Report for 51001

Name

cielo - CIELO SRL, IT

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.

51001 cielo - CIELO SRL, IT

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS6762          SEABONE-NET - TELECOM ITALIA SPARKLE S.p.A., IT

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
36677 AS51001        ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  cielo - CIELO SRL, IT

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       %
13103 AS51001       cielo - CIELO SRL, IT                              4      4      1      1      3  75.00%


  Prefix               AS Path                              Aggregation Suggestion
  185.158.236.0/22     4777 2516 6762 51001 + Announce - aggregate of 185.158.236.0/23 (4777 2516 6762 51001) and 185.158.238.0/23 (4777 2516 6762 51001)
  185.158.236.0/24     4777 2516 6762 51001 - Withdrawn - aggregated with 185.158.237.0/24 (4777 2516 6762 51001)
  185.158.237.0/24     4777 2516 6762 51001 - Withdrawn - aggregated with 185.158.236.0/24 (4777 2516 6762 51001)
  185.158.238.0/24     4777 2516 6762 51001 - Withdrawn - aggregated with 185.158.239.0/24 (4777 2516 6762 51001)
  185.158.239.0/24     4777 2516 6762 51001 - Withdrawn - aggregated with 185.158.238.0/24 (4777 2516 6762 51001)

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

AS51001   4 More Specifics   4 Total Advertisements   cielo - CIELO SRL, IT
    185.158.236.0/24              185.158.236.0/22
    185.158.237.0/24              185.158.236.0/22
    185.158.238.0/24              185.158.236.0/22
    185.158.239.0/24              185.158.236.0/22

Whois Entry

whois: 402617

IANA has recorded AS51001 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS51001\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 'AS50893 - AS51311'
             
             as-block:       AS50893 - AS51311
             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:        2024-12-10T14:54:30Z
             last-modified:  2024-12-10T14:54:30Z
             source:         RIPE
             
             % Information related to 'AS51001'
             
             % Abuse contact for 'AS51001' is 'info@cielo.io'
             
             aut-num:        AS51001
             as-name:        cielo
             org:            ORG-CS420-RIPE
             import:         from AS12874 accept ANY
             export:         to AS12874 announce AS51001
             import:         from AS6762 accept ANY
             export:         to AS6762 announce AS51001
             import:         from AS61968 accept ANY
             export:         to AS61968 announce AS51001
             import:         from AS9002 accept ANY
             export:         to AS9002 announce AS51001
             admin-c:        CS13714-RIPE
             tech-c:         CS13714-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         it-cielo-1-mnt
             created:        2016-07-08T10:23:53Z
             last-modified:  2025-08-27T09:56:03Z
             source:         RIPE
             
             organisation:   ORG-CS420-RIPE
             org-name:       CIELO SRL
             country:        IT
             reg-nr:         09428390968
             org-type:       LIR
             address:        Via Kennedy, 84
             address:        27058
             address:        Voghera
             address:        ITALY
             phone:          +390383644311
             admin-c:        CS13714-RIPE
             tech-c:         CS13714-RIPE
             abuse-c:        AR36881-RIPE
             mnt-ref:        it-cielo-1-mnt
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         it-cielo-1-mnt
             created:        2016-07-06T07:33:32Z
             last-modified:  2026-05-13T07:24:05Z
             source:         RIPE # Filtered
             
             %ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
             %
             % Queries from your IP address have passed the daily limit of controlled objects.
             % 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)