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AS20919DataFort LLC

RussiaRegistryRIPE NCC

As of 11th November 2026, AS20919 (DataFort LLC), a network registered in Russia with RIPE NCC, originates 13 IPv4 prefixes covering 9.5k addresses. By IPv4 address space that makes it the 11,026th-largest of the 80,743 networks we see originating IPv4, and the 614th-largest of 4,983 in Russia. It is seen behind 5 upstream networks, most often AS12389 (PJSC Rostelecom) and AS20485 (JSC TransTeleCom), and in front of 2 downstream networks. 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

0

IPv4 addresses

9.5k

IPv6 /64s

0

Upstream graph

The networks AS20919 is seen behind, one and two hops out, drawn from real AS paths.

AS20919Toward the internet core
Upstream graph for AS20919: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS20919DataFort LLCThis networkAS3216PJSC VimpelcomAS12389PJSC RostelecomAS20485JSC TransTeleComAS31133PJSC MegaFonAS57304RETN RussiaAS1273Vodafone Group PLCAS3356Lumen (Level 3)AS6939Hurricane Electri…AS1299Arelion (fka. Tel…AS6453TATA Communicatio…AS9002RETN LimitedAS18106Viewqwest Pte Ltd

Networks observed one and two hops upstream of AS20919 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
536%
Peers
750%
Downstreams
214%

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

Upstreams of AS20919
NetworkCountryRelationshipPathsVantage pts
AS12389PJSC RostelecomRUPeer34928
AS20485JSC TransTeleComRUPeer31032
AS3216PJSC VimpelcomRUPeer22229
AS57304RETN RussiaRUPeer16734
AS31133PJSC MegaFonRUPeer364

Prefixes

The largest blocks AS20919 originates, widest first.

Largest prefixes originated by AS20919
PrefixAddressesVisibility
217.74.32.0/212k76/76
217.198.80.0/212k76/76
217.74.40.0/221k76/76
217.198.88.0/221k76/76
46.42.134.0/2351276/76
77.41.188.0/2351276/76
81.222.150.0/2351276/76
217.74.46.0/2351276/76
217.74.44.0/2425676/76
217.74.45.0/2425676/76

Routing health

How AS20919'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%13

Propagation

  • Globally propagated90% of full-feed peers or more100.0%13
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 13 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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