Report for 58273

Name

B4RN-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.

58273 B4RN-AS, GB

  Adjacency:     4  Upstream:     4  Downstream:     0
  Upstream Adjacent AS list
    AS6939          HURRICANE - Hurricane Electric LLC, US
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS174           COGENT-174 - Cogent Communications, LLC, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
5383  AS58273        ORIGIN  Originate:      32512 /17.01  Transit:          0 /0.00  B4RN-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       %
 3050 AS58273       B4RN-AS, GB                                       48     29     11     30     18  37.50%


  Prefix               AS Path                              Aggregation Suggestion
  5.83.8.0/21          4777 2497 6461 58273 58273 58273 58273 58273 + Announce - aggregate of 5.83.8.0/22 (4777 2497 6461 58273 58273 58273 58273 58273) and 5.83.12.0/22 (4777 2497 6461 58273 58273 58273 58273 58273)
  5.83.8.0/23          4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - aggregated with 5.83.10.0/23 (4777 2497 6461 58273 58273 58273 58273 58273)
  5.83.8.0/24          4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - matching aggregate 5.83.8.0/23 4777 2497 6461 58273 58273 58273 58273 58273
  5.83.9.0/24          4608 4826 6939 58273 58273 58273   
  5.83.10.0/23         4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - aggregated with 5.83.8.0/23 (4777 2497 6461 58273 58273 58273 58273 58273)
  5.83.12.0/22         4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - aggregated with 5.83.8.0/22 (4777 2497 6461 58273 58273 58273 58273 58273)
  88.97.112.0/22       4777 2497 6461 58273 58273 58273 58273 58273   
  88.97.116.0/22       4777 2516 3356 58273 58273 58273 58273 58273   
  88.97.120.0/21       4777 2497 6461 58273 58273 58273 58273 58273   
  88.97.120.0/21       4608 4826 6939 58273 58273 58273 + Announce - aggregate of 88.97.120.0/22 (4608 4826 6939 58273 58273 58273) and 88.97.124.0/22 (4608 4826 6939 58273 58273 58273)
  88.97.120.0/22       4608 4826 6939 58273 58273 58273 - Withdrawn - aggregated with 88.97.124.0/22 (4608 4826 6939 58273 58273 58273)
  88.97.124.0/22       4608 4826 6939 58273 58273 58273 - Withdrawn - aggregated with 88.97.120.0/22 (4608 4826 6939 58273 58273 58273)
  88.97.128.0/21       4777 2497 6461 58273 58273 58273 58273 58273   
  88.97.128.0/22       4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - matching aggregate 88.97.128.0/21 4777 2497 6461 58273 58273 58273 58273 58273
  88.97.132.0/22       4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - matching aggregate 88.97.128.0/21 4777 2497 6461 58273 58273 58273 58273 58273
  88.97.136.0/21       4777 2497 3356 58273 58273 58273 58273 58273   
  88.97.136.0/21       4608 4826 6939 58273 58273 58273 + Announce - aggregate of 88.97.136.0/22 (4608 4826 6939 58273 58273 58273) and 88.97.140.0/22 (4608 4826 6939 58273 58273 58273)
  88.97.136.0/22       4608 4826 6939 58273 58273 58273 - Withdrawn - aggregated with 88.97.140.0/22 (4608 4826 6939 58273 58273 58273)
  88.97.140.0/22       4608 4826 6939 58273 58273 58273 - Withdrawn - aggregated with 88.97.136.0/22 (4608 4826 6939 58273 58273 58273)
  88.97.144.0/21       4777 2497 6461 58273 58273 58273 58273 58273 + Announce - aggregate of 88.97.144.0/22 (4777 2497 6461 58273 58273 58273 58273 58273) and 88.97.148.0/22 (4777 2497 6461 58273 58273 58273 58273 58273)
  88.97.144.0/22       4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - aggregated with 88.97.148.0/22 (4777 2497 6461 58273 58273 58273 58273 58273)
  88.97.148.0/22       4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - aggregated with 88.97.144.0/22 (4777 2497 6461 58273 58273 58273 58273 58273)
  88.97.152.0/22       4777 2497 6461 58273 58273 58273 58273 58273   
  88.97.156.0/24       4777 2497 6461 58273 58273 58273 58273 58273   
  148.252.16.0/23      4777 2497 6461 58273 58273 58273 58273 58273   
  148.252.16.0/23      4608 4826 6939 58273 58273 58273 + Announce - aggregate of 148.252.16.0/24 (4608 4826 6939 58273 58273 58273) and 148.252.17.0/24 (4608 4826 6939 58273 58273 58273)
  148.252.16.0/24      4608 4826 6939 58273 58273 58273 - Withdrawn - aggregated with 148.252.17.0/24 (4608 4826 6939 58273 58273 58273)
