Longest Match / Organisations

Registered organisation

AstraZeneca AB

Address space registered to AstraZeneca AB, and where it is announced from.

Registered holders come from the bulk whois that RIPE, APNIC and AFRINIC publish. ARIN and LACNIC do not publish theirs, so holders in North and South America are largely missing here.

IPv4 addresses
31,752
IPv6 /64s
-
Registered blocks
25
Countries
2

What this tells you

  • Holds 31,752 IPv4 addresses across 25 registered blocks.
  • Almost none of this space is announced to the internet: 0.8% of its IPv4 space appears in the routing table. Space can be held for decades without being used, and a legacy allocation this size is usually one of those.
  • Announced by 2 networks, the largest being AS13335 Cloudflare, Inc. at 0.8% of the IPv4 space.
  • Its space resolves to 2 countries, mostly Sweden (94% of the IPv4 space).

Networks announcing this space

NetworkIPv4 share
AS13335 Cloudflare, Inc.0.8%
Everything else, including space not announced (1 more)99%

Countries this space resolves to

CountryIPv4 share
Sweden94%
United Kingdom6%

Holding a block is a registry fact, not a physical one. The organisation named here is who the block is assigned to, which is often a customer of the network operator announcing it.