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AS219201Sistema Gorod JSC

RussiaRegistryRIPE NCC

As of 10th November 2026, AS219201 (Sistema Gorod JSC), a network registered in Russia with RIPE NCC, originates 1 IPv4 prefix covering 256 addresses. By IPv4 address space that makes it the 59,958th-largest of the 80,723 networks we see originating IPv4, and the 3,247th-largest of 4,983 in Russia. It is seen behind 1 upstream network, most often AS41704 (JSC "Ufanet"). 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

1

IPv6 prefixes

0

IPv4 addresses

256

IPv6 /64s

0

Upstream graph

The networks AS219201 is seen behind, one and two hops out, drawn from real AS paths.

AS219201Toward the internet core
Upstream graph for AS219201: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS219201Sistema Gorod JSCThis networkAS41704JSC "Ufanet"AS31133PJSC MegaFonAS47775JSC "Ufanet"

Networks observed one and two hops upstream of AS219201 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

3

adjacent networks

Upstreams
133%
Peers
267%
Downstreams
00%

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

Upstreams of AS219201
NetworkCountryRelationshipPathsVantage pts
AS41704JSC "Ufanet"RUPeer7676

Prefixes

The largest blocks AS219201 originates, widest first.

Largest prefixes originated by AS219201
PrefixAddressesVisibility
185.191.143.0/2425676/76

Routing health

How AS219201'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%1
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%1
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

Recent changes

Announcements that started or stopped since 11th Oct 2026.

  • Withdrawn154.83.129.0/245th Nov 2026
  • Withdrawn45.197.197.0/245th Nov 2026
  • Announced45.197.197.0/243rd Nov 2026
  • Withdrawn154.80.170.0/243rd Nov 2026
  • Withdrawn45.196.169.0/243rd Nov 2026
  • Withdrawn45.199.189.0/243rd Nov 2026
  • Withdrawn45.203.185.0/243rd Nov 2026
  • Withdrawn45.203.186.0/243rd Nov 2026
  • Withdrawn45.203.187.0/243rd Nov 2026
  • Announced154.83.129.0/242nd Nov 2026
  • Announced45.199.189.0/241st Nov 2026
  • Announced45.203.185.0/241st Nov 2026

8 announced and 8 withdrawn in all; the most recent are shown.

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