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InternetData
IPv4 address

81.19.155.147

An address in Linz, Upper Austria, Austria, used by World4You Internet Services GmbH, announced by IONOS SE (AS8560). It's hosting space of IONOS.

Summary

Geolocation
Linz, Upper Austria
Ownership
81.19.144.0/20
Used by World4You Internet Services GmbH
  • HostingIONOS

No mobile carrier, anycast or CDN

No SSH, mail, DNS, web or BitTorrent

Geolocation

Where the address is, and what that place uses.

City
Linz
Region
Upper Austria
Postal code
4020
Country
Austria
Continent
Europe
Coordinates
48.3064, 14.2861
Timezone
Europe/Vienna

Ownership

Who holds the address: the AS announcing it, the registry record, the abuse contact and its name in DNS.

Company
World4You Internet Services GmbH
Domain
world4you.com
Type
Hosting
Registered in
Austria
AS number
AS8560
Name
IONOS SE
Prefix
81.19.144.0/20
RPKI
Valid
Type
Hosting
Domain
ionos.com
Registered in
Germany
Name
World4You.com Internet Services GmbH
Network name
WORLD4YOU-COM-ROOTSERVER-04
Status
ASSIGNED PA
Registry
RIPE NCC
Name
Abuse Department
Address
IONOS SE
Network
81.19.144.0-81.19.159.255
Not seen inIP RWHOISIP RDNS

Anonymity

Whether the address hides someone else: a VPN, Tor, a relay, a proxy pool, or a hosting range.

Provider
IONOS
Confidence
High
Last seen
2026-11-01

Network

What kind of network it is on: a mobile carrier, a satellite operator, an anycast service, a CDN edge.

Services

What our own internet-wide measurement found listening on it.

00 · Evaluate

Test the real build first.

An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.

01 · License

Then license what you use.

Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell, priced by scope rather than by seat.
Annual terms, a named contact, and monthly, quarterly or yearly payment.