Report for 27747

Name

Telecentro 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.

27747 Telecentro S.A., AR

  Adjacency:     7  Upstream:     4  Downstream:     3
  Upstream Adjacent AS list
    AS174           COGENT-174 - Cogent Communications, LLC, US
    AS22927         Telefonica de Argentina, AR
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS6762          SEABONE-NET TELECOM ITALIA SPARKLE S.p.A., IT
  Downstream Adjacent AS list
    AS273240        DATAWISE SA, AR
    AS13335         CLOUDFLARENET - Cloudflare, Inc., US
    AS19315         Banelco S.A., AR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
382   AS27747        ORG+TRN Originate:    1235456 /11.76  Transit:       1280 /21.68 Telecentro 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       %
  797 AS27747       Telecentro S.A., AR                              199     94     16    121     78  39.20%


  Prefix               AS Path                              Aggregation Suggestion
  168.194.180.0/22     4777 2516 6762 27747   
  181.44.0.0/14        4777 2497 3356 27747 + Announce - aggregate of 181.44.0.0/15 (4777 2497 3356 27747) and 181.46.0.0/15 (4777 2497 3356 27747)
  181.44.0.0/15        4777 2497 3356 27747 - Withdrawn - aggregated with 181.46.0.0/15 (4777 2497 3356 27747)
  181.44.0.0/20        4777 2497 3356 27747 - Withdrawn - matching aggregate 181.44.0.0/15 4777 2497 3356 27747
  181.44.16.0/20       4777 2497 174 27747    
  181.44.32.0/20       4777 2497 174 27747    
  181.44.48.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 181.44.0.0/15 4777 2497 3356 27747
  181.44.64.0/20       4777 2497 174 27747    
  181.44.68.0/24       4777 2516 6762 27747   
  181.44.80.0/20       4608 1221 4637 12956 22927 22927 22927 27747   
  181.44.96.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 181.44.0.0/15 4777 2497 3356 27747
  181.44.112.0/20      4777 2516 3356 27747   
  181.44.116.0/24      4608 1221 4637 12956 22927 22927 22927 27747   
  181.44.127.0/24      4777 2516 3356 27747 - Withdrawn - matching aggregate 181.44.112.0/20 4777 2516 3356 27747
  181.44.128.0/20      4777 2516 6762 27747   
  181.44.144.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 181.44.0.0/15 4777 2497 3356 27747
  181.44.160.0/20      4777 2497 174 27747    
  181.44.176.0/20      4777 2516 3356 27747   
  181.44.192.0/20      4608 1221 4637 12956 22927 22927 22927 27747   
  181.44.208.0/20      4777 2497 174 27747    
  181.44.224.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 181.44.0.0/15 4777 2497 3356 27747
  181.44.240.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 181.44.0.0/15 4777 2497 3356 27747
  181.45.0.0/20        4777 2497 174 27747    
  181.45.4.0/24        4777 2516 6762 27747   
  181.45.16.0/20       4777 2516 3356 27747   
  181.45.32.0/20       4777 2516 3356 27747   
  181.45.48.0/20       4777 2497 174 27747    
  181.45.64.0/19       4608 7575 2914 12956 22927 27747 + Announce - aggregate of 181.45.64.0/20 (4608 7575 2914 12956 22927 27747) and 181.45.80.0/20 (4608 7575 2914 12956 22927 27747)
  181.45.64.0/20       4608 7575 2914 12956 22927 27747 - Withdrawn - aggregated with 181.45.80.0/20 (4608 7575 2914 12956 22927 27747)
  181.45.64.0/24       4777 2516 6762 27747   
  181.45.80.0/20       4608 7575 2914 12956 22927 27747 - Withdrawn - aggregated with 181.45.64.0/20 (4608 7575 2914 12956 22927 27747)
  181.45.96.0/20       4608 7575 2914 12956 22927 27747   
  181.45.112.0/20      4777 2516 3356 27747   
  181.45.119.0/24      4777 2516 6762 27747   
  181.45.128.0/20      4777 2497 174 27747    
