ASN Lookup Tool

Unisys Corporation unisys.com US US 2 Routes

AS Data

AS2021

AS2021 – Unisys Corporation

AS Number 2021
AS Name UNISYS-INT
Organization Unisys Corporation(unisys-4)
Country US
Website unisys.com
Number of IPv4 Routes 2
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 1992-11-03

ASN Intelligence API for production workflows

Use ASN data for AS2021 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
129.220.22.0/24 256
129.220.23.0/24 256

Raw Whois Response

#
# 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


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

OrgAbuseHandle: UNISY-ARIN
OrgAbuseName:   Unisys Hostmaster
OrgAbusePhone:  +1-443-921-0355 
OrgAbuseEmail:  hostmaster@unisys.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/UNISY-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.
#

Parsed Whois Response

Peers

AS Number Description Country
AS52925 Ascenty Data Centers e Telecomunicações S/A BR
AS2688 AT&T Enterprises, LLC US
AS52925 Ascenty Data Centers e Telecomunica��es S/A BR

Upstreams

AS Number Description Country
AS2688 AT&T Enterprises, LLC US
AS52925 Ascenty Data Centers e Telecomunica��es S/A BR

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Frequently Asked Questions

ASN AS2021 is an Autonomous System Number used to identify a network for BGP internet routing.
AS2021 is listed under Unisys Corporation.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.