2404:1b00::

Tokyo · Japan · University of Kochi

Registration lookup IPv6 address formats

Autonomous system: AS55912
Country: JP
Risk score: Not a probability

IP address summary

IP address: 2404:1b00::
ASN: AS55912
Network operator: University of Kochi
ISP: University of Kochi
Containing network profile: No indexed aggregate
Operator category: Academic

The containing profile is the nearest published aggregate. It is not a registry allocation or BGP ownership record.

Public ASN reference

Reference ASN: AS55912
Source label: u-kochi - University of Kochi
Reference interval: 2404:1b00:: to 2404:1b00:ffff:ffff:ffff:ffff:ffff:ffff
Collected: 2026-11-02

IPtoASN maps this address interval to AS55912. An interval is not necessarily a BGP prefix or registered allocation. It does not establish geolocation or ownership.

IPtoASN source Reference methodology

IP geolocation

World map with country boundaries — Approximate network location; not a device positionNatural Earth map data

Country: Japan
City: Tokyo
Region: Tokyo
Postal code: Not supplied
Timezone: Asia/Tokyo
Local time: 2026-11-04 23:49:24
Approximate coordinates: 35.705, 139.759

Network-level coordinates do not identify a precise user or device location. How geolocation works

VPN, proxy and network signals

VPNNot listed

ProxyNot listed

TorNot classified

HostingNot classified

MobileNot classified

Risk score: 0

A low score is not proof that an address is safe.

Read exact field definitions

ASN and network operator

AS55912 profile

Organization: University of Kochi
ASN domain: Not supplied
Operator type: Academic

The ASN organization can differ from the organization using an individual address.

Network registration

Matching record range: 2404:1b00::/32
Registered network name: KUTNOC-JPNIC-JP-20120601
Registered network block: 2404:1b00::/32
Registration source: APNIC WHOIS
Company: Kochi Prefectural Public University Corporation
Usage type: business
Company website: kppuc.ac.jp

Registration and company fields describe this source record. They can differ from the ASN operator and from live routing announcements.

Abuse contact

Contact name: Japan Network Information Center
Published contact network: 2404:1b00::/32
Abuse email: hostmaster@nic.ad.jp
Phone: +81-3-5297-2311
Postal address: Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda, Chiyoda-ku, Tokyo 101-0047, japan
Contact country: Japan

This contact is attached to the network record. Include the source IP, UTC timestamps and relevant logs when reporting abuse.

Actual API response

Open JSON

2404:1b00:: · live response

{
  "ip": "2404:1b00::",
  "isp": {
    "asn": "AS55912",
    "org": "University of Kochi",
    "isp": "University of Kochi"
  },
  "location": {
    "country": "Japan",
    "country_code": "JP",
    "city": "Tokyo",
    "state": "Tokyo",
    "zipcode": "",
    "latitude": 35.70525159981334,
    "longitude": 139.75906200912814,
    "timezone": "Asia/Tokyo",
    "localtime": "2026-11-04T23:49:24"
  },
  "risk": {
    "is_mobile": false,
    "is_vpn": false,
    "is_tor": false,
    "is_proxy": false,
    "is_datacenter": false,
    "risk_score": 0
  }
}