  148.252.17.0/24      4608 4826 6939 58273 58273 58273 - Withdrawn - aggregated with 148.252.16.0/24 (4608 4826 6939 58273 58273 58273)
  148.252.18.0/23      4777 2497 6461 58273 58273 58273 58273 58273   
  148.252.20.0/22      4777 2497 6461 58273 58273 58273 58273 58273 + Announce - aggregate of 148.252.20.0/23 (4777 2497 6461 58273 58273 58273 58273 58273) and 148.252.22.0/23 (4777 2497 6461 58273 58273 58273 58273 58273)
  148.252.20.0/23      4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - aggregated with 148.252.22.0/23 (4777 2497 6461 58273 58273 58273 58273 58273)
  148.252.22.0/23      4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - aggregated with 148.252.20.0/23 (4777 2497 6461 58273 58273 58273 58273 58273)
  148.252.24.0/21      4777 2497 6461 58273 58273 58273 58273 58273 + Announce - aggregate of 148.252.24.0/22 (4777 2497 6461 58273 58273 58273 58273 58273) and 148.252.28.0/22 (4777 2497 6461 58273 58273 58273 58273 58273)
  148.252.24.0/22      4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - aggregated with 148.252.28.0/22 (4777 2497 6461 58273 58273 58273 58273 58273)
  148.252.28.0/22      4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - aggregated with 148.252.24.0/22 (4777 2497 6461 58273 58273 58273 58273 58273)
  185.89.32.0/22       4777 2497 6461 58273 58273 58273 58273 58273   
  185.159.91.0/24      4777 2497 6461 58273 58273 58273 58273 58273   
  185.201.32.0/22      4777 2497 6461 58273 58273 58273 58273 58273 + Announce - aggregate of 185.201.32.0/23 (4777 2497 6461 58273 58273 58273 58273 58273) and 185.201.34.0/23 (4777 2497 6461 58273 58273 58273 58273 58273)
  185.201.32.0/24      4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - aggregated with 185.201.33.0/24 (4777 2497 6461 58273 58273 58273 58273 58273)
  185.201.33.0/24      4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - aggregated with 185.201.32.0/24 (4777 2497 6461 58273 58273 58273 58273 58273)
  185.201.34.0/23      4777 2497 6461 58273 58273 58273 58273 58273 - Withdrawn - aggregated with 185.201.32.0/23 (4777 2497 6461 58273 58273 58273 58273 58273)
  185.217.156.0/24     4608 7575 6461 58273 58273 58273 58273 58273   
  185.217.157.0/24     4777 2497 6461 58273 58273 58273 58273 58273   
  185.243.104.0/22     4777 2516 174 58273 58273 58273 58273 58273   
  185.243.104.0/22     4608 4826 6939 58273 58273 58273 + Announce - aggregate of 185.243.104.0/23 (4608 4826 6939 58273 58273 58273) and 185.243.106.0/23 (4608 4826 6939 58273 58273 58273)
  185.243.104.0/24     4608 4826 6939 58273 58273 58273 - Withdrawn - aggregated with 185.243.105.0/24 (4608 4826 6939 58273 58273 58273)
  185.243.105.0/24     4608 4826 6939 58273 58273 58273 - Withdrawn - aggregated with 185.243.104.0/24 (4608 4826 6939 58273 58273 58273)
  185.243.106.0/24     4608 4826 6939 58273 58273 58273 - Withdrawn - aggregated with 185.243.107.0/24 (4608 4826 6939 58273 58273 58273)
  185.243.107.0/24     4608 4826 6939 58273 58273 58273 - Withdrawn - aggregated with 185.243.106.0/24 (4608 4826 6939 58273 58273 58273)
  194.31.184.0/23      4777 2497 6461 58273 58273 58273 58273 58273   
  194.31.184.0/23      4608 4826 6939 58273 58273 58273 + Announce - aggregate of 194.31.184.0/24 (4608 4826 6939 58273 58273 58273) and 194.31.185.0/24 (4608 4826 6939 58273 58273 58273)
  194.31.184.0/24      4608 4826 6939 58273 58273 58273 - Withdrawn - aggregated with 194.31.185.0/24 (4608 4826 6939 58273 58273 58273)
  194.31.185.0/24      4608 4826 6939 58273 58273 58273 - Withdrawn - aggregated with 194.31.184.0/24 (4608 4826 6939 58273 58273 58273)
  194.31.187.0/24      4777 2516 3356 58273 58273 58273 58273 58273   
  194.113.44.0/23      4777 2516 174 58273 58273 58273 58273 58273   
  194.113.44.0/23      4608 4826 6939 58273 58273 58273 + Announce - aggregate of 194.113.44.0/24 (4608 4826 6939 58273 58273 58273) and 194.113.45.0/24 (4608 4826 6939 58273 58273 58273)
  194.113.44.0/24      4608 4826 6939 58273 58273 58273 - Withdrawn - aggregated with 194.113.45.0/24 (4608 4826 6939 58273 58273 58273)
  194.113.45.0/24      4608 4826 6939 58273 58273 58273 - Withdrawn - aggregated with 194.113.44.0/24 (4608 4826 6939 58273 58273 58273)
  194.113.46.0/23      4777 2497 6461 58273 58273 58273 58273 58273   

