Luxembourg addresses are short and strict: house number then street name, then a four-digit postal code prefixed with L- before the town. There is no state or region line. Get the L- code or the number order wrong and POST Luxembourg routes it to the wrong commune. Here is the format, a real example, and the mistakes to catch.
A Luxembourg label is recipient, optional company, the house number followed by the street name, then the L- postal code and town on one line, then the country. There is no state or region line.
Marie Weber personal or business recipientExemple S.à r.l. optional, above the street line8A Avenue Monterey house number comes <strong>before</strong> the street nameL-2163 Luxembourg L- prefix and 4-digit code first, then the town, on one lineLUXEMBOURG required for inbound international shipmentsThe four-digit postal code defines the delivery area for POST Luxembourg and drives sorting. It is written with the L- prefix and sits before the town name, which trips up forms built for the US city, state ZIP order.
The country-specific rules that generic autocomplete and single-line address fields tend to get wrong.
Luxembourg postal codes are conventionally written with the country letter, as in L-2163. The four digits alone still route, but international carriers and cross-border forms expect the L- prefix, and dropping it can cause confusion with neighboring four-digit systems.
Luxembourg follows the French convention: the number comes first, then the street, as in 8A Avenue Monterey. A form that hard-codes the German street-then-number order produces an address couriers read wrong.
POST Luxembourg routes on the four-digit code, not a province or canton. Adding a region line is unnecessary and can confuse an address parser. Required fields are the street, postal code, and town only.
Every Luxembourg postal code is exactly four digits, for example 2163. A five-digit code borrowed from French or German habits does not match, and a stripped digit points to the wrong commune.
Each of these passes a basic "is this field filled in" check but fails at the carrier, turning into a redelivery, a return, or an address correction fee.
L- in L-2163 can cause cross-border sorting systems to misread a four-digit code shared with neighboring countries.Avenue Monterey 8A instead of 8A Avenue Monterey reverses the expected number-first order.Luxembourg L-2163 reverses the expected L-2163 Luxembourg order.How the major carriers handle Luxembourg addresses, and what your label needs to satisfy each one.
The national postal operator and the backbone for domestic and inbound mail. Sorting is postal-code-driven, so a valid four-digit L- code is the single most important field on the label.
Major parcel carriers for Luxembourg's cross-border ecommerce. They expect the number-first street order and a clean L- code and town line for accurate delivery.
International carriers for inbound shipments. Include the country line and keep the L- prefix; they charge for address corrections on misrouted parcels.
Address Guard checks Luxembourg addresses against carrier and postal databases before the order ships, normalizes the format, and flags the errors that cause failed deliveries. 240+ countries, $0.05 per check.
Part of the Address Guard international address format guide, covering 240+ countries.