Report for 4195

Name

SHAW - D. E. Shaw & Co. LP, 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.

4195 SHAW - D. E. Shaw & Co. LP, US

  Adjacency:    10  Upstream:    10  Downstream:     0
  Upstream Adjacent AS list
    AS46887         CROWNCASTLE-AS46887 - Crown Castle Fiber LLC, US
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS9381          HKBNES-AS-AP - HKBN Enterprise Solutions HK Limited, HK
    AS9498          BBIL-AP - BHARTI Airtel Ltd., IN
    AS11269         LINKBERMUDA - LinkBermuda LTD, BM
    AS174           COGENT-174 - Cogent Communications, LLC, US
    AS4637          ASN-TELSTRA-GLOBAL - Telstra Global, HK
    AS701           UUNET - Verizon Business, US
    AS8220          COLT - COLT Technology Services Group Limited, GB
    AS9583          SIFY-AS-IN - Sify Limited, IN

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
2831  AS4195         ORIGIN  Originate:      75008 /15.81  Transit:          0 /0.00  SHAW - D. E. Shaw & Co. LP, 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       %
 5265 AS4195        SHAW - D. E. Shaw & Co. LP, US                    21     11      2     12      9  42.86%


  Prefix               AS Path                              Aggregation Suggestion
  103.145.16.0/24      4608 24115 9498 4195   
  149.77.0.0/16        4777 2516 701 4195     
  149.77.48.0/23       4608 1221 4637 4195  + Announce - aggregate of 149.77.48.0/24 (4608 1221 4637 4195) and 149.77.49.0/24 (4608 1221 4637 4195)
  149.77.48.0/24       4608 1221 4637 4195  - Withdrawn - aggregated with 149.77.49.0/24 (4608 1221 4637 4195)
  149.77.49.0/24       4608 1221 4637 4195  - Withdrawn - aggregated with 149.77.48.0/24 (4608 1221 4637 4195)
  149.77.92.0/24       4777 2516 174 4195     
  149.77.93.0/24       4777 2516 701 4195   - Withdrawn - matching aggregate 149.77.0.0/16 4777 2516 701 4195
  149.77.94.0/24       4777 2516 701 4195   - Withdrawn - matching aggregate 149.77.0.0/16 4777 2516 701 4195
  149.77.95.0/24       4777 2516 701 4195   - Withdrawn - matching aggregate 149.77.0.0/16 4777 2516 701 4195
  149.77.97.0/24       4777 2516 701 4195   - Withdrawn - matching aggregate 149.77.0.0/16 4777 2516 701 4195
  149.77.99.0/24       4777 2516 701 4195   - Withdrawn - matching aggregate 149.77.0.0/16 4777 2516 701 4195
  149.77.192.0/24      4777 2516 8220 4195    
  149.77.194.0/23      4777 2516 8220 4195  + Announce - aggregate of 149.77.194.0/24 (4777 2516 8220 4195) and 149.77.195.0/24 (4777 2516 8220 4195)
  149.77.194.0/24      4777 2516 8220 4195  - Withdrawn - aggregated with 149.77.195.0/24 (4777 2516 8220 4195)
  149.77.195.0/24      4777 2516 8220 4195  - Withdrawn - aggregated with 149.77.194.0/24 (4777 2516 8220 4195)
  149.77.198.0/23      4608 7575 9381 4195    
  149.77.208.0/23      4608 7575 1299 11269 4195   
  149.77.232.0/24      4608 1221 4637 4195    
  149.77.254.0/24      4777 2497 6461 4195    
  160.30.203.0/24      4777 4713 2914 9583 4195   
  205.231.96.0/20      4777 2516 701 4195     
  205.231.102.0/24     4777 2516 701 4195   - Withdrawn - matching aggregate 205.231.96.0/20 4777 2516 701 4195
  205.231.104.0/24     4777 2516 701 4195   - Withdrawn - matching aggregate 205.231.96.0/20 4777 2516 701 4195

