Report for 19244

Name

Telmex USA, 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.

19244 Telmex USA, AR

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US
    AS396966        CESL-21-ASN-396966 - Claro Enterprise Solutions, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
22250 AS19244        ORIGIN  Originate:       2560 /20.68  Transit:          0 /0.00  Telmex USA, 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       %
21506 AS19244       Telmex USA, AR                                     9      1      0      8      1  11.11%


  Prefix               AS Path                              Aggregation Suggestion
  12.145.193.0/24      4777 2497 7018 19244   
  200.27.11.0/24       4777 2497 2914 8151 396966 19244   
  200.49.248.0/23      4777 2497 2914 8151 396966 19244   
  200.49.248.0/24      4777 2497 2914 8151 396966 19244 - Withdrawn - matching aggregate 200.49.248.0/23 4777 2497 2914 8151 396966 19244
  200.49.249.0/24      4777 2497 7018 19244   
  200.49.250.0/24      4777 2497 2914 8151 396966 19244   
  200.49.252.0/24      4777 2497 7018 19244   
  200.49.253.0/24      4777 2497 2914 8151 396966 19244   
  200.49.255.0/24      4777 2516 1299 8151 396966 19244   

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

AS19244   9 More Specifics   9 Total Advertisements   Telmex USA, AR
    12.145.193.0/24               12.0.0.0/8
    200.27.11.0/24                200.27.0.0/16
    200.49.248.0/23               200.49.248.0/21
    200.49.248.0/24               200.49.248.0/21
    200.49.249.0/24               200.49.248.0/21
    200.49.250.0/24               200.49.248.0/21
    200.49.252.0/24               200.49.248.0/21
    200.49.253.0/24               200.49.248.0/21
    200.49.255.0/24               200.49.248.0/21

Whois Entry

whois: 402332

IANA has recorded AS19244 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS19244\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 23:43:14 (-03 -03:00)
             
             aut-num:     AS19244
             owner:       Telmex USA
             ownerid:     AR-ALAM-LACNIC
             responsible: Cesar Salazar
             address:     SW 148th Ave, 3350, Suite #400
             address:     33027 - Miramar - FL
             country:     AR
             phone:       +1  9545177337 [0000]
             owner-c:     CAV100
             routing-c:   MAL
             abuse-c:     MAL
             created:     20001207
             changed:     20060408
             
             nic-hdl:     CAV100
             person:      Carol Villar
             e-mail:      carol.villar@usclaro.com
             address:     3350 SW 148th Ave, n/a, suite #400
             address:     33027 - Miramar, FL - 
             country:     US
             phone:       +1  9544948514
             created:     20210524
             changed:     20220225
             
             nic-hdl:     MAL
             person:      Cesar Salazar
             e-mail:      cesar.salazar@usclaro.com
             address:     148th Avenue, 3350, suite 400
             address:     33027 - Miramar - FL
             country:     US
             phone:       +1  9545177328 [0000]
             created:     20020918
             changed:     20220225
             
             % whois.lacnic.net accepts only direct match queries.
             % Types of queries are: POCs, ownerid, CIDR blocks, IP
             % and AS numbers.