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AS202561High Speed Telecom

TürkiyeRegistryRIPE NCC

As of 11th November 2026, AS202561 (High Speed Telecom), a network registered in Türkiye with RIPE NCC, originates 10 IPv4 prefixes covering 2.6k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 23,457th-largest of the 80,733 networks we see originating IPv4, and the 148th-largest of 871 in Türkiye. It is seen behind 2 upstream networks, most often AS6663 (Türk Telekom International) and AS214095 (E Sim international LLC), and in front of 1 downstream network. 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

10

IPv6 prefixes

1

IPv4 addresses

2.6k

IPv6 /64s

34.4B

Upstream graph

The networks AS202561 is seen behind, one and two hops out, drawn from real AS paths.

AS202561Toward the internet core
Upstream graph for AS202561: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS202561High Speed TelecomThis networkAS6663Türk Telekom Inte…AS214095E Sim internation…AS2914NTT America, Inc.AS5405Inter.link GmbHAS15924Vodafone TurkeyAS208972GIBIRNet Iletisim

Networks observed one and two hops upstream of AS202561 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

6

adjacent networks

Upstreams
233%
Peers
350%
Downstreams
117%

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

Upstreams of AS202561
NetworkCountryRelationshipPathsVantage pts
AS6663Türk Telekom InternationalROPeer1,047139
AS214095E Sim international LLCAEPeer89975

Prefixes

The largest blocks AS202561 originates, widest first.

Largest prefixes originated by AS202561
PrefixAddressesVisibility
185.200.36.0/2425675/76
185.200.37.0/2425675/76
185.200.38.0/2425675/76
185.200.39.0/2425675/76
188.132.221.0/2425676/76
188.132.222.0/2425676/76
194.124.36.0/2425676/76
194.124.37.0/2425675/76
198.145.118.0/2425675/76
198.145.119.0/2425675/76

Routing health

How AS202561'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%11
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%11
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 10 prefixes

IPv6 — 1 prefixes

  • /2934.4B × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS202561 started or stopped in this period.

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