Luxembourg +352
International code · Europe
How to dial
No trunk prefix — dial local and long distance numbers directly.
- Mobile length
- 9 digits
- Mobile prefixes
XXX XXX XXX- International format
+352 XXX XXX XXX- Domestic trunk
- (none)
Sign-up availability
What to expect when signing up for these services with a physical SIM from this country:
Applies to every platform: VoIP / virtual numbers and heavily-reused number pools get rejected. Physical SIM only.
How to read a number
+352612345678
- +352Country code
- Luxembourg.
- 6Mobile prefix
- ILR defines everything from 61 to 69 as mobile; new numbers always start with 6 and have 9 digits. Blocks of 100,000 / 10,000 / 1,000 go to operators, but the table doesn't say who holds what, and numbers are portable, so the range doesn't identify the operator.
- 12345678Remaining 8 digits
- The subscriber number.
Dialled domestically as these 9 digits; there is no trunk prefix.
4 sources
Number ranges & quality
| Range | Type | Notes |
|---|---|---|
Starts with 6, 9 digits (621, 651, 655, 656, 661, 671, 681, 691, 692) |
Mobile carrier | ILR defines everything from 61 to 69 as mobile; new numbers always start with 6 and have 9 digits. ILR's table of ranges in use (October 2025): 621, 651, 655, 656, 661, 671, 681, 691 and 692 are live, 628, 658, 668, 678 and 698 are blocked for now, and 6790–6799 are special mobile services. Blocks of 100,000 / 10,000 / 1,000 go to operators, but the table doesn't say who holds what, and numbers are portable, so the range doesn't identify the operator. |
Starts with 60, 12 digits |
Other | ILR's table marks this range for telematic services, i.e. IoT / M2M. Not numbers for people. |
Physical SIMs can sign up without issues; prepaid cards need real-name registration.
Carriers & prefixes
Mobile prefixes by carrier.
Number portability applies — a prefix only shows the original carrier.
Porting rules in full
ILR states that the obligation to port mobile numbers is “absolute”: every operator must offer it, prepaid users included, and the voicemail number moves along with the mobile number. The process: you fill in a formal request with the new operator (which also counts as cancelling your contract with the old one); the old operator must hand you the relevant information immediately and within 3 working days at the latest; once the conditions are met, porting a mobile number takes at most 1 working day, and service interruptions should be avoided.
On the same page ILR links official “which operator is this number with” lookups: lookuplux for mobile numbers (http://lookuplux.systor.st/lux_lookup_001/lookup.html) and giefnp.lu for landlines.
User share comes from ILR (Luxembourg Regulatory Institute), as of 2025-12. It shows how widely each operator is used — not how good its signal or service is. Official data →
-
POST Mobile carrierUser share50.3%
The former state operator (POST Luxembourg); 50.3% of mobile subscribers in 2025 — half the market.
-
Tango Mobile carrierUser share32.9%
Run by Proximus Luxembourg S.A. (a separate company from Belgium's Proximus). 32.9% in 2025.
-
Orange Mobile carrierUser share15.8%
Orange Communications Luxembourg; 15.8% in 2025.
4 sources
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Other countries
Elsewhere in Europe