AS Report

Report for 58305

Name

SYN-US SYN, GB

AS Adjacency Report

58305 SYN-US SYN, GB

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS23470         RELIABLESITE - ReliableSite.Net LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
25767 AS58305        ORIGIN  Originate:       2048 /21.00  Transit:          0 /0.00  SYN-US SYN, GB

Aggregation Suggestions

Filter: Aggregates, Specifics

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
10723 AS58305       SYN-US SYN, GB                                     8      6      2      4      4  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  107.161.163.0/24     4777 2516 7922 23470 58305 58305 58305   
  107.161.164.0/22     4608 7575 23470 58305 58305 58305 + Announce - aggregate of 107.161.164.0/23 (4608 7575 23470 58305 58305 58305) and 107.161.166.0/23 (4608 7575 23470 58305 58305 58305)
  107.161.164.0/24     4608 7575 23470 58305 58305 58305 - Withdrawn - aggregated with 107.161.165.0/24 (4608 7575 23470 58305 58305 58305)
  107.161.165.0/24     4608 7575 23470 58305 58305 58305 - Withdrawn - aggregated with 107.161.164.0/24 (4608 7575 23470 58305 58305 58305)
  107.161.166.0/24     4608 7575 23470 58305 58305 58305 - Withdrawn - aggregated with 107.161.167.0/24 (4608 7575 23470 58305 58305 58305)
  107.161.167.0/24     4608 7575 23470 58305 58305 58305 - Withdrawn - aggregated with 107.161.166.0/24 (4608 7575 23470 58305 58305 58305)
  107.161.172.0/23     4777 2516 7922 23470 58305 58305 58305 + Announce - aggregate of 107.161.172.0/24 (4777 2516 7922 23470 58305 58305 58305) and 107.161.173.0/24 (4777 2516 7922 23470 58305 58305 58305)
  107.161.172.0/24     4777 2516 7922 23470 58305 58305 58305 - Withdrawn - aggregated with 107.161.173.0/24 (4777 2516 7922 23470 58305 58305 58305)
  107.161.173.0/24     4777 2516 7922 23470 58305 58305 58305 - Withdrawn - aggregated with 107.161.172.0/24 (4777 2516 7922 23470 58305 58305 58305)
  155.254.63.0/24      4777 2516 7922 23470 58305 58305 58305

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

AS58305   8 More Specifics   8 Total Advertisements   SYN-US SYN, GB
    107.161.163.0/24              107.161.160.0/20
    107.161.164.0/24              107.161.160.0/20
    107.161.165.0/24              107.161.160.0/20
    107.161.166.0/24              107.161.160.0/20
    107.161.167.0/24              107.161.160.0/20
    107.161.172.0/24              107.161.160.0/20
    107.161.173.0/24              107.161.160.0/20
    155.254.63.0/24               155.254.32.0/19

Whois Entry

whois: 402332

IANA has recorded AS58305 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS58305\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 'AS58305'
             
             % Abuse contact for 'AS58305' is 'abuse@syn.one'
             
             aut-num:        AS58305
             as-name:        SYN-US
             descr:          SYN
             org:            ORG-ZL31-RIPE
             import:         from AS26548 accept ANY
             export:         to AS26548 announce AS-SYN
             import:         from AS23470 accept ANY
             export:         to AS23470 announce AS-SYN
             admin-c:        SYN16-RIPE
             tech-c:         SYN16-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         MNT-SYN
             created:        2015-01-13T09:47:50Z
             last-modified:  2025-04-14T16:22:43Z
             source:         RIPE
             
             organisation:   ORG-ZL31-RIPE
             org-name:       SYN LTD
             country:        GB
             org-type:       LIR
             address:        Crown House, 27 Old Gloucester Street
             address:        WC1N 3AX
             address:        London
             address:        UNITED KINGDOM
             phone:          +442476980698
             abuse-c:        SYN16-RIPE
             mnt-ref:        MNT-SYN
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         MNT-SYN
             created:        2015-01-12T15:01:45Z
             last-modified:  2023-04-09T14:31:26Z
             source:         RIPE # Filtered
             
             role:           SYN LTD
             address:        Crown House, 27 Old Gloucester Street
             address:        London, WC1N 3AX
             address:        UNITED KINGDOM
             abuse-mailbox:  abuse@syn.one
             nic-hdl:        SYN16-RIPE
             mnt-by:         MNT-SYN
             created:        2016-02-10T12:33:51Z
             last-modified:  2022-10-07T13:21:59Z
             source:         RIPE # Filtered
             
             % This query was served by the RIPE Database Query Service version 1.121.2 (DEXTER)

as-report v4.4 (gih) 24/02/14