This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS21877 14 More Specifics 14 Total Advertisements CSC-USA-AS21877, US
15.176.32.0/20 15.176.0.0/16
15.176.48.0/24 15.176.0.0/16
20.132.0.0/20 20.132.0.0/15
20.132.0.0/21 20.132.0.0/15
20.132.1.0/24 20.132.0.0/15
20.132.230.0/24 20.132.0.0/15
20.132.247.0/24 20.132.0.0/15
20.137.176.0/21 20.137.0.0/16
20.137.184.0/21 20.137.0.0/16
20.137.184.0/22 20.137.0.0/16
20.137.188.0/22 20.137.0.0/16
192.46.114.0/23 192.46.112.0/20
199.196.56.0/24 199.196.32.0/19
199.196.63.0/24 199.196.32.0/19
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 20.132.1.0/24 Announced
+ 192.46.114.0/23 Announced
+ 199.196.56.0/24 Announced
+ 199.196.63.0/24 Announced
whois: 402609
IANA has recorded AS21877 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS21877\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: 21877
ASName: CSC-USA-AS21877
ASHandle: AS21877
RegDate: 2001-07-05
Updated: 2021-12-13
Ref: https://rdap.arin.net/registry/autnum/21877
OrgName: DXC US Latin America Corporation
OrgId: ESLAC
Address: 20408 Bashan Dr
City: Ashburn
StateProv: VA
PostalCode: 20147
Country: US
RegDate: 2018-05-17
Updated: 2023-09-20
Ref: https://rdap.arin.net/registry/entity/ESLAC
OrgAbuseHandle: DSIRCC-ARIN
OrgAbuseName: DXC Security Incident Response Control Centre
OrgAbusePhone: +1-703-245-9675
OrgAbuseEmail: abuse@dxc.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/DSIRCC-ARIN
OrgNOCHandle: ESIPA-ARIN
OrgNOCName: ES IPADDR
OrgNOCPhone: +1-800-524-7638
OrgNOCEmail: ipaddr@dxc.com
OrgNOCRef: https://rdap.arin.net/registry/entity/ESIPA-ARIN
OrgTechHandle: ESIPA-ARIN
OrgTechName: ES IPADDR
OrgTechPhone: +1-800-524-7638
OrgTechEmail: ipaddr@dxc.com
OrgTechRef: https://rdap.arin.net/registry/entity/ESIPA-ARIN
OrgDNSHandle: ESIPA-ARIN
OrgDNSName: ES IPADDR
OrgDNSPhone: +1-800-524-7638
OrgDNSEmail: ipaddr@dxc.com
OrgDNSRef: https://rdap.arin.net/registry/entity/ESIPA-ARIN
OrgRoutingHandle: ESIPA-ARIN
OrgRoutingName: ES IPADDR
OrgRoutingPhone: +1-800-524-7638
OrgRoutingEmail: ipaddr@dxc.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/ESIPA-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.
#