Report for 20442

Name

YNHHSC - Yale-New Haven Health Services 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 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.

20442 YNHHSC, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS46887         CROWNCASTLE-AS46887, US
    AS7018          ATT-INTERNET4, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
12485 AS20442        ORIGIN  Originate:       7680 /19.09  Transit:          0 /0.00  YNHHSC, 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       %
 3167 AS20442       YNHHSC, US                                        30     24      7     13     17  56.67%


  Prefix               AS Path                              Aggregation Suggestion
  64.252.240.0/21      7018 20442           + Announce - aggregate of 64.252.240.0/22 (7018 20442) and 64.252.244.0/22 (7018 20442)
  64.252.240.0/24      7018 20442           - Withdrawn - aggregated with 64.252.241.0/24 (7018 20442)
  64.252.241.0/24      7018 20442           - Withdrawn - aggregated with 64.252.240.0/24 (7018 20442)
  64.252.242.0/24      7018 20442           - Withdrawn - aggregated with 64.252.243.0/24 (7018 20442)
  64.252.243.0/24      7018 20442           - Withdrawn - aggregated with 64.252.242.0/24 (7018 20442)
  64.252.244.0/24      7018 20442           - Withdrawn - aggregated with 64.252.245.0/24 (7018 20442)
  64.252.245.0/24      7018 20442           - Withdrawn - aggregated with 64.252.244.0/24 (7018 20442)
  64.252.246.0/24      7018 20442           - Withdrawn - aggregated with 64.252.247.0/24 (7018 20442)
  64.252.247.0/24      7018 20442           - Withdrawn - aggregated with 64.252.246.0/24 (7018 20442)
  74.113.112.0/22      7018 20442           + Announce - aggregate of 74.113.112.0/23 (7018 20442) and 74.113.114.0/23 (7018 20442)
  74.113.112.0/24      7018 20442           - Withdrawn - aggregated with 74.113.113.0/24 (7018 20442)
  74.113.113.0/24      7018 20442           - Withdrawn - aggregated with 74.113.112.0/24 (7018 20442)
  74.113.114.0/24      7018 20442           - Withdrawn - aggregated with 74.113.115.0/24 (7018 20442)
  74.113.115.0/24      7018 20442           - Withdrawn - aggregated with 74.113.114.0/24 (7018 20442)
  74.113.116.0/23      7018 20442           + Announce - aggregate of 74.113.116.0/24 (7018 20442) and 74.113.117.0/24 (7018 20442)
  74.113.116.0/24      7018 20442           - Withdrawn - aggregated with 74.113.117.0/24 (7018 20442)
  74.113.117.0/24      7018 20442           - Withdrawn - aggregated with 74.113.116.0/24 (7018 20442)
  74.113.118.0/24      293 3356 46887 20442   
  74.113.119.0/24      7018 20442             
  75.5.201.0/24        7018 20442             
  192.131.129.0/24     7018 20442             
  192.152.148.0/23     7018 20442           + Announce - aggregate of 192.152.148.0/24 (7018 20442) and 192.152.149.0/24 (7018 20442)
  192.152.148.0/24     7018 20442           - Withdrawn - aggregated with 192.152.149.0/24 (7018 20442)
  192.152.149.0/24     7018 20442           - Withdrawn - aggregated with 192.152.148.0/24 (7018 20442)
  192.152.150.0/24     7018 1299 46887 20442 20442 20442 20442 20442 20442 20442   
  204.60.50.0/23       7018 20442           + Announce - aggregate of 204.60.50.0/24 (7018 20442) and 204.60.51.0/24 (7018 20442)
  204.60.50.0/24       7018 20442           - Withdrawn - aggregated with 204.60.51.0/24 (7018 20442)
  204.60.51.0/24       7018 20442           - Withdrawn - aggregated with 204.60.50.0/24 (7018 20442)
  204.60.184.0/22      7018 20442           + Announce - aggregate of 204.60.184.0/23 (7018 20442) and 204.60.186.0/23 (7018 20442)
  204.60.184.0/24      7018 20442           - Withdrawn - aggregated with 204.60.185.0/24 (7018 20442)
  204.60.185.0/24      7018 20442           - Withdrawn - aggregated with 204.60.184.0/24 (7018 20442)
  204.60.186.0/24      7018 20442           - Withdrawn - aggregated with 204.60.187.0/24 (7018 20442)
  204.60.187.0/24      7018 20442           - Withdrawn - aggregated with 204.60.186.0/24 (7018 20442)
  204.90.81.0/24       7018 20442             
  205.167.18.0/23      7018 20442           + Announce - aggregate of 205.167.18.0/24 (7018 20442) and 205.167.19.0/24 (7018 20442)
  205.167.18.0/24      7018 20442           - Withdrawn - aggregated with 205.167.19.0/24 (7018 20442)
  205.167.19.0/24      7018 20442           - Withdrawn - aggregated with 205.167.18.0/24 (7018 20442)

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

AS20442   25 More Specifics   30 Total Advertisements   YNHHSC, US
    64.252.240.0/24               64.252.192.0/18
    64.252.241.0/24               64.252.192.0/18
    64.252.242.0/24               64.252.192.0/18
    64.252.243.0/24               64.252.192.0/18
    64.252.244.0/24               64.252.192.0/18
    64.252.245.0/24               64.252.192.0/18
    64.252.246.0/24               64.252.192.0/18
    64.252.247.0/24               64.252.192.0/18
    74.113.112.0/24               74.113.112.0/21
    74.113.113.0/24               74.113.112.0/21
    74.113.114.0/24               74.113.112.0/21
    74.113.115.0/24               74.113.112.0/21
    74.113.116.0/24               74.113.112.0/21
    74.113.117.0/24               74.113.112.0/21
    74.113.118.0/24               74.113.112.0/21
    74.113.119.0/24               74.113.112.0/21
    75.5.201.0/24                 75.4.0.0/14
    204.60.50.0/24                204.60.0.0/16
    204.60.51.0/24                204.60.0.0/16
    204.60.184.0/24               204.60.0.0/16
    204.60.185.0/24               204.60.0.0/16
    204.60.186.0/24               204.60.0.0/16
    204.60.187.0/24               204.60.0.0/16
    205.167.18.0/24               205.167.18.0/23
    205.167.19.0/24               205.167.18.0/23

