AS15690 — NOANET

AS15690 announces 3 IPv4 prefixes covering 1,280 addresses and 1 IPv6 prefixes.

About this network

Every answering name says what the host is for, department subdomain included.

What it's used for

• A national observatory's network. Three IPv4 prefixes and one IPv6 prefix announced from Greece, one thousand two hundred and eighty addresses, through a single observed BGP neighbour.

Notable

• The four answering names each sit under a different department: one for geodynamics, one for meteorology, one for astronomy and one for administration, all under the observatory's domain.
• The host part of each name is its function rather than an identifier: a broadcast address, a private gateway, an external network for one institute, and a reserve virtual private network endpoint.
• All three IPv4 blocks share one netname and one registrant, a network operations contact, with no abuse role listed at all.
• The IPv6 announcement is a /48, one block rather than an allocation to divide.
• Nine addresses were queried and four returned a name.
• One neighbour carries everything.

Interesting

• Function names in public DNS are a map. A reader learns which address is a gateway, which is a remote access endpoint and which department each belongs to, before sending a single packet at any of them. Research networks have published names this way since long before that mattered.
• One upstream for a national research institute is the shape of a network connected through a single academic backbone rather than bought from the market.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 194.177.194.0/23
• 195.251.202.0/23
• 195.251.204.0/24
• 2001:648:2011::/48

Upstream networks

• AS5408 National Infrastructures for Research and Technology S.A.

Adjacent networks

• AS5408 National Infrastructures for Research and Technology S.A.