This directory contains the inferred geographic relationships using the method described at http://wwww.caida.org/catalog/datasets/as-relationships-geo. There are two files: 201603.as-rel-geo.txt and 201603.locations.txt. The as-rel-geo file contains the geographic inferrences. Each line contains a single AS relationship, it's inferred geographic locations, and the method used to infer them. format: AS0|AS1|loc0,source0.0,source0.1,loc1|loc1,source1.0... sources: bc : BGP communities itdk : Internet Topology Data Kit mlp : Multilateral Peering lg : Looking Glass edge: Edge AS link 3|3356|Boston-MA-USA,bc|San Jose-CA-USA,itdk BGP communites where used to infer a link between AS3 and AS3356 in Boston, MA and the ITDK was used to infer the same link in Jose, CA, USA. The locations file provides more information about individual locations. # format: lid|continent|country|region|city|latitude|longitude|population Aabenraa-83-DNK|Europe|DNK|83|Aabenraa|55.0324|9.4417|10 Population is left 0 if the population was not known. NOTE: the two files 201603.as-rel-geo.txt and 201603.locations.txt were replaced on 25-Apr-2017, correcting an error in the earlier versions.