2a0b:bb41::

Brno · Czechia · O2 Czech Republic, a.s.

Registration lookup IPv6 address formats

Autonomous system: AS12570
Country: CZ
Risk score: Not a probability

IP address summary

IP address: 2a0b:bb41::
ASN: AS12570
Network operator: O2 Czech Republic, a.s.
ISP: O2 Czech Republic, a.s.
Containing network profile: No indexed aggregate
Operator category: Business Broadband

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

Public ASN reference

Reference ASN: AS12570
Source label: ITSELF O2 Czech Republic, a.s.
Reference interval: 2a0b:bb41:: to 2a0b:bb41:ffff:ffff:ffff:ffff:ffff:ffff
Collected: 2026-11-02

IPtoASN maps this address interval to AS12570. 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: Brno
Region: South Moravian
Postal code: Not supplied
Timezone: Europe/Prague
Local time: 2026-11-04 00:57:37
Approximate coordinates: 49.301, 16.622

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

AS12570 profile

Organization: O2 Czech Republic, a.s.
ASN domain: itself.cz
Operator type: Business Broadband

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

Network registration

Matching record range: 2a0b:bb41::/36
Registered network name: CZ-NETSTONE-20170807
Registered network block: 2a0b:bb40::/29
Registration source: RIPENCC WHOIS
Company: Netstone s.r.o.
Usage type: business
Company website: netstone.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: NETSTONE Hostmaster
Published contact network: 2a0b:bb40::/29
Abuse email: abuse@netstone.cz
Phone: +420 602743367
Postal address: Netstone s.r.o., Drapelova 531/34, Brno, 644 00, CZECHIA
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

2a0b:bb41:: · live response

{
  "ip": "2a0b:bb41::",
  "isp": {
    "asn": "AS12570",
    "org": "O2 Czech Republic, a.s.",
    "isp": "O2 Czech Republic, a.s."
  },
  "location": {
    "country": "Czechia",
    "country_code": "CZ",
    "city": "Brno",
    "state": "South Moravian",
    "zipcode": "",
    "latitude": 49.30135159981334,
    "longitude": 16.62186200912814,
    "timezone": "Europe/Prague",
    "localtime": "2026-11-04T00:57:37"
  },
  "risk": {
    "is_mobile": false,
    "is_vpn": false,
    "is_tor": false,
    "is_proxy": false,
    "is_datacenter": false,
    "risk_score": 0
  }
}