Report for 27676

Name

ALMA - Atacama Large Millimeter Array, CL

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.

27676 ALMA - Atacama Large Millimeter Array, CL

  Adjacency:     4  Upstream:     4  Downstream:     0
  Upstream Adjacent AS list
    AS20080         AMPATH - Florida International University, US
    AS11340         Red Universitaria Nacional, CL
    AS3549          LVLT-3549 - Level 3 Parent, LLC, US
    AS6471          ENTEL CHILE S.A., CL

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
17033 AS27676        ORIGIN  Originate:       4096 /20.00  Transit:          0 /0.00  ALMA - Atacama Large Millimeter Array, CL

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       %
12632 AS27676       ALMA - Atacama Large Millimeter Array, CL          9      3      0      6      3  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  139.229.132.0/24     4608 7575 11537 20080 27676   
  200.2.0.0/21         4777 2497 3356 3549 27676   
  200.2.0.0/24         4777 2497 3356 3549 27676 - Withdrawn - matching aggregate 200.2.0.0/21 4777 2497 3356 3549 27676
  200.2.1.0/24         4777 2497 3356 3549 27676 - Withdrawn - matching aggregate 200.2.0.0/21 4777 2497 3356 3549 27676
  200.2.2.0/24         4777 2497 3356 3549 27676 - Withdrawn - matching aggregate 200.2.0.0/21 4777 2497 3356 3549 27676
  200.2.3.0/24         4777 2516 3356 3549 27676   
  200.2.4.0/24         4777 2516 6762 27986 6471 27676   
  200.2.5.0/24         4608 7575 11537 20080 11340 27676   
  200.2.7.0/24         4608 7575 11537 27750 11340 27676   

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

AS27676   8 More Specifics   9 Total Advertisements   ALMA - Atacama Large Millimeter Array, CL
    139.229.132.0/24              139.229.0.0/16
    200.2.0.0/24                  200.2.0.0/21
    200.2.1.0/24                  200.2.0.0/21
    200.2.2.0/24                  200.2.0.0/21
    200.2.3.0/24                  200.2.0.0/21
    200.2.4.0/24                  200.2.0.0/21
    200.2.5.0/24                  200.2.0.0/21
    200.2.7.0/24                  200.2.0.0/21

Whois Entry

whois: 402332

IANA has recorded AS27676 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS27676\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
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             %  By submitting a whois query, you agree to use this data
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             %  2026-03-31 09:46:18 (-03 -03:00)
             
             aut-num:     AS27676
             owner:       ALMA - Atacama Large Millimeter Array
             ownerid:     CL-AALM-LACNIC
             responsible: Cristobal Achermann
             address:     AV. Alonso de Cordova, 3107, Vitacura, Santiago
             address:     - - Santiago - RM
             country:     CL
             phone:       +56  2998221843 [0000]
             owner-c:     NIO3
             routing-c:   NIO3
             abuse-c:     NIO3
             created:     20041124
             changed:     20260213
             inetnum:     200.2.0.0/21
             
             nic-hdl:     NIO3
             person:      Nicolas Ovando
             e-mail:      network@alma.cl
             address:     Av. Alonso de Cordova, 3107, ALMA Observatory
             address:     7630355 - Santiago - RM
             country:     CL
             phone:       +56  2224676191 [0000]
             created:     20081020
             changed:     20221123
             
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             % and AS numbers.