Report for 33820

Name

REED-ELSEVIER-AS, GB

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 AS2.0) 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.

33820 REED-ELSEVIER-AS, GB

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS14618         AMAZON-AES - Amazon.com, Inc., US
    AS16509         AMAZON-02 - Amazon.com, Inc., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
8184  AS33820        ORIGIN  Originate:      15360 /18.09  Transit:          0 /0.00  REED-ELSEVIER-AS, GB

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       %
 6543 AS33820       REED-ELSEVIER-AS, GB                              15     10      3      8      7  46.67%


  Prefix               AS Path                              Aggregation Suggestion
  145.36.0.0/20        4777 2497 16509 33820   
  145.36.16.0/20       4777 2497 16509 14618 33820   
  145.36.32.0/20       4777 2497 16509 33820   
  145.36.48.0/22       4777 2497 16509 33820 + Announce - aggregate of 145.36.48.0/23 (4777 2497 16509 33820) and 145.36.50.0/23 (4777 2497 16509 33820)
  145.36.48.0/24       4777 2497 16509 33820 - Withdrawn - aggregated with 145.36.49.0/24 (4777 2497 16509 33820)
  145.36.49.0/24       4777 2497 16509 33820 - Withdrawn - aggregated with 145.36.48.0/24 (4777 2497 16509 33820)
  145.36.50.0/24       4777 2497 16509 33820 - Withdrawn - aggregated with 145.36.51.0/24 (4777 2497 16509 33820)
  145.36.51.0/24       4777 2497 16509 33820 - Withdrawn - aggregated with 145.36.50.0/24 (4777 2497 16509 33820)
  145.36.52.0/23       4777 2497 16509 33820 + Announce - aggregate of 145.36.52.0/24 (4777 2497 16509 33820) and 145.36.53.0/24 (4777 2497 16509 33820)
  145.36.52.0/24       4777 2497 16509 33820 - Withdrawn - aggregated with 145.36.53.0/24 (4777 2497 16509 33820)
  145.36.53.0/24       4777 2497 16509 33820 - Withdrawn - aggregated with 145.36.52.0/24 (4777 2497 16509 33820)
  145.36.54.0/24       4608 16509 33820       
  145.36.55.0/24       4777 2497 16509 33820   
  145.36.56.0/22       4777 2497 16509 33820 + Announce - aggregate of 145.36.56.0/23 (4777 2497 16509 33820) and 145.36.58.0/23 (4777 2497 16509 33820)
  145.36.56.0/24       4777 2497 16509 33820 - Withdrawn - aggregated with 145.36.57.0/24 (4777 2497 16509 33820)
  145.36.57.0/24       4777 2497 16509 33820 - Withdrawn - aggregated with 145.36.56.0/24 (4777 2497 16509 33820)
  145.36.58.0/24       4777 2497 16509 33820 - Withdrawn - aggregated with 145.36.59.0/24 (4777 2497 16509 33820)
  145.36.59.0/24       4777 2497 16509 33820 - Withdrawn - aggregated with 145.36.58.0/24 (4777 2497 16509 33820)

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

AS33820   15 More Specifics   15 Total Advertisements   REED-ELSEVIER-AS, GB
    145.36.0.0/20                 145.36.0.0/16
    145.36.16.0/20                145.36.0.0/16
    145.36.32.0/20                145.36.0.0/16
    145.36.48.0/24                145.36.0.0/16
    145.36.49.0/24                145.36.0.0/16
    145.36.50.0/24                145.36.0.0/16
    145.36.51.0/24                145.36.0.0/16
    145.36.52.0/24                145.36.0.0/16
    145.36.53.0/24                145.36.0.0/16
    145.36.54.0/24                145.36.0.0/16
    145.36.55.0/24                145.36.0.0/16
    145.36.56.0/24                145.36.0.0/16
    145.36.57.0/24                145.36.0.0/16
    145.36.58.0/24                145.36.0.0/16
    145.36.59.0/24                145.36.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS33820 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS33820\n             % This is the RIPE Database query service.
             % The objects are in RPSL format.
             %
             % The RIPE Database is subject to Terms and Conditions.
             % See https://docs.db.ripe.net/terms-conditions.html
             
             % Note: this output has been filtered.
             
             % Information related to 'AS33792 - AS34436'
             
             as-block:       AS33792 - AS34436
             descr:          RIPE NCC ASN block
             remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
             mnt-by:         RIPE-NCC-HM-MNT
             created:        2023-04-20T14:54:28Z
             last-modified:  2023-04-20T14:54:28Z
             source:         RIPE
             
             % Information related to 'AS33820'
             
             % Abuse contact for 'AS33820' is 'net-admin@elsevier.com'
             
             aut-num:        AS33820
             export:         to AS15695 announce AS33820
             export:         to AS3356 announce AS33820
             import:         from AS15695 accept ANY
             import:         from AS3356 accept ANY
             as-name:        REED-ELSEVIER-AS
             org:            ORG-REGP1-RIPE
             admin-c:        RETS-RIPE
             tech-c:         RETS-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         RETS-RIPE-MNT
             created:        2004-08-10T09:09:53Z
             last-modified:  2026-03-18T20:02:53Z
             source:         RIPE # Filtered
             
             organisation:   ORG-REGP1-RIPE
             org-name:       RELX GROUP PLC
             country:        GB
             org-type:       LIR
             address:        1-3 Strand
             address:        WC2N 5JR
             address:        London
             address:        UNITED KINGDOM
             phone:          +441865843117
             fax-no:         +441865843010
             mnt-ref:        RETS-RIPE-MNT
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         RETS-RIPE-MNT
             abuse-c:        RETS-RIPE
             created:        2013-09-06T10:26:28Z
             last-modified:  2020-12-16T12:42:14Z
             source:         RIPE # Filtered
             
             role:           RETS RIPE
             address:        Reed Elsevier Technology Services
             address:        The Boulevard, Langford Lane
             address:        Kidlington, OX5 1GB
             address:        UK
             abuse-mailbox:  net-admin@elsevier.com
             admin-c:        MPH16-RIPE
             tech-c:         MPH16-RIPE
             tech-c:         AWdB2-RIPE
             nic-hdl:        RETS-RIPE
             mnt-by:         RETS-RIPE-MNT
             created:        2009-03-27T14:23:30Z
             last-modified:  2013-09-09T10:09:38Z
             source:         RIPE # Filtered
             
             % This query was served by the RIPE Database Query Service version 1.121.2 (DEXTER)