Report for 391

Name

AFCONC-BLOCK1-AS - Air Force Systems Networking, 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.

391 AFCONC-BLOCK1-AS - Headquarters Standard Systems Center

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS400     AFCONC-BLOCK1-AS - Headquarters Standard Systems Center

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
11735 AS391    ORIGIN  Originate:       2304 /20.83  Transit:          0 /0.00  AFCONC-BLOCK1-AS - Headquarters Standard Systems 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       %
 2350 AS391   AFCONC-BLOCK1-AS - Headquarters Standard      9      6      2      5      4  44.44%


  Prefix               AS Path                              Aggregation Suggestion
  131.15.49.0/24       4637 209 721 27064 27064 400 391   
  131.15.50.0/23       4637 209 721 27064 27064 400 391 + Announce - aggregate of 131.15.50.0/24 (4637 209 721 27064 27064 400 391) and 131.15.51.0/24 (4637 209 721 27064 27064 400 391)
  131.15.50.0/24       4637 209 721 27064 27064 400 391 - Withdrawn - aggregated with 131.15.51.0/24 (4637 209 721 27064 27064 400 391)
  131.15.51.0/24       4637 209 721 27064 27064 400 391 - Withdrawn - aggregated with 131.15.50.0/24 (4637 209 721 27064 27064 400 391)
  131.15.52.0/22       4637 209 721 27064 27064 400 391 + Announce - aggregate of 131.15.52.0/23 (4637 209 721 27064 27064 400 391) and 131.15.54.0/23 (4637 209 721 27064 27064 400 391)
  131.15.52.0/24       4637 209 721 27064 27064 400 391 - Withdrawn - aggregated with 131.15.53.0/24 (4637 209 721 27064 27064 400 391)
  131.15.53.0/24       4637 209 721 27064 27064 400 391 - Withdrawn - aggregated with 131.15.52.0/24 (4637 209 721 27064 27064 400 391)
  131.15.54.0/24       4637 209 721 27064 27064 400 391 - Withdrawn - aggregated with 131.15.55.0/24 (4637 209 721 27064 27064 400 391)
  131.15.55.0/24       4637 209 721 27064 27064 400 391 - Withdrawn - aggregated with 131.15.54.0/24 (4637 209 721 27064 27064 400 391)
  131.15.56.0/24       4637 209 721 400 391   
  131.15.57.0/24       4637 209 721 27064 27064 400 391   

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

AS391   9 More Specifics   9 Total Advertisements   AFCONC-BLOCK1-AS - Headquarters Standard Systems Center
    131.15.49.0/24                131.15.0.0/16
    131.15.50.0/24                131.15.0.0/16
    131.15.51.0/24                131.15.0.0/16
    131.15.52.0/24                131.15.0.0/16
    131.15.53.0/24                131.15.0.0/16
    131.15.54.0/24                131.15.0.0/16
    131.15.55.0/24                131.15.0.0/16
    131.15.56.0/24                131.15.0.0/16
    131.15.57.0/24                131.15.0.0/16

Whois Entry

whois: 402603

IANA has recorded AS391 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS391\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:       379 - 508
             ASName:         AFCONC-BLOCK1-AS
             ASHandle:       AS379
             RegDate:        1989-08-04
             Updated:        2008-06-06
             Ref:            https://rdap.arin.net/registry/autnum/379
             
             
             OrgName:        Air Force Systems Networking
             OrgId:          7ESG
             Address:        501 EAST MOORE DR. BLDG 884 RM 1100 GUNTHER ANNEX
             City:           MAXWELL AFB
             StateProv:      AL
             PostalCode:     36114
             Country:        US
             RegDate:        2008-06-05
             Updated:        2025-03-13
             Ref:            https://rdap.arin.net/registry/entity/7ESG
             
             
             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.
             #