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AS52173Sia Nano IT

LatviaRegistryRIPE NCCTypeEyeball

As of 27th September 2026, AS52173 (Sia Nano IT), an access network registered in Latvia with RIPE NCC, originates 13 IPv4 prefixes covering 5.9k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 14,507th-largest of the 79,523 networks we see originating IPv4, and the 28th-largest of 243 in Latvia. It is seen behind 3 upstream networks, most often AS50304 (Blix Solutions AS) and AS43513 (Sia Nano IT). None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

13

IPv6 prefixes

3

IPv4 addresses

5.9k

IPv6 /64s

197k

Upstream graph

The networks AS52173 is seen behind, one and two hops out, drawn from real AS paths.

AS52173Toward the internet core
Upstream graph for AS52173: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS52173Sia Nano ITThis networkAS6939Hurricane Electri…AS43513Sia Nano ITAS50304Blix Solutions ASAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS2588Bite LatviaAS9002RETN LimitedAS1299Arelion (fka. Tel…

Networks observed one and two hops upstream of AS52173 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

9

adjacent networks

Upstreams
333%
Peers
667%
Downstreams
00%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS52173
NetworkCountryRelationshipPathsVantage pts
AS50304Blix Solutions ASNOPeer986140
AS43513Sia Nano ITLVPeer19448
AS6939Hurricane Electric LLCUSPeer655

Prefixes

The largest blocks AS52173 originates, widest first.

Largest prefixes originated by AS52173
PrefixAddressesVisibility
94.140.124.0/221k81/81
95.215.44.0/221k81/81
94.140.124.0/2351281/81
94.140.126.0/2351281/81
185.82.126.0/2351281/81
185.86.148.0/2351281/81
95.215.44.0/2425681/81
95.215.45.0/2425681/81
95.215.46.0/2425681/81
95.215.47.0/2425681/81

Routing health

How AS52173's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%16

Propagation

  • Globally propagated90% of full-feed peers or more100.0%16
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 13 prefixes

IPv6 — 3 prefixes

  • /4865.5k × /64100.0%3

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS52173 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.