asn.dev

Autonomous system

AS37989 DCS1PTELTD-AS-AP DCS1 Pte. Ltd.

Hosting APNIC

IPv4 addresses 1.28K 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly SG
Exchanges 1 recorded by PCH
Upstreams 8 375 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Singapore Internet ExchangeSingapore, Singapore103.16.102.91

Transit providers

8 upstream, 375 downstream and 500 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS56300MyRepublic Ltd.89
AS6939Hurricane Electric LLC51
AS24482SG.GS2
AS4913410VPN Research Network LTD2
AS212508Lowhosting services of Davide Gennari2
AS38001NewMedia Express Pte Ltd1
AS58057Securebit AG1
AS61292Blix Group AS1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 2 prefixes · 1.28K addresses IPv6 1 prefixes

CountryNamePrefixes
SGSingapore3

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS37989
Registry name
DCS1PTELTD-AS-AP
Registrant
DCS1 Pte. Ltd.
Abuse contact
noc@dcs1.biz
Registered
2025-04-22
Last changed
2026-10-08
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
67% valid · 2 valid, 1 with no ROA
ROAs
3 authorising AS37989
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
12 naming AS37989

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,782 prefixes, as published 2026-10-16. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check