Report for 203993

Name

STEFFANN-DC-AS - S.J.M. Steffann, NL

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 AS6447) 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.

203993 STEFFANN-DC-AS, NL

  Adjacency:     4  Upstream:     3  Downstream:     1
  Upstream Adjacent AS list
    AS6939          HURRICANE, US
    AS12414         NL-SOLCON SOLCON, NL
    AS50673         SERVERIUS-AS, NL
  Downstream Adjacent AS list
    AS8038          6CONNECT, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
40376 AS203993       ORG+TRN Originate:       1024 /22.00  Transit:        256 /24.00 STEFFANN-DC-AS, NL

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       %
27236 AS203993      STEFFANN-DC-AS, NL                                 3      2      1      2      1  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  185.54.92.0/23       6939 50673 203993      
  185.54.92.0/23       6939 203993          + Announce - aggregate of 185.54.92.0/24 (6939 203993) and 185.54.93.0/24 (6939 203993)
  185.54.92.0/24       6939 203993          - Withdrawn - aggregated with 185.54.93.0/24 (6939 203993)
  185.54.93.0/24       6939 203993          - Withdrawn - aggregated with 185.54.92.0/24 (6939 203993)

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

AS203993   1 More Specifics   1 Total Advertisements   STEFFANN-DC-AS, NL
    185.54.92.0/23                185.54.92.0/22

Whois Entry

whois: 402590

IANA has recorded AS203993 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS203993\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 'AS203940 - AS205662'
             
             as-block:       AS203940 - AS205662
             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:        2026-03-05T15:29:31Z
             last-modified:  2026-03-05T15:29:31Z
             source:         RIPE
             
             % Information related to 'AS203993'
             
             % Abuse contact for 'AS203993' is 'abuse@steffann.nl'
             
             aut-num:        AS203993
             as-name:        STEFFANN-DC-AS
             org:            ORG-SSP3-RIPE
             mp-import:      from AS12414 accept ANY
             mp-export:      to AS12414 announce AS203993:AS-ALL
             mp-import:      from AS50673 accept ANY
             mp-export:      to AS50673 announce AS203993:AS-ALL
             mp-import:      from AS57771 accept ANY
             mp-export:      to AS57771 announce ANY
             admin-c:        SJMS-RIPE
             tech-c:         SJMS-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         STEFFANN-MNT
             created:        2015-09-16T10:51:27Z
             last-modified:  2025-01-05T17:45:32Z
             source:         RIPE
             
             organisation:   ORG-SSP3-RIPE
             org-name:       S.J.M. Steffann
             country:        NL
             reg-nr:         Not Applicable
             org-type:       LIR
             address:        Tienwoningenweg 46
             address:        7312 DN
             address:        Apeldoorn
             address:        NETHERLANDS
             phone:          +31622660412
             mnt-ref:        STEFFANN-MNT
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         STEFFANN-MNT
             admin-c:        SJMS-RIPE
             abuse-c:        SJMS-RIPE
             created:        2012-01-27T14:45:47Z
             last-modified:  2026-05-13T07:34:01Z
             source:         RIPE # Filtered
             
             role:           SJM Steffann NOC contact
             address:        Tienwoningenweg 46
             address:        7312 DN Apeldoorn
             address:        The Netherlands
             admin-c:        SJMS1-RIPE
             tech-c:         SJMS1-RIPE
             abuse-mailbox:  abuse@steffann.nl
             nic-hdl:        SJMS-RIPE
             mnt-by:         STEFFANN-MNT
             created:        2012-03-06T21:01:48Z
             last-modified:  2020-12-15T15:07:54Z
             source:         RIPE # Filtered
             
             % This query was served by the RIPE Database Query Service version 1.122.1 (ABERDEEN)