  181.45.144.0/20      4608 1221 4637 12956 22927 22927 22927 27747   
  181.45.160.0/20      4608 7575 2914 12956 22927 27747   
  181.45.176.0/20      4777 2516 3356 27747   
  181.45.192.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 181.44.0.0/15 4777 2497 3356 27747
  181.45.208.0/20      4777 2497 174 27747    
  181.45.224.0/20      4777 2497 174 27747    
  181.45.240.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 181.44.0.0/15 4777 2497 3356 27747
  181.45.248.0/24      4777 2516 6762 27747   
  181.46.0.0/15        4777 2497 3356 27747 - Withdrawn - aggregated with 181.44.0.0/15 (4777 2497 3356 27747)
  181.46.0.0/20        4777 2516 6762 27747   
  181.46.16.0/20       4608 1221 4637 12956 22927 22927 22927 27747   
  181.46.32.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 181.46.0.0/15 4777 2497 3356 27747
  181.46.48.0/20       4777 2516 6762 27747   
  181.46.64.0/20       4777 2497 174 27747    
  181.46.80.0/20       4608 1221 4637 12956 22927 22927 22927 27747   
  181.46.96.0/20       4777 2497 174 27747    
  181.46.112.0/20      4777 2516 3356 27747   
  181.46.128.0/20      4777 2497 174 27747    
  181.46.144.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 181.46.0.0/15 4777 2497 3356 27747
  181.46.160.0/20      4777 2516 6762 27747   
  181.46.176.0/20      4777 2516 3356 27747   
  181.46.192.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 181.46.0.0/15 4777 2497 3356 27747
  181.46.208.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 181.46.0.0/15 4777 2497 3356 27747
  181.46.209.0/24      4777 2516 6762 27747   
  181.46.224.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 181.46.0.0/15 4777 2497 3356 27747
  181.46.240.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 181.46.0.0/15 4777 2497 3356 27747
  181.47.0.0/20        4777 2497 3356 27747 - Withdrawn - matching aggregate 181.46.0.0/15 4777 2497 3356 27747
  181.47.16.0/20       4777 2516 3356 27747   
  181.47.19.0/24       4777 2516 6762 27747   
  181.47.32.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 181.46.0.0/15 4777 2497 3356 27747
  181.47.48.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 181.46.0.0/15 4777 2497 3356 27747
  181.47.64.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 181.46.0.0/15 4777 2497 3356 27747
  181.47.80.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 181.46.0.0/15 4777 2497 3356 27747
  181.47.96.0/20       4608 1221 4637 12956 22927 22927 22927 27747   
  181.47.112.0/20      4777 2516 6762 27747   
  181.47.128.0/19      4777 2497 174 27747  + Announce - aggregate of 181.47.128.0/20 (4777 2497 174 27747) and 181.47.144.0/20 (4777 2497 174 27747)
  181.47.128.0/20      4777 2497 174 27747  - Withdrawn - aggregated with 181.47.144.0/20 (4777 2497 174 27747)
  181.47.135.0/24      4777 2516 6762 27747   
  181.47.144.0/20      4777 2497 174 27747  - Withdrawn - aggregated with 181.47.128.0/20 (4777 2497 174 27747)
  181.47.160.0/20      4777 2497 174 27747    
  181.47.176.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 181.46.0.0/15 4777 2497 3356 27747
  181.47.192.0/18      4777 2497 174 27747  + Announce - aggregate of 181.47.192.0/19 (4777 2497 174 27747) and 181.47.224.0/19 (4777 2497 174 27747)
  181.47.192.0/20      4777 2497 174 27747  - Withdrawn - aggregated with 181.47.208.0/20 (4777 2497 174 27747)
  181.47.208.0/20      4777 2497 174 27747  - Withdrawn - aggregated with 181.47.192.0/20 (4777 2497 174 27747)
  181.47.224.0/20      4777 2497 174 27747  - Withdrawn - aggregated with 181.47.240.0/20 (4777 2497 174 27747)
