Report for 36291

Name

SANOFI - Sanofi, 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.

36291 SANOFI - Sanofi, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
1308  AS36291        ORIGIN  Originate:     198656 /14.40  Transit:          0 /0.00  SANOFI - Sanofi, 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       %
10099 AS36291       SANOFI - Sanofi, US                               10      6      2      6      4  40.00%


  Prefix               AS Path                              Aggregation Suggestion
  155.65.0.0/16        4777 2516 3356 36291   
  155.65.251.0/24      4777 2516 3356 36291 - Withdrawn - matching aggregate 155.65.0.0/16 4777 2516 3356 36291
  157.206.0.0/16       4777 2516 3356 36291   
  168.124.0.0/16       4777 2516 3356 36291   
  192.234.110.0/23     4777 2516 3356 36291 + Announce - aggregate of 192.234.110.0/24 (4777 2516 3356 36291) and 192.234.111.0/24 (4777 2516 3356 36291)
  192.234.110.0/24     4777 2516 3356 36291 - Withdrawn - aggregated with 192.234.111.0/24 (4777 2516 3356 36291)
  192.234.111.0/24     4777 2516 3356 36291 - Withdrawn - aggregated with 192.234.110.0/24 (4777 2516 3356 36291)
  205.137.76.0/22      4777 2516 3356 36291 + Announce - aggregate of 205.137.76.0/23 (4777 2516 3356 36291) and 205.137.78.0/23 (4777 2516 3356 36291)
  205.137.76.0/24      4777 2516 3356 36291 - Withdrawn - aggregated with 205.137.77.0/24 (4777 2516 3356 36291)
  205.137.77.0/24      4777 2516 3356 36291 - Withdrawn - aggregated with 205.137.76.0/24 (4777 2516 3356 36291)
  205.137.78.0/23      4777 2516 3356 36291 - Withdrawn - aggregated with 205.137.76.0/23 (4777 2516 3356 36291)
  205.137.79.0/24      4777 2497 7018 36291   

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

AS36291   5 More Specifics   10 Total Advertisements   SANOFI - Sanofi, US
    155.65.251.0/24               155.65.0.0/16
    205.137.76.0/24               205.137.64.0/20
    205.137.77.0/24               205.137.64.0/20
    205.137.78.0/23               205.137.64.0/20
    205.137.79.0/24               205.137.64.0/20

Prefixes added and withdrawn by this origin AS in the past 7 days.

    + 205.137.79.0/24             Announced

Whois Entry

whois: 402617

IANA has recorded AS36291 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS36291\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:       36291
             ASName:         SANOFI
             ASHandle:       AS36291
             RegDate:        2005-11-16
             Updated:        2019-10-03
             Ref:            https://rdap.arin.net/registry/autnum/36291
             
             
             OrgName:        Sanofi
             OrgId:          SUS-23
             Address:        55 Corporate Drive
             City:           Bridgewater
             StateProv:      NJ
             PostalCode:     08807
             Country:        US
             RegDate:        2018-05-25
             Updated:        2020-05-08
             Ref:            https://rdap.arin.net/registry/entity/SUS-23
             
             
             OrgTechHandle: CITSI-ARIN
             OrgTechName:   CITS IPADMIN
             OrgTechPhone:  +1-908-981-4037 
             OrgTechEmail:  etsipadmin@sanofi.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/CITSI-ARIN
             
             OrgAbuseHandle: CITSI-ARIN
             OrgAbuseName:   CITS IPADMIN
             OrgAbusePhone:  +1-908-981-4037 
             OrgAbuseEmail:  etsipadmin@sanofi.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/CITSI-ARIN
             
             OrgAbuseHandle: SUNXI6-ARIN
             OrgAbuseName:   Sun, Xianyi 
             OrgAbusePhone:  +1-201-779-4528 
             OrgAbuseEmail:  xianyi.sun@sanofi.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/SUNXI6-ARIN
             
             OrgTechHandle: SUNXI6-ARIN
             OrgTechName:   Sun, Xianyi 
             OrgTechPhone:  +1-201-779-4528 
             OrgTechEmail:  xianyi.sun@sanofi.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/SUNXI6-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.
             #