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

AS58273   45 More Specifics   48 Total Advertisements   B4RN-AS, GB
    5.83.8.0/23                   5.83.8.0/21
    5.83.8.0/24                   5.83.8.0/21
    5.83.9.0/24                   5.83.8.0/21
    5.83.10.0/23                  5.83.8.0/21
    5.83.12.0/22                  5.83.8.0/21
    88.97.112.0/22                88.97.0.0/16
    88.97.116.0/22                88.97.0.0/16
    88.97.120.0/21                88.97.0.0/16
    88.97.120.0/22                88.97.0.0/16
    88.97.124.0/22                88.97.0.0/16
    88.97.128.0/21                88.97.0.0/16
    88.97.128.0/22                88.97.0.0/16
    88.97.132.0/22                88.97.0.0/16
    88.97.136.0/21                88.97.0.0/16
    88.97.136.0/22                88.97.0.0/16
    88.97.140.0/22                88.97.0.0/16
    88.97.144.0/22                88.97.0.0/16
    88.97.148.0/22                88.97.0.0/16
    88.97.152.0/22                88.97.0.0/16
    88.97.156.0/24                88.97.0.0/16
    148.252.16.0/23               148.252.16.0/20
    148.252.16.0/24               148.252.16.0/20
    148.252.17.0/24               148.252.16.0/20
    148.252.18.0/23               148.252.16.0/20
    148.252.20.0/23               148.252.16.0/20
    148.252.22.0/23               148.252.16.0/20
    148.252.24.0/22               148.252.16.0/20
    148.252.28.0/22               148.252.16.0/20
    185.201.32.0/24               185.201.32.0/22
    185.201.33.0/24               185.201.32.0/22
    185.201.34.0/23               185.201.32.0/22
    185.217.156.0/24              185.217.156.0/22
    185.217.157.0/24              185.217.156.0/22
    185.243.104.0/24              185.243.104.0/22
    185.243.105.0/24              185.243.104.0/22
    185.243.106.0/24              185.243.104.0/22
    185.243.107.0/24              185.243.104.0/22
    194.31.184.0/23               194.31.184.0/22
    194.31.184.0/24               194.31.184.0/22
    194.31.185.0/24               194.31.184.0/22
    194.31.187.0/24               194.31.184.0/22
    194.113.44.0/23               194.113.44.0/22
    194.113.44.0/24               194.113.44.0/22
    194.113.45.0/24               194.113.44.0/22
    194.113.46.0/23               194.113.44.0/22

