is either mistyped or not genuine.
Which mobile networks use +377?
Number ranges under +377 are allocated to networks including Monaco Telecom. Numbers can be ported, so a lookup checks the current carrier rather than the original range.
Who is calling me from +377?
Enter the number in the lookup at the top of this page. The free check confirms whether it is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they exist.
Got a call from +377?
Run the free check first — validity, carrier, line type and region — and unlock the full report only if you need it.