Luxembourg phone number 2026: how to get a +352 number?
A Luxembourg phone number — recognisable by its international dialling code +352 — is now essential to integrate fully into professional and daily life in the Grand Duchy. Whether you are a resident, cross-border worker, newly arrived expat or long-stay visitor, having a 6XX XXX XXX number simplifies your procedures, boosts your professional credibility and guarantees optimal connectivity across Luxembourg. This guide explains the format of Luxembourg numbers, how to get one depending on your situation, and what options are available (physical SIM, eSIM, prepaid).
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Compare plans →The +352 dialling code: overview
Luxembourg’s international telephone dialling code is +352, assigned by the International Telecommunication Union (ITU). This code identifies Luxembourg in the global numbering system and must be dialled before the local number for any call from abroad to Luxembourg.
Management of Luxembourg’s national numbering plan is entrusted to the ILR (Institut Luxembourgeois de Régulation), under the Law of 17 December 2021 on electronic communications networks and services.
| Country | Dialling code | Leading zero? | Mobile number length |
|---|---|---|---|
| Luxembourg | +352 | No — never | 9 digits |
| France | +33 | Yes — drop for international calls | 10 digits (incl. leading 0) |
| Belgium | +32 | Yes — drop it | 10 digits |
| Germany | +49 | Yes — drop it | 10-11 digits |
Source: ILR — Luxembourg national numbering plan
An important specificity: unlike France, Belgium or Germany, Luxembourg numbers do not start with a zero — neither in local format, nor internationally. A Luxembourg mobile number is always written and dialled as 9 digits, whether you are in Luxembourg or abroad.
Format of Luxembourg phone numbers
Luxembourg uses a closed numbering plan with no geographic regional codes — the entire territory is a single zone. All numbers are used in full national format, whether in Luxembourg or abroad.
Mobile numbers
All Luxembourg mobile numbers start with the digit 6, consist of 9 digits in total (standardised format since 2006), in the format 6XX XXX XXX (e.g. 621 123 456). Prefixes currently in use include: 621, 628, 651, 655, 658, 661, 668, 671, 678, 681, 691, 692, 698.
Fixed-line numbers
Luxembourg fixed-line numbers have 8 digits (since 2000). They may start with different digits depending on the service: 2x or 3 for residential and professional lines. There are no regional codes in Luxembourg.
| Number type | Prefix / Format | Length | Example |
|---|---|---|---|
| Mobile | Starts with 6 | 9 digits | 621 123 456 |
| Fixed (residential/pro) | Starts with 2x or 3 | 8 digits | 27 86 20 27 |
| Freephone | 800x | 8 digits | 8002 8004 |
| Premium rate | 900x / 905x | 8 digits | 900 12 345 |
| Emergency | 112, 113 | 3 digits | 112 |
Source: ILR — Luxembourg national numbering plan
Before September 2006, Luxembourg mobile numbers started with different digits (e.g. 021, 091…). The ILR standardised all new mobile numbers to the prefix 6 from that date. All active Luxembourg mobile numbers today begin with 6.
How to call a Luxembourg number from abroad
To call a Luxembourg number from abroad, dial the international code +352 followed by the full local number. There is no leading zero to remove — Luxembourg numbers never had one.
+352 621 123 456The + sign is obtained by holding down the 0 key on most smartphones.
00 352 621 123 456
011 352 621 123 456
Always save Luxembourg numbers in international format in your contacts: +352 XXX XXX XXX. This format works everywhere in the world. For cross-border workers, calls to Luxembourg are included in most mobile and home internet plans in France, Belgium and Germany.
Why have a +352 Luxembourg number?
Beyond connectivity, a Luxembourg number offers concrete advantages in several dimensions of life in the Grand Duchy — and even from abroad for cross-border workers.
Some Luxembourg administrative procedures require or prefer a local number: registration on MyGuichet.lu, SMS identity verification, opening a Luxembourg bank account. A +352 number avoids friction when foreign numbers are not recognised.
The Luxembourg property market is very competitive. Resident feedback suggests that landlords respond more readily to calls from a +352 number than from a foreign number.
Displaying a +352 number on your CV, email signatures or during job interviews signals integration into the Luxembourg ecosystem — particularly valuable for candidates applying from abroad.
With a Luxembourg operator plan, you connect directly to the local network — no automatic switch to a foreign network in border areas, no involuntary roaming risk, and optimal coverage across the country.
