133.7.0.0

Tokyo · Japan · Research Organization of Information and Systems, National Institute of Informatics

Autonomous system: AS2907
Country: JP
Legacy classification score: Not a probability

IP address summary

IP address: 133.7.0.0
ASN: AS2907
Network operator: Research Organization of Information and Systems, National Institute of Informatics
ISP: Research Organization of Information and Systems, National Institute of Informatics
Containing network profile: 133.0.0.0/8
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: AS2907
Source label: SINET-AS - Research Organization of Information and Systems, National Institute of Informatics
Reference interval: 133.7.0.0 to 133.8.255.255
Collected: 2026-11-02

IPtoASN maps this address interval to AS2907. 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: 2026-11-09 11:33:45
Approximate coordinates: 35.704, 139.683

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

Legacy classification score: 0

This response predates the evidence-based model.

Read exact field definitions

ASN and network operator

AS2907 profile

Organization: Research Organization of Information and Systems, National Institute of Informatics
ASN domain: sinet.ad.jp
Operator type: Academic

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

Network registration

Matching record range: 133.7.0.0 – 133.8.255.255
Registered network name: JPNIC-NET-JP-ERX
Registered network block: 133.0.0.0/8
Registration source: APNIC WHOIS
Company: Research Organization of Information and Systems, National Institute of Informatics
Usage type: business
Company website: sinet.ad.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: ABUSE JPNICJP
Published contact network: 133.0.0.0/8
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

133.7.0.0 · live response

{
  "ip": "133.7.0.0",
  "isp": {
    "asn": "AS2907",
    "org": "Research Organization of Information and Systems, National Institute of Informatics",
    "isp": "Research Organization of Information and Systems, National Institute of Informatics"
  },
  "location": {
    "country": "Japan",
    "country_code": "JP",
    "city": "Tokyo",
    "state": "Tokyo",
    "zipcode": "",
    "latitude": 35.70375159981334,
    "longitude": 139.68287200912815,
    "timezone": "Asia/Tokyo",
    "localtime": "2026-11-09T11:33:45"
  },
  "risk": {
    "is_mobile": false,
    "is_vpn": false,
    "is_tor": false,
    "is_proxy": false,
    "is_datacenter": false,
    "risk_score": 0
  }
}