  181.47.240.0/20      4777 2497 174 27747  - Withdrawn - aggregated with 181.47.224.0/20 (4777 2497 174 27747)
  181.47.240.0/24      4777 2497 3356 27747   
  181.47.241.0/24      4777 2516 6762 27747   
  181.47.242.0/24      4608 7575 2914 12956 22927 27747   
  181.47.243.0/24      4777 2497 174 27747  - Withdrawn - matching aggregate 181.47.240.0/20 4777 2497 174 27747
  181.47.248.0/24      4777 2516 6762 27747   
  181.47.254.0/24      4777 2516 6762 27747   
  186.18.0.0/15        4777 2497 3356 27747 + Announce - aggregate of 186.18.0.0/16 (4777 2497 3356 27747) and 186.19.0.0/16 (4777 2497 3356 27747)
  186.18.0.0/16        4777 2497 3356 27747 - Withdrawn - aggregated with 186.19.0.0/16 (4777 2497 3356 27747)
  186.18.0.0/20        4777 2497 174 27747    
  186.18.16.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 186.18.0.0/16 4777 2497 3356 27747
  186.18.32.0/20       4777 2516 6762 27747   
  186.18.48.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 186.18.0.0/16 4777 2497 3356 27747
  186.18.64.0/20       4777 2516 6762 27747   
  186.18.80.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 186.18.0.0/16 4777 2497 3356 27747
  186.18.96.0/20       4777 2516 6762 27747   
  186.18.112.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 186.18.0.0/16 4777 2497 3356 27747
  186.18.128.0/20      4777 2516 6762 27747   
  186.18.144.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 186.18.0.0/16 4777 2497 3356 27747
  186.18.160.0/20      4777 2516 6762 27747   
  186.18.176.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 186.18.0.0/16 4777 2497 3356 27747
  186.18.192.0/20      4777 2516 6762 27747   
  186.18.208.0/20      4608 1221 4637 12956 22927 22927 22927 27747   
  186.18.224.0/20      4777 2497 174 27747    
  186.18.240.0/20      4608 1221 4637 12956 22927 22927 22927 27747   
  186.19.0.0/16        4777 2497 3356 27747 - Withdrawn - aggregated with 186.18.0.0/16 (4777 2497 3356 27747)
  186.19.0.0/19        4777 2516 6762 27747 + Announce - aggregate of 186.19.0.0/20 (4777 2516 6762 27747) and 186.19.16.0/20 (4777 2516 6762 27747)
  186.19.0.0/20        4777 2516 6762 27747 - Withdrawn - aggregated with 186.19.16.0/20 (4777 2516 6762 27747)
  186.19.16.0/20       4777 2516 6762 27747 - Withdrawn - aggregated with 186.19.0.0/20 (4777 2516 6762 27747)
  186.19.32.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 186.19.0.0/16 4777 2497 3356 27747
  186.19.48.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 186.19.0.0/16 4777 2497 3356 27747
  186.19.64.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 186.19.0.0/16 4777 2497 3356 27747
  186.19.80.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 186.19.0.0/16 4777 2497 3356 27747
  186.19.96.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 186.19.0.0/16 4777 2497 3356 27747
  186.19.112.0/20      4777 2516 6762 27747   
  186.19.128.0/20      4777 2516 6762 27747   
  186.19.144.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 186.19.0.0/16 4777 2497 3356 27747
  186.19.160.0/19      4608 1221 4637 12956 22927 22927 22927 27747 + Announce - aggregate of 186.19.160.0/20 (4608 1221 4637 12956 22927 22927 22927 27747) and 186.19.176.0/20 (4608 1221 4637 12956 22927 22927 22927 27747)
  186.19.160.0/20      4608 1221 4637 12956 22927 22927 22927 27747 - Withdrawn - aggregated with 186.19.176.0/20 (4608 1221 4637 12956 22927 22927 22927 27747)
  186.19.176.0/20      4608 1221 4637 12956 22927 22927 22927 27747 - Withdrawn - aggregated with 186.19.160.0/20 (4608 1221 4637 12956 22927 22927 22927 27747)
