asn.dev

Autonomous system

AS45938 NUCLEUS-CONNECT-SG 3 Tai Seng drive # 04-00

Unclassified APNIC

IPv4 addresses 2.30K 4 prefixes
IPv6 prefixes 3 counted as prefixes, not addresses
Countries 1 mostly SG
Exchanges 0 recorded by PCH
Upstreams 1 5 downstream
Flagged prefixes 0 none

Summary

Nucleus Connect

Singapore · AI-generated

telecom business sg starhub

NUCLEUS-CONNECT-SG is operated by Nucleus Connect Pte Ltd.

What it's used for

  • The address space carries business and enterprise connectivity, with netnames NUCLEUS-CONNECT-SG and SGCABLEVISION appearing in the registrant data.
  • The AS announces 2304 IPv4 addresses across 4 prefixes and 3 IPv6 prefixes, while maintaining 7 observed neighbours, a ratio consistent with a business access network.
  • As a wholly-owned subsidiary of StarHub, the traffic consists of enterprise and business customer connectivity within Singapore.

Notable

  • Registrants for the majority of the space are NUCLEUS CONNECT PTE LTD, while the 103.234.104.0/24 prefix is registered to StarHub Cable Vision Ltd.
  • Nucleus Connect is a wholly-owned subsidiary of StarHub, with its ICO obligations subsumed under StarHub Ltd effective 6 January 2025.
  • The inventory includes a mix of 180.222.x.x and 103.234.x.x blocks, with the latter associated with the StarHub Cable Vision brand.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 5 downstream and 11 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS4657StarHub Ltd630

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 4 prefixes · 2.30K addresses IPv6 3 prefixes

CountryNamePrefixes
SGSingapore7

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS45938
Registry name
NUCLEUS-CONNECT-SG
Registrant
Nucleus Connect Pte Ltd
Abuse contact
abuse@nucleusconnect.com
Registered
2009-10-19
Last changed
2020-08-05
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
92% valid · 11 valid, 1 with no ROA
ROAs
11 authorising AS45938
ASPA
no ASPA record
IRR
100% registered · 12 of 12 announcements
Route objects
12 naming AS45938

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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