Report for 20129

Name

MAS-NJDC - Mizuho Americas Services LLC, US

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.

20129 MAS-NJDC - Mizuho Americas Services LLC, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS32787         PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK - Akamai Technologies, Inc., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
35126 AS20129        ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  MAS-NJDC - Mizuho Americas Services LLC, US

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       %
35116 AS20129       MAS-NJDC - Mizuho Americas Services LLC, US        4      0      0      4      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  8.11.195.0/24        4777 32787 20129       
  192.129.92.0/24      4777 32787 20129       
  208.85.105.0/24      4777 32787 20129       
  208.85.107.0/24      4777 32787 20129       

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

AS20129   4 More Specifics   4 Total Advertisements   MAS-NJDC - Mizuho Americas Services LLC, US
    8.11.195.0/24                 8.10.0.0/15
    192.129.92.0/24               192.129.92.0/23
    208.85.105.0/24               208.85.104.0/22
    208.85.107.0/24               208.85.104.0/22

Whois Entry

whois: 402603

IANA has recorded AS20129 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS20129\n             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #
             
             
             ASNumber:       20129
             ASName:         MAS-NJDC
             ASHandle:       AS20129
             RegDate:        2001-03-28
             Updated:        2022-11-30
             Ref:            https://rdap.arin.net/registry/autnum/20129
             
             
             OrgName:        Mizuho Americas Services LLC
             OrgId:          MASL-12
             Address:        1271 Avenue of the Americas
             City:           New York
             StateProv:      NY
             PostalCode:     10020
             Country:        US
             RegDate:        2022-09-19
             Updated:        2026-01-29
             Ref:            https://rdap.arin.net/registry/entity/MASL-12
             
             
             OrgTechHandle: LANKI-ARIN
             OrgTechName:   Lankios, Alex 
             OrgTechPhone:  +1-212-209-9344 
             OrgTechEmail:  alex.lankios@mizuhogroup.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/LANKI-ARIN
             
             OrgTechHandle: NETWO3673-ARIN
             OrgTechName:   Network Team
             OrgTechPhone:  +1-212-209-9493 
             OrgTechEmail:  NetworkTeam@mizuhogroup.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO3673-ARIN
             
             OrgNOCHandle: NETWO3673-ARIN
             OrgNOCName:   Network Team
             OrgNOCPhone:  +1-212-209-9493 
             OrgNOCEmail:  NetworkTeam@mizuhogroup.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO3673-ARIN
             
             OrgAbuseHandle: NETWO3673-ARIN
             OrgAbuseName:   Network Team
             OrgAbusePhone:  +1-212-209-9493 
             OrgAbuseEmail:  NetworkTeam@mizuhogroup.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO3673-ARIN
             
             OrgTechHandle: SETER5-ARIN
             OrgTechName:   Seter, Shawn 
             OrgTechPhone:  +1-312-294-8620 
             OrgTechEmail:  shawn.seter@mizuhogroup.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/SETER5-ARIN
             
             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #