Report for 27870

Name

AS27870 - CSCOM, AR

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.

27870 AS27870 - CSCOM, AR

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS11014         AS11014 - CPS, AR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
19709 AS27870        ORIGIN  Originate:       3072 /20.42  Transit:          0 /0.00  AS27870 - CSCOM, AR

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       %
10014 AS27870       AS27870 - CSCOM, AR                               12      8      4      8      4  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  179.60.220.0/23      4777 2516 6762 11014 27870 27870 27870 27870 + Announce - aggregate of 179.60.220.0/24 (4777 2516 6762 11014 27870 27870 27870 27870) and 179.60.221.0/24 (4777 2516 6762 11014 27870 27870 27870 27870)
  179.60.220.0/24      4777 2516 6762 11014 27870 27870 27870 27870 - Withdrawn - aggregated with 179.60.221.0/24 (4777 2516 6762 11014 27870 27870 27870 27870)
  179.60.221.0/24      4777 2516 6762 11014 27870 27870 27870 27870 - Withdrawn - aggregated with 179.60.220.0/24 (4777 2516 6762 11014 27870 27870 27870 27870)
  179.60.222.0/23      4777 2516 6762 11014 27870 + Announce - aggregate of 179.60.222.0/24 (4777 2516 6762 11014 27870) and 179.60.223.0/24 (4777 2516 6762 11014 27870)
  179.60.222.0/24      4777 2516 6762 11014 27870 - Withdrawn - aggregated with 179.60.223.0/24 (4777 2516 6762 11014 27870)
  179.60.223.0/24      4777 2516 6762 11014 27870 - Withdrawn - aggregated with 179.60.222.0/24 (4777 2516 6762 11014 27870)
  200.110.208.0/24     4777 2516 3257 52320 11014 27870 27870 27870 27870   
  200.110.209.0/24     4777 2516 6762 11014 27870 27870 27870   
  200.110.210.0/24     4777 2516 6762 11014 27870   
  200.110.211.0/24     4777 2516 6762 11014 27870 27870   
  200.110.212.0/23     4777 6939 52320 11014 27870 27870 + Announce - aggregate of 200.110.212.0/24 (4777 6939 52320 11014 27870 27870) and 200.110.213.0/24 (4777 6939 52320 11014 27870 27870)
  200.110.212.0/24     4777 6939 52320 11014 27870 27870 - Withdrawn - aggregated with 200.110.213.0/24 (4777 6939 52320 11014 27870 27870)
  200.110.213.0/24     4777 6939 52320 11014 27870 27870 - Withdrawn - aggregated with 200.110.212.0/24 (4777 6939 52320 11014 27870 27870)
  200.110.214.0/23     4777 6939 52320 11014 27870 + Announce - aggregate of 200.110.214.0/24 (4777 6939 52320 11014 27870) and 200.110.215.0/24 (4777 6939 52320 11014 27870)
  200.110.214.0/24     4777 6939 52320 11014 27870 - Withdrawn - aggregated with 200.110.215.0/24 (4777 6939 52320 11014 27870)
  200.110.215.0/24     4777 6939 52320 11014 27870 - Withdrawn - aggregated with 200.110.214.0/24 (4777 6939 52320 11014 27870)

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

AS27870   12 More Specifics   12 Total Advertisements   AS27870 - CSCOM, AR
    179.60.220.0/24               179.60.220.0/22
    179.60.221.0/24               179.60.220.0/22
    179.60.222.0/24               179.60.220.0/22
    179.60.223.0/24               179.60.220.0/22
    200.110.208.0/24              200.110.208.0/21
    200.110.209.0/24              200.110.208.0/21
    200.110.210.0/24              200.110.208.0/21
    200.110.211.0/24              200.110.208.0/21
    200.110.212.0/24              200.110.208.0/21
    200.110.213.0/24              200.110.208.0/21
    200.110.214.0/24              200.110.208.0/21
    200.110.215.0/24              200.110.208.0/21

Whois Entry

whois: 402609

IANA has recorded AS27870 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS27870\n             % IP Client: 2401:2000:6660::13
              
             % Joint Whois - whois.lacnic.net
             %  This server accepts single ASN, IPv4 or IPv6 queries
             
             % LACNIC resource: whois.lacnic.net
             
             
             % Copyright LACNIC lacnic.net
             %  The data below is provided for information purposes
             %  and to assist persons in obtaining information about or
             %  related to AS and IP numbers registrations
             %  By submitting a whois query, you agree to use this data
             %  only for lawful purposes.
             %  2026-06-11 16:22:12 (-03 -03:00)
             
             aut-num:     AS27870
             owner:       FABRONI CLAUDIO ANTONIO
             ownerid:     AR-CSCO2-LACNIC
             responsible: Claudio Fabroni
             address:     Av. Vte. Lopez, 2745, -
             address:     B1878DWB - Quilmes - BA
             country:     AR
             phone:       +54  52764061 [0000]
             owner-c:     CLF
             routing-c:   CLF
             abuse-c:     CLF
             created:     20061110
             changed:     20061110
             
             nic-hdl:     CLF
             person:      Claudio Fabroni
             e-mail:      claudiof@cscom.com.ar
             address:     Av. Vte. Lopez, 2745, 
             address:     B1878BWB - Quilmes - BA
             country:     AR
             phone:       +54 11 4254-7352
             created:     20021123
             changed:     20170929
             
             % whois.lacnic.net accepts only direct match queries.
             % Types of queries are: POCs, ownerid, CIDR blocks, IP
             % and AS numbers.