IP Address Details IPv4 CZ
203.21.66.88

Geolocation

Country
Czechia
Region
Prague
City
Prague
Postal code
110 00
Timezone
Europe/Prague
Continent
Europe
Coordinates
50.0883° N, 14.4124° E
Accuracy
~20 km

Network Information

ASN
AS209854
ISP / Organization
Cyberzone

Security Assessment

0
Threat Score
No risk

Based on ASN type, proxy detection, and Tor exit node checks.

✅ VPN/Hosting
✅ Proxy
✅ Tor Exit

WHOIS IP Lookup

Network range
203.21.66.0 - 203.21.66.255
Network name
STUB-203-21-66SLASH24
Organization
Transferred to the RIPE region on 2024-06-04T08:33:42Z.
Org ID
AS2444-AP
Country
ZZ
Last updated
2024-06-03T22:47:01Z
Abuse contact
no-email@apnic.net
Show raw data 
% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to '203.21.66.0 - 203.21.66.255'

% Abuse contact for '203.21.66.0 - 203.21.66.255' is 'no-email@apnic.net'

inetnum:        203.21.66.0 - 203.21.66.255
netname:        STUB-203-21-66SLASH24
descr:          Transferred to the RIPE region on 2024-06-04T08:33:42Z.
country:        ZZ
admin-c:        STUB-AP
tech-c:         STUB-AP
abuse-c:        AS2444-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-STUB
mnt-irt:        IRT-STUB-AP
last-modified:  2024-06-03T22:47:01Z
source:         APNIC

irt:            IRT-STUB-AP
address:        N/A
e-mail:         no-email@apnic.net
abuse-mailbox:  no-email@apnic.net
admin-c:        STUB-AP
tech-c:         STUB-AP
remarks:        IRT for stub records.
remarks:        We do not operate the referring network and
remarks:        are unable to investigate complaints of network abuse.
remarks:        For information about IRT, see www.apnic.net/irt
auth:           # Filtered
mnt-by:         APNIC-HM
last-modified:  2025-11-18T00:33:17Z
source:         APNIC

role:           ABUSE STUBAP
country:        ZZ
address:        N/A
phone:          +000000000
e-mail:         no-email@apnic.net
admin-c:        STUB-AP
tech-c:         STUB-AP
nic-hdl:        AS2444-AP
remarks:        Generated from irt object IRT-STUB-AP
abuse-mailbox:  no-email@apnic.net
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-25T00:01:50Z
source:         APNIC

person:         STUB PERSON
address:        N/A
country:        ZZ
phone:          +00 0000 0000
e-mail:         no-email@apnic.net
nic-hdl:        STUB-AP
remarks:        No contact information for stub records.
mnt-by:         APNIC-HM
last-modified:  2019-09-23T04:53:33Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-UK2)

API Preview

View docs → 
GET https://ipmeu.ro/api/lookup?ip=203.21.66.88&key=YOUR_API_KEY

{
    "status": "success",
    "data": {
        "ip": "203.21.66.88",
        "version": 4,
        "hostname": "",
        "geo": {
            "country": "Czechia",
            "country_code": "CZ",
            "region": "Prague",
            "region_code": "10",
            "city": "Prague",
            "postal_code": "110 00",
            "latitude": 50.08829999999999671445038984529674053192138671875,
            "longitude": 14.4123999999999998777866494492627680301666259765625,
            "timezone": "Europe/Prague",
            "continent": "Europe",
            "continent_code": "EU"
        },
        "asn": {
            "number": 209854,
            "name": "Cyberzone S.A.",
            "description": "Cyberzone S.A. - AS209854",
            "country": "United States",
            "country_code": "US",
            "registry": "ARIN",
            "allocated": "2026-03-18",
            "total_ips": 256
        },
        "whois": {
            "net_range": "203.21.66.0 - 203.21.66.255",
            "net_name": "STUB-203-21-66SLASH24",
            "org_name": "Transferred to the RIPE region on 2024-06-04T08:33:42Z.",
            "org_id": "AS2444-AP",
            "country": "ZZ",
            "abuse_email": "no-email@apnic.net",
            "registered": null,
            "updated": "2024-06-03T22:47:01Z"
        },
        "security": {
            "vpn": false,
            "proxy": false,
            "tor": false,
            "threat_score": 0
        }
    }
}

WHOIS Information

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About This IP Address

The IP address 203.21.66.88 is a IPv4 address located in Prague, Prague, Czechia. It is assigned to Cyberzone (AS209854) and operates in the Europe/Prague timezone.

IP geolocation data is approximate and may vary in accuracy at city level. This information is useful for content localization, fraud prevention and network diagnostics.

For enhanced privacy, we recommend using a VPN service to mask your real IP address and encrypt your internet traffic.

Geographic Context

  • 📍 Country: Czechia
  • 🗺️ Region: Prague
  • 🏙️ City: Prague
  • 🕐 Timezone: Europe/Prague

Network Context

  • 🌐 ASN: AS209854
  • 🏢 ISP: Cyberzone
  • 🔢 IP Version: IPv4
  • 🛡️ Threat Score: 0/100

Frequently Asked Questions about 203.21.66.88

Where is IP address 203.21.66.88 located?
IP address 203.21.66.88 is a IPv4 address. Based on geolocation data, it is associated with Prague, Prague, Czechia and is operated by Cyberzone. Geolocation is approximate and reflects the registered location of the ISP, not necessarily the physical location of the device.
Is this IP address a VPN, proxy, or Tor exit node?
The security assessment above shows whether this IP is flagged as a VPN server, open proxy, or Tor exit node. These checks are based on known IP lists and ASN type analysis. A low threat score indicates normal residential or business traffic.
How accurate is IP geolocation data?
IP geolocation is generally accurate at the country level (95%+) and at the city level (50–80%). Accuracy depends on how the ISP has registered its address blocks. For precise location, GPS or user-provided data is required.