Report for 1637

Name

DNIC-AS-01637 - Headquarters, USAISC, 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 AS4637) 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.

1637 DNIC - DoD Network Information Center

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS27066   DDN-ASNBLK1 - DoD Network Information Center

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
2131  AS1637   ORIGIN  Originate:      68864 /15.93  Transit:          0 /0.00  DNIC - DoD Network Information Center

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       %
 4352 AS1637  DNIC - DoD Network Information Center        14      2      1     13      1   7.14%


  Prefix               AS Path                              Aggregation Suggestion
  143.46.0.0/16        4637 703 724 27066 27066 1637   
  155.6.5.0/24         4637 703 724 27066 27066 1637   
  155.6.10.0/24        4637 703 724 27066 27066 1637   
  155.6.23.0/24        4637 703 724 27066 27066 1637   
  155.6.30.0/24        4637 703 724 27066 27066 1637   
  155.6.110.0/24       4637 703 724 27066 27066 1637   
  155.6.141.0/24       4637 703 724 27066 27066 1637   
  192.138.78.0/24      4637 703 724 27066 27066 1637   
  198.250.217.0/24     4637 703 724 27066 27066 1637   
  198.250.218.0/23     4637 703 724 27066 27066 1637 + Announce - aggregate of 198.250.218.0/24 (4637 703 724 27066 27066 1637) and 198.250.219.0/24 (4637 703 724 27066 27066 1637)
  198.250.218.0/24     4637 703 724 27066 27066 1637 - Withdrawn - aggregated with 198.250.219.0/24 (4637 703 724 27066 27066 1637)
  198.250.219.0/24     4637 703 724 27066 27066 1637 - Withdrawn - aggregated with 198.250.218.0/24 (4637 703 724 27066 27066 1637)
  198.250.222.0/24     4637 703 724 27066 27066 1637   
  204.37.128.0/24      4637 703 724 27066 27066 1637   
  204.208.168.0/24     4637 703 724 27066 27066 1637   

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

AS1637   13 More Specifics   14 Total Advertisements   DNIC - DoD Network Information Center
    155.6.5.0/24                  155.6.0.0/16
    155.6.10.0/24                 155.6.0.0/16
    155.6.23.0/24                 155.6.0.0/16
    155.6.30.0/24                 155.6.0.0/16
    155.6.110.0/24                155.6.0.0/16
    155.6.141.0/24                155.6.0.0/16
    192.138.78.0/24               192.138.64.0/20
    198.250.217.0/24              198.250.0.0/16
    198.250.218.0/24              198.250.0.0/16
    198.250.219.0/24              198.250.0.0/16
    198.250.222.0/24              198.250.0.0/16
    204.37.128.0/24               204.34.0.0/14
    204.208.168.0/24              204.208.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS1637 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS1637\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:       1637
             ASName:         DNIC-AS-01637
             ASHandle:       AS1637
             RegDate:        2004-05-12
             Updated:        2011-08-24
             Ref:            https://rdap.arin.net/registry/autnum/1637
             
             
             OrgName:        Headquarters, USAISC
             OrgId:          HEADQU-3
             Address:        NETC-ANC CONUS TNOSC
             City:           Fort Huachuca
             StateProv:      AZ
             PostalCode:     85613
             Country:        US
             RegDate:        1990-03-26
             Updated:        2025-03-13
             Ref:            https://rdap.arin.net/registry/entity/HEADQU-3
             
             
             OrgAbuseHandle: REGIS10-ARIN
             OrgAbuseName:   Registration
             OrgAbusePhone:  +1-844-347-2457 
             OrgAbuseEmail:  disa.columbus.ns.mbx.arin-registrations@mail.mil
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/REGIS10-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.
             #