Report for 23237

Name

MCMASTER - McMaster University, CA

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.

23237 MCMASTER, CA

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS7992          COGECOWAVE, CA
    AS26677         ORION-ASN, CA

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
3380  AS23237        ORIGIN  Originate:      66304 /15.98  Transit:          0 /0.00  MCMASTER, CA

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       %
21597 AS23237       MCMASTER, CA                                       4      1      0      3      1  25.00%


  Prefix               AS Path                              Aggregation Suggestion
  130.113.0.0/16       22652 26677 23237      
  130.113.109.0/24     22652 26677 23237    - Withdrawn - matching aggregate 130.113.0.0/16 22652 26677 23237
  192.42.5.0/24        22652 26677 23237      
  192.42.6.0/24        22652 26677 23237      

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

AS23237   1 More Specifics   4 Total Advertisements   MCMASTER, CA
    130.113.109.0/24              130.113.0.0/16

Whois Entry

whois: 402603

IANA has recorded AS23237 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS23237\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:       23237
             ASName:         MCMASTER
             ASHandle:       AS23237
             RegDate:        2002-02-13
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/23237
             
             
             OrgName:        McMaster University
             OrgId:          MU
             Address:        1280 Main St. West
             City:           Hamilton
             StateProv:      ON
             PostalCode:     L8S-4M1
             Country:        CA
             RegDate:        1988-08-04
             Updated:        2025-10-14
             Ref:            https://rdap.arin.net/registry/entity/MU
             
             
             OrgAbuseHandle: MDD4-ARIN
             OrgAbuseName:   Diggins, Mike Donald
             OrgAbusePhone:  +1-905-525-9140 
             OrgAbuseEmail:  mike.diggins@mcmaster.ca
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/MDD4-ARIN
             
             OrgTechHandle: MDD4-ARIN
             OrgTechName:   Diggins, Mike Donald
             OrgTechPhone:  +1-905-525-9140 
             OrgTechEmail:  mike.diggins@mcmaster.ca
             OrgTechRef:    https://rdap.arin.net/registry/entity/MDD4-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.
             #