Skip to content

IP LookupASN, ISP, route, reverse DNS and location for any address.
DNS LookupA, AAAA, MX, TXT, NS, SOA, CAA and more with TTLs.
ASN LookupHolder, registry and every prefix an AS announces.
WHOIS / RDAPRegistration data for domains, IP networks and ASNs.
IPv6 TestDoes your connection work over IPv4, IPv6 or both?
RPKI Route ValidatorIs a route's origin AS authorised by a ROA?
BGP Prefix LookupWho announces a prefix, what covers it and its more-specifics.
CIDR CalculatorNetwork, broadcast, masks and host counts for any prefix.
Subnet CalculatorSplit networks into subnets, IPv4 and IPv6.
Security HeadersHSTS, CSP and the other protective headers of a public site.

Greece in numbers
IPv4 explained
IPv6 explained
DNS records
Autonomous systems
How IP geolocation works
How it works

elΕλληνικά
enEnglish

Home
IP Address Lookup
155.207.1.90

155.207.1.90

IPv4Public

Loading…

Loading…

Loading…

Loading…

Your IP address, network and connection — clearly explained.

Data source status →

IP tools

What is my IP
IP Lookup
IP Location
IPv6 Test
IP Address Validator
Reserved IP Ranges
Bulk IP Lookup

DNS tools

DNS Lookup
Reverse DNS
DNS Propagation
DNSSEC Check
WHOIS / RDAP
TLS Certificate Check
Security Headers

Network

ASN Lookup
BGP Prefix Lookup
RPKI Route Validator
CIDR Calculator
Subnet Calculator
User-Agent Parser
All tools

Resources

Guides
Greece in numbers
IPv4 explained
IPv6 explained
DNS records
How IP geolocation works

Company

About
How it works
API
Contact
Privacy Policy
Terms of Use

© 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: 155.207.1.90
Version: IPv4
Scope: Public
HostnameDNS: alpha16.it.auth.gr
PTR record: alpha16.it.auth.gr
Forward-confirmed: Yes

Network

Source: Routing & registry data (own)

ASNRouting data: From routing and registry data. via Routing & registry data (own): AS5470
AS organization: Aristotle University of Thessaloniki
ISP: Aristotle University of Thessaloniki
AS organization
Organization: Aristotle University of Thessaloniki
Network: 155.207.0.0/16

Location

Approximate

Sykies, Central Macedonia, 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): Central Macedonia
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.

Loading…

Address formats

Integer: 2614034778
Hexadecimal: 0x9bcf015a
Binary: 10011011.11001111.00000001.01011010
Reverse DNS name: 90.1.207.155.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)

155.207.0.0/16Origin AS AS5470

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

Education

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

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

RIPE NCC · assigned

155.207.0.0 – 155.207.255.255

Registered country

🇬🇷Greece

Allocated

Nov 26, 1991

Sykies

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: 7:44 AM

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

40.65, 22.96

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:155.207.1.90

::ffff:9bcf:15a

6to4 prefix

2002:9bcf:15a::/48

Registration (RDAP)

rdap.db.ripe.net

Network name: AUTH-NET
Handle: 155.207.0.0 - 155.207.255.255
Address range: 155.207.0.0 – 155.207.255.255
155.207.0.0/16
Organization: AS5470-MNT
Country: Greece (GR)
Type: LEGACY
Registered: Jan 1, 1970
Last changed: Apr 14, 2016
Abuse contact: [email protected]

Full WHOIS / RDAP record →