Longest Match / Organisations

Registered organisation

JSC Mastertel

Address space registered to JSC Mastertel, 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 ARIN and LACNIC do not publish theirs, so space held in North and South America is largely unattributed here.

IPv4 addresses
48,896
IPv6 /64s
38,654,705,664
Registered blocks
34
Countries
1

What this tells you

  • Holds 48,896 IPv4 addresses and 38,654,705,664 IPv6 /64 networks across 34 registered blocks.
  • Announced by 10 networks, the largest being AS29226 MasterTel at 95% of the IPv4 space.
  • All of the space we can place resolves to Russia.

Networks announcing this space

Space announced by a network covers 100% of this holder's IPv4 space and 100% of its IPv6 space. The table below divides that space.

NetworkIPv4 shareIPv6 share
AS29226 MasterTel95%100%
AS205482 Direct Mail LLC0.5%-
AS205567 Gemotest Laboratory LLC0.5%-
AS209188 Joint Stock Company Transmashholding0.5%-
AS215589 Joint Stock Company Varton0.5%-
AS212134 LLC Danfoss0.5%-
AS205324 LLC Hyperglobus0.5%-
AS206968 PJSC Rosseti0.5%-
Everything else (2 more)1%-

Countries this space resolves to

Space we can place in a country covers 100% of this holder's IPv4 space and 100% of its IPv6 space. The table below divides that space.

CountryIPv4 shareIPv6 share
Russia100%100%

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.

Every figure on this page is also JSON: /api/v2/directory/org/jsc-mastertel. Breakdowns paginate from there, so a table showing the largest rows here returns all of them. Read the API.