These files are dumps of IHR SQL database. 
Each line is a row in the database and represents a prefix originated by a AS
(originasn_id) in BGP and one of the commonly found AS on the AS paths (asn_id).
The hege value (AS Hegemony score) reflects the proportion of paths that contain
asn_id.
If we found multiple transit ASes (asn_id) for a same route (prefix, originasn_id)
then there is multiple rows for that route. The unique key is (timebin, prefix, 
originasn_id, asn_id).

If you are not interested in AS Hegemony scores, you should look only at rows 
where originasn_id == asn_id.


Description of each field:
  - id: a unique identifier used by our database (you can ignore this)
  - timebin: time of measurement
  - prefix: network prefix
  - hege: hegemony score for the 3-tuple (prefix, originasn_id, asn_id). 
    Meaning that 'prefix' originated by 'originasn_id' is commonly reached via 
    the transit network 'asn_id'. If not interested in AS Hegemony scores, you
    can look only at rows where originasn_id == asn_id.
  - af: address family, this is either 4 or 6 (for IPv4 and IPv6)
  - visibility: percentage of RouteViews and RIS peers that see the prefix
  - rpki_status: the route (originasn_id/prefix) status in RPKI
  - irr_status: the route (originasn_id/prefix) status in IRR
  - delegated_prefix_status: prefix status in delegated files
  - delegated_asn_status: originasn_id status in delegated files
  - descr: description of the prefix found in IRR
  - moas: true if the prefix is announced by multiple origin ASNs
  - asn_id: ASN of the common transit networks to prefix.
  - country_id: country code of the prefix (Maxmind)
  - originasn_id: ASN originating the prefix in BGP