Organization
Nucleus Connect Pte Ltd
NUCLEUS-CONNECT-SG
Registered
Oct 19, 2009
17 years ago
IPv4 Prefixes
9
2,304 addresses
IPv6 Prefixes
3
3 × /48
BGP Neighbours
7
2 upstream/peer · 5 downstream
Registration
AS Number AS45938 AS Name NUCLEUS-CONNECT-SG Organization Nucleus Connect Pte Ltd Organization ID ORG-NCPL2-AP Address 67, Ubi Avenue 1, Country Singapore (SG) Registry APNIC Allocated Oct 19, 2009 Record Created Oct 19, 2009 Last Updated Aug 05, 2020 Status
active
WHOIS Server whois.apnic.net AS Description NUCLEUS-CONNECT-SG - 3 Tai Seng drive # 04-00, SG Remarks 3 Tai Seng drive Abuse Email [email protected] IPv4 Prefixes
9 prefixes · 2,304 addresses · 2 top-level Routing data as of 2026-10-07 00:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 103.234.104.0/24 | 103.234.104.0 – 103.234.104.255 | 256 |
| 180.222.128.0/21 | 180.222.128.0 – 180.222.135.255 | 2,048 |
| 180.222.128.0/24 | 180.222.128.0 – 180.222.128.255 | 256 |
| 180.222.129.0/24 | 180.222.129.0 – 180.222.129.255 | 256 |
| 180.222.130.0/24 | 180.222.130.0 – 180.222.130.255 | 256 |
| 180.222.131.0/24 | 180.222.131.0 – 180.222.131.255 | 256 |
| 180.222.132.0/24 | 180.222.132.0 – 180.222.132.255 | 256 |
| 180.222.133.0/24 | 180.222.133.0 – 180.222.133.255 | 256 |
| 180.222.135.0/24 | 180.222.135.0 – 180.222.135.255 | 256 |
IPv6 Prefixes
3 prefixes · 3 × /48 Routing data as of 2026-10-07 00:00 UTC
| Prefix | Addresses |
|---|---|
| 2402:5400:: | 280 |
| 2404:e801:101f:: | 280 |
| 2404:e801:201f:: | 280 |
BGP Neighbours
7 unique neighbours · 2 upstream/peer · 5 downstream. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Networks seen to the right of this AS in BGP paths — networks whose routes it carries, typically its customers (downstreams). Upstream & peer side (2)
Downstream side (5)
AS Name AS paths IPv4 sightings IPv6 sightings AS135008 GOVTECH-AS-GOVTECH - GOVERNMENT TECHNOLOGY AGENCY 799 4,963 314 AS133387 IDA-AS-IDAHQ-NG - GOVERNMENT TECHNOLOGY AGENCY 728 1,212 381 AS140592 GOVTECH-AS-WOG-NC - GOVERNMENT TECHNOLOGY AGENCY 276 1,064 0 AS132286 IDA-AS-SSCHQ - GOVERNMENT TECHNOLOGY AGENCY 261 1,079 0 AS136601 GT-GPC-AS-AP - GOVERNMENT TECHNOLOGY AGENCY 259 333 0
Raw RDAP Response
{
"rdapConformance": [
"history_version_0",
"nro_rdap_profile_0",
"nro_rdap_profile_asn_hierarchical_0",
"cidr0",
"rdap_level_0"
],
"notices": [
{
"title": "Source",
"description": [
"Objects returned came from source",
"APNIC"
]
},
{
"title": "Terms and Conditions",
"description": [
"This is the APNIC WHOIS Database query service. The objects are in RDAP format."
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/45938",
"rel": "terms-of-service",
"href": "http://www.apnic.net/db/dbcopyright.html",
"type": "text/html"
}
]
},
{
"title": "Whois Inaccuracy Reporting",
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/45938",
"rel": "inaccuracy-report",
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"type": "text/html"
}
]
}
],
"country": "SG",
"name": "NUCLEUS-CONNECT-SG",
"status": [
"active"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2009-10-19T00:45:08Z"
},
{
"eventAction": "last changed",
"eventDate": "2020-08-05T02:08:41Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/45938",
"rel": "self",
"href": "https://rdap.apnic.net/autnum/45938",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"3 Tai Seng drive"
],
"title": "description"
}
],
"entities": [
{
"roles": [
"abuse"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2011-02-28T14:23:24Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-06-22T01:35:54Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/45938",
"rel": "self",
"href": "https://rdap.apnic.net/entity/IRT-NUCLEUS-CONNECT-SG",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"[email protected] was validated on 2026-06-22"
],
"title": "remarks"
}
],
"handle": "IRT-NUCLEUS-CONNECT-SG",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-NUCLEUS-CONNECT-SG"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "67 Ubi Avenue 1,\nStarHub Green Building, Singapore 408942"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
},
{
"roles": [
"technical",
"administrative"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2009-10-14T01:02:00Z"
},
{
"eventAction": "last changed",
"eventDate": "2009-10-25T22:37:01Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/45938",
"rel": "self",
"href": "https://rdap.apnic.net/entity/NCPL2-AP",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"-----------------------------",
"Please send abuse reports to:",
"[email protected]",
"-----------------------------"
],
"title": "remarks"
}
],
"handle": "NCPL2-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"NUCLEUS CONNECT PTE LTD - network administrator"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "3 Tai Seng Drive,\nDa Vinci Building, Singapore 535216"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+65-6808-2888"
],
[
"tel",
{
"type": "fax"
},
"text",
"+65-6822-8800"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"roles": [
"registrant"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2017-08-08T23:28:14Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-07-28T13:01:49Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/45938",
"rel": "self",
"href": "https://rdap.apnic.net/entity/ORG-NCPL2-AP",
"type": "application/rdap+json"
}
],
"handle": "ORG-NCPL2-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Nucleus Connect Pte Ltd"
],
[
"kind",
{},
"text",
"org"
],
[
"adr",
{
"label": "67, Ubi Avenue 1,"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+6568082856"
],
[
"tel",
{
"type": "fax"
},
"text",
"+6568228800"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
}
],
"handle": "AS45938",
"startAutnum": 45938,
"endAutnum": 45938,
"objectClassName": "autnum",
"port43": "whois.apnic.net"
} Contact details of private individuals are redacted.