Address span per AS (Global)
----------------------------

   ASN  No of nets  /20 equiv  Description
  2501           4         49  UTnet - The University of Tokyo, JP
 38635           2         32  KEIO-NET - Keio University, JP
  2500           3         16  WIDE-BB - WIDE Project, JP
 17932           1         16  JAIST - Japan Advanced Institute of Science and Technology, JP
131158           2         16  NAIST-AS - Nara Institute of Science and Technology, National University Corporation, JP
