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AS43513Sia Nano IT

LatviaRegistryRIPE NCCTypeEyeball

As of 27th September 2026, AS43513 (Sia Nano IT), an access network registered in Latvia with RIPE NCC, originates 52 IPv4 prefixes covering 71.9k addresses and 7 IPv6 prefixes. By IPv4 address space that makes it the 3,021st-largest of the 79,523 networks we see originating IPv4, and the 7th-largest of 243 in Latvia. It is seen behind 4 upstream networks, most often AS9002 (RETN Limited) and AS2588 (Bite Latvia), and in front of 5 downstream networks. 19% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 98% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

52

IPv6 prefixes

7

IPv4 addresses

71.9k

IPv6 /64s

52.6B

Upstream graph

The networks AS43513 is seen behind, one and two hops out, drawn from real AS paths.

AS43513Toward the internet core
Upstream graph for AS43513: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS43513Sia Nano ITThis networkAS2588Bite LatviaAS6939Hurricane Electri…AS9002RETN LimitedAS12578SIA TetAS13194UAB "Bite Lietuva"AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS6453TATA Communicatio…AS51907Kanton ZugAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS43513 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

19

adjacent networks

Upstreams
421%
Peers
1053%
Downstreams
526%

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

Upstreams of AS43513
NetworkCountryRelationshipPathsVantage pts
AS9002RETN LimitedGBPeer3,602134
AS2588Bite LatviaLVPeer1,12185
AS12578SIA TetLVPeer35322
AS6939Hurricane Electric LLCUSPeer22812

Prefixes

All 59

The largest blocks AS43513 originates, widest first.

Largest prefixes originated by AS43513
PrefixAddressesVisibility
86.63.160.0/198.2k81/81
94.140.96.0/198.2k81/81
80.250.48.0/204.1k81/81
87.246.128.0/204.1k81/81
89.248.80.0/204.1k81/81
91.135.80.0/204.1k81/81
5.44.216.0/212k81/81
31.170.16.0/212k81/81
46.19.144.0/212k81/81
85.31.96.0/212k81/81

Routing health

How AS43513'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

  • Valid18.6%11
  • Invalid0.0%0
  • No ROA81.4%48

Propagation

  • Globally propagated90% of full-feed peers or more98.3%58
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%1.7%1

Prefix sizes

IPv4 — 52 prefixes

IPv6 — 7 prefixes

  • /2934.4B × /6414.3%1
  • /324.3B × /6457.1%4
  • /341.1B × /6414.3%1
  • /4865.5k × /6414.3%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS43513 started or stopped in this period.

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