Report for 138

Name

DNIC-AS-00138 - 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 AS2.0) 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.

138 DNIC-AS-00138 - United States Department of Defense (DoD), US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS27064         DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD), US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
1133  AS138          ORIGIN  Originate:     236288 /14.15  Transit:          0 /0.00  DNIC-AS-00138 - United States Department of Defense (DoD), 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       %
 9394 AS138         DNIC-AS-00138 - United States Department of D     18      8      4     14      4  22.22%


  Prefix               AS Path                              Aggregation Suggestion
  131.66.0.0/15        4777 2497 3356 721 721 27064 138 138 + Announce - aggregate of 131.66.0.0/16 (4777 2497 3356 721 721 27064 138 138) and 131.67.0.0/16 (4777 2497 3356 721 721 27064 138 138)
  131.66.0.0/16        4777 2497 3356 721 721 27064 138 138 - Withdrawn - aggregated with 131.67.0.0/16 (4777 2497 3356 721 721 27064 138 138)
  131.67.0.0/16        4777 2497 3356 721 721 27064 138 138 - Withdrawn - aggregated with 131.66.0.0/16 (4777 2497 3356 721 721 27064 138 138)
  131.68.0.0/16        4777 2516 3356 721 721 27064 138 138   
  141.234.0.0/17       4777 2516 3356 721 721 27064 138 138 + Announce - aggregate of 141.234.0.0/18 (4777 2516 3356 721 721 27064 138 138) and 141.234.64.0/18 (4777 2516 3356 721 721 27064 138 138)
  141.234.0.0/18       4777 2516 3356 721 721 27064 138 138 - Withdrawn - aggregated with 141.234.64.0/18 (4777 2516 3356 721 721 27064 138 138)
  141.234.64.0/18      4777 2516 3356 721 721 27064 138 138 - Withdrawn - aggregated with 141.234.0.0/18 (4777 2516 3356 721 721 27064 138 138)
  144.183.15.0/24      4777 2497 3356 721 721 27064 138 138   
  144.183.16.0/23      4777 2497 3356 721 721 27064 138 138 + Announce - aggregate of 144.183.16.0/24 (4777 2497 3356 721 721 27064 138 138) and 144.183.17.0/24 (4777 2497 3356 721 721 27064 138 138)
  144.183.16.0/24      4777 2497 3356 721 721 27064 138 138 - Withdrawn - aggregated with 144.183.17.0/24 (4777 2497 3356 721 721 27064 138 138)
  144.183.17.0/24      4777 2497 3356 721 721 27064 138 138 - Withdrawn - aggregated with 144.183.16.0/24 (4777 2497 3356 721 721 27064 138 138)
  144.183.20.0/24      4777 2497 3356 721 721 27064 138 138   
  144.183.32.0/22      4777 2497 3356 721 721 27064 138 138   
  144.183.127.0/24     4777 2497 3356 721 721 27064 138 138   
  144.183.128.0/23     4777 2497 3356 721 721 27064 138 138   
  144.183.130.0/23     4777 2516 3356 721 721 27064 138 138 + Announce - aggregate of 144.183.130.0/24 (4777 2516 3356 721 721 27064 138 138) and 144.183.131.0/24 (4777 2516 3356 721 721 27064 138 138)
  144.183.130.0/24     4777 2516 3356 721 721 27064 138 138 - Withdrawn - aggregated with 144.183.131.0/24 (4777 2516 3356 721 721 27064 138 138)
  144.183.131.0/24     4777 2516 3356 721 721 27064 138 138 - Withdrawn - aggregated with 144.183.130.0/24 (4777 2516 3356 721 721 27064 138 138)
  144.183.196.0/22     4777 2497 3356 721 721 27064 138 138   
  144.183.200.0/21     4777 2497 3356 721 721 27064 138 138   
  144.183.216.0/24     4777 2516 3356 721 721 27064 138 138   
  144.183.227.0/24     4777 2497 3356 721 721 27064 138 138   

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

AS138   15 More Specifics   18 Total Advertisements   DNIC-AS-00138 - United States Department of Defense (DoD), US
    141.234.0.0/18                141.234.0.0/16
    141.234.64.0/18               141.234.0.0/16
    144.183.15.0/24               144.183.0.0/16
    144.183.16.0/24               144.183.0.0/16
    144.183.17.0/24               144.183.0.0/16
    144.183.20.0/24               144.183.0.0/16
    144.183.32.0/22               144.183.0.0/16
    144.183.127.0/24              144.183.0.0/16
    144.183.128.0/23              144.183.0.0/16
    144.183.130.0/24              144.183.0.0/16
    144.183.131.0/24              144.183.0.0/16
    144.183.196.0/22              144.183.0.0/16
    144.183.200.0/21              144.183.0.0/16
    144.183.216.0/24              144.183.0.0/16
    144.183.227.0/24              144.183.0.0/16

Whois Entry

whois: 402603

IANA has recorded AS138 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS138\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:       138
             ASName:         DNIC-AS-00138
             ASHandle:       AS138
             RegDate:        1987-11-11
             Updated:        2025-09-12
             Ref:            https://rdap.arin.net/registry/autnum/138
             
             
             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.
             #