For cross-border workers in particular: a +352 number doesn’t mean giving up your French, Belgian or German number. Thanks to Dual SIM (physical SIM + eSIM), you can have both numbers active simultaneously on the same phone. Orange Luxembourg explicitly recommends this configuration for cross-border workers. See our eSIM Luxembourg guide and our cross-border mobile plan guide.
How to get a Luxembourg number
There are several ways to get a Luxembourg phone number, depending on your situation. In all cases, you will get a mobile number starting with 6XX.
Subscribe to a monthly plan with one of the Luxembourg operators (POST, Orange, Tango, LOL Mobile or Eltrona). Includes calls, SMS and data, generally without commitment. You receive a physical SIM or can activate an eSIM. The number is assigned to you permanently and you can keep it if you switch operator (free portability).
Available in operator shops and supermarkets (Cactus, Delhaize…). No monthly subscription needed, topped up on demand. Ideal for a temporary stay or to test the country before committing. ID is mandatory for purchase.
All Luxembourg operators offer their plans as eSIM — including prepaid. The fastest way to get a Luxembourg number from anywhere in the world, without visiting a shop. Orange Luxembourg allows eSIM activation via the Hello eSIM app, even from abroad.
| Option | Activation time | LU address required? | Best for |
|---|---|---|---|
| Monthly subscription | A few days (physical SIM) | Often yes | Residents, settled expats |
| Prepaid SIM in shop | Immediate | No | Visitors, new arrivals |
| eSIM Orange Hello eSIM | A few minutes | No | Cross-border workers, arrivals, urgent cases |
Sources: official operator websites · Switchr.lu comparison tool · June 2026
If you are a Luxembourg resident
Registered Luxembourg residents have the widest choice of mobile options. All operators are accessible to you — postpaid or prepaid, SIM or eSIM, with or without commitment.
Identity card or passport — from any country. Mandatory for any mobile subscription and for mandatory prepaid identification.
Or proof of registration with the municipality. Not required for prepaid or eSIM.
For direct debit on a postpaid subscription — some operators accept European accounts (SEPA IBAN), not only Luxembourg ones.
If you have just arrived and are not yet registered with the municipality: start with a prepaid SIM card or an eSIM to immediately have a Luxembourg number. You can switch to a postpaid subscription once your registration is complete. See our prepaid SIM guide for Luxembourg.
If you are a cross-border worker
Cross-border workers are a very common profile in Luxembourg — around 215,000 people work in the Grand Duchy while living in France, Belgium or Germany. Getting a Luxembourg number is entirely possible without living in Luxembourg.
How to subscribe to a Luxembourg plan from abroad
The most accessible solution for a cross-border worker is the eSIM via Orange Hello eSIM: from your smartphone, download the app, subscribe to an Orange Luxembourg plan, and immediately get a +352 number — without visiting a shop, without a Luxembourg address. You can also visit a shop in Luxembourg during a working day.
Keep only your foreign plan
- No extra steps needed
- Possible switch to a foreign network in border areas
- Fair use roaming risk if >50% of time abroad
- Foreign number less well received for housing/job search
- Sometimes less optimal coverage in dense Luxembourg zones
Add a Luxembourg plan on eSIM
- +352 number for professional life and Luxembourg admin
- Keep foreign number for family and friends at home
- Direct connection to Luxembourg network, no foreign switching
- All benefits of a Luxembourg telecom resident
- One phone — thanks to Dual SIM
The ideal configuration for a cross-border worker is Dual SIM: your home country number (physical SIM) for personal and local contacts, and your +352 number (eSIM) for your professional life in Luxembourg — on one single device. Orange Luxembourg explicitly recommends this configuration for cross-border workers.
If you have just arrived in Luxembourg
New arrivals in Luxembourg should get a +352 number as soon as possible — even before arriving, thanks to eSIM.
Before arrival — eSIM from your home country
If you have an iPhone XR or later (or a recent eSIM-compatible Android), activate a Luxembourg eSIM from your home country:
Available on the App Store and Play Store. No Luxembourg address required at this stage.
Online payment by international bank card. Identity document required for identification.
In a few minutes, without visiting a shop. You arrive in Luxembourg with an active local number, ready for administrative procedures, apartment viewings or contacting your future employer.
After settling in — switching to a postpaid subscription
Once registered with the municipality and having a Luxembourg address, you can subscribe to a postpaid plan with free portability of your prepaid or eSIM number. More details in our expat mobile plan guide for Luxembourg.
Key apps to install on arrival in Luxembourg: MyGuichet.lu (administrative services), CFL mobile (trains), Mobiliteit.lu (public transport). All use SMS authentication that works smoothly with a +352 number.
