Report for 28538

Name

AS28538 - Cablemas Telecomunicaciones SA de CV, MX

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.

28538 AS28538 - Cablemas Telecomunicaciones SA de CV, MX

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS18734         AS18734 - Operbes, S.A. de C.V., MX

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
19724 AS28538        ORIGIN  Originate:       3072 /20.42  Transit:          0 /0.00  AS28538 - Cablemas Telecomunicaciones SA de CV, MX

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       %
16079 AS28538       AS28538 - Cablemas Telecomunicaciones SA de C      7      2      0      5      2  28.57%


  Prefix               AS Path                              Aggregation Suggestion
  177.236.128.0/22     4777 2497 3356 18734 28538   
  177.236.128.0/23     4777 2497 3356 18734 28538 - Withdrawn - matching aggregate 177.236.128.0/22 4777 2497 3356 18734 28538
  177.236.130.0/23     4777 2497 3356 18734 28538 - Withdrawn - matching aggregate 177.236.128.0/22 4777 2497 3356 18734 28538
  177.236.165.0/24     4777 2497 3356 18734 28538   
  177.239.236.0/24     4777 2497 3356 18734 28538   
  189.215.129.0/24     4777 2497 3356 18734 28538   
  189.215.130.0/24     4777 2497 3356 18734 28538   

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

AS28538   7 More Specifics   7 Total Advertisements   AS28538 - Cablemas Telecomunicaciones SA de CV, MX
    177.236.128.0/22              177.236.0.0/14
    177.236.128.0/23              177.236.0.0/14
    177.236.130.0/23              177.236.0.0/14
    177.236.165.0/24              177.236.0.0/14
    177.239.236.0/24              177.236.0.0/14
    189.215.129.0/24              189.214.0.0/15
    189.215.130.0/24              189.214.0.0/15

Whois Entry

whois: 402603

IANA has recorded AS28538 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS28538\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.
             %  2026-06-08 00:40:03 (-03 -03:00)
             
             aut-num:     AS28538
             owner:       Cablemas Telecomunicaciones SA de CV
             ownerid:     MX-CTSC6-LACNIC
             responsible: Isaac Torres Galvan
             address:     Avenida Vasco de Quiroga, 2000, Col. Santa Fe
             address:     01210 - Alcaldía Alvaro Obregon - CX
             country:     MX
             phone:       +52 777 2410061
             owner-c:     FRL5
             routing-c:   FRL5
             abuse-c:     FRL5
             created:     20070727
             changed:     20210914
             
             nic-hdl:     FRL5
             person:      Isaac Torres Galvan
             e-mail:      ipmastercm@izzi.mx
             address:     Av. Par vialVasco de Quiroga, 2000, Col. Santa Fe
             address:     01219 - Alvaro Obregon - CX
             country:     MX
             phone:       +52  5550225413
             created:     20080804
             changed:     20260319
             
             % whois.lacnic.net accepts only direct match queries.
             % Types of queries are: POCs, ownerid, CIDR blocks, IP
             % and AS numbers.