Report for 11975

Name

WM - The College of William and Mary, 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.

11975 WM, US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS174           COGENT-174, US
    AS3356          LEVEL3, US
    AS40220         MARIA, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
1021  AS11975        ORIGIN  Originate:     270848 /13.95  Transit:          0 /0.00  WM, 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       %
 8546 AS11975       WM, US                                             9      5      0      4      5  55.56%


  Prefix               AS Path                              Aggregation Suggestion
  128.239.0.0/16       11537 40220 11975      
  128.239.0.0/17       11537 40220 11975    - Withdrawn - matching aggregate 128.239.0.0/16 11537 40220 11975
  128.239.1.0/24       6939 3356 11975 11975 11975   
  128.239.33.0/24      11537 40220 11975    - Withdrawn - matching aggregate 128.239.0.0/16 11537 40220 11975
  128.239.128.0/17     11537 40220 11975    - Withdrawn - matching aggregate 128.239.0.0/16 11537 40220 11975
  139.70.0.0/16        11537 40220 11975      
  139.70.0.0/17        11537 40220 11975    - Withdrawn - matching aggregate 139.70.0.0/16 11537 40220 11975
  139.70.128.0/17      11537 40220 11975    - Withdrawn - matching aggregate 139.70.0.0/16 11537 40220 11975
  139.70.224.0/19      6939 3356 11975        

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

AS11975   5 More Specifics   7 Total Advertisements   WM, US
    128.239.0.0/17                128.239.0.0/16
    128.239.128.0/17              128.239.0.0/16
    139.70.0.0/17                 139.70.0.0/16
    139.70.128.0/17               139.70.0.0/16
    139.70.224.0/19               139.70.0.0/16
    128.239.1.0/24                128.239.0.0/16

Prefixes added and withdrawn by this origin AS in the past 7 days.

    - 128.239.1.0/24              Withdrawn

Whois Entry

whois: 402590

IANA has recorded AS11975 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS11975\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:       11975
             ASName:         WM
             ASHandle:       AS11975
             RegDate:        1999-02-18
             Updated:        2022-01-05
             Ref:            https://rdap.arin.net/registry/autnum/11975
             
             
             OrgName:        The College of William and Mary
             OrgId:          CWM-11
             Address:        150 Blow Memorial Hall
             City:           Williamsburg
             StateProv:      VA
             PostalCode:     23187
             Country:        US
             RegDate:        1999-02-18
             Updated:        2022-01-05
             Ref:            https://rdap.arin.net/registry/entity/CWM-11
             
             
             OrgTechHandle: WMIT-ARIN
             OrgTechName:   WMIT
             OrgTechPhone:  +1-757-221-3000 
             OrgTechEmail:  dns@lists.wm.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/WMIT-ARIN
             
             OrgAbuseHandle: ABUSE5074-ARIN
             OrgAbuseName:   Abuse
             OrgAbusePhone:  +1-757-221-3000 
             OrgAbuseEmail:  abuse@wm.edu
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE5074-ARIN
             
             OrgNOCHandle: WMIT-ARIN
             OrgNOCName:   WMIT
             OrgNOCPhone:  +1-757-221-3000 
             OrgNOCEmail:  dns@lists.wm.edu
             OrgNOCRef:    https://rdap.arin.net/registry/entity/WMIT-ARIN
             
             OrgDNSHandle: WMIT-ARIN
             OrgDNSName:   WMIT
             OrgDNSPhone:  +1-757-221-3000 
             OrgDNSEmail:  dns@lists.wm.edu
             OrgDNSRef:    https://rdap.arin.net/registry/entity/WMIT-ARIN
             
             OrgRoutingHandle: WMIT-ARIN
             OrgRoutingName:   WMIT
             OrgRoutingPhone:  +1-757-221-3000 
             OrgRoutingEmail:  dns@lists.wm.edu
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/WMIT-ARIN
             
             RTechHandle: WMIT-ARIN
             RTechName:   WMIT
             RTechPhone:  +1-757-221-3000 
             RTechEmail:  dns@lists.wm.edu
             RTechRef:    https://rdap.arin.net/registry/entity/WMIT-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.
             #