Report for 263789

Name

CORTUC S.A., 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.

263789 CORTUC S.A., AR

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS6939          HURRICANE - Hurricane Electric LLC, US
    AS174           COGENT-174 - Cogent Communications, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
27177 AS263789       ORIGIN  Originate:       2048 /21.00  Transit:          0 /0.00  CORTUC S.A., 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       %
14694 AS263789      CORTUC S.A., AR                                    5      4      1      2      3  60.00%


  Prefix               AS Path                              Aggregation Suggestion
  138.121.84.0/22      4777 2497 174 263789 263789 263789 263789   
  138.121.84.0/22      4608 4826 6939 263789 + Announce - aggregate of 138.121.84.0/23 (4608 4826 6939 263789) and 138.121.86.0/23 (4608 4826 6939 263789)
  138.121.84.0/24      4608 4826 6939 263789 - Withdrawn - aggregated with 138.121.85.0/24 (4608 4826 6939 263789)
  138.121.85.0/24      4608 4826 6939 263789 - Withdrawn - aggregated with 138.121.84.0/24 (4608 4826 6939 263789)
  138.121.86.0/24      4608 4826 6939 263789 - Withdrawn - aggregated with 138.121.87.0/24 (4608 4826 6939 263789)
  138.121.87.0/24      4608 4826 6939 263789 - Withdrawn - aggregated with 138.121.86.0/24 (4608 4826 6939 263789)

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

AS263789   4 More Specifics   5 Total Advertisements   CORTUC S.A., AR
    138.121.84.0/24               138.121.84.0/22
    138.121.85.0/24               138.121.84.0/22
    138.121.86.0/24               138.121.84.0/22
    138.121.87.0/24               138.121.84.0/22

Whois Entry

whois: 402332

IANA has recorded AS263789 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS263789\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.
             %  2026-03-31 03:20:08 (-03 -03:00)
             
             aut-num:     AS263789
             owner:       CORTUC S.A.
             ownerid:     AR-COSA91-LACNIC
             responsible: Gabriel Cortes
             address:     Juana Azurduy, 3191, -
             address:     1429 - Buenos Aires - CABA
             country:     AR
             phone:       +54  1170770000 [104]
             owner-c:     IGC10
             routing-c:   IGC10
             abuse-c:     IGC10
             created:     20150624
             changed:     20150624
             
             nic-hdl:     IGC10
             person:      Imer Gabriel Cortes
             e-mail:      gcortes@fonoglobal.com.ar
             address:     Juana Azurduy, 3191, -
             address:     1429 - CABA - CABA
             country:     AR
             phone:       +54  1170770000 [104]
             created:     20150517
             changed:     20220422
             
             % whois.lacnic.net accepts only direct match queries.
             % Types of queries are: POCs, ownerid, CIDR blocks, IP
             % and AS numbers.