Report for 42081

Name

ECMWF-IT, 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.

42081 ECMWF-IT, GB

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS137           ASGARR Consortium GARR, IT
    AS31638         ASN-LEPIDA, IT

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
5744  AS42081        ORIGIN  Originate:      28416 /17.21  Transit:          0 /0.00  ECMWF-IT, 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       %
23017 AS42081       ECMWF-IT, GB                                       7      2      1      6      1  14.29%


  Prefix               AS Path                              Aggregation Suggestion
  77.83.224.0/23       4777 2516 6762 137 137 137 42081   
  77.83.226.0/24       4777 2516 6762 31638 42081   
  136.156.32.0/22      4777 2516 6762 137 137 137 42081   
  136.156.40.0/21      4777 2516 6762 137 137 137 42081   
  136.156.128.0/19     4777 2516 6762 137 137 137 42081 + Announce - aggregate of 136.156.128.0/20 (4777 2516 6762 137 137 137 42081) and 136.156.144.0/20 (4777 2516 6762 137 137 137 42081)
  136.156.128.0/20     4777 2516 6762 137 137 137 42081 - Withdrawn - aggregated with 136.156.144.0/20 (4777 2516 6762 137 137 137 42081)
  136.156.144.0/20     4777 2516 6762 137 137 137 42081 - Withdrawn - aggregated with 136.156.128.0/20 (4777 2516 6762 137 137 137 42081)
  136.156.192.0/18     4777 2516 6762 137 137 137 42081   

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

AS42081   7 More Specifics   7 Total Advertisements   ECMWF-IT, GB
    77.83.224.0/23                77.83.224.0/22
    77.83.226.0/24                77.83.224.0/22
    136.156.32.0/22               136.156.0.0/16
    136.156.40.0/21               136.156.0.0/16
    136.156.128.0/20              136.156.0.0/16
    136.156.144.0/20              136.156.0.0/16
    136.156.192.0/18              136.156.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS42081 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS42081\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 'AS40960 - AS42171'
             
             as-block:       AS40960 - AS42171
             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:        2024-07-22T14:14:32Z
             last-modified:  2024-07-22T14:14:32Z
             source:         RIPE
             
             % Information related to 'AS42081'
             
             % Abuse contact for 'AS42081' is 'netsec-ext@ecmwf.int'
             
             aut-num:        AS42081
             as-name:        ecmwf-it
             org:            ORG-ECFM5-RIPE
             import:         from AS137 accept ANY
             export:         to AS137 announce AS42081
             import:         from AS8928 accept ANY
             export:         to AS8928 announce AS42081
             import:         from AS31638 accept ANY
             export:         to AS31638 announce AS42081
             admin-c:        EC10273-RIPE
             tech-c:         EC10273-RIPE
             status:         ASSIGNED
             mnt-by:         ecmwf-mnt
             mnt-by:         RIPE-NCC-END-MNT
             created:        2018-12-14T09:54:02Z
             last-modified:  2022-10-08T17:39:51Z
             source:         RIPE
             
             organisation:   ORG-ECFM5-RIPE
             org-name:       European Centre for Medium-Range Weather Forecasts (ECMWF)
             country:        GB
             org-type:       LIR
             address:        Shinfield Park
             address:        RG29AX
             address:        READING
             address:        UNITED KINGDOM
             phone:          +44 118 949 9000
             admin-c:        EC10273-RIPE
             tech-c:         EC10273-RIPE
             abuse-c:        AR49834-RIPE
             mnt-ref:        ecmwf-mnt
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         ecmwf-mnt
             created:        2018-12-13T07:09:07Z
             last-modified:  2024-02-19T14:18:18Z
             source:         RIPE # Filtered
             
             %ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
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             % Access from your host has been temporarily denied.
             % For more information, see
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             % This query was served by the RIPE Database Query Service version 1.121.2 (BUSA)