Whois Entry

whois: 402590

IANA has recorded AS20442 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS20442\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:       20442
             ASName:         YNHHSC
             ASHandle:       AS20442
             RegDate:        2007-09-10
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/20442
             
             
             OrgName:        Yale-New Haven Health Services Corporation
             OrgId:          YHHSC-1
             Address:        789 Howard Avenue
             City:           New Haven
             StateProv:      CT
             PostalCode:     06519
             Country:        US
             RegDate:        2007-06-26
             Updated:        2026-05-21
             Ref:            https://rdap.arin.net/registry/entity/YHHSC-1
             
             
             OrgDNSHandle: STONE463-ARIN
             OrgDNSName:   Stone, Anthony 
             OrgDNSPhone:  +1-860-912-4476 
             OrgDNSEmail:  anthony.stone@ynhh.org
             OrgDNSRef:    https://rdap.arin.net/registry/entity/STONE463-ARIN
             
             OrgRoutingHandle: STONE463-ARIN
             OrgRoutingName:   Stone, Anthony 
             OrgRoutingPhone:  +1-860-912-4476 
             OrgRoutingEmail:  anthony.stone@ynhh.org
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/STONE463-ARIN
             
             OrgNOCHandle: NETWO1789-ARIN
             OrgNOCName:   Network Operations
             OrgNOCPhone:  +1-203-688-2428 
             OrgNOCEmail:  LIST_Network@ynhh.org
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO1789-ARIN
             
             OrgTechHandle: STONE463-ARIN
             OrgTechName:   Stone, Anthony 
             OrgTechPhone:  +1-860-912-4476 
             OrgTechEmail:  anthony.stone@ynhh.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/STONE463-ARIN
             
             OrgDNSHandle: ELDRE3-ARIN
             OrgDNSName:   Eldred, Don 
             OrgDNSPhone:  +1-475-210-2319 
             OrgDNSEmail:  donald.eldred@ynhh.org
             OrgDNSRef:    https://rdap.arin.net/registry/entity/ELDRE3-ARIN
             
             OrgRoutingHandle: BOYER163-ARIN
             OrgRoutingName:   Boyer, Mark 
             OrgRoutingPhone:  +1-475-210-2318 
             OrgRoutingEmail:  mark.boyer@ynhh.org
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/BOYER163-ARIN
             
             OrgRoutingHandle: RBE133-ARIN
             OrgRoutingName:   Bellare, Rajeev 
             OrgRoutingPhone:  +1-203-688-2428 
             OrgRoutingEmail:  Raj.Bellare@ynhh.org
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/RBE133-ARIN
             
             OrgDNSHandle: RBE133-ARIN
             OrgDNSName:   Bellare, Rajeev 
             OrgDNSPhone:  +1-203-688-2428 
             OrgDNSEmail:  Raj.Bellare@ynhh.org
             OrgDNSRef:    https://rdap.arin.net/registry/entity/RBE133-ARIN
             
             OrgDNSHandle: BOYER163-ARIN
             OrgDNSName:   Boyer, Mark 
             OrgDNSPhone:  +1-475-210-2318 
             OrgDNSEmail:  mark.boyer@ynhh.org
             OrgDNSRef:    https://rdap.arin.net/registry/entity/BOYER163-ARIN
             
             OrgAbuseHandle: NETWO1789-ARIN
             OrgAbuseName:   Network Operations
             OrgAbusePhone:  +1-203-688-2428 
             OrgAbuseEmail:  LIST_Network@ynhh.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO1789-ARIN
             
             OrgTechHandle: BOYER163-ARIN
             OrgTechName:   Boyer, Mark 
             OrgTechPhone:  +1-475-210-2318 
             OrgTechEmail:  mark.boyer@ynhh.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/BOYER163-ARIN
             
             OrgTechHandle: ELDRE3-ARIN
             OrgTechName:   Eldred, Don 
             OrgTechPhone:  +1-475-210-2319 
             OrgTechEmail:  donald.eldred@ynhh.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/ELDRE3-ARIN
             
             OrgTechHandle: RBE133-ARIN
             OrgTechName:   Bellare, Rajeev 
             OrgTechPhone:  +1-203-688-2428 
             OrgTechEmail:  Raj.Bellare@ynhh.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/RBE133-ARIN
             
             RTechHandle: RBE133-ARIN
             RTechName:   Bellare, Rajeev 
             RTechPhone:  +1-203-688-2428 
             RTechEmail:  Raj.Bellare@ynhh.org
             RTechRef:    https://rdap.arin.net/registry/entity/RBE133-ARIN
             
             RNOCHandle: NETWO1789-ARIN
             RNOCName:   Network Operations
             RNOCPhone:  +1-203-688-2428 
             RNOCEmail:  LIST_Network@ynhh.org
             RNOCRef:    https://rdap.arin.net/registry/entity/NETWO1789-ARIN
             
             RAbuseHandle: NETWO1789-ARIN
             RAbuseName:   Network Operations
             RAbusePhone:  +1-203-688-2428 
             RAbuseEmail:  LIST_Network@ynhh.org
             RAbuseRef:    https://rdap.arin.net/registry/entity/NETWO1789-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.
             #