Report for 17531

Name

AS17531-29 - JPNIC-2Byte-ASBLOCK-AP, JP

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS4637) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

17531 JPNIC-JP-ASN-BLOCK Japan Network Information Center

  Adjacency:     4  Upstream:     3  Downstream:     1
  Upstream Adjacent AS list
    AS10026   ANC Asia Netcom Corporation
    AS2516    JPNIC-ASBLOCK-AP JPNIC
    AS2914    NTT-COMMUNICATIONS-2914 - NTT America, Inc.
  Downstream Adjacent AS list
    AS23818   --No Registry Entry--

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
4275  AS17531  ORG+TRN Originate:      24576 /17.42  Transit:       1280 /21.68 JPNIC-JP-ASN-BLOCK Japan Network Information Center

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
11984 AS17531 JPNIC-JP-ASN-BLOCK Japan Network Informa      6      0      0      6      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  61.206.96.0/20       4637 10026 17531       
  202.138.80.0/20      4637 10026 17531       
  202.180.176.0/20     4637 10026 17531       
  210.156.64.0/20      4637 2516 17531        
  210.211.32.0/20      4637 10026 17531       
  211.1.176.0/20       4637 2516 17531        

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS17531   3 More Specifics   6 Total Advertisements   JPNIC-JP-ASN-BLOCK Japan Network Information Center
    61.206.96.0/20                61.200.0.0/13
    210.156.64.0/20               210.144.0.0/12
    211.1.176.0/20                211.0.0.0/13

Whois Entry

whois: 402603

IANA has recorded AS17531 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS17531\n             % [whois.apnic.net]
             % Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html
             
             % Information related to 'AS17408 - AS17651'
             
             as-block:       AS17408 - AS17651
             descr:          APNIC ASN block
             remarks:        These AS numbers are further assigned by APNIC
             remarks:        to APNIC members and end-users in the APNIC region
             admin-c:        HM20-AP
             tech-c:         HM20-AP
             mnt-by:         APNIC-HM
             mnt-lower:      APNIC-HM
             last-modified:  2019-01-08T23:22:27Z
             source:         APNIC
             
             role:           APNIC Hostmaster
             address:        6 Cordelia Street
             address:        South Brisbane
             address:        QLD 4101
             country:        AU
             phone:          +61 7 3858 3100
             fax-no:         +61 7 3858 3199
             e-mail:         helpdesk@apnic.net
             admin-c:        AMS11-AP
             tech-c:         AH256-AP
             nic-hdl:        HM20-AP
             remarks:        Administrator for APNIC
             notify:         hostmaster@apnic.net
             mnt-by:         MAINT-APNIC-AP
             last-modified:  2013-10-23T04:06:51Z
             source:         APNIC
             
             % Information related to 'AS17503 - AS17534'
             
             as-block:       AS17503 - AS17534
             descr:          JPNIC-2Byte-ASBLOCK-AP
             descr:          for assignment to JPNIC members
             country:        JP
             admin-c:        JNIC1-AP
             tech-c:         JNIC1-AP
             remarks:        Authoritative information regarding AS Number
             remarks:        assignments made from within this block can be
             remarks:        queried at whois.nic.ad.jp.
             remarks:        To only display English output,
             remarks:        add '/e' at the end of command,
             remarks:        e.g. 'whois -h whois.nic.ad.jp xxx/e'.
             mnt-by:         APNIC-HM
             mnt-lower:      MAINT-JPNIC
             last-modified:  2017-06-12T04:00:31Z
             source:         APNIC
             
             role:           Japan Network Information Center
             address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
             address:        Chiyoda-ku, Tokyo 101-0047, Japan
             country:        JP
             phone:          +81-3-5297-2311
             fax-no:         +81-3-5297-2312
             e-mail:         hostmaster@nic.ad.jp
             admin-c:        JI13-AP
             tech-c:         JE53-AP
             nic-hdl:        JNIC1-AP
             mnt-by:         MAINT-JPNIC
             last-modified:  2022-01-05T03:04:02Z
             source:         APNIC
             
             % This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)