AS9121Turk Telekom
TürkiyeRegistryRIPE NCCTypeEyeballAs of 26th September 2026, AS9121 (Turk Telekom), an access network registered in Türkiye with RIPE NCC, originates 1,177 IPv4 prefixes covering 15.7M addresses and 204 IPv6 prefixes. By IPv4 address space that makes it the 45th-largest of the 79,480 networks we see originating IPv4, and the largest of 857 in Türkiye. It is seen behind 27 upstream networks, most often AS2914 (NTT America, Inc.) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 352 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 35% of its routes reach at least 90% of full-feed peers, and 44 prefixes are also originated by another network.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS9121 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS9121 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
763
adjacent networks
- Upstreams
- 274%
- Peers
- 38450%
- Downstreams
- 35246%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS2914NTT America, Inc. |  US | Peer | 125,206 | 132 |
| AS1299Arelion (fka. Telia Carrier) |  SE | Peer | 102,719 | 97 |
| AS3356Lumen (Level 3) | US | Peer | 67,289 | 114 |
| AS7768Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERI | TR | Peer | 55,330 | 2 |
| AS3257GTT Communications Inc. | US | Peer | 26,411 | 80 |
| AS6939Hurricane Electric LLC | US | Peer | 17,658 | 24 |
| AS2497Internet Initiative Japan Inc. |  JP | Peer | 14,304 | 6 |
| AS3320Deutsche Telekom AG |  DE | Peer | 13,736 | 80 |
| AS7713PT Telkom Indonesia Tbk |  ID | Peer | 9,143 | 5 |
| AS34984Superonline Iletisim Hizmetleri A.S. | TR | Peer | 8,209 | 5 |
Prefixes
All 1,381The largest blocks AS9121 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 78.160.0.0/11 | 2.1M | 80/81 |
| 88.224.0.0/11 | 2.1M | 79/81 |
| 85.96.0.0/12 | 1M | 79/81 |
| 95.0.0.0/12 | 1M | 79/81 |
| 81.212.0.0/14 | 262k | 80/81 |
| 195.174.0.0/15 | 131k | 81/81 |
| 212.174.0.0/15 | 131k | 81/81 |
| 212.156.0.0/16 | 65.5k | 81/81 |
| 62.248.0.0/17 | 32.8k | 81/81 |
| 78.160.0.0/17 | 32.8k | 81/81 |
Routing health
How AS9121'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%1,381
- Invalid0.0%0
- No ROA0.0%0
Propagation
- Globally propagated90% of full-feed peers or more34.8%480
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%65.2%901
Prefix sizes
IPv4 — 1,177 prefixes
IPv6 — 204 prefixes
- /324.3B × /643.4%7
- /36268M × /6454.9%112
- /4016.8M × /6421.6%44
- /4865.5k × /6420.1%41
Recent changes
Announcements that started or stopped since 27th Aug 2026.
- Withdrawn212.156.172.0/2224th Sept 2026
- Withdrawn212.156.205.0/2424th Sept 2026
- Withdrawn212.156.206.0/2424th Sept 2026
- Withdrawn212.156.207.0/2424th Sept 2026
- Withdrawn212.156.208.0/2424th Sept 2026
- Withdrawn212.156.209.0/2424th Sept 2026
- Withdrawn212.156.210.0/2424th Sept 2026
- Withdrawn212.156.214.0/2424th Sept 2026
- Withdrawn212.156.216.0/2324th Sept 2026
- Withdrawn212.156.218.0/2324th Sept 2026
- Withdrawn212.156.221.0/2424th Sept 2026
- Withdrawn212.156.222.0/2424th Sept 2026
97 announced and 7,203 withdrawn in all; the most recent are shown.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.