158.196.0.0

Ostrava · Czechia · CESNET z.s.p.o.

Autonomous system: AS2852
Country: CZ
Legacy classification score: Not a probability

IP address summary

IP address: 158.196.0.0
ASN: AS2852
Network operator: CESNET z.s.p.o.
ISP: CESNET z.s.p.o.
Containing network profile: 158.0.0.0/8
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: AS2852
Source label: CESNET2 CESNET z.s.p.o.
Reference interval: 158.196.0.0 to 158.196.255.255
Collected: 2026-11-02

IPtoASN maps this address interval to AS2852. 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: Czechia
City: Ostrava
Region: Moravian-Silesian Region
Postal code: Not supplied
Timezone: Europe/Prague
Local time: 2026-11-09 03:14:34
Approximate coordinates: 49.849, 18.273

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

AS2852 profile

Organization: CESNET z.s.p.o.
ASN domain: cesnet.cz
Operator type: Academic

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

Network registration

Matching record range: 158.196.0.0/16
Registered network name: VSB-TCZ
Registered network block: 158.196.0.0/16
Registration source: RIPENCC WHOIS
Company: VSB - Technical University
Usage type: business
Company website: vsb.cz

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

Abuse contact

Contact name: Technical University Ostrava Admins
Published contact network: 158.196.0.0/16
Abuse email: abuse@vsb.cz
Phone: +420 596 993 174
Postal address: Technical University Ostrava, 17. listopadu 15, Ostrava-Poruba, 715 00, The Czech Republic
Contact country: Czechia

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

158.196.0.0 · live response

{
  "ip": "158.196.0.0",
  "isp": {
    "asn": "AS2852",
    "org": "CESNET z.s.p.o.",
    "isp": "CESNET z.s.p.o."
  },
  "location": {
    "country": "Czechia",
    "country_code": "CZ",
    "city": "Ostrava",
    "state": "Moravian-Silesian Region",
    "zipcode": "",
    "latitude": 49.84890159981334,
    "longitude": 18.273202009128138,
    "timezone": "Europe/Prague",
    "localtime": "2026-11-09T03:14:34"
  },
  "risk": {
    "is_mobile": false,
    "is_vpn": false,
    "is_tor": false,
    "is_proxy": false,
    "is_datacenter": false,
    "risk_score": 0
  }
}