158.199.128.0

Tokyo · Japan · KDDI Web Communications Inc.

Hosting

Registration lookup

Autonomous system: AS9597
Country: JP
Risk score: Not a probability

IP address summary

IP address: 158.199.128.0
ASN: AS9597
Network operator: KDDI Web Communications Inc.
ISP: KDDI Web Communications Inc.
Containing network profile: 158.0.0.0/8
Operator category: CDN

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

Public ASN reference

Reference ASN: AS9597
Source label: CPI-NET - KDDI Web Communications Inc.
Reference interval: 158.199.128.0 to 158.199.255.255
Collected: 2026-11-02

IPtoASN maps this address interval to AS9597. 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 23:39:51
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

HostingClassified

MobileNot classified

Risk score: 20

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

Read exact field definitions

ASN and network operator

AS9597 profile

Organization: KDDI Web Communications Inc.
ASN domain: kddi-webcommunications.co.jp
Operator type: CDN

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

Network registration

Matching record range: 158.199.128.0/17
Registered network name: KWC-NET
Registered network block: 158.199.128.0/17
Registration source: JPNIC RDAP
Company: KDDI Web Communications Inc.
Usage type: hosting
Company website: kddi-webcommunications.co.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: 158.199.128.0/17
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

158.199.128.0 · live response

{
  "ip": "158.199.128.0",
  "isp": {
    "asn": "AS9597",
    "org": "KDDI Web Communications Inc.",
    "isp": "KDDI Web Communications Inc."
  },
  "location": {
    "country": "Japan",
    "country_code": "JP",
    "city": "Tokyo",
    "state": "Tokyo",
    "zipcode": "",
    "latitude": 35.70375159981334,
    "longitude": 139.68287200912815,
    "timezone": "Asia/Tokyo",
    "localtime": "2026-11-04T23:39:51"
  },
  "risk": {
    "is_mobile": false,
    "is_vpn": false,
    "is_tor": false,
    "is_proxy": false,
    "is_datacenter": true,
    "risk_score": 20
  }
}