Peering
The 25 largest Internet Exchange Points
An IXP is a neutral switching fabric where networks peer directly instead of paying transit. The biggest IXPs anchor entire regional internets. Ranked by member-network count, the top 25 connect 14,445 aggregate network memberships across 15 countries.
#1 is IX.br (PTT.br) São Paulo with 1,859 member networks — a single peering fabric reaching most of the global routing graph.
Country concentration in the top 25
The list
- 1,859 networks27 facilities
- 1,015 networks26 facilities
- 855 networks17 facilities
- 839 networks14 facilities
- 820 networks5 facilities
- 775 networks13 facilities
- 611 networks
- 599 networks9 facilities
- 548 networks1 facility
- 10🇳🇱NL-ixAmsterdam, Rotterdam, Brussels, Luxembourg, Frankfurt, Düsseldorf, Berlin, Dublin, London, Copenhagen, Paris, Marseille530 networks78 facilities
- 513 networks13 facilities
- 461 networks5 facilities
- 455 networks16 facilities
- 443 networks8 facilities
- 425 networks10 facilities
- 417 networks47 facilities
- 396 networks2 facilities
- 394 networks13 facilities
- 381 networks4 facilities
- 374 networks15 facilities
- 373 networks26 facilities
- 352 networks7 facilities
- 343 networks3 facilities
- 341 networks5 facilities
- 326 networks22 facilities
Member-network counts come from PeeringDB. Some IXPs publish stats showing peak traffic in terabits per second — those numbers can shuffle the ranking by traffic volume, but membership is the most stable, comparable signal across regions.