Report for 19604

Name

IBM-RALEIGH-CL - IBM, 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 AS4637) 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.

19604 IBMCCH-ATL-BS - IBM

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS6197    BATI-ATL - BellSouth Network Solutions, Inc

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
4147  AS19604  ORIGIN  Originate:      25600 /17.36  Transit:          0 /0.00  IBMCCH-ATL-BS - IBM

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       %
 1570 AS19604 IBMCCH-ATL-BS - IBM                          19     12      4     11      8  42.11%


  Prefix               AS Path                              Aggregation Suggestion
  65.82.152.0/21       4637 6389 6197 19604 + Announce - aggregate of 65.82.152.0/22 (4637 6389 6197 19604) and 65.82.156.0/22 (4637 6389 6197 19604)
  65.82.152.0/22       4637 6389 6197 19604 - Withdrawn - aggregated with 65.82.156.0/22 (4637 6389 6197 19604)
  65.82.156.0/22       4637 6389 6197 19604 - Withdrawn - aggregated with 65.82.152.0/22 (4637 6389 6197 19604)
  65.82.157.0/24       4637 6389 6197 19604 - Withdrawn - matching aggregate 65.82.156.0/22 4637 6389 6197 19604
  65.82.158.0/24       4637 6389 6197 19604 - Withdrawn - matching aggregate 65.82.156.0/22 4637 6389 6197 19604
  65.82.159.0/24       4637 6389 6197 19604 - Withdrawn - matching aggregate 65.82.156.0/22 4637 6389 6197 19604
  65.83.240.0/21       4637 6389 6197 19604 + Announce - aggregate of 65.83.240.0/22 (4637 6389 6197 19604) and 65.83.244.0/22 (4637 6389 6197 19604)
  65.83.240.0/22       4637 6389 6197 19604 - Withdrawn - aggregated with 65.83.244.0/22 (4637 6389 6197 19604)
  65.83.244.0/22       4637 6389 6197 19604 - Withdrawn - aggregated with 65.83.240.0/22 (4637 6389 6197 19604)
  65.83.252.0/22       4637 6389 6197 19604   
  65.83.254.0/24       4637 6389 6197 19604 - Withdrawn - matching aggregate 65.83.252.0/22 4637 6389 6197 19604
  67.32.112.0/21       4637 6389 6197 19604 + Announce - aggregate of 67.32.112.0/22 (4637 6389 6197 19604) and 67.32.116.0/22 (4637 6389 6197 19604)
  67.32.112.0/22       4637 6389 6197 19604 - Withdrawn - aggregated with 67.32.116.0/22 (4637 6389 6197 19604)
  67.32.116.0/22       4637 6389 6197 19604 - Withdrawn - aggregated with 67.32.112.0/22 (4637 6389 6197 19604)
  68.17.64.0/22        4637 6389 6197 19604   
  68.17.72.0/21        4637 6389 6197 19604 + Announce - aggregate of 68.17.72.0/22 (4637 6389 6197 19604) and 68.17.76.0/22 (4637 6389 6197 19604)
  68.17.72.0/22        4637 6389 6197 19604 - Withdrawn - aggregated with 68.17.76.0/22 (4637 6389 6197 19604)
  68.17.76.0/22        4637 6389 6197 19604 - Withdrawn - aggregated with 68.17.72.0/22 (4637 6389 6197 19604)
  129.41.224.0/19      4637 6389 6197 19604   
  170.224.216.0/21     4637 6389 6197 19604   
  208.62.88.0/22       4637 6389 6197 19604   
  208.63.156.0/22      4637 6389 6197 19604   
  209.55.0.0/21        4637 6389 6197 19604   

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

AS19604   19 More Specifics   19 Total Advertisements   IBMCCH-ATL-BS - IBM
    65.82.152.0/22                65.80.0.0/14
    65.82.156.0/22                65.80.0.0/14
    65.82.157.0/24                65.80.0.0/14
    65.82.158.0/24                65.80.0.0/14
    65.82.159.0/24                65.80.0.0/14
    65.83.240.0/22                65.80.0.0/14
    65.83.244.0/22                65.80.0.0/14
    65.83.252.0/22                65.80.0.0/14
    65.83.254.0/24                65.80.0.0/14
    67.32.112.0/22                67.32.0.0/14
    67.32.116.0/22                67.32.0.0/14
    68.17.64.0/22                 68.16.0.0/14
    68.17.72.0/22                 68.16.0.0/14
    68.17.76.0/22                 68.16.0.0/14
    129.41.224.0/19               129.41.0.0/16
    170.224.216.0/21              170.224.0.0/14
    208.62.88.0/22                208.60.0.0/14
    208.63.156.0/22               208.60.0.0/14
    209.55.0.0/21                 209.55.0.0/19

Whois Entry

whois: 402603

IANA has recorded AS19604 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS19604\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:       19604
             ASName:         IBM-RALEIGH-CL
             ASHandle:       AS19604
             RegDate:        2001-01-24
             Updated:        2015-03-25
             Ref:            https://rdap.arin.net/registry/autnum/19604
             
             
             OrgName:        IBM
             OrgId:          IBM-1
             Address:        3039 Cornwallis Road
             City:           Research Triangle Park
             StateProv:      NC
             PostalCode:     27709-2195
             Country:        US
             RegDate:        1992-02-08
             Updated:        2024-11-25
             Ref:            https://rdap.arin.net/registry/entity/IBM-1
             
             
             OrgTechHandle: RAIN-ARIN
             OrgTechName:   Registrar Authority, Internet numbers
             OrgTechPhone:  +1-512-308-4534 
             OrgTechEmail:  ipreg@us.ibm.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/RAIN-ARIN
             
             OrgAbuseHandle: RAIN-ARIN
             OrgAbuseName:   Registrar Authority, Internet numbers
             OrgAbusePhone:  +1-512-308-4534 
             OrgAbuseEmail:  ipreg@us.ibm.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/RAIN-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.
             #