  186.19.192.0/20      4777 2497 174 27747    
  186.19.208.0/21      4608 1221 4637 12956 22927 22927 22927 27747   
  186.19.216.0/23      4608 1221 4637 12956 22927 22927 22927 27747 + Announce - aggregate of 186.19.216.0/24 (4608 1221 4637 12956 22927 22927 22927 27747) and 186.19.217.0/24 (4608 1221 4637 12956 22927 22927 22927 27747)
  186.19.216.0/24      4608 1221 4637 12956 22927 22927 22927 27747 - Withdrawn - aggregated with 186.19.217.0/24 (4608 1221 4637 12956 22927 22927 22927 27747)
  186.19.217.0/24      4608 1221 4637 12956 22927 22927 22927 27747 - Withdrawn - aggregated with 186.19.216.0/24 (4608 1221 4637 12956 22927 22927 22927 27747)
  186.19.220.0/22      4608 1221 4637 12956 22927 22927 22927 27747   
  186.19.224.0/20      4608 1221 4637 12956 22927 22927 22927 27747   
  186.19.240.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 186.19.0.0/16 4777 2497 3356 27747
  186.22.0.0/15        4777 2497 3356 27747   
  186.22.0.0/20        4777 2516 3356 27747   
  186.22.16.0/20       4777 2516 6762 27747   
  186.22.32.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 186.22.0.0/15 4777 2497 3356 27747
  186.22.48.0/20       4777 2516 6762 27747   
  186.22.48.0/21       4777 2516 6762 27747 - Withdrawn - matching aggregate 186.22.48.0/20 4777 2516 6762 27747
  186.22.64.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 186.22.0.0/15 4777 2497 3356 27747
  186.22.80.0/20       4777 2516 3356 27747   
  186.22.96.0/20       4608 1221 4637 12956 22927 22927 22927 27747   
  186.22.112.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 186.22.0.0/15 4777 2497 3356 27747
  186.22.128.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 186.22.0.0/15 4777 2497 3356 27747
  186.22.144.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 186.22.0.0/15 4777 2497 3356 27747
  186.22.160.0/20      4777 2497 174 27747    
  186.22.176.0/20      4608 1221 4637 12956 22927 22927 22927 27747   
  186.22.192.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 186.22.0.0/15 4777 2497 3356 27747
  186.22.208.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 186.22.0.0/15 4777 2497 3356 27747
  186.22.224.0/19      4777 2516 6762 27747 + Announce - aggregate of 186.22.224.0/20 (4777 2516 6762 27747) and 186.22.240.0/20 (4777 2516 6762 27747)
  186.22.224.0/20      4777 2516 6762 27747 - Withdrawn - aggregated with 186.22.240.0/20 (4777 2516 6762 27747)
  186.22.225.0/24      4777 2516 3356 27747   
  186.22.240.0/20      4777 2516 6762 27747 - Withdrawn - aggregated with 186.22.224.0/20 (4777 2516 6762 27747)
  186.23.0.0/20        4608 7575 2914 12956 22927 27747   
  186.23.16.0/20       4777 2516 6762 27747   
  186.23.32.0/20       4777 2497 174 27747    
  186.23.48.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 186.22.0.0/15 4777 2497 3356 27747
  186.23.64.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 186.22.0.0/15 4777 2497 3356 27747
  186.23.80.0/20       4777 2516 6762 27747   
  186.23.96.0/20       4777 2516 6762 27747   
  186.23.112.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 186.22.0.0/15 4777 2497 3356 27747
  186.23.128.0/19      4777 2516 6762 27747 + Announce - aggregate of 186.23.128.0/20 (4777 2516 6762 27747) and 186.23.144.0/20 (4777 2516 6762 27747)
  186.23.128.0/20      4777 2516 6762 27747 - Withdrawn - aggregated with 186.23.144.0/20 (4777 2516 6762 27747)
  186.23.144.0/20      4777 2516 6762 27747 - Withdrawn - aggregated with 186.23.128.0/20 (4777 2516 6762 27747)
  186.23.144.0/24      4608 7575 6461 12956 22927 27747   
