Longest Match / Organisations

Registered organisation

NetCrafters OU

Address space registered to NetCrafters OU, 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 ARIN and LACNIC do not publish theirs, so holders in North and South America are largely missing here.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
31,488
IPv6 /64s
536,936,451
Registered blocks
117
Countries
15

What this tells you

  • Holds 31,488 IPv4 addresses and 536,936,451 IPv6 /64 networks across 117 registered blocks.
  • Announced by 5 networks, the largest being AS203273 NetCrafters OU at 51% of the IPv4 space.
  • Its space resolves to 15 countries, mostly Iran (27% of the IPv4 space).

Networks announcing this space

NetworkIPv4 shareIPv6 share
AS203273 NetCrafters OU51%100%
AS210644 AƩza International Limited33%-
AS216246 Aeza Group LLC2%-
AS43278 Castles LLC0.8%-
AS209372 WS Telecom Inc0.8%-
Not announced to the internet11%-

Countries this space resolves to

CountryIPv4 shareIPv6 share
Iran27%-
United States20%50%
Finland11%-
Sweden10%-
Russia7%50%
Greece7%-
Germany4%-
Netherlands3%-
Everything else, including space we cannot place (7 more)11%<0.1%

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.