ESpanix: Spain’s Internet Exchange Point

Spanish Internet Exchange Point

ESpanix is a Spanish non-profit organization that manages and maintains a neutral Internet Exchange Point (IXP) in Spain. Stackscale is connected to ESpanix with a clear objective: improving our connection routes to all the providers that exchange traffic there. In addition to this IXP, we are connected to other Internet Exchange Points such as AMS-IX and we are interconnected to diverse Tier 1 operators and a great number of companies through private peering agreements.

ESpanix Infrastructure and interconnection

ESpanix has its own data center in Madrid, with its own team 24/7. Moreover, it has transmission equipment in the most prestigious data centers of Madrid; from which they also guarantee the access to all its interconnection services. Its goal is providing an interconnection platform and a neutral interconnection facility to all its members.

Security is one of the strengths of this Internet Exchange Point, thanks to its double network structure prepared against failures; the only one in Spain. Besides, regarding its traffic, ESpanix transfers more than 500 Gbps, on average. It reached a 1 Tbps peak in November 2020.


The following graph shows an example of ESpanix’ aggregated traffic, in December 2020. The daily updated graph is available on its website.

Espanix Traffic Graphic December 2020

IPv6 ratio

Regarding the adoption of the IPv6 protocol, in December 2020, ESpanix IPv6 ratio was 1.39, on average.

IPv6 ESpanix graph December 2020

ESpanix history and evolution

ESpanix Internet Exchange Point was founded in 1997, thanks to the initiative of the Internet Users Association (Asociación de Usuarios de Internet, in Spanish). In 1998, its speed was only 10 Mbps; a tiny number compared with its current traffic. Because during its almost three decades of life, traffic has grown exponentially.

In 2002, ESpanix became the 5th European node in terms of traffic, with 4 Gbps. Four years later, in 2006, it reached 70 Gbps and went up to the third position. In 2018, it updated its trunk network and, as we mentioned before, it already exceeds 500 Gbps.

IXPs in Spain and in the world

ESpanix is the most relevant IXP among the Spanish Internet Exchange Points. Other IXPs in Spain are CATNIX, Euskonix and GalNIX. As for the world’s IXPs, there are more than 150 exchange points distributed around the world. You can check the complete list of Internet Exchange Points here.

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