Report for 21660

Name

BAXALTA - Baxalta Incorporated, 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.

21660 BAXALTA - Baxalta Incorporated, US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS209           CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS8220          COLT COLT Technology Services Group Limited, GB

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
16350 AS21660        ORIGIN  Originate:       4352 /19.91  Transit:          0 /0.00  BAXALTA - Baxalta Incorporated, 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       %
10043 AS21660       BAXALTA - Baxalta Incorporated, US                11      6      2      7      4  36.36%


  Prefix               AS Path                              Aggregation Suggestion
  43.229.156.0/23      4777 2497 8220 21660   
  43.229.158.0/24      4777 2497 8220 21660   
  63.84.72.0/22        4777 2497 3356 209 21660 + Announce - aggregate of 63.84.72.0/23 (4777 2497 3356 209 21660) and 63.84.74.0/23 (4777 2497 3356 209 21660)
  63.84.72.0/23        4777 2497 3356 209 21660 - Withdrawn - aggregated with 63.84.74.0/23 (4777 2497 3356 209 21660)
  63.84.74.0/24        4777 2497 3356 209 21660 - Withdrawn - aggregated with 63.84.75.0/24 (4777 2497 3356 209 21660)
  63.84.75.0/24        4777 2497 3356 209 21660 - Withdrawn - aggregated with 63.84.74.0/24 (4777 2497 3356 209 21660)
  63.244.0.0/22        4777 2497 3356 21660   
  103.48.172.0/24      4777 2497 8220 21660   
  104.254.253.0/24     4777 2497 3356 209 21660   
  185.89.148.0/22      4777 2497 8220 21660 + Announce - aggregate of 185.89.148.0/23 (4777 2497 8220 21660) and 185.89.150.0/23 (4777 2497 8220 21660)
  185.89.148.0/23      4777 2497 8220 21660 - Withdrawn - aggregated with 185.89.150.0/23 (4777 2497 8220 21660)
  185.89.150.0/24      4777 2497 8220 21660 - Withdrawn - aggregated with 185.89.151.0/24 (4777 2497 8220 21660)
  185.89.151.0/24      4777 2497 8220 21660 - Withdrawn - aggregated with 185.89.150.0/24 (4777 2497 8220 21660)

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

AS21660   11 More Specifics   11 Total Advertisements   BAXALTA - Baxalta Incorporated, US
    43.229.156.0/23               43.229.156.0/22
    43.229.158.0/24               43.229.156.0/22
    63.84.72.0/23                 63.64.0.0/10
    63.84.74.0/24                 63.64.0.0/10
    63.84.75.0/24                 63.64.0.0/10
    63.244.0.0/22                 63.244.0.0/16
    103.48.172.0/24               103.48.172.0/22
    104.254.253.0/24              104.254.248.0/21
    185.89.148.0/23               185.89.148.0/22
    185.89.150.0/24               185.89.148.0/22
    185.89.151.0/24               185.89.148.0/22

Whois Entry

whois: 402332

IANA has recorded AS21660 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21660\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:       21660
             ASName:         BAXALTA
             ASHandle:       AS21660
             RegDate:        2015-01-16
             Updated:        2015-01-16
             Ref:            https://rdap.arin.net/registry/autnum/21660
             
             
             OrgName:        Baxalta Incorporated
             OrgId:          BAXAL
             Address:        1200 Lakeside Drive
             City:           Bannockburn
             StateProv:      IL
             PostalCode:     60015
             Country:        US
             RegDate:        2014-12-17
             Updated:        2024-10-17
             Ref:            https://rdap.arin.net/registry/entity/BAXAL
             
             
             OrgTechHandle: BURGO43-ARIN
             OrgTechName:   Burgos, Gerson 
             OrgTechPhone:  +1-224-940-3662 
             OrgTechEmail:  atta.meer@takeda.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/BURGO43-ARIN
             
             OrgNOCHandle: BURGO43-ARIN
             OrgNOCName:   Burgos, Gerson 
             OrgNOCPhone:  +1-224-940-3662 
             OrgNOCEmail:  atta.meer@takeda.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/BURGO43-ARIN
             
             OrgAbuseHandle: AUAUM-ARIN
             OrgAbuseName:   Mohamed, Atif uddin Atif uddin
             OrgAbusePhone:  +1-217-761-6760 
             OrgAbuseEmail:  atif.mohamed@takeda.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/AUAUM-ARIN
             
             OrgDNSHandle: MEERA1-ARIN
             OrgDNSName:   Meer, Atta 
             OrgDNSPhone:  +1-781-528-3195 
             OrgDNSEmail:  atta.meer@takeda.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/MEERA1-ARIN
             
             OrgRoutingHandle: MEERA1-ARIN
             OrgRoutingName:   Meer, Atta 
             OrgRoutingPhone:  +1-781-528-3195 
             OrgRoutingEmail:  atta.meer@takeda.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/MEERA1-ARIN
             
             OrgAbuseHandle: MEERA1-ARIN
             OrgAbuseName:   Meer, Atta 
             OrgAbusePhone:  +1-781-528-3195 
             OrgAbuseEmail:  atta.meer@takeda.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/MEERA1-ARIN
             
             OrgTechHandle: MEERA1-ARIN
             OrgTechName:   Meer, Atta 
             OrgTechPhone:  +1-781-528-3195 
             OrgTechEmail:  atta.meer@takeda.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/MEERA1-ARIN
             
             OrgAbuseHandle: BURGO43-ARIN
             OrgAbuseName:   Burgos, Gerson 
             OrgAbusePhone:  +1-224-940-3662 
             OrgAbuseEmail:  atta.meer@takeda.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/BURGO43-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.
             #