Report for 393847

Name

AAMC-AS1 - Association of American Medical Colleges, 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.

393847 AAMC-AS1, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461, US
    AS3356          LEVEL3, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
47560 AS393847       ORIGIN  Originate:        768 /22.42  Transit:          0 /0.00  AAMC-AS1, 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       %
29951 AS393847      AAMC-AS1, US                                       3      2      1      2      1  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  143.220.32.0/23      6939 3356 393847     + Announce - aggregate of 143.220.32.0/24 (6939 3356 393847) and 143.220.33.0/24 (6939 3356 393847)
  143.220.32.0/24      6939 3356 393847     - Withdrawn - aggregated with 143.220.33.0/24 (6939 3356 393847)
  143.220.33.0/24      6939 3356 393847     - Withdrawn - aggregated with 143.220.32.0/24 (6939 3356 393847)
  143.220.254.0/24     6939 3356 393847       

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

AS393847   8 More Specifics   8 Total Advertisements   AAMC-AS1, US
    143.220.13.0/24               143.220.0.0/16
    143.220.15.0/24               143.220.0.0/16
    143.220.17.0/24               143.220.0.0/16
    143.220.18.0/24               143.220.0.0/16
    143.220.32.0/24               143.220.0.0/16
    143.220.33.0/24               143.220.0.0/16
    143.220.254.0/24              143.220.0.0/16
    143.220.255.0/24              143.220.0.0/16

Prefixes added and withdrawn by this origin AS in the past 7 days.

    + 143.220.13.0/24             Announced
    + 143.220.15.0/24             Announced
    + 143.220.17.0/24             Announced
    + 143.220.18.0/24             Announced
    + 143.220.255.0/24            Announced

Whois Entry

whois: 402549

IANA has recorded AS393847 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS393847\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:       393847
             ASName:         AAMC-AS1
             ASHandle:       AS393847
             RegDate:        2018-03-30
             Updated:        2018-03-30
             Ref:            https://rdap.arin.net/registry/autnum/393847
             
             
             OrgName:        Association of American Medical Colleges
             OrgId:          AAMC
             Address:        655 K Street, NW
             City:           WASHINGTON
             StateProv:      DC
             PostalCode:     20001
             Country:        US
             RegDate:        1990-06-30
             Updated:        2018-01-16
             Ref:            https://rdap.arin.net/registry/entity/AAMC
             
             
             OrgAbuseHandle: VMO38-ARIN
             OrgAbuseName:   Vendor management office
             OrgAbusePhone:  +1-202-828-0400 
             OrgAbuseEmail:  dnsadministrator@aamc.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/VMO38-ARIN
             
             OrgTechHandle: VMO38-ARIN
             OrgTechName:   Vendor management office
             OrgTechPhone:  +1-202-828-0400 
             OrgTechEmail:  dnsadministrator@aamc.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/VMO38-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.
             #