Report for 27336

Name

SENTARA-HEALTH-CARE - Sentara Healthcare, 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.

27336 SENTARA-HEALTH-CARE - Sentara Healthcare, US

  Adjacency:     4  Upstream:     4  Downstream:     0
  Upstream Adjacent AS list
    AS22773         ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
    AS7795          LUMOS - LUMOS Networks, Inc., US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS33657         CMCS - Comcast Cable Communications, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
2912  AS27336        ORIGIN  Originate:      73216 /15.84  Transit:          0 /0.00  SENTARA-HEALTH-CARE - Sentara Healthcare, 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       %
 3130 AS27336       SENTARA-HEALTH-CARE - Sentara Healthcare, US      23     17      0      6     17  73.91%


  Prefix               AS Path                              Aggregation Suggestion
  163.230.0.0/16       4608 7575 1299 22773 27336   
  163.230.7.0/24       4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.58.0/24      4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.98.0/24      4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.99.0/24      4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.100.0/23     4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.199.0/24     4777 2516 7922 33657 27336   
  163.230.200.0/21     4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.200.0/24     4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.201.0/24     4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.205.0/24     4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.224.0/24     4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.236.0/24     4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.237.0/24     4777 2516 3356 27336   
  163.230.242.0/24     4608 7575 2914 7795 27336   
  163.230.248.0/24     4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.249.0/24     4608 7575 2914 7795 27336   
  163.230.250.0/24     4608 7575 2914 7795 27336   
  163.230.251.0/24     4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.252.0/24     4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.253.0/24     4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.254.0/24     4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336
  163.230.255.0/24     4608 7575 1299 22773 27336 - Withdrawn - matching aggregate 163.230.0.0/16 4608 7575 1299 22773 27336

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

AS27336   22 More Specifics   23 Total Advertisements   SENTARA-HEALTH-CARE - Sentara Healthcare, US
    163.230.7.0/24                163.230.0.0/16
    163.230.58.0/24               163.230.0.0/16
    163.230.98.0/24               163.230.0.0/16
    163.230.99.0/24               163.230.0.0/16
    163.230.100.0/23              163.230.0.0/16
    163.230.199.0/24              163.230.0.0/16
    163.230.200.0/21              163.230.0.0/16
    163.230.200.0/24              163.230.0.0/16
    163.230.201.0/24              163.230.0.0/16
    163.230.205.0/24              163.230.0.0/16
    163.230.224.0/24              163.230.0.0/16
    163.230.236.0/24              163.230.0.0/16
    163.230.237.0/24              163.230.0.0/16
    163.230.242.0/24              163.230.0.0/16
    163.230.248.0/24              163.230.0.0/16
    163.230.249.0/24              163.230.0.0/16
    163.230.250.0/24              163.230.0.0/16
    163.230.251.0/24              163.230.0.0/16
    163.230.252.0/24              163.230.0.0/16
    163.230.253.0/24              163.230.0.0/16
    163.230.254.0/24              163.230.0.0/16
    163.230.255.0/24              163.230.0.0/16

Whois Entry

whois: 402613

IANA has recorded AS27336 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS27336\n