subnet.im

AS203511OZBAY BILISIM INTERNET HIZMETLERI LIMITED SIRKETI

TürkiyeRegistryRIPE NCC

As of 10th November 2026, AS203511 (OZBAY BILISIM INTERNET HIZMETLERI…), a network registered in Türkiye 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 551st-largest of 871 in Türkiye. It is seen behind 1 upstream network, most often AS48678 (Pentech Bilisim Teknolojileri Sanayi Ve…). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 0% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

1

IPv6 prefixes

0

IPv4 addresses

256

IPv6 /64s

0

Upstream graph

The networks AS203511 is seen behind, one and two hops out, drawn from real AS paths.

AS203511Toward the internet core
Upstream graph for AS203511: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS203511OZBAY BILISIM INT…This networkAS48678Pentech Bilisim T…AS9121Turk TelekomAS59796StormWall s.r.o.

Networks observed one and two hops upstream of AS203511 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 AS203511
NetworkCountryRelationshipPathsVantage pts
AS48678Pentech Bilisim Teknolojileri Sanayi Ve Ticaret Limited SirketiTRPeer2121

Prefixes

The largest blocks AS203511 originates, widest first.

Largest prefixes originated by AS203511
PrefixAddressesVisibility
45.151.2.0/2425621/76

Routing health

How AS203511'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 more0.0%0
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%100.0%1

Prefix sizes

IPv4 — 1 prefixes

Recent changes

Announcements that started or stopped since 11th Oct 2026.

No announcement by AS203511 started or stopped in this period.

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