Report for 1526

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.

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

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS27064   DDN-ASNBLK1 - DoD Network Information Center

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
13366 AS1526   ORIGIN  Originate:       1536 /21.42  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       %
 2827 AS1526  CTNOSC-ASNBLK-1522-1526 - Headquarters,       6      4      1      3      3  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  198.97.180.0/24      4637 209 721 27064 27064 1526   
  199.123.71.0/24      4637 209 721 27064 27064 1526   
  199.123.72.0/22      4637 209 721 27064 27064 1526 + Announce - aggregate of 199.123.72.0/23 (4637 209 721 27064 27064 1526) and 199.123.74.0/23 (4637 209 721 27064 27064 1526)
  199.123.72.0/24      4637 209 721 27064 27064 1526 - Withdrawn - aggregated with 199.123.73.0/24 (4637 209 721 27064 27064 1526)
  199.123.73.0/24      4637 209 721 27064 27064 1526 - Withdrawn - aggregated with 199.123.72.0/24 (4637 209 721 27064 27064 1526)
  199.123.74.0/24      4637 209 721 27064 27064 1526 - Withdrawn - aggregated with 199.123.75.0/24 (4637 209 721 27064 27064 1526)
  199.123.75.0/24      4637 209 721 27064 27064 1526 - Withdrawn - aggregated with 199.123.74.0/24 (4637 209 721 27064 27064 1526)

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

AS1526   5 More Specifics   6 Total Advertisements   CTNOSC-ASNBLK-1522-1526 - Headquarters, USAAISC
    198.97.180.0/24               198.97.180.0/22
    199.123.72.0/24               199.123.72.0/22
    199.123.73.0/24               199.123.72.0/22
    199.123.74.0/24               199.123.72.0/22
    199.123.75.0/24               199.123.72.0/22

Whois Entry

whois: 402332

IANA has recorded AS1526 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS1526\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
             
             
             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.
             #