Report for 223

Name

AS223 - Parsons Corporation, 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.

223 AS223 - Parsons Corporation, US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS15830         Equinix - Equinix (EMEA) Acquisition Enterprises B.V., NL
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
18972 AS223          ORIGIN  Originate:       3328 /20.30  Transit:          0 /0.00  AS223 - Parsons Corporation, 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       %
15540 AS223         AS223 - Parsons Corporation, US                   12      2      0     10      2  16.67%


  Prefix               AS Path                              Aggregation Suggestion
  206.219.192.0/24     4777 2516 3356 223     
  206.219.195.0/24     4777 2516 3356 223     
  206.219.196.0/24     4777 2516 3356 223     
  206.219.198.0/24     4777 2497 6461 223     
  206.219.199.0/24     4777 2516 3356 223     
  206.219.200.0/23     4777 2516 3356 223     
  206.219.200.0/24     4777 2516 3356 223   - Withdrawn - matching aggregate 206.219.200.0/23 4777 2516 3356 223
  206.219.201.0/24     4777 2516 3356 223   - Withdrawn - matching aggregate 206.219.200.0/23 4777 2516 3356 223
  206.219.202.0/24     4777 2516 3356 223     
  209.128.238.0/24     4608 7575 1299 15830 223   
  209.128.239.0/24     4777 2497 6461 223     
  209.128.255.0/24     4777 2516 3356 223     

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

AS223   12 More Specifics   12 Total Advertisements   AS223 - Parsons Corporation, US
    206.219.192.0/24              206.219.192.0/18
    206.219.195.0/24              206.219.192.0/18
    206.219.196.0/24              206.219.192.0/18
    206.219.198.0/24              206.219.192.0/18
    206.219.199.0/24              206.219.192.0/18
    206.219.200.0/23              206.219.192.0/18
    206.219.200.0/24              206.219.192.0/18
    206.219.201.0/24              206.219.192.0/18
    206.219.202.0/24              206.219.192.0/18
    209.128.238.0/24              209.128.224.0/19
    209.128.239.0/24              209.128.224.0/19
    209.128.255.0/24              209.128.224.0/19
    209.128.254.0/24              209.128.224.0/19

Prefixes added and withdrawn by this origin AS in the past 7 days.

    - 209.128.254.0/24            Withdrawn

Whois Entry

whois: 402603

IANA has recorded AS223 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS223\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:       223
             ASName:         AS223
             ASHandle:       AS223
             RegDate:        1988-08-15
             Updated:        2015-07-02
             Ref:            https://rdap.arin.net/registry/autnum/223
             
             
             OrgName:        Parsons Corporation
             OrgId:          PCIP
             Address:        100 W. Walnut Street
             City:           Pasadena
             StateProv:      CA
             PostalCode:     91124
             Country:        US
             RegDate:        2011-06-16
             Updated:        2011-09-24
             Ref:            https://rdap.arin.net/registry/entity/PCIP
             
             
             OrgAbuseHandle: HO35-ORG-ARIN
             OrgAbuseName:   Hostmaster
             OrgAbusePhone:  +1-972-244-6199 
             OrgAbuseEmail:  Hostmaster@parsons.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/HO35-ORG-ARIN
             
             OrgTechHandle: HO35-ORG-ARIN
             OrgTechName:   Hostmaster
             OrgTechPhone:  +1-972-244-6199 
             OrgTechEmail:  Hostmaster@parsons.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/HO35-ORG-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.
             #