AS203963SPDNet Telekomunikasyon Hizmetleri Bilgi Teknolojileri Taahhut Sanayi Ve Ticaret A.S.
TürkiyeRegistryRIPE NCCAs of 10th November 2026, AS203963 (SPDNet Telekomunikasyon Hizmetleri…), a network registered in Türkiye with RIPE NCC, originates 25 IPv4 prefixes covering 7.9k addresses. By IPv4 address space that makes it the 12,782nd-largest of the 80,723 networks we see originating IPv4, and the 75th-largest of 871 in Türkiye. It is seen behind 1 upstream network, most often AS9009 (M247 Europe SRL). 80% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 96% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS203963 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS203963 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.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS9009M247 Europe SRL |  RO | Peer | 1,825 | 76 |
Prefixes
The largest blocks AS203963 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 31.133.80.0/22 | 1k | 76/76 |
| 176.103.224.0/22 | 1k | 76/76 |
| 31.133.88.0/24 | 256 | 76/76 |
| 31.133.89.0/24 | 256 | 76/76 |
| 31.133.90.0/24 | 256 | 76/76 |
| 31.133.91.0/24 | 256 | 76/76 |
| 91.228.12.0/24 | 256 | 76/76 |
| 91.228.14.0/24 | 256 | 76/76 |
| 91.228.15.0/24 | 256 | 76/76 |
| 94.154.37.0/24 | 256 | 76/76 |
Routing health
How AS203963'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
- Valid80.0%20
- Invalid0.0%0
- No ROA20.0%5
Propagation
- Globally propagated90% of full-feed peers or more96.0%24
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%4.0%1
Prefix sizes
IPv4 — 25 prefixes
Recent changes
Announcements that started or stopped since 11th Oct 2026.
- Announced103.125.147.0/2429th Oct 2026
- Withdrawn103.125.147.0/2412th Oct 2026
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.