Lille · France
PeeringDB records two internet exchanges in Lille. Lillix, registered as Northern France and Eurometropole GIX, has 47 participants and France-IX Lille has 20, for 67 peers in total. Two colocation facilities hold nine network presences. An address that geolocates to Lille reports what an operator published, not where a device is.
Internet exchanges in Lille
An exchange is a shared switch where networks hand traffic to each other directly. Participant counts come from PeeringDB, where each network maintains its own record.
| Exchange | Participants | Registry carriers peering |
|---|---|---|
Lillix Northern France and Eurometropole GIX | 47 | none in the registry |
France-IX Lille | 20 | none in the registry |
Exchange records: PeeringDB.
Colocation facilities
Buildings where networks put equipment. The network count is how many PeeringDB members list a presence there, which shows where capacity in the city sits.
| Facility | Networks present | Address |
|---|---|---|
| Cogent Lille | 7 | 72 rue Jenner |
| UltraEdge Lille | 2 | Boulevard de la Moselle et de la Lorraine |
What a Lille IP address tells you
Lille's capacity sits in its exchanges rather than in colocation. Lillix, registered as Northern France and Eurometropole GIX, carries 47 participants and France-IX Lille carries 20, which together make up the city's 67 peers. The two facilities in the registry hold nine network presences between them, seven at Cogent Lille and two at UltraEdge Lille. Neither exchange lists a mobile ASN for Bouygues Telecom, Orange or SFR, so PeeringDB shows no public peering by a French mobile carrier in the city.
An address that geolocates to Lille may sit nowhere near it. Operators announce address blocks from a registry record that names one location for an allocation which can cover the whole country, and mobile traffic reaches the internet through a small set of gateways instead of from the cell serving the handset. Geolocation databases repeat the operator's published location, so a Lille result tells you how the block was registered and nothing about where the session started.
The origin ASN answers more of the question than the city field does. Look at which ASN announces the specific prefix and read the netname on the narrowest inetnum covering the address, not on the parent allocation. A prefix originated by a French mobile ASN (3215, 5410, 15557) is mobile traffic wherever the handset happens to be. With only nine network presences recorded across Lille's two facilities, few addresses here belong to a network with hardware in the city.
Mobile carriers in France
A mobile address in Lille is routed by one of the country's operators. Each entry lists the operator's ASNs, so you can check which network an address belongs to.
Questions
Which internet exchanges are in Lille?
Two are in PeeringDB. Lillix, whose registered name is Northern France and Eurometropole GIX, has 47 participants, and France-IX Lille has 20, giving the city 67 peers. Colocation is thin by comparison, with nine network presences across Cogent Lille and UltraEdge Lille.
Do French mobile carriers peer in Lille?
The registry gives no sign of it. Neither Lillix nor France-IX Lille lists a mobile ASN for Bouygues Telecom, Orange or SFR among its participants. PeeringDB covers public peering only, so private interconnection in the city would not appear on either participant list.
Does an IP that geolocates to Lille mean the device is there?
No. The city comes from the operator's registry record for the address block, not from the device using the address. Mobile networks send subscriber traffic out through a handful of gateways. Read the origin ASN and the netname on the exact prefix instead.
Sources
- PeeringDB - exchanges, participant counts, facilities and network presence, snapshot 2026-09-07
- PROXIES.SX carrier and ASN registry - operator ASNs used to match peering participants