service feature

AS112 service – securing the DNS system 

In order to secure the DNS system, DE-CIX deploys AS112 project servers. The aim of the AS112 project is to create a web of DNS servers that catch reverse DNS queries for private IPv4 space (e.g. and see RFC 1918). This will reduce the load on so-called DNS root servers and makes the DNS system more secure and robust against DNS DDoS attacks.

The AS112 project servers operated by DE-CIX are part of the AS112 anycast network. DE-CIX announces AS112 on its route servers and makes the AS112 project servers so available for all customers peering with the route servers. The AS112 project servers operated by DE-CIX will be automatically used by reverse DNS queries for private IPv4 space. Customers do not need to change any configurations.

Available locations

The AS112 project service provided by DE-CIX is available at DE-CIX in Frankfurt, Hamburg, Munich, Dusseldorf, Ruhr region, New York, Dubai, Marseille, Madrid, Barcelona, Lisbon, Palermo, Istanbul, Athens, Chicago, Richmond, Phoenix, Oslo, Kristiansand, Copenhagen, and Esbjerg.

If you have any further questions regarding this, please contact the DE-CIX customer service.