  186.23.160.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 186.22.0.0/15 4777 2497 3356 27747
  186.23.176.0/20      4777 2516 6762 27747   
  186.23.192.0/19      4777 2497 174 27747  + Announce - aggregate of 186.23.192.0/20 (4777 2497 174 27747) and 186.23.208.0/20 (4777 2497 174 27747)
  186.23.192.0/20      4777 2497 174 27747  - Withdrawn - aggregated with 186.23.208.0/20 (4777 2497 174 27747)
  186.23.208.0/20      4777 2497 174 27747  - Withdrawn - aggregated with 186.23.192.0/20 (4777 2497 174 27747)
  186.23.224.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 186.22.0.0/15 4777 2497 3356 27747
  186.23.240.0/20      4777 2497 174 27747    
  186.23.252.0/24      4777 2516 6762 27747   
  186.23.255.0/24      4777 2516 6762 27747   
  190.55.0.0/16        4777 2497 3356 27747 + Announce - aggregate of 190.55.0.0/17 (4777 2497 3356 27747) and 190.55.128.0/17 (4777 2497 3356 27747)
  190.55.0.0/18        4777 2497 3356 27747 - Withdrawn - aggregated with 190.55.64.0/18 (4777 2497 3356 27747)
  190.55.0.0/20        4777 2497 3356 27747 - Withdrawn - matching aggregate 190.55.0.0/18 4777 2497 3356 27747
  190.55.16.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 190.55.0.0/18 4777 2497 3356 27747
  190.55.32.0/20       4777 2516 6762 27747   
  190.55.40.0/24       4777 2516 6762 27747 - Withdrawn - matching aggregate 190.55.32.0/20 4777 2516 6762 27747
  190.55.48.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 190.55.0.0/18 4777 2497 3356 27747
  190.55.60.0/24       4777 2516 6762 27747   
  190.55.62.0/23       4777 2516 6762 27747 + Announce - aggregate of 190.55.62.0/24 (4777 2516 6762 27747) and 190.55.63.0/24 (4777 2516 6762 27747)
  190.55.62.0/24       4777 2516 6762 27747 - Withdrawn - aggregated with 190.55.63.0/24 (4777 2516 6762 27747)
  190.55.63.0/24       4777 2516 6762 27747 - Withdrawn - aggregated with 190.55.62.0/24 (4777 2516 6762 27747)
  190.55.64.0/18       4777 2497 3356 27747 - Withdrawn - aggregated with 190.55.0.0/18 (4777 2497 3356 27747)
  190.55.64.0/20       4608 1221 4637 12956 22927 22927 22927 27747   
  190.55.80.0/20       4777 2497 3356 27747 - Withdrawn - matching aggregate 190.55.64.0/18 4777 2497 3356 27747
  190.55.96.0/20       4608 7575 2914 12956 22927 27747   
  190.55.112.0/20      4777 2516 6762 27747   
  190.55.128.0/18      4777 2497 3356 27747 - Withdrawn - aggregated with 190.55.192.0/18 (4777 2497 3356 27747)
  190.55.128.0/20      4777 2516 3356 27747   
  190.55.144.0/20      4777 2497 174 27747    
  190.55.154.0/24      4777 2516 6762 27747   
  190.55.160.0/20      4777 2497 174 27747    
  190.55.176.0/20      4608 7575 2914 12956 22927 27747   
  190.55.192.0/18      4777 2497 3356 27747 - Withdrawn - aggregated with 190.55.128.0/18 (4777 2497 3356 27747)
  190.55.192.0/20      4777 2497 174 27747    
  190.55.208.0/20      4608 1221 4637 12956 22927 22927 22927 27747   
  190.55.224.0/20      4777 2497 174 27747    
  190.55.240.0/20      4777 2516 6762 27747   
  190.55.248.0/24      4777 2516 6762 27747 - Withdrawn - matching aggregate 190.55.240.0/20 4777 2516 6762 27747
  190.55.252.0/24      4777 2516 6762 27747 - Withdrawn - matching aggregate 190.55.240.0/20 4777 2516 6762 27747
  200.115.192.0/18     4777 2497 3356 27747 + Announce - aggregate of 200.115.192.0/19 (4777 2497 3356 27747) and 200.115.224.0/19 (4777 2497 3356 27747)
  200.115.192.0/20     4777 2497 3356 27747 - Withdrawn - aggregated with 200.115.208.0/20 (4777 2497 3356 27747)
  200.115.192.0/23     4777 2516 6762 27747 + Announce - aggregate of 200.115.192.0/24 (4777 2516 6762 27747) and 200.115.193.0/24 (4777 2516 6762 27747)
