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AS2047

AS2047 is Hoffmann - La Roche Ltd..

Last updated 3 Nov 2026 from DB-IP ASN Lite (2026-11-01) and RIR statistics (2 Nov 2026)

Short answer

AS2047 belongs to Hoffmann - La Roche Ltd.. DB-IP Lite attributes 372,992 IPv4 addresses in 20 ranges and 4 IPv6 ranges to it, 58% of the IPv4 space in United States. The number is registered with RIPE NCC in Switzerland on 26 May 1994.

Facts for AS2047
Operator (DB-IP)Hoffmann - La Roche Ltd.
IPv4 addresses372,992
IPv4 ranges20
IPv6 ranges4
RegistryRIPE NCC
Registered26 May 1994
Registry countrySwitzerland (CH)

Does it publish a geofeed?

We haven’t checked this network’s registry records for a geofeed yet. The Truth Check looks for one live for any address you test.

Shared addresses (CGNAT)

Hoffmann - La Roche Ltd. hasn’t been documented as using carrier-grade NAT in a source we could check. To see whether your own connection is behind it, compare your router’s address on the CGNAT check.

IPv6

DB-IP lists 4 IPv6 ranges for AS2047, so customers can get IPv6 addresses, which databases place separately from IPv4.

Where its IPv4 space is used, according to DB-IP

US58%
CH36%
SG4%
DE2%
ES0.07%

Share of the network’s IPv4 addresses by DB-IP Country Lite. IP Geolocation by DB-IP.

IP ranges

RangeAs CIDRAddresses
72.34.128.0 – 72.34.159.25572.34.128.0/198,192
128.137.0.0 – 128.137.255.255128.137.0.0/1665,536
141.167.0.0 – 141.167.255.255141.167.0.0/1665,536
145.245.0.0 – 145.245.255.255145.245.0.0/1665,536
151.120.0.0 – 151.120.255.255151.120.0.0/1665,536
162.132.0.0 – 162.132.255.255162.132.0.0/1665,536
175.28.64.0 – 175.28.127.255175.28.64.0/1816,384
192.12.78.0 – 192.12.78.255192.12.78.0/24256
192.104.72.0 – 192.104.72.255192.104.72.0/24256
193.43.152.0 – 193.43.157.255193.43.152.0/22, 193.43.156.0/231,536
193.58.155.0 – 193.58.155.255193.58.155.0/24256
193.228.103.0 – 193.228.103.255193.228.103.0/24256
194.26.26.0 – 194.26.26.255194.26.26.0/24256
194.120.80.0 – 194.120.103.255194.120.80.0/20, 194.120.96.0/216,144
194.147.45.0 – 194.147.45.255194.147.45.0/24256
196.3.32.0 – 196.3.56.255196.3.32.0/20, 196.3.48.0/21 …6,400
198.21.16.0 – 198.21.31.255198.21.16.0/204,096
203.135.189.0 – 203.135.189.255203.135.189.0/24256
204.17.168.0 – 204.17.168.255204.17.168.0/24256
206.53.226.0 – 206.53.227.255206.53.226.0/23512
2a04:c440:: – 2a04:c440:29ff:ffff:ffff:ffff:ffff:ffff2a04:c440::/35IPv6
2a04:c440:2b00:: – 2a04:c440:ffff:ffff:ffff:ffff:ffff:ffff2a04:c440:2b00::/40IPv6
2a04:c442:6400:: – 2a04:c442:64ff:ffff:ffff:ffff:ffff:ffff2a04:c442:6400::/40IPv6
2a04:c444:: – 2a04:c444:ffff:ffff:ffff:ffff:ffff:ffff2a04:c444::/32IPv6
Showing 20 of 20 IPv4 and 4 of 4 IPv6 ranges All ranges (CSV)

IP Geolocation by DB-IP, ASN Lite, CC BY 4.0.

Using an address from this network? See which sources agree on where it is.

Sources

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