Registration
IPv4 Prefixes
49 prefixes · 43,008 addresses · 23 top-level Routing data as of 2026-10-09 08:00 UTC
27.0.0.0/8 · 14 prefixes · 16,384 addresses
| Prefix | Range | Addresses |
|---|---|---|
| 27.147.0.0/21 | 27.147.0.0 – 27.147.7.255 | 2,048 |
| 27.147.0.0/22 | 27.147.0.0 – 27.147.3.255 | 1,024 |
| 27.147.4.0/22 | 27.147.4.0 – 27.147.7.255 | 1,024 |
| 27.147.8.0/21 | 27.147.8.0 – 27.147.15.255 | 2,048 |
| 27.147.8.0/22 | 27.147.8.0 – 27.147.11.255 | 1,024 |
| 27.147.16.0/21 | 27.147.16.0 – 27.147.23.255 | 2,048 |
| 27.147.24.0/21 | 27.147.24.0 – 27.147.31.255 | 2,048 |
| 27.147.24.0/22 | 27.147.24.0 – 27.147.27.255 | 1,024 |
| 27.147.32.0/21 | 27.147.32.0 – 27.147.39.255 | 2,048 |
| 27.147.40.0/21 | 27.147.40.0 – 27.147.47.255 | 2,048 |
| 27.147.44.0/22 | 27.147.44.0 – 27.147.47.255 | 1,024 |
| 27.147.48.0/21 | 27.147.48.0 – 27.147.55.255 | 2,048 |
| 27.147.56.0/21 | 27.147.56.0 – 27.147.63.255 | 2,048 |
| 27.147.60.0/22 | 27.147.60.0 – 27.147.63.255 | 1,024 |
45.0.0.0/8 · 1 prefix · 1,024 addresses
| Prefix | Range | Addresses |
|---|---|---|
| 45.64.232.0/22 | 45.64.232.0 – 45.64.235.255 | 1,024 |
61.0.0.0/8 · 14 prefixes · 8,192 addresses
| Prefix | Range | Addresses |
|---|---|---|
| 61.57.128.0/21 | 61.57.128.0 – 61.57.135.255 | 2,048 |
| 61.57.128.0/22 | 61.57.128.0 – 61.57.131.255 | 1,024 |
| 61.57.132.0/23 | 61.57.132.0 – 61.57.133.255 | 512 |
| 61.57.134.0/23 | 61.57.134.0 – 61.57.135.255 | 512 |
| 61.57.136.0/21 | 61.57.136.0 – 61.57.143.255 | 2,048 |
| 61.57.140.0/23 | 61.57.140.0 – 61.57.141.255 | 512 |
| 61.57.142.0/23 | 61.57.142.0 – 61.57.143.255 | 512 |
| 61.57.144.0/21 | 61.57.144.0 – 61.57.151.255 | 2,048 |
| 61.57.144.0/22 | 61.57.144.0 – 61.57.147.255 | 1,024 |
| 61.57.148.0/24 | 61.57.148.0 – 61.57.148.255 | 256 |
| 61.57.149.0/24 | 61.57.149.0 – 61.57.149.255 | 256 |
| 61.57.150.0/23 | 61.57.150.0 – 61.57.151.255 | 512 |
| 61.57.152.0/22 | 61.57.152.0 – 61.57.155.255 | 1,024 |
| 61.57.156.0/22 | 61.57.156.0 – 61.57.159.255 | 1,024 |
103.0.0.0/8 · 1 prefix · 1,024 addresses
| Prefix | Range | Addresses |
|---|---|---|
| 103.224.200.0/22 | 103.224.200.0 – 103.224.203.255 | 1,024 |
123.0.0.0/8 · 11 prefixes · 8,192 addresses
| Prefix | Range | Addresses |
|---|---|---|
| 123.50.32.0/21 | 123.50.32.0 – 123.50.39.255 | 2,048 |
| 123.50.40.0/21 | 123.50.40.0 – 123.50.47.255 | 2,048 |
| 123.50.44.0/22 | 123.50.44.0 – 123.50.47.255 | 1,024 |
| 123.50.48.0/21 | 123.50.48.0 – 123.50.55.255 | 2,048 |
| 123.50.56.0/21 | 123.50.56.0 – 123.50.63.255 | 2,048 |
| 123.50.56.0/23 | 123.50.56.0 – 123.50.57.255 | 512 |
| 123.50.58.0/24 | 123.50.58.0 – 123.50.58.255 | 256 |
| 123.50.59.0/24 | 123.50.59.0 – 123.50.59.255 | 256 |
| 123.50.60.0/24 | 123.50.60.0 – 123.50.60.255 | 256 |
| 123.50.61.0/24 | 123.50.61.0 – 123.50.61.255 | 256 |
| 123.50.62.0/23 | 123.50.62.0 – 123.50.63.255 | 512 |
124.0.0.0/8 · 8 prefixes · 8,192 addresses
| Prefix | Range | Addresses |
|---|---|---|
