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Greece in numbers
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elΕλληνικά
enEnglish

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IP Address Lookup
grdns.ics.forth.gr

Resolved from grdns.ics.forth.gr

139.91.1.1

IPv4Public

DNS records for grdns.ics.forth.gr

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© 2026 ipaddress.gr · IP location data is approximate. Not for emergency use or identifying individuals.

Our own datasets, rebuilt daily from: DB-IP Lite (CC BY 4.0) · GeoNames (CC BY 4.0)

IP information

IP address: 139.91.1.1
Version: IPv4
Scope: Public
HostnameDNS: grdns.ics.forth.gr
PTR record: grdns.ics.forth.gr
Forward-confirmed: Yes

Network

Source: Routing & registry data (own)

ASNRouting data: From routing and registry data. via Routing & registry data (own): AS8522
AS organization: Foundation of Research and Technology Hellas
ISP: Foundation of Research and Technology Hellas
AS organization
Organization: Foundation of Research and Technology Hellas
Network

Location

Approximate

Heraklion, Crete, Greece

Marker shows the estimated centre of the area; the circle indicates uncertainty. Never use IP location to find a person or a street address.

CountryEstimated: Estimated from IP databases. IP location is approximate and can be wrong. via Geolocation data (own, DB-IP Lite + GeoNames): GreeceGR
RegionEstimated: Estimated from IP databases. IP location is approximate and can be wrong. via Geolocation data (own, DB-IP Lite + GeoNames): Crete
CityEstimated: Estimated from IP databases. IP location is approximate and can be wrong. via Geolocation data (own, DB-IP Lite + GeoNames)

Security

ProxyNot available
VPNNot available
Tor exit nodeNot detected
Hosting providerNot available
Privacy relayNot available
Mobile networkNot available
AnycastNot available
Bot indicationNot available

Classifications come from the listed providers and public lists. A negative result means no provider flagged the address — not a guarantee.

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Address formats

Integer: 2337997057
Hexadecimal: 0x8b5b0101
Binary: 10001011.01011011.00000001.00000001
Reverse DNS name: 1.1.91.139.in-addr.arpa
IPv4-mapped IPv6

Data sources for this page:Routing & registry data (own)Tor exit list (own copy)Geolocation data (own, DB-IP Lite + GeoNames)

RPKI

RPKI ValidRPKI Route Validator

A ROA authorises this origin AS for this prefix.

BGP routeRouting data: From routing and registry data. via BGP table (own copy)

139.91.0.0/16Origin AS AS8522

Connection typeInferred: Inferred from the network's name (“Research”). A heuristic, not a fact.

Education

Inferred from the network's name (“Research”). A heuristic, not a fact.

RegistryRegistry: From the regional internet registry's delegation record.

RIPE NCC · assigned

139.91.0.0 – 139.91.255.255

Registered country

🇬🇷Greece

Allocated

Feb 15, 1990

Heraklion

Postal code

Not available

Time zoneEstimated: Estimated from IP databases. IP location is approximate and can be wrong. via Geolocation data (own, DB-IP Lite + GeoNames)

Europe/Athens (UTC+2)

Local time: 10:23 AM

CoordinatesEstimated: Estimated from IP databases. IP location is approximate and can be wrong. via Geolocation data (own, DB-IP Lite + GeoNames)

35.34, 25.13

Accuracy radius: ~25 km

CurrencyDerived: Derived from the country

Euro (EUR)

Continent

Europe

EU member state

Yes

Estimated from IP databases. IP location is approximate and can be wrong.

::ffff:139.91.1.1

::ffff:8b5b:101

6to4 prefix

2002:8b5b:101::/48

Registration (RDAP)

rdap.db.ripe.net

Network name: FORTH
Handle: 139.91.0.0 - 139.91.255.255
Address range: 139.91.0.0 – 139.91.255.255
139.91.0.0/16
Organization: Demos Panagopoulos
Country: Greece (GR)
Type: LEGACY
Registered: Jan 1, 1970
Last changed: Nov 16, 2020
Abuse contact: [email protected]

Full WHOIS / RDAP record →