What is ASN AS133442?

ASN AS133442 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS133442?

AS133442 is listed under Monetary Authority Of Singapore.

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.

AS133442 Monetary Authority Of Singapore

ASN Lookup Tool

Search ASN

AS Data

IP Routes

Raw Whois

Parsed Whois

Peers

Upstreams

Downstreams

Contacts

Legacy Routes

Monetary Authority Of Singapore mas.gov.sg

SG 0 Routes

AS Data

AS133442

AS133442 – Monetary Authority Of Singapore

AS Number	133442
AS Name	MAOS-AS-AP
Organization	Monetary Authority Of Singapore(org-maos1-ap)
Country	SG
Website	mas.gov.sg
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	ISP
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS133442 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

Raw Whois Response

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

% Information related to 'AS133120 - AS133631'

as-block:       AS133120 - AS133631
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:  2013-09-11T23:52:15Z
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 'AS133442'

% Abuse contact for 'AS133442' is 'network_admins@mas.gov.sg'

aut-num:        AS133442
as-name:        MAOS-AS-AP
descr:          Monetary Authority Of Singapore
country:        SG
org:            ORG-MAOS1-AP
admin-c:        MAOS1-AP
tech-c:         MAOS1-AP
mnt-by:         APNIC-HM
mnt-irt:        IRT-MAOS-SG
mnt-routes:     MAINT-MAOS-SG
mnt-lower:      MAINT-MAOS-SG
abuse-c:        AM4224-AP
last-modified:  2026-03-16T00:47:54Z
source:         APNIC

irt:            IRT-MAOS-SG
address:        10 Shenton Way, Singapore Singapore 079117
e-mail:         network_admins@mas.gov.sg
abuse-mailbox:  network_admins@mas.gov.sg
admin-c:        MAOS1-AP
tech-c:         MAOS1-AP
auth:           # Filtered
mnt-by:         MAINT-MAOS-SG
last-modified:  2026-03-16T00:47:37Z
source:         APNIC

organisation:   ORG-MAOS1-AP
org-name:       Monetary Authority Of Singapore
org-type:       LIR
country:        SG
address:        10 Shenton Way
phone:          +65-6225-5577
e-mail:         chan_jyh_chyang@mas.gov.sg
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2025-12-18T13:37:51Z
source:         APNIC

role:           ABUSE MAOSSG
country:        ZZ
address:        10 Shenton Way, Singapore Singapore 079117
phone:          +000000000
e-mail:         network_admins@mas.gov.sg
admin-c:        MAOS1-AP
tech-c:         MAOS1-AP
nic-hdl:        AM4224-AP
remarks:        Generated from irt object IRT-MAOS-SG
abuse-mailbox:  network_admins@mas.gov.sg
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-16T00:47:54Z
source:         APNIC

role:           Monetary Authority Of Singapore administrator
address:        10 Shenton Way, Singapore Singapore 079117
country:        SG
phone:          +65-6225-5577
e-mail:         network_admins@mas.gov.sg
admin-c:        MAOS1-AP
tech-c:         MAOS1-AP
nic-hdl:        MAOS1-AP
mnt-by:         MAINT-MAOS-SG
last-modified:  2026-03-16T00:47:28Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-JP1)