Report for 23257

Name

IBMCCH-DAL-EQU - 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 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.

23257 IBMCCH-DAL-EQU, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS4755          TATACOMM-AS TATA Communications formerly VSNL is Leading ISP, IN

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
48849 AS23257        ORIGIN  Originate:        512 /23.00  Transit:          0 /0.00  IBMCCH-DAL-EQU, 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       %
36754 AS23257       IBMCCH-DAL-EQU, US                                 2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  129.41.178.0/24      3257 6453 4755 23257   
  129.41.179.0/24      7018 6453 4755 23257   

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

AS23257   2 More Specifics   2 Total Advertisements   IBMCCH-DAL-EQU, US
    129.41.178.0/24               129.41.178.0/23
    129.41.179.0/24               129.41.178.0/23

Whois Entry

whois: 402590

IANA has recorded AS23257 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS23257\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:       23257
             ASName:         IBMCCH-DAL-EQU
             ASHandle:       AS23257
             RegDate:        2002-02-15
             Updated:        2012-05-30
             Ref:            https://rdap.arin.net/registry/autnum/23257
             
             
             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:  +1-800-426-7378 
             OrgTechEmail:  ipreg@us.ibm.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/RAIN-ARIN
             
             OrgAbuseHandle: RAIN-ARIN
             OrgAbuseName:   Registrar Authority, Internet numbers
             OrgAbusePhone:  +1-800-426-7378 
             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.
             #