Report for 11452

Name

MOUNT-SINAI - Mount Sinai School of Medicine, 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.

11452 MOUNT-SINAI - Mount Sinai School of Medicine, US

  Adjacency:     5  Upstream:     5  Downstream:     0
  Upstream Adjacent AS list
    AS3754          NYSERNET3-AS - NYSERNet, US
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US
    AS174           COGENT-174 - Cogent Communications, LLC, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS32787         PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK - Akamai Technologies, Inc., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
4128  AS11452        ORIGIN  Originate:      57088 /16.20  Transit:          0 /0.00  MOUNT-SINAI - Mount Sinai School of Medicine, 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       %
 7162 AS11452       MOUNT-SINAI - Mount Sinai School of Medicine,     14     10      4      8      6  42.86%


  Prefix               AS Path                              Aggregation Suggestion
  146.203.0.0/17       4777 2516 174 11452 11452 + Announce - aggregate of 146.203.0.0/18 (4777 2516 174 11452 11452) and 146.203.64.0/18 (4777 2516 174 11452 11452)
  146.203.0.0/18       4777 2516 174 11452 11452 - Withdrawn - aggregated with 146.203.64.0/18 (4777 2516 174 11452 11452)
  146.203.64.0/18      4777 2516 174 11452 11452 - Withdrawn - aggregated with 146.203.0.0/18 (4777 2516 174 11452 11452)
  146.203.128.0/21     4777 2516 3356 11452 11452   
  146.203.136.0/21     4777 2497 7018 11452   
  146.203.138.0/23     4777 32787 11452     + Announce - aggregate of 146.203.138.0/24 (4777 32787 11452) and 146.203.139.0/24 (4777 32787 11452)
  146.203.138.0/24     4777 32787 11452     - Withdrawn - aggregated with 146.203.139.0/24 (4777 32787 11452)
  146.203.139.0/24     4777 32787 11452     - Withdrawn - aggregated with 146.203.138.0/24 (4777 32787 11452)
  146.203.144.0/21     4777 2497 7018 11452 + Announce - aggregate of 146.203.144.0/22 (4777 2497 7018 11452) and 146.203.148.0/22 (4777 2497 7018 11452)
  146.203.144.0/22     4777 2497 7018 11452 - Withdrawn - aggregated with 146.203.148.0/22 (4777 2497 7018 11452)
  146.203.148.0/22     4777 2497 7018 11452 - Withdrawn - aggregated with 146.203.144.0/22 (4777 2497 7018 11452)
  146.203.148.0/22     4777 32787 11452     + Announce - aggregate of 146.203.148.0/23 (4777 32787 11452) and 146.203.150.0/23 (4777 32787 11452)
  146.203.148.0/24     4777 32787 11452     - Withdrawn - aggregated with 146.203.149.0/24 (4777 32787 11452)
  146.203.149.0/24     4777 32787 11452     - Withdrawn - aggregated with 146.203.148.0/24 (4777 32787 11452)
  146.203.150.0/24     4777 32787 11452     - Withdrawn - aggregated with 146.203.151.0/24 (4777 32787 11452)
  146.203.151.0/24     4777 32787 11452     - Withdrawn - aggregated with 146.203.150.0/24 (4777 32787 11452)
  146.203.192.0/18     4777 2516 3356 11452 11452   
  159.123.127.0/24     4777 2516 3356 11452 11452   

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

AS11452   14 More Specifics   14 Total Advertisements   MOUNT-SINAI - Mount Sinai School of Medicine, US
    146.203.0.0/18                146.203.0.0/16
    146.203.64.0/18               146.203.0.0/16
    146.203.128.0/21              146.203.0.0/16
    146.203.136.0/21              146.203.0.0/16
    146.203.138.0/24              146.203.0.0/16
    146.203.139.0/24              146.203.0.0/16
    146.203.144.0/22              146.203.0.0/16
    146.203.148.0/22              146.203.0.0/16
    146.203.148.0/24              146.203.0.0/16
    146.203.149.0/24              146.203.0.0/16
    146.203.150.0/24              146.203.0.0/16
    146.203.151.0/24              146.203.0.0/16
    146.203.192.0/18              146.203.0.0/16
    159.123.127.0/24              159.123.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS11452 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS11452\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:       11452
             ASName:         MOUNT-SINAI
             ASHandle:       AS11452
             RegDate:        1998-08-27
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/11452
             
             
             OrgName:        Mount Sinai School of Medicine
             OrgId:          MSSM
             Address:        One Gustave L. Levy Place
             Address:        Mailstop 1102
             City:           New York
             StateProv:      NY
             PostalCode:     10029-6574
             Country:        US
             RegDate:        1991-02-28
             Updated:        2023-06-20
             Ref:            https://rdap.arin.net/registry/entity/MSSM
             
             
             OrgNOCHandle: AP412-ARIN
             OrgNOCName:   Pizzimenti, Andrew 
             OrgNOCPhone:  +1-212-241-4925 
             OrgNOCEmail:  andrew.pizzimenti@mssm.edu
             OrgNOCRef:    https://rdap.arin.net/registry/entity/AP412-ARIN
             
             OrgTechHandle: AP412-ARIN
             OrgTechName:   Pizzimenti, Andrew 
             OrgTechPhone:  +1-212-241-4925 
             OrgTechEmail:  andrew.pizzimenti@mssm.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/AP412-ARIN
             
             OrgTechHandle: GUNTH50-ARIN
             OrgTechName:   Gunther, Doug 
             OrgTechPhone:  +1-212-814-4541 
             OrgTechEmail:  doug.gunther@mountsinai.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/GUNTH50-ARIN
             
             OrgNOCHandle: CRUZO-ARIN
             OrgNOCName:   Cruz, Orquidia 
             OrgNOCPhone:  +1-646-201-6425 
             OrgNOCEmail:  Orquidia.Cruz@mssm.edu
             OrgNOCRef:    https://rdap.arin.net/registry/entity/CRUZO-ARIN
             
             OrgAbuseHandle: AP412-ARIN
             OrgAbuseName:   Pizzimenti, Andrew 
             OrgAbusePhone:  +1-212-241-4925 
             OrgAbuseEmail:  andrew.pizzimenti@mssm.edu
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/AP412-ARIN
             
             RTechHandle: AP412-ARIN
             RTechName:   Pizzimenti, Andrew 
             RTechPhone:  +1-212-241-4925 
             RTechEmail:  andrew.pizzimenti@mssm.edu
             RTechRef:    https://rdap.arin.net/registry/entity/AP412-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.
             #