This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
whois: 402603
IANA has recorded AS4996 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS4996\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: 4996
ASName: SBI
ASHandle: AS4996
RegDate: 1995-05-31
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/4996
OrgName: Citigroup Inc.
OrgId: CITIGR-5
Address: 283 King George Rd
City: Warren
StateProv: NJ
PostalCode: 07059
Country: US
RegDate: 2002-05-24
Updated: 2026-03-24
Ref: https://rdap.arin.net/registry/entity/CITIGR-5
OrgTechHandle: PENAR13-ARIN
OrgTechName: Pena, Ray
OrgTechPhone: +1-631-712-7472
OrgTechEmail: raymond.i.pena@citi.com
OrgTechRef: https://rdap.arin.net/registry/entity/PENAR13-ARIN
OrgTechHandle: GLORI13-ARIN
OrgTechName: Gloria, Ana
OrgTechPhone: +1-855-384-4622
OrgTechEmail: ipbillingservices@citi.com
OrgTechRef: https://rdap.arin.net/registry/entity/GLORI13-ARIN
OrgAbuseHandle: ABUSE9564-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-855-384-4622
OrgAbuseEmail: domain.admin@citi.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE9564-ARIN
OrgTechHandle: WANGI-ARIN
OrgTechName: Wangin, Bartosz
OrgTechPhone: +48221282342
OrgTechEmail: bartosz.wangin@citi.com
OrgTechRef: https://rdap.arin.net/registry/entity/WANGI-ARIN
OrgTechHandle: CIS27-ARIN
OrgTechName: Citigroup IP Services
OrgTechPhone: +1-631-712-8024
OrgTechEmail: iptechservices@citi.com
OrgTechRef: https://rdap.arin.net/registry/entity/CIS27-ARIN
OrgTechHandle: EATON72-ARIN
OrgTechName: Eaton, Melissa
OrgTechPhone: +1-855-384-4622
OrgTechEmail: ipbillingservices@citi.com
OrgTechRef: https://rdap.arin.net/registry/entity/EATON72-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.
#