CH

Switzerland holds 23,286,896 IPv4 addresses from APNIC, ARIN and RIPE NCC.

Short answer

Regional registries have allocated 23,286,896 IPv4 addresses in 2,893 blocks, 876 IPv6 blocks and 1,070 network numbers to organisations in Switzerland, the first on 1 Jan 1984. By DB-IP’s count the largest network here is Swisscom (Schweiz) AG (AS3303).

RegistryAPNIC, ARIN, RIPE NCC
IPv4 allocated (RIR)23,286,896
IPv4 blocks2,893
IPv6 blocks876 (4,178 /32s of space)
Network numbers (ASNs)1,070
First / latest allocation1 Jan 1984 / 3 Nov 2026
IPv4 placed here by DB-IP23,365,933
DB-IP ranges (IPv4 / IPv6)4,051 / 16,305

Registered here vs used here

The RIR count is what was allocated to organisations registered in Switzerland; DB-IP’s count is where it estimates addresses are used. DB-IP places 79,037 more IPv4 addresses in Switzerland than were allocated here, which happens when networks registered elsewhere (cloud providers, multinationals) operate in the country.

Largest networks by IPv4 space in Switzerland

NetworkASNIPv4 in CH
Swisscom (Schweiz) AGAS33033,492,280
SWITCHAS5592,184,704
Sunrise GmbHAS67301,985,568
Microsoft CorporationAS8075806,042
Amazon.com, Inc.AS16509669,428
green.ch AGAS1836487,256
CERN - European Organization for Nuclear ResearchAS513354,816
Migros-Genossenschafts-BundAS8803330,240
Quickline AGAS15600319,488
VTX Services SAAS12350308,280
Iway AGAS8758174,080
Die Schweizerische Post AGAS12511165,888
ETAT DE GENEVEAS21449135,168
Swiss Federation represented by FOITTAS33845135,168
Hoffmann - La Roche Ltd.AS2047133,888

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

Allocations per year

2015206
2016194
2017230
2018200
2019276
2020130
2021120
2022107
202380
202487
202581
202677

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 Switzerland, as CSV. The file carries DB-IP’s attribution, which you must keep if you republish it.

Switzerland ranges (CSV)

Sources

  1. NRO RIR delegated-extended statistics · checked 6 Nov 2026
  2. DB-IP IP to Country Lite (CC BY 4.0) · checked 3 Nov 2026