157.0.0.0

Nanjing · China · CHINA UNICOM China169 Backbone

Autonomous system: AS4837
Country: CN
Weighted risk score: 0; Not a probability

IP address summary

IP address: 157.0.0.0
ASN: AS4837
Network operator: CHINA UNICOM China169 Backbone
ISP: CHINA UNICOM China169 Backbone
Containing network profile: 157.0.0.0/8
Operator category: Home ISP

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

Public ASN reference

Reference ASN: AS4837
Source label: CHINA169-Backbone - CHINA UNICOM China169 Backbone
Reference interval: 157.0.0.0 to 157.0.143.255
Collected: 2026-11-02

IPtoASN maps this address interval to AS4837. 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: China
City: Nanjing
Region: Jiangsu
Postal code: Not supplied
Timezone: Asia/Shanghai
Local time: 2026-11-02 22:32:41
Approximate coordinates: 32.076, 118.769

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

The score adds 50 for proxy, 50 for Tor, 30 for VPN and 20 for hosting. “Not listed” does not establish safety. Hosting combines Enterprise data and legacy overrides; Tor combines the Enterprise field and legacy list.

Read exact field definitions

ASN and network operator

AS4837 profile

Organization: CHINA UNICOM China169 Backbone
ASN domain: chinaunicom.cn
Operator type: Home ISP

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

Network registration

Matching record range: 157.0.0.0 – 157.0.143.255
Registered network name: UNICOM-JS
Registered network block: 157.0.0.0/16
Registration source: APNIC WHOIS
Company: China Unicom Jiangsu province network
Usage type: residential
Company website: chinaunicom.cn

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 CUCN
Published contact network: 157.0.0.0/16
Abuse email: hqs-ipabuse@chinaunicom.cn
Phone: +86-10-66259764
Postal address: No.21, Financial Street, Beijing, 100033, P.R.China
Contact country: China

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

157.0.0.0 · live response

{
  "ip": "157.0.0.0",
  "isp": {
    "asn": "AS4837",
    "org": "CHINA UNICOM China169 Backbone",
    "isp": "CHINA UNICOM China169 Backbone"
  },
  "location": {
    "country": "China",
    "country_code": "CN",
    "city": "Nanjing",
    "state": "Jiangsu",
    "zipcode": "",
    "latitude": 32.075921599813334,
    "longitude": 118.76894200912815,
    "timezone": "Asia/Shanghai",
    "localtime": "2026-11-02T22:32:41"
  },
  "risk": {
    "is_mobile": false,
    "is_vpn": false,
    "is_tor": false,
    "is_proxy": false,
    "is_datacenter": false,
    "risk_score": 0
  }
}