| 124.155.160.0/21 | 124.155.160.0 – 124.155.167.255 | 2,048 |
| 124.155.168.0/21 | 124.155.168.0 – 124.155.175.255 | 2,048 |
| 124.155.168.0/23 | 124.155.168.0 – 124.155.169.255 | 512 |
| 124.155.170.0/23 | 124.155.170.0 – 124.155.171.255 | 512 |
| 124.155.172.0/23 | 124.155.172.0 – 124.155.173.255 | 512 |
| 124.155.174.0/23 | 124.155.174.0 – 124.155.175.255 | 512 |
| 124.155.176.0/21 | 124.155.176.0 – 124.155.183.255 | 2,048 |
| 124.155.184.0/21 | 124.155.184.0 – 124.155.191.255 | 2,048 |
IPv6 Prefixes
4 prefixes · 4,098 × /48 · 3 top-level Routing data as of 2026-10-09 08:00 UTC
| Prefix | Addresses |
|---|---|
| 2407:4900:1000:: | 292 |
| 2407:4900:1c05:: | 280 |
| 2407:4900:fd01:: | 280 |
| 2407:4900:ff01:: | 280 |
BGP Neighbours
2 unique neighbours · 2 upstream/peer · 0 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. Upstream & peer side (2)
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/18429",
"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/18429",
"rel": "inaccuracy-report",
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"type": "text/html"
}
]
}
],
"country": "TW",
"name": "EXTRALAN-TW",
"status": [
"active"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T06:40:39Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-11-06T09:26:30Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/18429",
"rel": "self",
"href": "https://rdap.apnic.net/autnum/18429",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"Extra-Lan Technologies Co., LTD",
"2Fl., No. 311, Sec. 1, Beishin Rd., Shindian City",
"Taipei Country Taiwan 231"
],
"title": "description"
}
],
"entities": [
{
"roles": [
"abuse"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2025-09-11T07:45:54Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-07-16T02:54:31Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/18429",
"rel": "self",
"href": "https://rdap.apnic.net/entity/IRT-CGNET-TW",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"(oid:CGNET)"
],
"title": "remarks"
}
],
"handle": "IRT-CGNET-TW",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-CGNET-TW"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "CABLE GIANT CATV. CO., LTD.\n2F., No.311, Sec. 1, Beixin Rd., Xindian Dist.\nNew Taipei City"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+886-2-2917-3528 ext. 800"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
},
{
"roles": [
"technical",
"administrative"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T07:29:24Z"
},
{
"eventAction": "last changed",
"eventDate": "2008-09-04T07:29:24Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/18429",
"rel": "self",
"href": "https://rdap.apnic.net/entity/SJ923-AP",
"type": "application/rdap+json"
}
],
"handle": "SJ923-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
}
],
"handle": "AS18429",
"startAutnum": 18429,
"endAutnum": 18429,
"objectClassName": "autnum",
"port43": "whois.apnic.net"
} Contact details of private individuals are redacted.