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Networks in Switzerland

783 autonomous systems are registered in Switzerland (CH). Together they announce 14,757,376 IPv4 addresses, 0.47% of the announced total, which ranks Switzerland #27 of 240 countries.

Autonomous systems783741 announce IPv4, 42 IPv6 only
IPv4 addresses14,757,3760.47% of announced IPv4 · #27 worldwide
Top 5 networks hold57.8%of Switzerland's IPv4 space
IPv61,905 x /32 (124,891,661 x /48)416 of 783 networks (53%) announce IPv6
Small networks179announce a single /24 (256 addresses) or less
Look up AS3303, the largest network in CH Look up any IP or ASN

Top 50 networks in Switzerland by IPv4 space

#ASNNetworkIPv4 addressesOf CH
1 AS3303 SWISSCOM Swisscom (Schweiz) AG 3,492,864 23.67%
2 AS559 Switch SWITCH 2,184,960 14.81%
3 AS6730 SUNRISE Sunrise GmbH 1,988,608 13.48%
4 AS1836 GREEN green.ch AG 491,008 3.33%
5 AS2047 ASN-ROCHE-BASLE Hoffmann - La Roche Ltd. 372,992 2.53%
6 AS513 CERN CERN - European Organization for Nuclear Research 354,816 2.40%
7 AS8803 MIGROS Migros-Genossenschafts-Bund 330,240 2.24%
8 AS15600 QUICKLINE Quickline AG 319,488 2.16%
9 AS12350 VTX-NETWORK VTX Services SA 309,504 2.10%
10 AS62044 ZSCALER-EMEA Zscaler Switzerland GmbH 181,248 1.23%
11 AS8758 IWAY Iway AG 175,600 1.19%
12 AS12511 CH-POSTNETZ Die Schweizerische Post AG 165,888 1.12%
13 AS21449 ETATGE Etat de Geneve 135,168 0.92%
14 AS33845 SWISSGOV Swiss Federation represented by FOITT 135,168 0.92%
15 AS15547 NETPLUS netplus.ch SA 133,376 0.90%
16 AS25021 CIEF-AS Etat de Fribourg 131,072 0.89%
17 AS13030 INIT7 Init7 (Switzerland) Ltd. 118,272 0.80%
18 AS6772 IMPNET-AS ImproWare AG 115,456 0.78%
19 AS29222 Infomaniak-AS Infomaniak Network SA 110,592 0.75%
20 AS8821 TELEZUG WWZ Telekom AG 108,544 0.74%
21 AS20868 ABB ABB Information Systems Ltd 102,400 0.69%
22 AS9044 SOLNET BSE Software GmbH 101,376 0.69%
23 AS15623 CYBERLINK Cyberlink AG 100,096 0.68%
24 AS15796 SALT-CH Salt Mobile SA 98,304 0.67%
25 AS28686 AVENIQ-AS Aveniq AG 82,432 0.56%
26 AS15585 BEWAN-AS Finanzdirektion des Kantons Bern 81,920 0.56%
27 AS8640 ZFS-GROUP Zurich Insurance Company AG 73,728 0.50%
28 AS15675 Etat-de-Vaud Direction generale du numerique et des systemes d'information (DGNSI) Etat de Vaud 69,376 0.47%
29 AS200233 bfh Berner Fachhochschule 67,840 0.46%
30 AS49071 SWISSTXT Schweizerische Radio- und Fernsehgesellschaft 67,840 0.46%
31 AS34578 BEDAG Bedag Informatik AG 65,792 0.45%
32 AS8414 International Telecommunication Union 65,792 0.45%
33 AS28810 WHO-AS World Health Organization (WHO) 65,792 0.45%
34 AS200544 swiss-defence-afcso Swiss Armed Forces - AFCSO 65,536 0.44%
35 AS13283 BJB1-AS Bank Julius Baer & Co. AG 65,536 0.44%
36 AS15661 Bank J. Safra Sarasin AG 65,536 0.44%
37 AS21232 GGAMAUR Genossenschaft GGA Maur 61,696 0.42%
38 AS12620 TICINOCOM Ticinocom SA 50,688 0.34%
39 AS15576 NTS NTS workspace AG 46,592 0.32%
40 AS35518 SASAG sasag Kabelkommunikation AG 40,960 0.28%
41 AS41872 FLASHCABLE Quickline AG 39,168 0.27%
42 AS61098 exoscale Akenes SA 38,656 0.26%
43 AS41549 EWB-Cable-Network-AS Elektrizitaets- und Wasserwerk der Stadt Buchs SG 36,608 0.25%
44 AS34781 SIL-CITYCABLE-AS Services Industriels de Lausanne (SIL) 34,048 0.23%
45 AS12651 IPWORLDCOM IP worldcom SA 32,768 0.22%
46 AS24952 FIRMENICH-AS Firmenich SA 32,768 0.22%
47 AS213196 USB Universitaetsspital Basel 32,768 0.22%
48 AS42346 AS-TINEO NorthC Schweiz AG 31,488 0.21%
49 AS29691 NINE Nine Internet Solutions AG 29,184 0.20%
50 AS24951 EVERYWARE-NET EveryWare AG 28,672 0.19%

Countries of similar size

#24 Colombia#25 Vietnam#26 Turkey#28 Norway#29 Finland#30 Morocco All countries

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources