Report for 28387

Name

AS28387 - Computadoras y Servicios Especiales 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 AS6447) 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.

28387 Computadoras y Servicios Especiales SA de CV, MX

  Adjacency:     3  Upstream:     2  Downstream:     1
  Upstream Adjacent AS list
    AS1299          TWELVE99 Arelion, fka Telia Carrier, SE
    AS32098         TRANSTELCO-INC, US
  Downstream Adjacent AS list
    AS265625        Jafica Telecomunicaciones, MX

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
10795 AS28387        ORG+TRN Originate:       9216 /18.83  Transit:       1536 /21.42 Computadoras y Servicios Especiales 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       %
10189 AS28387       Computadoras y Servicios Especiales SA de CV,     20      6      2     16      4  20.00%


  Prefix               AS Path                              Aggregation Suggestion
  45.174.84.0/22       2914 32098 28387       
  45.174.84.0/24       57866 1299 28387       
  45.174.85.0/24       6939 32098 28387       
  45.174.86.0/24       6939 32098 28387       
  45.174.87.0/24       3303 32098 28387       
  201.131.200.0/22     3257 32098 28387       
  201.131.200.0/24     3257 32098 28387     - Withdrawn - matching aggregate 201.131.200.0/22 3257 32098 28387
  201.131.201.0/24     6939 1299 28387        
  201.131.202.0/24     2914 32098 28387       
  201.131.203.0/24     6939 32098 28387       
  201.139.176.0/21     6939 1299 28387        
  201.139.176.0/24     3257 32098 28387       
  201.139.177.0/24     2914 32098 28387       
  201.139.178.0/23     3257 32098 28387     + Announce - aggregate of 201.139.178.0/24 (3257 32098 28387) and 201.139.179.0/24 (3257 32098 28387)
  201.139.178.0/24     3257 32098 28387     - Withdrawn - aggregated with 201.139.179.0/24 (3257 32098 28387)
  201.139.179.0/24     3257 32098 28387     - Withdrawn - aggregated with 201.139.178.0/24 (3257 32098 28387)
  201.139.180.0/22     2914 32098 28387       
  201.139.180.0/24     2914 1299 28387        
  201.139.181.0/24     2914 32098 28387     - Withdrawn - matching aggregate 201.139.180.0/22 2914 32098 28387
  201.139.182.0/23     3257 32098 28387     + Announce - aggregate of 201.139.182.0/24 (3257 32098 28387) and 201.139.183.0/24 (3257 32098 28387)
  201.139.182.0/24     3257 32098 28387     - Withdrawn - aggregated with 201.139.183.0/24 (3257 32098 28387)
  201.139.183.0/24     3257 32098 28387     - Withdrawn - aggregated with 201.139.182.0/24 (3257 32098 28387)

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

AS28387   8 More Specifics   11 Total Advertisements   Computadoras y Servicios Especiales SA de CV, MX
    45.174.84.0/24                45.174.84.0/22
    45.174.85.0/24                45.174.84.0/22
    45.174.86.0/24                45.174.84.0/22
    45.174.87.0/24                45.174.84.0/22
    201.131.200.0/24              201.131.200.0/22
    201.131.201.0/24              201.131.200.0/22
    201.131.202.0/24              201.131.200.0/22
    201.131.203.0/24              201.131.200.0/22

Whois Entry

whois: 402609

IANA has recorded AS28387 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS28387\n             % IP Client: 2401:2000:6660::13
              
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             %  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
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             %  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 14:04:02 (-03 -03:00)
             
             aut-num:     AS28387
             owner:       Computadoras y Servicios Especiales SA de CV
             ownerid:     MX-CYSE1-LACNIC
             responsible: Jose Antonio Padilla
             address:     HACIENDA DE LAS CARRETAS, 16, EX. HACIENDA DEL ROSARIO
             address:     02420 - DISTRITO FEDERAL - CX
             country:     MX
             phone:       +52  2226413505
             owner-c:     CSC6
             routing-c:   CSC6
             abuse-c:     CSC6
             created:     20130225
             changed:     20130225
             
             nic-hdl:     CSC6
             person:      Jose Antonio Padilla Castillo
             e-mail:      admin@blacom.com.mx
             address:     Calle Hacienda de las Carretas, 16, Ex. Hacienda del Rosario
             address:     02420 - Mexico DF - CX
             country:     MX
             phone:       +52  2226413505 [103]
             created:     20121130
             changed:     20210803
             
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