Report for 518

Name

DNIC-AS-00518 - United States Department of Defense (DoD), 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.

518 DNIC-AS-00518, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS668           DNIC-AS-00668, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
11175 AS518          ORIGIN  Originate:       8704 /18.91  Transit:          0 /0.00  DNIC-AS-00518, 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       %
 9751 AS518         DNIC-AS-00518, US                                 15      8      4     11      4  26.67%


  Prefix               AS Path                              Aggregation Suggestion
  199.9.178.0/23       11537 668 518          
  199.9.178.0/23       6939 668 518         + Announce - aggregate of 199.9.178.0/24 (6939 668 518) and 199.9.179.0/24 (6939 668 518)
  199.9.178.0/24       6939 668 518         - Withdrawn - aggregated with 199.9.179.0/24 (6939 668 518)
  199.9.179.0/24       6939 668 518         - Withdrawn - aggregated with 199.9.178.0/24 (6939 668 518)
  199.9.180.0/22       11537 668 518          
  199.9.180.0/23       6939 668 518         + Announce - aggregate of 199.9.180.0/24 (6939 668 518) and 199.9.181.0/24 (6939 668 518)
  199.9.180.0/24       6939 668 518         - Withdrawn - aggregated with 199.9.181.0/24 (6939 668 518)
  199.9.181.0/24       6939 668 518         - Withdrawn - aggregated with 199.9.180.0/24 (6939 668 518)
  199.9.224.0/23       11537 668 518          
  199.9.226.0/24       11537 668 518          
  199.9.228.0/23       293 668 518          + Announce - aggregate of 199.9.228.0/24 (293 668 518) and 199.9.229.0/24 (293 668 518)
  199.9.228.0/24       293 668 518          - Withdrawn - aggregated with 199.9.229.0/24 (293 668 518)
  199.9.229.0/24       293 668 518          - Withdrawn - aggregated with 199.9.228.0/24 (293 668 518)
  199.9.230.0/23       11537 668 518        + Announce - aggregate of 199.9.230.0/24 (11537 668 518) and 199.9.231.0/24 (11537 668 518)
  199.9.230.0/24       11537 668 518        - Withdrawn - aggregated with 199.9.231.0/24 (11537 668 518)
  199.9.231.0/24       11537 668 518        - Withdrawn - aggregated with 199.9.230.0/24 (11537 668 518)
  199.9.232.0/21       11537 668 518          
  199.9.240.0/21       11537 668 518          
  199.9.247.0/24       6939 668 518           

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

AS518   12 More Specifics   13 Total Advertisements   DNIC-AS-00518, US
    199.9.178.0/23                199.9.128.0/18
    199.9.178.0/24                199.9.128.0/18
    199.9.179.0/24                199.9.128.0/18
    199.9.180.0/22                199.9.128.0/18
    199.9.180.0/24                199.9.128.0/18
    199.9.181.0/24                199.9.128.0/18
    199.9.224.0/23                199.9.224.0/20
    199.9.228.0/24                199.9.224.0/20
    199.9.229.0/24                199.9.224.0/20
    199.9.230.0/24                199.9.224.0/20
    199.9.232.0/21                199.9.224.0/20
    199.9.247.0/24                199.9.240.0/21

Whois Entry

whois: 402603

IANA has recorded AS518 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS518\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:       518
             ASName:         DNIC-AS-00518
             ASHandle:       AS518
             RegDate:        1989-09-08
             Updated:        2025-09-12
             Ref:            https://rdap.arin.net/registry/autnum/518
             
             
             
             OrgName:        United States Department of Defense (DoD)
             OrgId:          USDDD
             Address:        3990 E. Broad Street
             City:           Columbus
             StateProv:      OH
             PostalCode:     43218
             Country:        US
             RegDate:        2007-01-12
             Updated:        2025-03-13
             Ref:            https://rdap.arin.net/registry/entity/USDDD
             
             
             OrgNOCHandle: MIL-HSTMST-ARIN
             OrgNOCName:   Network DoD
             OrgNOCPhone:  +1-844-347-2457 
             OrgNOCEmail:  disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
             OrgNOCRef:    https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN
             
             OrgTechHandle: MIL-HSTMST-ARIN
             OrgTechName:   Network DoD
             OrgTechPhone:  +1-844-347-2457 
             OrgTechEmail:  disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
             OrgTechRef:    https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN
             
             OrgAbuseHandle: MIL-HSTMST-ARIN
             OrgAbuseName:   Network DoD
             OrgAbusePhone:  +1-844-347-2457 
             OrgAbuseEmail:  disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN
             
             OrgTechHandle: REGIS10-ARIN
             OrgTechName:   Registration
             OrgTechPhone:  +1-844-347-2457 
             OrgTechEmail:  disa.columbus.ns.mbx.arin-registrations@mail.mil
             OrgTechRef:    https://rdap.arin.net/registry/entity/REGIS10-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.
             #