Report for 2021

Name

UNISYS-INT - Unisys 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.

2021 UNISYS-INT - Unisys Corporation, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS52925         Ascenty Data Centers e Telecomunicacoes SA, BR
    AS2688          ATGS-MMD-AS - AT&T Enterprises, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
47780 AS2021         ORIGIN  Originate:        512 /23.00  Transit:          0 /0.00  UNISYS-INT - Unisys 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       %
31037 AS2021        UNISYS-INT - Unisys Corporation, US                2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  129.220.22.0/24      4777 2497 7018 2688 2021   
  129.220.23.0/24      4777 2497 3356 52925 2021 2021 2021 2021 2021 2021   

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

AS2021   2 More Specifics   2 Total Advertisements   UNISYS-INT - Unisys Corporation, US
    129.220.22.0/24               129.220.0.0/18
    129.220.23.0/24               129.220.0.0/18

Whois Entry

whois: 402332

IANA has recorded AS2021 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS2021\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:       2021
             ASName:         UNISYS-INT
             ASHandle:       AS2021
             RegDate:        1992-11-03
             Updated:        2012-06-01
             Ref:            https://rdap.arin.net/registry/autnum/2021
             
             
             OrgName:        Unisys Corporation
             OrgId:          UNISYS-4
             Address:        801 Lakeview Drive
             Address:        Ste 100
             City:           Blue Bell
             StateProv:      PA
             PostalCode:     19422
             Country:        US
             RegDate:        1989-09-14
             Updated:        2026-01-06
             Ref:            https://rdap.arin.net/registry/entity/UNISYS-4
             
             
             OrgAbuseHandle: UNISY-ARIN
             OrgAbuseName:   Unisys Hostmaster
             OrgAbusePhone:  +1-443-921-0355 
             OrgAbuseEmail:  hostmaster@unisys.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/UNISY-ARIN
             
             OrgTechHandle: UTC2-ARIN
             OrgTechName:   Unisys Technical Contact
             OrgTechPhone:  +1-877-661-0938 
             OrgTechEmail:  ugsiiocnetworkteamleads@unisys.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/UTC2-ARIN
             
             RTechHandle: UNISY-ARIN
             RTechName:   Unisys Hostmaster
             RTechPhone:  +1-443-921-0355 
             RTechEmail:  hostmaster@unisys.com
             RTechRef:    https://rdap.arin.net/registry/entity/UNISY-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.
             #