Report for 2026

Name

HELSINKI City of Helsinki, FI

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.

2026 HELSINKI City of Helsinki, FI

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS20904         NETPLAZA-AS, FI

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
3352  AS2026         ORIGIN  Originate:      66304 /15.98  Transit:          0 /0.00  HELSINKI City of Helsinki, FI

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       %
30990 AS2026        HELSINKI City of Helsinki, FI                      3      0      0      3      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  37.35.81.0/24        4777 2516 1299 20904 2026   
  37.35.82.0/23        4777 2516 1299 20904 2026   
  137.163.0.0/16       4777 2516 1299 20904 2026   

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

AS2026   2 More Specifics   3 Total Advertisements   HELSINKI City of Helsinki, FI
    37.35.81.0/24                 37.35.80.0/21
    37.35.82.0/23                 37.35.80.0/21

Whois Entry

whois: 402332

IANA has recorded AS2026 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS2026\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 'AS2026 - AS2029'
             
             as-block:       AS2026 - AS2029
             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:        2018-11-22T15:27:15Z
             last-modified:  2018-11-22T15:27:15Z
             source:         RIPE
             
             % Information related to 'AS2026'
             
             % No abuse contact registered for AS2026
             
             aut-num:        AS2026
             as-name:        HELSINKI
             descr:          City of Helsinki
             admin-c:        HK6742-RIPE
             admin-c:        CNFI-RIPE
             tech-c:         HK6742-RIPE
             status:         LEGACY
             mnt-by:         CNFI-MNT
             created:        2002-08-21T16:25:44Z
             last-modified:  2025-08-15T05:25:42Z
             source:         RIPE
             
             role:           Cinia Oy - LIR Team
             address:        Ilmalantori 1, FI-00240 Helsinki, Finland
             admin-c:        HM2104-RIPE
             admin-c:        JL4684-RIPE
             tech-c:         JS11347-RIPE
             tech-c:         PL10210-RIPE
             tech-c:         JD8707-RIPE
             tech-c:         JL4684-RIPE
             tech-c:         KV3575-RIPE
             tech-c:         HS11144-RIPE
             tech-c:         JT6739-RIPE
             abuse-mailbox:  abuse@cinia.fi
             nic-hdl:        CNFI-RIPE
             mnt-by:         CNFI-MNT
             created:        2005-09-19T09:40:35Z
             last-modified:  2025-10-17T12:55:33Z
             source:         RIPE # Filtered
             
             role:           Helsingin kaupunki
             address:        City of Helsinki
             admin-c:        DH8278-RIPE
             tech-c:         DH8278-RIPE
             nic-hdl:        HK6742-RIPE
             abuse-mailbox:  abuse@hel.fi
             mnt-by:         ELISA-MNT
             mnt-by:         CNFI-MNT
             created:        2021-05-27T12:35:51Z
             last-modified:  2025-03-11T07:45:33Z
             source:         RIPE # Filtered
             
             % This query was served by the RIPE Database Query Service version 1.121.2 (BUSA)