Every number type in Monaco with real format examples: how numbers are written domestically, how to dial them from abroad, and the E.164 form your systems should store.
Right now in Monaco
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Country code
+377
Trunk prefix
0
Intl. call prefix
00
Mobile digits
8,9
Number formats by type
Examples from the official numbering plan metadata. The E.164 column is the normalized form for databases and APIs.
Type
Domestic (national)
From abroad
E.164
Digits
Landline
0 99 12 34 56
+377 99 12 34 56
+37799123456
8
Mobile
06 12 34 56 78
+377 6 12 34 56 78
+377612345678
8,9
Toll-free
0 90 12 34 56
+377 90 12 34 56
+37790123456
8
How to call Monaco
From abroad: dial +377 (or your country's exit code, e.g. 00 from Europe, 011 from North America), then the national number without the leading 0. Example: +377 6 12 34 56 78
Within Monaco: dial the number as written domestically, including the trunk prefix 0. Example: 06 12 34 56 78
Calling abroad from Monaco: the international prefix is 00, or simply use + on mobiles.
Storing numbers in software: always store E.164 (+377612345678): unambiguous, sortable, and what SMS and telephony APIs expect.
Exact dial sequence from your country
Pick where you are calling from and get the digit-for-digit sequence for a Monaco number, with your country's exit code instead of the generic +.
Dial exactly
Frequently Asked Questions
What is the phone number format in Monaco?
Numbers in Monaco use country code +377. A mobile number looks like 06 12 34 56 78 domestically, or +377 6 12 34 56 78 in international format (E.164: +377612345678). Mobile numbers have 8,9 national digits.
How do I call Monaco from abroad?
Dial your country's international prefix (or +), then 377, then the national number without the leading 0. Example: +377 6 12 34 56 78.
What is the country calling code for Monaco?
The country calling code for Monaco is +377. To call abroad from Monaco, the international prefix is 00 (or use +).
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