Report for 18862

Name

NCS-HEALTHCARE - Omnicare, Inc., 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.

18862 NCS-HEALTHCARE - Omnicare, Inc., US

  Adjacency:     4  Upstream:     4  Downstream:     0
  Upstream Adjacent AS list
    AS22773         ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS701           UUNET - Verizon Business, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
4819  AS18862        ORIGIN  Originate:      39424 /16.73  Transit:          0 /0.00  NCS-HEALTHCARE - Omnicare, Inc., 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       %
 8368 AS18862       NCS-HEALTHCARE - Omnicare, Inc., US               20      6      1     15      5  25.00%


  Prefix               AS Path                              Aggregation Suggestion
  12.15.144.0/24       4777 2497 7018 18862   
  74.116.80.0/22       4777 2497 3356 18862   
  74.116.83.0/24       4777 2516 3356 18862   
  152.145.168.0/24     4777 2497 3356 18862   
  152.145.172.0/24     4777 2497 3356 18862   
  152.145.182.0/24     4777 2516 3356 18862   
  152.145.223.0/24     4777 2497 7018 18862   
  152.145.224.0/24     4777 2497 7018 18862   
  152.145.240.0/24     4608 7575 1299 22773 18862   
  156.78.128.0/22      4777 2497 7018 18862 + Announce - aggregate of 156.78.128.0/23 (4777 2497 7018 18862) and 156.78.130.0/23 (4777 2497 7018 18862)
  156.78.128.0/23      4777 2497 7018 18862 - Withdrawn - aggregated with 156.78.130.0/23 (4777 2497 7018 18862)
  156.78.130.0/23      4777 2497 7018 18862 - Withdrawn - aggregated with 156.78.128.0/23 (4777 2497 7018 18862)
  192.160.146.0/24     4777 2497 7018 18862   
  204.14.128.0/23      4777 2497 7018 18862   
  204.99.0.0/17        4777 2497 7018 18862   
  204.99.13.0/24       4777 2497 7018 18862 - Withdrawn - matching aggregate 204.99.0.0/17 4777 2497 7018 18862
  204.99.18.0/24       4777 2497 7018 18862 - Withdrawn - matching aggregate 204.99.0.0/17 4777 2497 7018 18862
  204.99.19.0/24       4777 2497 7018 18862 - Withdrawn - matching aggregate 204.99.0.0/17 4777 2497 7018 18862
  204.99.22.0/23       4777 2516 701 18862    
  204.99.50.0/24       4777 2497 701 18862    
  204.99.118.0/24      4777 2497 7018 18862 - Withdrawn - matching aggregate 204.99.0.0/17 4777 2497 7018 18862

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

AS18862   17 More Specifics   20 Total Advertisements   NCS-HEALTHCARE - Omnicare, Inc., US
    12.15.144.0/24                12.0.0.0/8
    74.116.83.0/24                74.116.80.0/22
    152.145.168.0/24              152.145.0.0/16
    152.145.172.0/24              152.145.0.0/16
    152.145.182.0/24              152.145.0.0/16
    152.145.223.0/24              152.145.0.0/16
    152.145.224.0/24              152.145.0.0/16
    152.145.240.0/24              152.145.0.0/16
    156.78.128.0/23               156.78.0.0/16
    156.78.130.0/23               156.78.0.0/16
    204.14.128.0/23               204.14.128.0/22
    204.99.13.0/24                204.99.0.0/17
    204.99.18.0/24                204.99.0.0/17
    204.99.19.0/24                204.99.0.0/17
    204.99.22.0/23                204.99.0.0/17
    204.99.50.0/24                204.99.0.0/17
    204.99.118.0/24               204.99.0.0/17

Whois Entry

whois: 402591

IANA has recorded AS18862 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS18862\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:       18862
             ASName:         NCS-HEALTHCARE
             ASHandle:       AS18862
             RegDate:        2000-10-18
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/18862
             
             
             OrgName:        Omnicare, Inc.
             OrgId:          OMNIC-31
             Address:        4936 Blazer Parkway
             City:           Dublin
             StateProv:      OH
             PostalCode:     43017
             Country:        US
             RegDate:        2006-04-21
             Updated:        2020-03-19
             Ref:            https://rdap.arin.net/registry/entity/OMNIC-31
             
             
             OrgAbuseHandle: HOSTM190-ARIN
             OrgAbuseName:   HostMaster
             OrgAbusePhone:  +1-860-636-9898 
             OrgAbuseEmail:  hostmaster@aetna.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/HOSTM190-ARIN
             
             OrgTechHandle: HOSTM190-ARIN
             OrgTechName:   HostMaster
             OrgTechPhone:  +1-860-636-9898 
             OrgTechEmail:  hostmaster@aetna.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/HOSTM190-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.
             #