  200.115.192.0/24     4777 2516 6762 27747 - Withdrawn - aggregated with 200.115.193.0/24 (4777 2516 6762 27747)
  200.115.193.0/24     4777 2516 6762 27747 - Withdrawn - aggregated with 200.115.192.0/24 (4777 2516 6762 27747)
  200.115.194.0/24     4777 2516 6762 27747   
  200.115.203.0/24     4777 2516 6762 27747   
  200.115.208.0/20     4777 2497 3356 27747 - Withdrawn - aggregated with 200.115.192.0/20 (4777 2497 3356 27747)
  200.115.224.0/20     4777 2497 3356 27747 - Withdrawn - aggregated with 200.115.240.0/20 (4777 2497 3356 27747)
  200.115.240.0/20     4777 2497 3356 27747 - Withdrawn - aggregated with 200.115.224.0/20 (4777 2497 3356 27747)
  200.115.254.0/24     4777 2516 6762 27747   
  200.125.64.0/18      4777 2497 3356 27747 + Announce - aggregate of 200.125.64.0/19 (4777 2497 3356 27747) and 200.125.96.0/19 (4777 2497 3356 27747)
  200.125.64.0/19      4777 2497 3356 27747 - Withdrawn - aggregated with 200.125.96.0/19 (4777 2497 3356 27747)
  200.125.64.0/20      4777 2516 3356 27747   
  200.125.80.0/20      4777 2497 174 27747    
  200.125.96.0/19      4777 2497 3356 27747 - Withdrawn - aggregated with 200.125.64.0/19 (4777 2497 3356 27747)
  200.125.96.0/20      4777 2497 3356 27747 - Withdrawn - matching aggregate 200.125.96.0/19 4777 2497 3356 27747

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

AS27747   183 More Specifics   199 Total Advertisements   Telecentro S.A., AR
    181.44.0.0/20                 181.44.0.0/15
    181.44.16.0/20                181.44.0.0/15
    181.44.32.0/20                181.44.0.0/15
    181.44.48.0/20                181.44.0.0/15
    181.44.64.0/20                181.44.0.0/15
    181.44.68.0/24                181.44.0.0/15
    181.44.80.0/20                181.44.0.0/15
    181.44.96.0/20                181.44.0.0/15
    181.44.112.0/20               181.44.0.0/15
    181.44.116.0/24               181.44.0.0/15
    181.44.127.0/24               181.44.0.0/15
    181.44.128.0/20               181.44.0.0/15
    181.44.144.0/20               181.44.0.0/15
    181.44.160.0/20               181.44.0.0/15
    181.44.176.0/20               181.44.0.0/15
    181.44.192.0/20               181.44.0.0/15
    181.44.208.0/20               181.44.0.0/15
    181.44.224.0/20               181.44.0.0/15
    181.44.240.0/20               181.44.0.0/15
    181.45.0.0/20                 181.44.0.0/15
    181.45.4.0/24                 181.44.0.0/15
    181.45.16.0/20                181.44.0.0/15
    181.45.32.0/20                181.44.0.0/15
    181.45.48.0/20                181.44.0.0/15
    181.45.64.0/20                181.44.0.0/15
    181.45.64.0/24                181.44.0.0/15
    181.45.80.0/20                181.44.0.0/15
    181.45.96.0/20                181.44.0.0/15
    181.45.112.0/20               181.44.0.0/15
    181.45.119.0/24               181.44.0.0/15
    181.45.128.0/20               181.44.0.0/15
    181.45.144.0/20               181.44.0.0/15
    181.45.160.0/20               181.44.0.0/15
    181.45.176.0/20               181.44.0.0/15
    181.45.192.0/20               181.44.0.0/15
    181.45.208.0/20               181.44.0.0/15
    181.45.224.0/20               181.44.0.0/15
    181.45.240.0/20               181.44.0.0/15
    181.45.248.0/24               181.44.0.0/15
    181.46.0.0/20                 181.46.0.0/15
    181.46.16.0/20                181.46.0.0/15
    181.46.32.0/20                181.46.0.0/15
    181.46.48.0/20                181.46.0.0/15
    181.46.64.0/20                181.46.0.0/15
