Your lines are changing numbers from 6 July 2026!

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2 min reading

The numbers of your bus lines change, for more clarity in your transport network. Discover the new number of your line!

A MORE READABLE OFFER WITH RENUMBERING

Why does the number of the lines change?

The bus network in Île-de-France is made up of nearly 1900 lines, including 1500 in the outer suburbs and the current numbering system means that there are many lines with the same number.

The tools for searching for schedules and routes are regional, and it is therefore often complicated to find your line. For example, there are 13 bus lines that have the number 10!

Currently, there are very different names (12, N133, 501, Soir) and duplicates in the line numbers (there are 12 lines with the same letter: 2 A, 2 B, 2 C... on the current bus network), which complicates the understanding of the network.

How to find your way around the new issues?

Île-de-France has been divided into departments and sectors, each of which has a specific code.

In the Argenteuil Boucles de Seine area, all bus lines will now start with 64. Whenever possible, the old number has been taken over as best as possible in order to facilitate the change (example: 18 becomes 6418, etc.).

What will this new number bring to users?

Users will be able to find their bus line more easily, as it will be the only one in Île-de-France to have this number!

Thus, when we type her number into the search engines of the application or iledefrance-mobilites.fr site, we will be able to directly access the information about her.

Line Mapping Table - Renumbering

To find the information of all your lines:

Website: www.iledefrance-mobilites.fr and mobile app Île-de-France Mobilités

To calculate your route:
> Get around > Directions

> Getting around > Schedules > Select a line

To follow local news:

News > Select my lines

On Twitter: @ARGBDS_IDFM

By phone on 0800 10 20 20