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AS21017PJSC Rostelecom

RussiaRegistryRIPE NCCTypeEyeball

As of 11th November 2026, AS21017 (PJSC Rostelecom), an access network registered in Russia with RIPE NCC, originates 7 IPv4 prefixes covering 115k addresses. By IPv4 address space that makes it the 2,241st-largest of the 80,763 networks we see originating IPv4, and the 69th-largest of 4,985 in Russia. It is seen behind 1 upstream network, most often AS12389 (PJSC Rostelecom). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

7

IPv6 prefixes

0

IPv4 addresses

115k

IPv6 /64s

0

Upstream graph

The networks AS21017 is seen behind, one and two hops out, drawn from real AS paths.

AS21017Toward the internet core
Upstream graph for AS21017: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS21017PJSC RostelecomThis networkAS12389PJSC RostelecomAS1299Arelion (fka. Tel…AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS21017 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS21017
NetworkCountryRelationshipPathsVantage pts
AS12389PJSC RostelecomRUPeer53977

Prefixes

The largest blocks AS21017 originates, widest first.

Largest prefixes originated by AS21017
PrefixAddressesVisibility
77.45.128.0/1732.8k77/77
95.32.0.0/1816.4k77/77
95.32.64.0/1816.4k77/77
95.32.128.0/1816.4k77/77
95.32.192.0/1816.4k77/77
80.82.32.0/198.2k77/77
88.83.192.0/198.2k77/77

Routing health

How AS21017'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

  • Valid100.0%7
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%7
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 7 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS21017 started or stopped in this period.

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