Report for 1523

Name

DNIC-ASBLK-01522-01526 - 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.

1523 CTNOSC-ASNBLK-1522-1526 - Headquarters, USAAISC

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS721     DISA-ASNBLK - DoD Network Information Center
    AS27064   DDN-ASNBLK1 - DoD Network Information Center

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
8986  AS1523   ORIGIN  Originate:       4608 /19.83  Transit:          0 /0.00  CTNOSC-ASNBLK-1522-1526 - Headquarters, USAAISC

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       %
 2356 AS1523  CTNOSC-ASNBLK-1522-1526 - Headquarters,      18      8      4     14      4  22.22%


  Prefix               AS Path                              Aggregation Suggestion
  143.84.62.0/24       4637 209 721 27064 27064 1523   
  192.153.146.0/24     4637 209 721 27064 27064 1523   
  192.172.5.0/24       4637 209 721 1523      
  198.49.187.0/24      4637 209 721 1523      
  198.97.181.0/24      4637 209 721 1523      
  198.97.182.0/23      4637 209 721 1523    + Announce - aggregate of 198.97.182.0/24 (4637 209 721 1523) and 198.97.183.0/24 (4637 209 721 1523)
  198.97.182.0/24      4637 209 721 1523    - Withdrawn - aggregated with 198.97.183.0/24 (4637 209 721 1523)
  198.97.183.0/24      4637 209 721 1523    - Withdrawn - aggregated with 198.97.182.0/24 (4637 209 721 1523)
  198.97.184.0/23      4637 209 721 1523    + Announce - aggregate of 198.97.184.0/24 (4637 209 721 1523) and 198.97.185.0/24 (4637 209 721 1523)
  198.97.184.0/24      4637 209 721 1523    - Withdrawn - aggregated with 198.97.185.0/24 (4637 209 721 1523)
  198.97.185.0/24      4637 209 721 1523    - Withdrawn - aggregated with 198.97.184.0/24 (4637 209 721 1523)
  198.97.186.0/23      4637 209 721 27064 27064 1523 + Announce - aggregate of 198.97.186.0/24 (4637 209 721 27064 27064 1523) and 198.97.187.0/24 (4637 209 721 27064 27064 1523)
  198.97.186.0/24      4637 209 721 27064 27064 1523 - Withdrawn - aggregated with 198.97.187.0/24 (4637 209 721 27064 27064 1523)
  198.97.187.0/24      4637 209 721 27064 27064 1523 - Withdrawn - aggregated with 198.97.186.0/24 (4637 209 721 27064 27064 1523)
  198.97.188.0/23      4637 209 721 27064 27064 1523 + Announce - aggregate of 198.97.188.0/24 (4637 209 721 27064 27064 1523) and 198.97.189.0/24 (4637 209 721 27064 27064 1523)
  198.97.188.0/24      4637 209 721 27064 27064 1523 - Withdrawn - aggregated with 198.97.189.0/24 (4637 209 721 27064 27064 1523)
  198.97.189.0/24      4637 209 721 27064 27064 1523 - Withdrawn - aggregated with 198.97.188.0/24 (4637 209 721 27064 27064 1523)
  198.97.190.0/24      4637 209 721 27064 27064 1523   
  199.10.57.0/24       4637 209 721 1523      
  199.123.81.0/24      4637 209 721 1523      
  199.209.96.0/24      4637 209 721 1523      
  204.37.187.0/24      4637 209 721 1523      

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

AS1523   15 More Specifics   19 Total Advertisements   CTNOSC-ASNBLK-1522-1526 - Headquarters, USAAISC
    143.84.62.0/24                143.84.0.0/16
    198.49.187.0/24               198.49.184.0/21
    198.97.181.0/24               198.97.180.0/22
    198.97.182.0/24               198.97.180.0/22
    198.97.183.0/24               198.97.180.0/22
    198.97.184.0/24               198.97.184.0/21
    198.97.185.0/24               198.97.184.0/21
    198.97.186.0/24               198.97.184.0/21
    198.97.187.0/24               198.97.184.0/21
    198.97.188.0/24               198.97.184.0/21
    198.97.189.0/24               198.97.184.0/21
    198.97.190.0/24               198.97.184.0/21
    199.209.95.0/24               199.208.0.0/14
    199.209.96.0/24               199.208.0.0/14
    204.37.187.0/24               204.34.0.0/14

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

    + 199.209.95.0/24             Announced

Whois Entry

whois: 402603

IANA has recorded AS1523 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS1523\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:       1522 - 1526
             ASName:         DNIC-ASBLK-01522-01526
             ASHandle:       AS1522
             RegDate:        2004-05-12
             Updated:        2011-08-24
             Ref:            https://rdap.arin.net/registry/autnum/1522
             
             
             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
             
             
             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
             
             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
             
             
             #
             # 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.
             #