Report for 263356

Name

CNT Fiber, BR

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.

263356 CNT Fiber, BR

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS21574         Century Telecom Ltda, BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
12195 AS263356       ORIGIN  Originate:       8192 /19.00  Transit:          0 /0.00  CNT Fiber, BR

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       %
 5239 AS263356      CNT Fiber, BR                                     15     12      2      5     10  66.67%


  Prefix               AS Path                              Aggregation Suggestion
  191.37.72.0/21       4777 2497 3356 21574 263356   
  191.37.72.0/22       4777 2497 3356 21574 263356 - Withdrawn - matching aggregate 191.37.72.0/21 4777 2497 3356 21574 263356
  191.37.72.0/23       4777 2497 3356 21574 263356 - Withdrawn - matching aggregate 191.37.72.0/21 4777 2497 3356 21574 263356
  191.37.72.0/22       4608 4826 6939 21574 263356 + Announce - aggregate of 191.37.72.0/23 (4608 4826 6939 21574 263356) and 191.37.74.0/23 (4608 4826 6939 21574 263356)
  191.37.72.0/24       4608 4826 6939 21574 263356 - Withdrawn - aggregated with 191.37.73.0/24 (4608 4826 6939 21574 263356)
  191.37.73.0/24       4608 4826 6939 21574 263356 - Withdrawn - aggregated with 191.37.72.0/24 (4608 4826 6939 21574 263356)
  191.37.74.0/23       4777 2497 3356 21574 263356 - Withdrawn - matching aggregate 191.37.72.0/21 4777 2497 3356 21574 263356
  191.37.74.0/24       4608 4826 6939 21574 263356 - Withdrawn - aggregated with 191.37.75.0/24 (4608 4826 6939 21574 263356)
  191.37.75.0/24       4608 4826 6939 21574 263356 - Withdrawn - aggregated with 191.37.74.0/24 (4608 4826 6939 21574 263356)
  191.37.76.0/22       4777 2497 3356 21574 263356 - Withdrawn - matching aggregate 191.37.72.0/21 4777 2497 3356 21574 263356
  191.37.76.0/23       4777 2497 3356 21574 263356 - Withdrawn - matching aggregate 191.37.72.0/21 4777 2497 3356 21574 263356
  191.37.76.0/24       4777 2497 3356 21574 263356 263356   
  191.37.77.0/24       4608 4826 6939 21574 263356   
  191.37.78.0/23       4777 2497 3356 21574 263356 - Withdrawn - matching aggregate 191.37.72.0/21 4777 2497 3356 21574 263356
  191.37.78.0/23       4608 4826 6939 21574 263356 + Announce - aggregate of 191.37.78.0/24 (4608 4826 6939 21574 263356) and 191.37.79.0/24 (4608 4826 6939 21574 263356)
  191.37.78.0/24       4608 4826 6939 21574 263356 - Withdrawn - aggregated with 191.37.79.0/24 (4608 4826 6939 21574 263356)
  191.37.79.0/24       4608 4826 6939 21574 263356 - Withdrawn - aggregated with 191.37.78.0/24 (4608 4826 6939 21574 263356)

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

AS263356   14 More Specifics   15 Total Advertisements   CNT Fiber, BR
    191.37.72.0/22                191.37.72.0/21
    191.37.72.0/23                191.37.72.0/21
    191.37.72.0/24                191.37.72.0/21
    191.37.73.0/24                191.37.72.0/21
    191.37.74.0/23                191.37.72.0/21
    191.37.74.0/24                191.37.72.0/21
    191.37.75.0/24                191.37.72.0/21
    191.37.76.0/22                191.37.72.0/21
    191.37.76.0/23                191.37.72.0/21
    191.37.76.0/24                191.37.72.0/21
    191.37.77.0/24                191.37.72.0/21
    191.37.78.0/23                191.37.72.0/21
    191.37.78.0/24                191.37.72.0/21
    191.37.79.0/24                191.37.72.0/21

Whois Entry

whois: 402332

IANA has recorded AS263356 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS263356\n             % Joint Whois - whois.lacnic.net
             %  This server accepts single ASN, IPv4 or IPv6 queries
              
             
             Query rate limit exceeded