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AS43740Secure Telecommunication LLC

RussiaRegistryRIPE NCC

As of 27th September 2026, AS43740 (Secure Telecommunication LLC), a network registered in Russia with RIPE NCC, originates 9 IPv4 prefixes covering 2.6k addresses. By IPv4 address space that makes it the 23,020th-largest of the 79,523 networks we see originating IPv4, and the 1,350th-largest of 4,942 in Russia. It is seen behind 6 upstream networks, most often AS12389 (Rostelecom PJSC) and AS3216 (Vimpelcom PJSC), and in front of 1 downstream network. None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers, and 4 prefixes are also originated by another network.

At a glance

IPv4 prefixes

9

IPv6 prefixes

0

IPv4 addresses

2.6k

IPv6 /64s

0

Upstream graph

The networks AS43740 is seen behind, one and two hops out, drawn from real AS paths.

AS43740Toward the internet core
Upstream graph for AS43740: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS43740Secure Telecommun…This networkAS3216Vimpelcom PJSCAS8359MTS PJSCAS12389Rostelecom PJSCAS35401AO "Tele-Service …AS59692IQWeb FZ-LLCAS1273Vodafone Group PLCAS3356Lumen (Level 3)AS18106Viewqwest Pte LtdAS3491PCCW Global (HK) …AS6939Hurricane Electri…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS43740 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

14

adjacent networks

Upstreams
643%
Peers
750%
Downstreams
17%

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

Upstreams of AS43740
NetworkCountryRelationshipPathsVantage pts
AS12389Rostelecom PJSCRUPeer32865
AS3216Vimpelcom PJSCRUPeer22563
AS59692IQWeb FZ-LLCAEPeer8080
AS8359MTS PJSCRUPeer7353
AS35401AO "Tele-Service Tula"RUPeer2211
AS57724DDOS-GUARD LTDRUPeer11

Prefixes

The largest blocks AS43740 originates, widest first.

Largest prefixes originated by AS43740
PrefixAddressesVisibility
185.179.226.0/2351279/81
185.149.160.0/2425679/81
185.149.161.0/2425681/81
185.149.162.0/2425681/81
185.149.163.0/2425681/81
185.179.224.0/2425679/81
185.179.225.0/2425681/81
185.179.226.0/2425681/81
194.140.247.0/2425679/81

Routing health

How AS43740'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%9

Propagation

  • Globally propagated90% of full-feed peers or more100.0%9
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 9 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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