Report for 16973

Name

T-Four Services S.A, CR

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.

16973 T-Four Services S.A, CR

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS13335         CLOUDFLARENET - Cloudflare, Inc., US
    AS52263         Telecable Economico S.A., CR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
14202 AS16973        ORIGIN  Originate:       5888 /19.48  Transit:          0 /0.00  T-Four Services S.A, CR

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       %
 5787 AS16973       T-Four Services S.A, CR                           13     10      2      5      8  61.54%


  Prefix               AS Path                              Aggregation Suggestion
  168.205.64.0/22      4777 2497 3257 52263 16973 16973 16973   
  168.205.64.0/23      4777 13335 16973     + Announce - aggregate of 168.205.64.0/24 (4777 13335 16973) and 168.205.65.0/24 (4777 13335 16973)
  168.205.64.0/24      4777 13335 16973     - Withdrawn - aggregated with 168.205.65.0/24 (4777 13335 16973)
  168.205.65.0/24      4777 13335 16973     - Withdrawn - aggregated with 168.205.64.0/24 (4777 13335 16973)
  168.205.66.0/24      4777 13335 16973       
  190.4.88.0/21        4777 2497 3257 52263 16973 16973 16973   
  190.4.88.0/21        4777 13335 16973     + Announce - aggregate of 190.4.88.0/22 (4777 13335 16973) and 190.4.92.0/22 (4777 13335 16973)
  190.4.88.0/24        4777 13335 16973     - Withdrawn - aggregated with 190.4.89.0/24 (4777 13335 16973)
  190.4.89.0/24        4777 13335 16973     - Withdrawn - aggregated with 190.4.88.0/24 (4777 13335 16973)
  190.4.90.0/24        4777 13335 16973     - Withdrawn - aggregated with 190.4.91.0/24 (4777 13335 16973)
  190.4.91.0/24        4777 13335 16973     - Withdrawn - aggregated with 190.4.90.0/24 (4777 13335 16973)
  190.4.92.0/24        4777 13335 16973     - Withdrawn - aggregated with 190.4.93.0/24 (4777 13335 16973)
  190.4.93.0/24        4777 13335 16973     - Withdrawn - aggregated with 190.4.92.0/24 (4777 13335 16973)
  190.4.94.0/24        4777 13335 16973     - Withdrawn - aggregated with 190.4.95.0/24 (4777 13335 16973)
  190.4.95.0/24        4777 13335 16973     - Withdrawn - aggregated with 190.4.94.0/24 (4777 13335 16973)

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

AS16973   11 More Specifics   13 Total Advertisements   T-Four Services S.A, CR
    168.205.64.0/24               168.205.64.0/22
    168.205.65.0/24               168.205.64.0/22
    168.205.66.0/24               168.205.64.0/22
    190.4.88.0/24                 190.4.88.0/21
    190.4.89.0/24                 190.4.88.0/21
    190.4.90.0/24                 190.4.88.0/21
    190.4.91.0/24                 190.4.88.0/21
    190.4.92.0/24                 190.4.88.0/21
    190.4.93.0/24                 190.4.88.0/21
    190.4.94.0/24                 190.4.88.0/21
    190.4.95.0/24                 190.4.88.0/21

Whois Entry

whois: 402332

IANA has recorded AS16973 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS16973\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.
             %  2026-04-01 23:43:02 (-03 -03:00)
             
             aut-num:     AS16973
             owner:       T-Four Services S.A
             ownerid:     CR-CHSA-LACNIC
             responsible: Adrian Murillo
             address:     Centro Tecnologico - Tibas, 11401, -
             address:     -- - San Jose - 
             country:     CR
             phone:       +506  46008240 [104]
             owner-c:     IDS8
             routing-c:   IDS8
             abuse-c:     IDS8
             created:     20000707
             changed:     20230620
             inetnum:     168.205.64.0/22
             
             nic-hdl:     IDS8
             person:      Adrian Murillo
             e-mail:      amurillo@tagsystems.com
             address:     Centro Tecnologico CODISA- Tibas, -, -
             address:     11401 - San Jose - 
             country:     CR
             phone:       +506  46008240 [104]
             created:     20121112
             changed:     20250606
             
             % whois.lacnic.net accepts only direct match queries.
             % Types of queries are: POCs, ownerid, CIDR blocks, IP
             % and AS numbers.