Toll-free and premium numbers in Monaco
Toll-free numbers in Monaco start with 0800 or 090 when dialled inside Monaco (800 or 90 after +377 from abroad) and have 8 digits after the country code. Google's numbering-plan data lists no premium-rate range for Monaco. Example: 90 12 34 56, or +37790123456 in E.164.
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Paste your Monaco toll-free numbers (a mixed list is fine). They are counted here at once; the free checker then gives every number its E.164 form, country and line type, with a file to download.
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See the phone add-onFree-to-call and charged ranges in Monaco
Every valid Monaco number of each type starts with one of these digit groups. The example column shows Google’s example number for the range, written internationally.
| Type | Starts with, after +377 | Dialled inside Monaco | Digits | Example |
|---|---|---|---|---|
| Toll-free | 800, 90 | 0800, 090 | 8 | +377 90 12 34 56 |
What each type means for the caller
- Toll-free: 0800 or 090
- Free to the caller, usually only from inside the country; the business that owns the number pays for the call. 8 digits after +377.
Writing and dialling a Monaco toll-free number
Inside Monaco, dial the number with its leading 0. From abroad or in E.164, drop the 0 and put +377 in front: 90 12 34 56 becomes +37790123456. Many freephone numbers still only accept calls from inside Monaco, and a call from abroad that does connect is usually charged.
Toll-free and premium numbers in a phone list
In a lead or customer list, a toll-free number usually reaches a company line rather than a person, and a premium-rate number costs you money to call. The free toll-free number checker flags them in a pasted list or CSV, and the Monaco phone number format page covers mobiles and landlines.
Next step
A prefix says what a range is for. A live lookup says what the line is now.
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Common questions
- What is the toll-free prefix in Monaco?
- Monaco toll-free numbers start with 0800 or 090 at home, written +377 800 or 90 internationally. Every valid toll-free number starts that way, though not every number with those digits is in service.
- How many digits is a Monaco toll-free number?
- 8 digits after the country code +377, plus the trunk prefix 0 when dialled inside Monaco.
- Can I call a Monaco toll-free number from abroad?
- Sometimes. Dial +377 and the number without the leading 0. Many freephone numbers only take calls from inside Monaco, and where they do connect from abroad the call is usually charged.
Sources, checked 5 November 2026
- Ranges, lengths and examples: Google libphonenumber numbering-plan data (libphonenumber-js 1.13.15), the data our validator uses.
- Official plan: ITU-T E.164 national numbering plan for Monaco. The regulator’s filing is the authority when the two disagree.
The numbering plan only knows what a range was issued for.
In the US and Canada mobiles and landlines share the same prefixes, and anywhere a number can be ported or reassigned the range stops telling the whole story. A live carrier lookup asks the network data instead, which is what Pro + Phone ($49.99/mo) adds.
- 5,000 live carrier lookups a month: real line type, including US numbers
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