[atlas] Location of probe controllers

Hi, I was looking at the built-in traceroute measurements and noticed additional targets (ctr-*.atlas.ripe.net) apart from the DNS root servers. As I understand it, these are the controllers for the probes. However, I was wondering where they are physically located and could not find any clear information about that. My guesses from the DNS names are based on IATA airport codes: ctr-ams02.atlas.ripe.net (Amsterdam, NL) ctr-ams03.atlas.ripe.net (Amsterdam, NL) ctr-ewr01.atlas.ripe.net (Newark, NJ, US) ctr-fnc01.atlas.ripe.net (Funchal, PT) ctr-nue13.atlas.ripe.net (Nürnberg, DE) ctr-nue17.atlas.ripe.net (Nürnberg, DE) ctr-sin02.atlas.ripe.net (Singapore, SG) Can anyone confirm or correct these locations? Best, Malte