Report for 53900

Name

ORBIMED - OrbiMed Advisors, 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.

53900 ORBIMED, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS46887         CROWNCASTLE-AS46887, US
    AS174           COGENT-174, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
64540 AS53900        ORIGIN  Originate:        256 /24.00  Transit:          0 /0.00  ORBIMED, 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       %
48523 AS53900       ORBIMED, US                                        1      0      0      1      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  38.121.137.0/24      3257 174 53900         

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

AS53900   1 More Specifics   1 Total Advertisements   ORBIMED, US
    38.121.137.0/24               38.0.0.0/8

Whois Entry

whois: 402590

IANA has recorded AS53900 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS53900\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:       53900
             ASName:         ORBIMED
             ASHandle:       AS53900
             RegDate:        2011-08-03
             Updated:        2022-02-09
             Ref:            https://rdap.arin.net/registry/autnum/53900
             
             
             OrgName:        OrbiMed Advisors, LLC
             OrgId:          OAL-7
             Address:        601 Lexington Avenue
             Address:        54th Floor
             City:           New York
             StateProv:      NY
             PostalCode:     10022
             Country:        US
             RegDate:        2011-07-21
             Updated:        2014-09-04
             Ref:            https://rdap.arin.net/registry/entity/OAL-7
             
             
             OrgNOCHandle: RHEED-ARIN
             OrgNOCName:   Rhee, Daniel 
             OrgNOCPhone:  +1-212-739-6400 
             OrgNOCEmail:  NetworkMonitoring@OrbiMed.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/RHEED-ARIN
             
             OrgTechHandle: RHEED-ARIN
             OrgTechName:   Rhee, Daniel 
             OrgTechPhone:  +1-212-739-6400 
             OrgTechEmail:  NetworkMonitoring@OrbiMed.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/RHEED-ARIN
             
             OrgAbuseHandle: RHEED-ARIN
             OrgAbuseName:   Rhee, Daniel 
             OrgAbusePhone:  +1-212-739-6400 
             OrgAbuseEmail:  NetworkMonitoring@OrbiMed.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/RHEED-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.
             #