Report for 19

Name

LEIDOS-AS - Leidos, Inc., 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.

19 LEIDOS-AS - Leidos, Inc., US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS62            CONE - CyrusOne LLC, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
1071  AS19           ORIGIN  Originate:     258560 /14.02  Transit:          0 /0.00  LEIDOS-AS - Leidos, Inc., 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       %
 9376 AS19          LEIDOS-AS - Leidos, Inc., US                      24      6      2     20      4  16.67%


  Prefix               AS Path                              Aggregation Suggestion
  140.162.0.0/16       4777 2497 3356 19      
  140.162.8.0/22       4777 2497 3257 62 19 + Announce - aggregate of 140.162.8.0/23 (4777 2497 3257 62 19) and 140.162.10.0/23 (4777 2497 3257 62 19)
  140.162.8.0/23       4777 2497 3257 62 19 - Withdrawn - aggregated with 140.162.10.0/23 (4777 2497 3257 62 19)
  140.162.10.0/23      4777 2497 3257 62 19 - Withdrawn - aggregated with 140.162.8.0/23 (4777 2497 3257 62 19)
  140.162.12.0/23      4608 7575 6461 19 19   
  140.162.16.0/23      4777 2516 3356 19      
  140.162.24.0/21      4777 2497 3257 62 19   
  140.162.32.0/23      4608 7575 6461 19 19   
  140.162.40.0/21      4777 2497 3356 19    - Withdrawn - matching aggregate 140.162.0.0/16 4777 2497 3356 19
  140.162.48.0/22      4777 2497 3356 19    - Withdrawn - matching aggregate 140.162.0.0/16 4777 2497 3356 19
  140.162.64.0/18      4777 2497 3257 62 19   
  140.162.128.0/18     4777 2516 3356 19      
  140.162.191.0/24     4777 2497 3356 19      
  140.162.192.0/18     4777 2497 3257 62 19   
  140.162.255.0/24     4608 7575 6461 19 19   
  149.8.0.0/16         4777 2497 3257 62 19   
  149.8.0.0/16         4777 2497 3356 19    + Announce - aggregate of 149.8.0.0/17 (4777 2497 3356 19) and 149.8.128.0/17 (4777 2497 3356 19)
  149.8.0.0/17         4777 2497 3356 19    - Withdrawn - aggregated with 149.8.128.0/17 (4777 2497 3356 19)
  149.8.46.0/23        4608 7575 6461 19 19   
  149.8.128.0/17       4777 2497 3356 19    - Withdrawn - aggregated with 149.8.0.0/17 (4777 2497 3356 19)
  192.5.8.0/24         4777 2497 3257 62 19   
  192.33.134.0/24      4777 2497 3356 19      
  192.131.125.0/24     4777 2497 3356 19      
  192.132.104.0/24     4777 2497 3257 62 19   
  204.115.176.0/21     4777 2497 3356 19      
  205.153.240.0/22     4777 2497 3356 19      

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

AS19   16 More Specifics   24 Total Advertisements   LEIDOS-AS - Leidos, Inc., US
    140.162.8.0/23                140.162.0.0/16
    140.162.10.0/23               140.162.0.0/16
    140.162.12.0/23               140.162.0.0/16
    140.162.16.0/23               140.162.0.0/16
    140.162.24.0/21               140.162.0.0/16
    140.162.32.0/23               140.162.0.0/16
    140.162.40.0/21               140.162.0.0/16
    140.162.48.0/22               140.162.0.0/16
    140.162.64.0/18               140.162.0.0/16
    140.162.128.0/18              140.162.0.0/16
    140.162.191.0/24              140.162.0.0/16
    140.162.192.0/18              140.162.0.0/16
    140.162.255.0/24              140.162.0.0/16
    149.8.0.0/17                  149.8.0.0/16
    149.8.46.0/23                 149.8.0.0/16
    149.8.128.0/17                149.8.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS19 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS19\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:       19
             ASName:         LEIDOS-AS
             ASHandle:       AS19
             RegDate:        1984-07-27
             Updated:        2026-03-05
             Ref:            https://rdap.arin.net/registry/autnum/19
             
             
             OrgName:        Leidos, Inc.
             OrgId:          LEIDO
             Address:        1750 Presidents Street
             City:           Reston
             StateProv:      VA
             PostalCode:     20190
             Country:        US
             RegDate:        2013-10-31
             Updated:        2026-02-12
             Ref:            https://rdap.arin.net/registry/entity/LEIDO
             
             
             OrgTechHandle: MAJ32-ARIN
             OrgTechName:   Jenkins, Michael A.
             OrgTechPhone:  +1-407-276-7137 
             OrgTechEmail:  michael.a.jenkins-2@leidos.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/MAJ32-ARIN
             
             OrgAbuseHandle: LEIDO-ARIN
             OrgAbuseName:   Leidos NOC
             OrgAbusePhone:  +1-571-526-6640 
             OrgAbuseEmail:  L_Network-Operations@Leidos.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/LEIDO-ARIN
             
             RTechHandle: LNE68-ARIN
             RTechName:   Leidos Network Engineering
             RTechPhone:  +1-855-953-4367 
             RTechEmail:  L_neteng1@leidos.com
             RTechRef:    https://rdap.arin.net/registry/entity/LNE68-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.
             #