Report for 2539

Name

GLAXOSMITHKLINE - GlaxoSmithKline, 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.

2539 GLAXOSMITHKLINE - GlaxoSmithKline, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS10753         LUMEN-LEGACY-L3-CUSTOMER-SHARED-USE - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
58378 AS2539         ORIGIN  Originate:        256 /24.00  Transit:          0 /0.00  GLAXOSMITHKLINE - GlaxoSmithKline, 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       %
30479 AS2539        GLAXOSMITHKLINE - GlaxoSmithKline, US              1      0      0      1      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  152.51.56.0/24       4777 2497 3356 10753 2539   

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

AS2539   1 More Specifics   1 Total Advertisements   GLAXOSMITHKLINE - GlaxoSmithKline, US
    152.51.56.0/24                152.51.0.0/16

Whois Entry

whois: 402599

IANA has recorded AS2539 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS2539\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:       2539
             ASName:         GLAXOSMITHKLINE
             ASHandle:       AS2539
             RegDate:        1993-03-05
             Updated:        2007-06-08
             Ref:            https://rdap.arin.net/registry/autnum/2539
             
             
             OrgName:        GlaxoSmithKline
             OrgId:          SBC-92
             Address:        5 Crescent Drive
             City:           Philadelphia
             StateProv:      PA
             PostalCode:     19112
             Country:        US
             RegDate:        2007-03-13
             Updated:        2021-02-10
             Ref:            https://rdap.arin.net/registry/entity/SBC-92
             
             
             OrgTechHandle: GSKTE-ARIN
             OrgTechName:   GSK-TECH
             OrgTechPhone:  +1-215-751-4000 
             OrgTechEmail:  addrmgmt@gsk.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/GSKTE-ARIN
             
             OrgAbuseHandle: GSKCS-ARIN
             OrgAbuseName:   GSK-CSIR
             OrgAbusePhone:  +1-610-962-4048 
             OrgAbuseEmail:  csir@gsk.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/GSKCS-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.
             #