Getting a Luxembourg number without a Luxembourg address
It is entirely possible to get a Luxembourg number without officially living in the country. Options accessible without a Luxembourg address:
Accessible to anyone presenting a valid identity document in a shop. No Luxembourg address required. Available at POST, Orange and Tango shops, as well as some supermarkets.
The Hello eSIM app by Orange Luxembourg is accessible without a Luxembourg address. You can subscribe from anywhere in the world, without visiting a shop. The most accessible solution for getting a +352 remotely.
VoIP telephony services allow obtaining a virtual Luxembourg number without a physical mobile subscription. Suitable for occasional or professional use, but does not replace a mobile number for daily use in Luxembourg.
Some operators may require a Luxembourg delivery address to send a physical SIM. If you don’t have a Luxembourg address, eSIM (no postal delivery) or prepaid bought in a shop are the preferred solutions.
Which plan to choose for your Luxembourg number?
Once you have decided to get a +352 number, the plan question arises. The Luxembourg market offers a complete range of options depending on your usage profile.
Essential use — supplementary line or prepaid
Profile: cross-border worker with main plan abroad, long-stay visitor
If you already have a plan in your country of residence and simply want a +352 number for local calls and admin, a prepaid or low-data plan will suffice. The Orange Hello eSIM prepaid is accessible without complex procedures. For LOL internet customers, LOL MOBILE FAMILY at €0/month is worth exploring.
Daily use — main Luxembourg plan
Profile: resident, expat, intensive cross-border worker
For daily use with calls, SMS and mobile data, compare available no-contract plans: Orange (Access+), Tango (GO mobile S or M), LOL Mobile L, Eltrona. These plans include European roaming and offer good value. Compare plans on our tool →
Intensive use — unlimited data or high volumes
Profile: heavy data user, frequent traveller
For intensive users, unlimited data plans (Orange BeUnlimited, Tango GO Unlimited, LOL UNLIMITED, POST POP MAXI) cover Luxembourg, Europe and some the USA. All available no-contract except POST (12 months minimum). Compare premium plans →
Compare Luxembourg mobile plans in 2026
Whatever your profile — resident, cross-border worker or new arrival — our comparison tool helps you find the ideal plan to get your +352 number at the best price.
Access comparison tool →Frequently asked questions about Luxembourg phone numbers
What is Luxembourg’s telephone dialling code?
Luxembourg’s international dialling code is +352 (or 00352 from a landline). This code, assigned by the International Telecommunication Union (ITU), must be dialled before the local number for any call from abroad to Luxembourg.
How do I recognise a Luxembourg mobile number?
All Luxembourg mobile numbers start with the digit 6 and consist of 9 digits in total (format 6XX XXX XXX). Prefixes currently in use include 621, 651, 661, 671, 681, 691 and others. There is no leading zero in Luxembourg numbers — neither in local nor in international format.
How do I call Luxembourg from France?
To call a Luxembourg number from France, dial +352 (or 00352) followed by the complete Luxembourg number (9 digits for mobile, 8 for fixed). There is no zero to remove. Example: to reach 621 123 456, dial +352 621 123 456. These calls are included in most French mobile and home internet plans.
Can I get a Luxembourg number without living in Luxembourg?
Yes. Several options allow getting a +352 number without Luxembourg residency: a prepaid SIM card bought in a shop in Luxembourg (ID required), or an eSIM via the Orange Luxembourg Hello eSIM app (entirely online, no Luxembourg address required). These solutions particularly suit cross-border workers wanting a Luxembourg professional number. More in our eSIM Luxembourg guide.
Can I have a Luxembourg number and a French number on the same phone?
Yes, thanks to Dual SIM technology. Recent smartphones can have two numbers active simultaneously — one on a physical SIM, one on eSIM. Orange Luxembourg explicitly recommends this configuration for cross-border workers: your home country number on physical SIM, your Luxembourg number on eSIM. You then manage which line to use for each call, SMS or data connection.
Which operator to choose to get a Luxembourg number quickly?
The fastest solution is the Orange Luxembourg Hello eSIM app — you can get an active +352 number in a few minutes from anywhere in the world, without visiting a shop. For a physical SIM, all operators have shops in Luxembourg, and some also allow online ordering with delivery.
Do Luxembourg phone numbers have regional codes?
No. Luxembourg uses a closed numbering plan with no geographic regional code. The entire territory is a single numbering zone. A Luxembourg fixed-line number is dialled the same way from Luxembourg City, Esch-sur-Alzette or Clervaux — there is no regional prefix to dial.