Report for 21077

Name

ISP4BAS - Specialist Computer Centres Plc, 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.

21077 ISP4BAS - Specialist Computer Centres Plc, GB

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS39545         FLUIDATA - Fluidone Ltd., GB

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
11285 AS21077        ORIGIN  Originate:       8448 /18.96  Transit:          0 /0.00  ISP4BAS - Specialist Computer Centres Plc, 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       %
 7267 AS21077       ISP4BAS - Specialist Computer Centres Plc, GB     12      7      1      6      6  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  80.86.32.0/20        4777 2516 3257 39545 21077   
  185.98.180.0/22      4777 2516 3257 39545 21077   
  185.98.180.0/24      4777 2516 3257 39545 21077 - Withdrawn - matching aggregate 185.98.180.0/22 4777 2516 3257 39545 21077
  185.98.181.0/24      4777 2516 3257 39545 21077 - Withdrawn - matching aggregate 185.98.180.0/22 4777 2516 3257 39545 21077
  185.98.182.0/24      4777 2516 3257 39545 21077 - Withdrawn - matching aggregate 185.98.180.0/22 4777 2516 3257 39545 21077
  185.106.220.0/22     4608 7575 4455 39545 21077   
  185.106.220.0/22     4777 2516 3257 39545 21077 + Announce - aggregate of 185.106.220.0/23 (4777 2516 3257 39545 21077) and 185.106.222.0/23 (4777 2516 3257 39545 21077)
  185.106.220.0/24     4777 2516 3257 39545 21077 - Withdrawn - aggregated with 185.106.221.0/24 (4777 2516 3257 39545 21077)
  185.106.221.0/24     4777 2516 3257 39545 21077 - Withdrawn - aggregated with 185.106.220.0/24 (4777 2516 3257 39545 21077)
  185.106.222.0/24     4777 2516 3257 39545 21077 - Withdrawn - aggregated with 185.106.223.0/24 (4777 2516 3257 39545 21077)
  185.106.223.0/24     4777 2516 3257 39545 21077 - Withdrawn - aggregated with 185.106.222.0/24 (4777 2516 3257 39545 21077)
  185.148.4.0/24       4608 7575 4455 39545 21077   
  193.24.28.0/24       4608 7575 4455 39545 21077   

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

AS21077   8 More Specifics   12 Total Advertisements   ISP4BAS - Specialist Computer Centres Plc, GB
    185.98.180.0/24               185.98.180.0/22
    185.98.181.0/24               185.98.180.0/22
    185.98.182.0/24               185.98.180.0/22
    185.106.220.0/24              185.106.220.0/22
    185.106.221.0/24              185.106.220.0/22
    185.106.222.0/24              185.106.220.0/22
    185.106.223.0/24              185.106.220.0/22
    185.148.4.0/24                185.148.4.0/22

Whois Entry

whois: 402603

IANA has recorded AS21077 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21077\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 'AS21004 - AS21151'
             
             as-block:       AS21004 - AS21151
             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:        2018-11-22T15:27:27Z
             last-modified:  2018-11-22T15:27:27Z
             source:         RIPE
             
             % Information related to 'AS21077'
             
             % Abuse contact for 'AS21077' is 'support@sccis.net'
             
             aut-num:        AS21077
             as-name:        ISP4BAS
             descr:          --------------------
             descr:          SCC UK Digital
             descr:          --------------------
             org:            ORG-IA63-RIPE
             admin-c:        ZJL9809-RIPE
             tech-c:         ZJL9809-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         MNT-SCCIS
             created:        2002-04-22T22:35:16Z
             last-modified:  2025-08-20T08:29:46Z
             source:         RIPE # Filtered
             
             organisation:   ORG-IA63-RIPE
             org-name:       Specialist Computer Centres Plc
             country:        GB
             reg-nr:         01428210
             org-type:       LIR
             address:        James House
                             Warwick Road
             address:        B11 2LE
             address:        Birmingham
             address:        UNITED KINGDOM
             phone:          +44 1217667000
             abuse-c:        AR17526-RIPE
             admin-c:        ZJL9809-RIPE
             admin-c:        CAD6-RIPE
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-ref:        MNT-SCCIS
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         MNT-SCCIS
             created:        2004-04-17T12:11:31Z
             last-modified:  2026-05-13T07:30:49Z
             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
             % https://docs.db.ripe.net/FAQ#why-did-i-receive-an-error-201-access-denied
             
             % This query was served by the RIPE Database Query Service version 1.122.1 (ABERDEEN)