Report for 27399

Name

BAM-US - Balyasny Asset Management L.P., 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.

27399 BAM-US - Balyasny Asset Management L.P., US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS13335         CLOUDFLARENET - Cloudflare, Inc., US
    AS4637          ASN-TELSTRA-GLOBAL Telstra Global, HK

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
21411 AS27399        ORIGIN  Originate:       2816 /20.54  Transit:          0 /0.00  BAM-US - Balyasny Asset Management L.P., 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       %
15917 AS27399       BAM-US - Balyasny Asset Management L.P., US       11      4      2      9      2  18.18%


  Prefix               AS Path                              Aggregation Suggestion
  38.89.137.0/24       4608 1221 4637 27399   
  38.103.125.0/24      4777 13335 27399       
  38.126.139.0/24      4777 13335 27399       
  38.131.243.0/24      4608 1221 4637 27399   
  67.155.2.0/24        4777 13335 27399       
  82.98.194.0/24       4777 13335 27399       
  103.158.202.0/23     4777 13335 27399     + Announce - aggregate of 103.158.202.0/24 (4777 13335 27399) and 103.158.203.0/24 (4777 13335 27399)
  103.158.202.0/24     4777 13335 27399     - Withdrawn - aggregated with 103.158.203.0/24 (4777 13335 27399)
  103.158.203.0/24     4777 13335 27399     - Withdrawn - aggregated with 103.158.202.0/24 (4777 13335 27399)
  136.175.142.0/23     4777 13335 27399     + Announce - aggregate of 136.175.142.0/24 (4777 13335 27399) and 136.175.143.0/24 (4777 13335 27399)
  136.175.142.0/24     4777 13335 27399     - Withdrawn - aggregated with 136.175.143.0/24 (4777 13335 27399)
  136.175.143.0/24     4777 13335 27399     - Withdrawn - aggregated with 136.175.142.0/24 (4777 13335 27399)
  185.179.88.0/24      4777 13335 27399       

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

AS27399   10 More Specifics   11 Total Advertisements   BAM-US - Balyasny Asset Management L.P., US
    38.89.137.0/24                38.0.0.0/8
    38.103.125.0/24               38.0.0.0/8
    38.126.139.0/24               38.0.0.0/8
    38.131.243.0/24               38.0.0.0/8
    67.155.2.0/24                 67.152.0.0/14
    82.98.194.0/24                82.98.192.0/21
    103.158.202.0/24              103.158.202.0/23
    103.158.203.0/24              103.158.202.0/23
    136.175.142.0/24              136.175.142.0/23
    136.175.143.0/24              136.175.142.0/23

Whois Entry

whois: 402332

IANA has recorded AS27399 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS27399\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:       27399
             ASName:         BAM-US
             ASHandle:       AS27399
             RegDate:        2003-02-26
             Updated:        2012-02-24
             Ref:            https://rdap.arin.net/registry/autnum/27399
             
             
             OrgName:        Balyasny Asset Management L.P.
             OrgId:          BAM-26
             Address:        767 5th Avenue,
             Address:        35th floor
             City:           New York
             StateProv:      NY
             PostalCode:     10153
             Country:        US
             RegDate:        2003-02-11
             Updated:        2024-11-25
             Ref:            https://rdap.arin.net/registry/entity/BAM-26
             
             
             OrgNOCHandle: BAMFU-ARIN
             OrgNOCName:   BAMFUNDS-NOC
             OrgNOCPhone:  +1-212-808-2300 
             OrgNOCEmail:  EXT-NOC@bamfunds.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/BAMFU-ARIN
             
             OrgAbuseHandle: BAMFU1-ARIN
             OrgAbuseName:   BAMFUNDS-SOC
             OrgAbusePhone:  +1-212-808-2300 
             OrgAbuseEmail:  EXT-SOC@bamfunds.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/BAMFU1-ARIN
             
             OrgTechHandle: BAMFU-ARIN
             OrgTechName:   BAMFUNDS-NOC
             OrgTechPhone:  +1-212-808-2300 
             OrgTechEmail:  EXT-NOC@bamfunds.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/BAMFU-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.
             #