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Austria holds 11,181,664 IPv4 addresses from RIPE NCC.

Last updated 5 Nov 2026 from RIR statistics (NRO) and DB-IP Country Lite (2026-11-01)

Short answer

Regional registries have allocated 11,181,664 IPv4 addresses in 2,063 blocks, 597 IPv6 blocks and 760 network numbers to organisations in Austria, the first on 1 Jan 1984. By DB-IP’s count the largest network here is A1 Telekom Austria AG (AS8447).

RegistryRIPE NCC
IPv4 allocated (RIR)11,181,664
IPv4 blocks2,063
IPv6 blocks597 (2,441 /32s of space)
Network numbers (ASNs)760
First / latest allocation1 Jan 1984 / 2 Nov 2026
IPv4 placed here by DB-IP11,527,323
DB-IP ranges (IPv4 / IPv6)2,868 / 1,417

Registered here vs used here

The RIR count is what was allocated to organisations registered in Austria; DB-IP’s count is where it estimates addresses are used. DB-IP places 345,659 more IPv4 addresses in Austria than were allocated here, which happens when networks registered elsewhere (cloud providers, multinationals) operate in the country.

Largest networks by IPv4 space in Austria

NetworkASNIPv4 in AT
A1 Telekom Austria AGAS84472,739,837
T-Mobile Austria GmbHAS84121,550,252
Hutchison Drei Austria GmbHAS25255574,208
Hutchison Drei Austria GmbHAS8437549,376
ACONETAS1853334,080
SALZBURG AG fur Energie, Verkehr und TelekommunikationAS8445248,320
kabelplus GmbHAS8339242,688
LIWEST Kabelmedien GmbHAS12605189,440
Microsoft CorporationAS8075137,068
Technische Universitat WienAS679132,096
Vienna University Computer CenterAS76099,584
Deutsche Telekom Global Business Solutions GmbHAS838791,164
APA-IT Informations Technologie G.m.b.HAS540387,552
Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHAS176478,344
A1 Telekom Austria AGAS856275,776

IP Geolocation by DB-IP (ASN Lite × Country Lite, CC BY 4.0).

Allocations per year

2015153
2016130
2017166
2018154
2019286
202077
2021107
202263
202352
202448
202545
202660

Delegation records per year (IPv4 blocks + IPv6 blocks + ASN records) still current in the RIR files. Last 12 years shown.

Download the ranges

Every IPv4 and IPv6 range DB-IP Country Lite places in Austria, as CSV. The file carries DB-IP’s attribution, which you must keep if you republish it.

Austria ranges (CSV)

Sources

  1. NRO RIR delegated-extended statistics · checked 5 Nov 2026
  2. DB-IP IP to Country Lite (CC BY 4.0) · checked 3 Nov 2026