Whois Entry

whois: 402332

IANA has recorded AS58273 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS58273\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 'AS57975 - AS58367'
             
             as-block:       AS57975 - AS58367
             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:        2025-04-24T14:15:44Z
             last-modified:  2025-04-24T14:15:44Z
             source:         RIPE
             
             % Information related to 'AS58273'
             
             % Abuse contact for 'AS58273' is 'abuse@b4rn.org.uk'
             
             aut-num:        AS58273
             as-name:        B4RN-AS
             org:            ORG-BftR1-RIPE
             remarks:        Network Operations Contact:
             remarks:        noc@b4rn.org.uk
             remarks:        ABUSE REPORTS NOTICE:
             remarks:        All abuse reports for AS58273 should be
             remarks:        sent to abuse@b4rn.org.uk
             remarks:        Global Transit
             import:         from AS174 accept ANY
             export:         to AS174 announce AS-B4RN
             import:         from AS3356 accept ANY
             export:         to AS3356 announce AS-B4RN
             import:         from AS6461 accept ANY
             export:         to AS6461 announce AS-B4RN
             remarks:        Private IX Peering
             import:         from AS-LINX accept AS-LINX
             export:         to AS-LINX announce AS-B4RN
             remarks:        Customer Peering
             import:         from AS213513 accept AS213513
             export:         to AS213513 announce ANY
             admin-c:        BFRN1-RIPE
             tech-c:         BFRN1-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         B4RN-MNT
             created:        2012-06-12T15:05:35Z
             last-modified:  2025-04-30T14:26:52Z
             source:         RIPE
             
             organisation:   ORG-BftR1-RIPE
             org-name:       Broadband for the Rural North Limited.
             country:        GB
             org-type:       LIR
             address:        Station Yard, Melling
             address:        LA6 2QY
             address:        Nr Carnforth
             address:        UNITED KINGDOM
             phone:          +441524555887
             admin-c:        TOMR-RIPE
             tech-c:         TOMR-RIPE
             abuse-c:        BFRN1-RIPE
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-ref:        B4RN-MNT
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         B4RN-MNT
             created:        2012-04-11T09:52:01Z
             last-modified:  2020-12-16T13:35:09Z
             source:         RIPE # Filtered
             
             role:           B4RN Ripe Admin
             address:        B4RN
             address:        Station Yard
             address:        Melling
             address:        Nr Carnforth
             address:        Lancashire
             address:        LA6 2QY
             address:        United Kingdom
             abuse-mailbox:  abuse@b4rn.org.uk
             admin-c:        JIMC-RIPE
             admin-c:        JOEB-RIPE
             admin-c:        TOMR-RIPE
             tech-c:         JIMC-RIPE
             tech-c:         JOEB-RIPE
             tech-c:         TOMR-RIPE
             nic-hdl:        BFRN1-RIPE
             mnt-by:         B4RN-MNT
             created:        2013-12-17T10:52:31Z
             last-modified:  2023-01-13T11:40:36Z
             source:         RIPE # Filtered
             
             % This query was served by the RIPE Database Query Service version 1.121.2 (ABERDEEN)