What is ASN AS142564?

ASN AS142564 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS142564?

AS142564 is listed under Citibank NA Singapore Branch.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS142564 Citibank NA Singapore Branch

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Citibank NA Singapore Branch citi.com

SG 0 Routes

AS Data

AS142564

AS142564 – Citibank NA Singapore Branch

AS Number	142564
AS Name	CNSB-AS-AP
Organization	Citibank NA Singapore Branch(org-cnsb1-ap)
Country	SG
Website	citi.com
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	APNIC
Date Allocated	N/A

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Raw Whois Response

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS141626 - AS142649'

as-block:       AS141626 - AS142649
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2020-10-21T04:09:48Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC

% Information related to 'AS142564'

% Abuse contact for 'AS142564' is 'alvic.david.arceo@citi.com'

aut-num:        AS142564
as-name:        CNSB-AS-AP
descr:          Citibank NA Singapore Branch
country:        SG
org:            ORG-CNSB1-AP
admin-c:        CNSB1-AP
tech-c:         CNSB1-AP
abuse-c:        AC2446-AP
mnt-lower:      MAINT-CNSB-SG
mnt-routes:     MAINT-CNSB-SG
mnt-by:         APNIC-HM
mnt-irt:        IRT-CNSB-SG
last-modified:  2021-06-28T03:45:24Z
source:         APNIC

irt:            IRT-CNSB-SG
address:        5 Changi Business Park Crescent
e-mail:         alvic.david.arceo@citi.com
abuse-mailbox:  alvic.david.arceo@citi.com
admin-c:        CNSB2-AP
tech-c:         CNSB2-AP
auth:           # Filtered
remarks:        alvic.david.arceo@citi.com was validated on 2026-01-19
mnt-by:         MAINT-CNSB-SG
last-modified:  2026-01-19T05:37:54Z
source:         APNIC

organisation:   ORG-CNSB1-AP
org-name:       Citibank NA Singapore Branch
org-type:       LIR
country:        SG
address:        5 Changi Business Park Crescent # 05
phone:          +65-6225-5225
e-mail:         head.customercare@citi.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:18:31Z
source:         APNIC

role:           ABUSE CNSBSG
country:        ZZ
address:        5 Changi Business Park Crescent
phone:          +000000000
e-mail:         alvic.david.arceo@citi.com
admin-c:        CNSB2-AP
tech-c:         CNSB2-AP
nic-hdl:        AC2446-AP
remarks:        Generated from irt object IRT-CNSB-SG
remarks:        alvic.david.arceo@citi.com was validated on 2026-01-19
abuse-mailbox:  alvic.david.arceo@citi.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-01-19T05:38:12Z
source:         APNIC

role:           Citibank NA Singapore Branch administrator
address:        5 Changi Business Park Crescent #05, Singapore Singapore 486027
country:        SG
phone:          +65-6225-5225
e-mail:         mar.apuhin@citi.com
admin-c:        CNSB2-AP
tech-c:         CNSB2-AP
nic-hdl:        CNSB1-AP
mnt-by:         MAINT-CNSB-SG
last-modified:  2026-01-16T03:02:58Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)