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

AS4195   18 More Specifics   21 Total Advertisements   SHAW - D. E. Shaw & Co. LP, US
    149.77.48.0/24                149.77.0.0/16
    149.77.49.0/24                149.77.0.0/16
    149.77.92.0/24                149.77.0.0/16
    149.77.93.0/24                149.77.0.0/16
    149.77.94.0/24                149.77.0.0/16
    149.77.95.0/24                149.77.0.0/16
    149.77.97.0/24                149.77.0.0/16
    149.77.99.0/24                149.77.0.0/16
    149.77.192.0/24               149.77.0.0/16
    149.77.194.0/24               149.77.0.0/16
    149.77.195.0/24               149.77.0.0/16
    149.77.198.0/23               149.77.0.0/16
    149.77.208.0/23               149.77.0.0/16
    149.77.232.0/24               149.77.0.0/16
    149.77.254.0/24               149.77.0.0/16
    205.231.96.0/20               205.228.0.0/14
    205.231.102.0/24              205.228.0.0/14
    205.231.104.0/24              205.228.0.0/14

Whois Entry

whois: 402609

IANA has recorded AS4195 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS4195\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:       4195
             ASName:         SHAW
             ASHandle:       AS4195
             RegDate:        1994-12-16
             Updated:        2025-06-19
             Ref:            https://rdap.arin.net/registry/autnum/4195
             
             
             OrgName:        D. E. Shaw & Co. LP
             OrgId:          DESH-Z
             Address:        Two Manhattan West, 375 9th Ave 52nd Floor
             City:           New York
             StateProv:      NY
             PostalCode:     10001
             Country:        US
             RegDate:        2020-09-08
             Updated:        2025-06-11
             Ref:            https://rdap.arin.net/registry/entity/DESH-Z
             
             
             OrgTechHandle: DESNA-ARIN
             OrgTechName:   D E Shaw Network Administrators
             OrgTechPhone:  +1-212-478-0600 
             OrgTechEmail:  netadmin@deshaw.net
             OrgTechRef:    https://rdap.arin.net/registry/entity/DESNA-ARIN
             
             OrgAbuseHandle: DESNA-ARIN
             OrgAbuseName:   D E Shaw Network Administrators
             OrgAbusePhone:  +1-212-478-0600 
             OrgAbuseEmail:  netadmin@deshaw.net
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/DESNA-ARIN
             
             OrgTechHandle: DESDA-ARIN
             OrgTechName:   D E Shaw DNS Administrators
             OrgTechPhone:  +1-212-478-0600 
             OrgTechEmail:  dnsadmin@deshaw.net
             OrgTechRef:    https://rdap.arin.net/registry/entity/DESDA-ARIN
             
             OrgRoutingHandle: DESNA-ARIN
             OrgRoutingName:   D E Shaw Network Administrators
             OrgRoutingPhone:  +1-212-478-0600 
             OrgRoutingEmail:  netadmin@deshaw.net
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/DESNA-ARIN
             
             OrgDNSHandle: DESDA-ARIN
             OrgDNSName:   D E Shaw DNS Administrators
             OrgDNSPhone:  +1-212-478-0600 
             OrgDNSEmail:  dnsadmin@deshaw.net
             OrgDNSRef:    https://rdap.arin.net/registry/entity/DESDA-ARIN
             
             OrgNOCHandle: DESNA-ARIN
             OrgNOCName:   D E Shaw Network Administrators
             OrgNOCPhone:  +1-212-478-0600 
             OrgNOCEmail:  netadmin@deshaw.net
             OrgNOCRef:    https://rdap.arin.net/registry/entity/DESNA-ARIN
             
             RTechHandle: SHAW-DNS-ARIN
             RTechName:   DE Shaw Securities Group  LP
             RTechPhone:  +1-212-478-0600 
             RTechEmail:  dnsadmin@deshaw.net
             RTechRef:    https://rdap.arin.net/registry/entity/SHAW-DNS-ARIN
             
             RTechHandle: DESNA-ARIN
             RTechName:   D E Shaw Network Administrators
             RTechPhone:  +1-212-478-0600 
             RTechEmail:  netadmin@deshaw.net
             RTechRef:    https://rdap.arin.net/registry/entity/DESNA-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.
             #