Report for 11584

Name

NYCHHC - New York City Health & Hospitals Corporation, 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.

11584 NYCHHC - New York City Health & Hospitals Corporation, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS54004         LIGHTPATH - Cablevision Lightpath LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
8244  AS11584        ORIGIN  Originate:      15104 /18.12  Transit:          0 /0.00  NYCHHC - New York City Health & Hospitals Corporation, 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       %
 6362 AS11584       NYCHHC - New York City Health & Hospitals Cor     15      7      0      8      7  46.67%


  Prefix               AS Path                              Aggregation Suggestion
  64.251.32.0/20       4777 2497 3356 11584 11584 11584 11584 11584   
  64.251.40.0/21       4777 2497 3356 11584 11584 11584 11584 11584 - Withdrawn - matching aggregate 64.251.32.0/20 4777 2497 3356 11584 11584 11584 11584 11584
  64.251.40.0/24       4777 2497 3356 6128 54004 11584 11584 11584 11584 11584   
  64.251.41.0/24       4777 2497 3356 11584 11584 11584 11584 11584 - Withdrawn - matching aggregate 64.251.32.0/20 4777 2497 3356 11584 11584 11584 11584 11584
  64.251.42.0/24       4777 2497 3356 6128 54004 11584 11584 11584 11584 11584   
  64.251.43.0/24       4777 2497 3356 11584 11584 11584 11584 11584 - Withdrawn - matching aggregate 64.251.32.0/20 4777 2497 3356 11584 11584 11584 11584 11584
  64.251.44.0/24       4777 2497 3356 6128 54004 11584 11584 11584 11584 11584   
  64.251.45.0/24       4777 2497 3356 11584 11584 11584 11584 11584 - Withdrawn - matching aggregate 64.251.32.0/20 4777 2497 3356 11584 11584 11584 11584 11584
  64.251.46.0/24       4777 2497 3356 6128 54004 11584 11584 11584 11584 11584   
  64.251.47.0/24       4777 2497 3356 11584 11584 11584 11584 11584 - Withdrawn - matching aggregate 64.251.32.0/20 4777 2497 3356 11584 11584 11584 11584 11584
  67.221.16.0/20       4777 2497 3356 11584 11584 11584 11584 11584   
  67.221.24.0/21       4777 2497 3356 11584 11584 11584 11584 11584 - Withdrawn - matching aggregate 67.221.16.0/20 4777 2497 3356 11584 11584 11584 11584 11584
  67.221.24.0/24       4777 2497 3356 6128 54004 11584 11584 11584 11584 11584   
  67.221.26.0/24       4777 2516 174 6128 6128 54004 11584 11584 11584 11584 11584   
  67.221.27.0/24       4777 2497 3356 11584 11584 11584 11584 11584 - Withdrawn - matching aggregate 67.221.16.0/20 4777 2497 3356 11584 11584 11584 11584 11584

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

AS11584   13 More Specifics   15 Total Advertisements   NYCHHC - New York City Health & Hospitals Corporation, US
    64.251.40.0/21                64.251.32.0/20
    64.251.40.0/24                64.251.32.0/20
    64.251.41.0/24                64.251.32.0/20
    64.251.42.0/24                64.251.32.0/20
    64.251.43.0/24                64.251.32.0/20
    64.251.44.0/24                64.251.32.0/20
    64.251.45.0/24                64.251.32.0/20
    64.251.46.0/24                64.251.32.0/20
    64.251.47.0/24                64.251.32.0/20
    67.221.24.0/21                67.221.16.0/20
    67.221.24.0/24                67.221.16.0/20
    67.221.26.0/24                67.221.16.0/20
    67.221.27.0/24                67.221.16.0/20

Whois Entry

whois: 402332

IANA has recorded AS11584 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS11584\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:       11584
             ASName:         NYCHHC
             ASHandle:       AS11584
             RegDate:        2008-03-11
             Updated:        2018-05-09
             Ref:            https://rdap.arin.net/registry/autnum/11584
             
             
             OrgName:        New York City Health & Hospitals Corporation
             OrgId:          NYCHHC-1
             Address:        1400 Pelham Pkwy S
             Address:        Bldg # 4, Suite # 1039
             City:           Bronx
             StateProv:      NY
             PostalCode:     10461
             Country:        US
             RegDate:        2008-01-11
             Updated:        2018-05-09
             Ref:            https://rdap.arin.net/registry/entity/NYCHHC-1
             
             
             OrgTechHandle: SNA93-ARIN
             OrgTechName:   Sr Network Architect
             OrgTechPhone:  +1-646-694-5519 
             OrgTechEmail:  khalid.rucker@nychhc.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/SNA93-ARIN
             
             OrgNOCHandle: SNA93-ARIN
             OrgNOCName:   Sr Network Architect
             OrgNOCPhone:  +1-646-694-5519 
             OrgNOCEmail:  khalid.rucker@nychhc.org
             OrgNOCRef:    https://rdap.arin.net/registry/entity/SNA93-ARIN
             
             OrgAbuseHandle: SNA93-ARIN
             OrgAbuseName:   Sr Network Architect
             OrgAbusePhone:  +1-646-694-5519 
             OrgAbuseEmail:  khalid.rucker@nychhc.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/SNA93-ARIN
             
             RTechHandle: SNA93-ARIN
             RTechName:   Sr Network Architect
             RTechPhone:  +1-646-694-5519 
             RTechEmail:  khalid.rucker@nychhc.org
             RTechRef:    https://rdap.arin.net/registry/entity/SNA93-ARIN
             
             RNOCHandle: SNA93-ARIN
             RNOCName:   Sr Network Architect
             RNOCPhone:  +1-646-694-5519 
             RNOCEmail:  khalid.rucker@nychhc.org
             RNOCRef:    https://rdap.arin.net/registry/entity/SNA93-ARIN
             
             RAbuseHandle: SNA93-ARIN
             RAbuseName:   Sr Network Architect
             RAbusePhone:  +1-646-694-5519 
             RAbuseEmail:  khalid.rucker@nychhc.org
             RAbuseRef:    https://rdap.arin.net/registry/entity/SNA93-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.
             #