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AS2047 La Roche Ltd.

ASN-ROCHE-BASLE Hoffmann - La Roche Ltd. · registered in Switzerland

IPv4 addresses372,99224 prefixes · 0.012% of announced IPv4
Rank in Switzerland#5largest network in CH by IPv4 space, of 741 · 2.53% of CH
Rank worldwide#693of 79,396 networks with IPv4
IPv62 x /32 (131,072 x /48)17 prefixes
CountrySwitzerland783 ASNs registered there
Open AS2047 in ASN lookup Look up an IP in this network (72.34.128.1) All networks in Switzerland

IPv4 prefixes

All 24 prefixes, in address order.

  • 72.34.128.0/19
  • 128.137.0.0/16
  • 141.167.0.0/16
  • 145.245.0.0/16
  • 151.120.0.0/16
  • 162.132.0.0/16
  • 175.28.64.0/18
  • 192.12.78.0/24
  • 192.104.72.0/24
  • 193.43.152.0/22
  • 193.43.156.0/23
  • 193.58.155.0/24
  • 193.228.103.0/24
  • 194.26.26.0/24
  • 194.120.80.0/20
  • 194.120.96.0/21
  • 194.147.45.0/24
  • 196.3.32.0/20
  • 196.3.48.0/21
  • 196.3.56.0/24
  • 198.21.16.0/20
  • 203.135.189.0/24
  • 204.17.168.0/24
  • 206.53.226.0/23

IPv6 prefixes

All 17 prefixes.

  • 2a04:c440::/35
  • 2a04:c440:2000::/37
  • 2a04:c440:2800::/39
  • 2a04:c440:2b00::/40
  • 2a04:c440:2c00::/38
  • 2a04:c440:3000::/36
  • 2a04:c440:4000::/34
  • 2a04:c440:8000::/40
  • 2a04:c440:8100::/40
  • 2a04:c440:8200::/39
  • 2a04:c440:8400::/38
  • 2a04:c440:8800::/37
  • 2a04:c440:9000::/36
  • 2a04:c440:a000::/35
  • 2a04:c440:c000::/34
  • 2a04:c442:6400::/40
  • 2a04:c444::/32

Similar-sized networks in Switzerland

ASNNameIPv4 addresses
AS559#2 Switch SWITCH2,184,960
AS6730#3 SUNRISE Sunrise GmbH1,988,608
AS1836#4 GREEN green.ch AG491,008
AS513#6 CERN CERN - European Organization for Nuclear Research354,816
AS8803#7 MIGROS Migros-Genossenschafts-Bund330,240
AS15600#8 QUICKLINE Quickline AG319,488

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