Report for 21931

Name

THOMSON-REUTERS - Thomson Reuters U.S. 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 AS6447) 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.

21931 THOMSON-REUTERS, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS3356          LEVEL3, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
59937 AS21931        ORIGIN  Originate:        256 /24.00  Transit:          0 /0.00  THOMSON-REUTERS, 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       %
36196 AS21931       THOMSON-REUTERS, US                                1      0      0      1      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  155.46.130.0/24      7018 3356 21931 21931 21931 21931   

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

AS21931   1 More Specifics   1 Total Advertisements   THOMSON-REUTERS, US
    155.46.130.0/24               155.46.128.0/17

Whois Entry

whois: 402590

IANA has recorded AS21931 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21931\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:       21931
             ASName:         THOMSON-REUTERS
             ASHandle:       AS21931
             RegDate:        2005-06-06
             Updated:        2021-10-04
             Ref:            https://rdap.arin.net/registry/autnum/21931
             
             
             OrgName:        Thomson Reuters U.S. LLC
             OrgId:          TRU-11
             Address:        One Station Place
             Address:        Metro Center
             City:           Stamford
             StateProv:      CT
             PostalCode:     06902
             Country:        US
             RegDate:        2012-09-12
             Updated:        2014-12-03
             Ref:            https://rdap.arin.net/registry/entity/TRU-11
             
             
             OrgTechHandle: TRIPT-ARIN
             OrgTechName:   TR-IP-TECH
             OrgTechPhone:  +1-651-687-7000 
             OrgTechEmail:  TR.IP-TECH@thomsonreuters.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/TRIPT-ARIN
             
             OrgAbuseHandle: TRIPA1-ARIN
             OrgAbuseName:   TR-IP-Abuse
             OrgAbusePhone:  +1-651-687-7000 
             OrgAbuseEmail:  TR.IP-ABUSE@thomsonreuters.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/TRIPA1-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.
             #