    181.46.80.0/20                181.46.0.0/15
    181.46.96.0/20                181.46.0.0/15
    181.46.112.0/20               181.46.0.0/15
    181.46.128.0/20               181.46.0.0/15
    181.46.144.0/20               181.46.0.0/15
    181.46.160.0/20               181.46.0.0/15
    181.46.176.0/20               181.46.0.0/15
    181.46.192.0/20               181.46.0.0/15
    181.46.208.0/20               181.46.0.0/15
    181.46.209.0/24               181.46.0.0/15
    181.46.224.0/20               181.46.0.0/15
    181.46.240.0/20               181.46.0.0/15
    181.47.0.0/20                 181.46.0.0/15
    181.47.16.0/20                181.46.0.0/15
    181.47.19.0/24                181.46.0.0/15
    181.47.32.0/20                181.46.0.0/15
    181.47.48.0/20                181.46.0.0/15
    181.47.64.0/20                181.46.0.0/15
    181.47.80.0/20                181.46.0.0/15
    181.47.96.0/20                181.46.0.0/15
    181.47.112.0/20               181.46.0.0/15
    181.47.128.0/20               181.46.0.0/15
    181.47.135.0/24               181.46.0.0/15
    181.47.144.0/20               181.46.0.0/15
    181.47.160.0/20               181.46.0.0/15
    181.47.176.0/20               181.46.0.0/15
    181.47.192.0/20               181.46.0.0/15
    181.47.208.0/20               181.46.0.0/15
    181.47.224.0/20               181.46.0.0/15
    181.47.240.0/20               181.46.0.0/15
    181.47.240.0/24               181.46.0.0/15
    181.47.241.0/24               181.46.0.0/15
    181.47.242.0/24               181.46.0.0/15
    181.47.243.0/24               181.46.0.0/15
    181.47.248.0/24               181.46.0.0/15
    181.47.254.0/24               181.46.0.0/15
    186.18.0.0/20                 186.18.0.0/16
    186.18.16.0/20                186.18.0.0/16
    186.18.32.0/20                186.18.0.0/16
    186.18.48.0/20                186.18.0.0/16
    186.18.64.0/20                186.18.0.0/16
    186.18.80.0/20                186.18.0.0/16
    186.18.96.0/20                186.18.0.0/16
    186.18.112.0/20               186.18.0.0/16
    186.18.128.0/20               186.18.0.0/16
    186.18.144.0/20               186.18.0.0/16
    186.18.160.0/20               186.18.0.0/16
    186.18.176.0/20               186.18.0.0/16
    186.18.192.0/20               186.18.0.0/16
    186.18.208.0/20               186.18.0.0/16
    186.18.224.0/20               186.18.0.0/16
    186.18.240.0/20               186.18.0.0/16
    186.19.0.0/20                 186.19.0.0/16
    186.19.16.0/20                186.19.0.0/16
    186.19.32.0/20                186.19.0.0/16
    186.19.48.0/20                186.19.0.0/16
    186.19.64.0/20                186.19.0.0/16
    186.19.80.0/20                186.19.0.0/16
    186.19.96.0/20                186.19.0.0/16
    186.19.112.0/20               186.19.0.0/16
    186.19.128.0/20               186.19.0.0/16
    186.19.144.0/20               186.19.0.0/16
    186.19.160.0/20               186.19.0.0/16
    186.19.176.0/20               186.19.0.0/16
    186.19.192.0/20               186.19.0.0/16
    186.19.208.0/21               186.19.0.0/16
    186.19.216.0/24               186.19.0.0/16
    186.19.217.0/24               186.19.0.0/16
    186.19.220.0/22               186.19.0.0/16
    186.19.224.0/20               186.19.0.0/16
    186.19.240.0/20               186.19.0.0/16
    186.22.0.0/20                 186.22.0.0/15
    186.22.16.0/20                186.22.0.0/15
    186.22.32.0/20                186.22.0.0/15
    186.22.48.0/20                186.22.0.0/15
    186.22.48.0/21                186.22.0.0/15
    186.22.64.0/20                186.22.0.0/15
    186.22.80.0/20                186.22.0.0/15
    186.22.96.0/20                186.22.0.0/15
    186.22.112.0/20               186.22.0.0/15
    186.22.128.0/20               186.22.0.0/15
    186.22.144.0/20               186.22.0.0/15
    186.22.160.0/20               186.22.0.0/15
    186.22.176.0/20               186.22.0.0/15
    186.22.192.0/20               186.22.0.0/15
    186.22.208.0/20               186.22.0.0/15
    186.22.224.0/20               186.22.0.0/15
    186.22.225.0/24               186.22.0.0/15
    186.22.240.0/20               186.22.0.0/15
    186.23.0.0/20                 186.22.0.0/15
    186.23.16.0/20                186.22.0.0/15
    186.23.32.0/20                186.22.0.0/15
    186.23.48.0/20                186.22.0.0/15
    186.23.64.0/20                186.22.0.0/15
    186.23.80.0/20                186.22.0.0/15
    186.23.96.0/20                186.22.0.0/15
    186.23.112.0/20               186.22.0.0/15
    186.23.128.0/20               186.22.0.0/15
    186.23.144.0/20               186.22.0.0/15
    186.23.144.0/24               186.22.0.0/15
    186.23.160.0/20               186.22.0.0/15
    186.23.176.0/20               186.22.0.0/15
    186.23.192.0/20               186.22.0.0/15
    186.23.208.0/20               186.22.0.0/15
    186.23.224.0/20               186.22.0.0/15
    186.23.240.0/20               186.22.0.0/15
    186.23.252.0/24               186.22.0.0/15
    186.23.255.0/24               186.22.0.0/15
    190.55.0.0/20                 190.55.0.0/18
    190.55.16.0/20                190.55.0.0/18
    190.55.32.0/20                190.55.0.0/18
    190.55.40.0/24                190.55.0.0/18
    190.55.48.0/20                190.55.0.0/18
    190.55.60.0/24                190.55.0.0/18
    190.55.62.0/24                190.55.0.0/18
    190.55.63.0/24                190.55.0.0/18
    190.55.64.0/20                190.55.64.0/18
    190.55.80.0/20                190.55.64.0/18
    190.55.96.0/20                190.55.64.0/18
    190.55.112.0/20               190.55.64.0/18
    190.55.128.0/20               190.55.128.0/18
    190.55.144.0/20               190.55.128.0/18
    190.55.154.0/24               190.55.128.0/18
    190.55.160.0/20               190.55.128.0/18
    190.55.176.0/20               190.55.128.0/18
    190.55.192.0/20               190.55.192.0/18
    190.55.208.0/20               190.55.192.0/18
    190.55.224.0/20               190.55.192.0/18
    190.55.240.0/20               190.55.192.0/18
    190.55.248.0/24               190.55.192.0/18
    190.55.252.0/24               190.55.192.0/18
    200.115.192.0/24              200.115.192.0/20
    200.115.193.0/24              200.115.192.0/20
    200.115.194.0/24              200.115.192.0/20
    200.115.203.0/24              200.115.192.0/20
    200.115.254.0/24              200.115.240.0/20
    200.125.64.0/20               200.125.64.0/19
    200.125.80.0/20               200.125.64.0/19
    200.125.96.0/20               200.125.96.0/19

Whois Entry

whois: 402332

IANA has recorded AS27747 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.net -r "AS27747\n             % [whois.apnic.net]
             % Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html
             
             %ERROR:101: no entries found
             %
             % No entries found in source APNIC,JPNIC,KRNIC,TWNIC,IDNIC,IRINN-GRS.
             
             % This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU4)