Autonomous System

AS9121

Turk Telekom

Turk Telekom Türkiye 🌐 turktelekom.com.tr

Announced IPs

6,824,959

CIDR prefixes

469

ASN

AS9121

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

58/100

Caution

How this score is built

Baseline (neutral) 65
Multiple-origin (MOAS) routing anomaly −12
Isp allocation +5
Trust score 58 / 100

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 100+ MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS9121 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

Prefix	Origin ASNs	Last detected (UTC)
88.242.162.0/23	AS9121, AS47331	2026-07-18 11:37:44
88.227.186.0/23	AS9121, AS47331	2026-07-18 11:37:44
85.98.67.0/24	AS9121, AS47331	2026-07-18 11:37:44
88.226.6.0/24	AS9121, AS47331	2026-07-18 11:37:44
78.164.250.0/24	AS9121, AS47331	2026-07-18 11:37:44
78.181.142.0/24	AS9121, AS47331	2026-07-18 11:37:44
0.0.0.0/0	AS9121, AS212271	2026-07-18 11:37:44
88.243.14.0/24	AS9121, AS47331	2026-07-18 11:37:44
78.170.240.0/21	AS9121, AS47331	2026-07-18 11:37:44
85.109.42.0/23	AS9121, AS47331	2026-07-18 11:37:44
85.96.194.0/23	AS9121, AS47331	2026-07-18 11:37:44
88.246.31.0/24	AS9121, AS47331	2026-07-18 11:37:44
85.99.86.0/24	AS9121, AS47331	2026-07-18 11:37:44
88.226.120.0/23	AS9121, AS47331	2026-07-18 11:37:44
88.249.133.0/24	AS9121, AS47331	2026-07-18 11:37:44

Showing the 15 most recently detected of 100+ MOAS prefixes. Many multi-origin prefixes on large networks are benign (anycast); see all MOAS anomalies.

Network profile

Source: PeeringDB →

Network type NSP

Geographic scope Europe

Traffic ratio Mostly Inbound

Peering policy Selective

IRR record AS-TTNET

Present at 2 internet exchanges: DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, AMS-IX

Website ↗ Looking glass ↗

Web3 footprint

AS9121 hosts 3 observed decentralized-network nodes across 1 network. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.

IPFS IPFS 3

AS9121 — global IP footprint

Cities where AS9121 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDR	IPs	PTR Density	Organization	Country	State	City
85.96.0.0/13	524.3K	94.0%	Turk Telekom	TR	Istanbul	Istanbul
88.248.0.0/13	524.3K	72.0%	Turk Telekom	TR	Istanbul	Istanbul
95.8.0.0/13	524.3K	99.6%	Turk Telekom	TR	Burdur	Burdur
78.164.0.0/14	262.1K	96.9%	Turk Telekom	TR	Amasya	Amasya
78.176.0.0/14	262.1K	93.9%	Turk Telekom	TR	Ankara	Ankara
78.188.0.0/14	262.1K	93.8%	Turk Telekom	TR	Istanbul	Istanbul
81.212.0.0/14	262.1K	50.0%	Turk Telekom	TR	Istanbul	Istanbul
85.96.0.0/14	262.1K	94.0%	Turk Telekom	TR	Bursa Province	Bursa
85.104.0.0/14	262.1K	99.9%	Turk Telekom	TR	Balıkesir	Aivali
88.232.0.0/14	262.1K	99.6%	Turk Telekom	TR	Istanbul	Istanbul
88.244.0.0/14	262.1K	100.0%	Turk Telekom	TR	Ankara	Ankara
78.164.0.0/15	131.1K	100.0%	Turk Telekom	TR	Amasya	Amasya
78.174.0.0/15	131.1K	99.9%	Turk Telekom	TR	Uşak	Uşak
78.176.0.0/15	131.1K	94.0%	Turk Telekom	TR	Istanbul	Istanbul
78.182.0.0/15	131.1K	93.7%	Turk Telekom	TR	Amasya	Merzifon
78.186.0.0/15	131.1K	93.9%	Turk Telekom	TR	Istanbul	Sarıyer
78.188.0.0/15	131.1K	0.0%	—	TR	Istanbul	Istanbul
85.100.0.0/15	131.1K	94.0%	Turk Telekom	TR	Istanbul	Istanbul
85.104.0.0/15	131.1K	0.0%	—	TR	Istanbul	Istanbul
85.108.0.0/15	131.1K	99.9%	Turk Telekom	TR	Balıkesir	Panderma
88.224.0.0/15	131.1K	100.0%	Turk Telekom	TR	Kocaeli	İzmit
88.230.0.0/15	131.1K	100.0%	Turk Telekom	TR	Trabzon	Trabzon
88.232.0.0/15	131.1K	99.6%	Turk Telekom	TR	Sinop	Sinop
88.242.0.0/15	131.1K	100.0%	Turk Telekom	TR	Istanbul	Maltepe
88.248.0.0/15	131.1K	99.9%	Turk Telekom	TR	İzmir Province	Narlıdere
88.254.0.0/15	131.1K	88.1%	Turk Telekom	TR	Kırklareli	Kırklareli
95.2.0.0/15	131.1K	98.6%	Turk Telekom	TR	Istanbul	Istanbul
95.6.0.0/15	131.1K	100.0%	Turk Telekom	TR	Istanbul	Istanbul
95.8.0.0/15	131.1K	100.0%	Turk Telekom	TR	Çankırı	Çankırı
195.174.0.0/15	131.1K	46.9%	Turk Telekom	TR	Istanbul	Istanbul
78.160.0.0/16	65.5K	99.9%	Turk Telekom	TR	Ankara	Pazar
78.163.0.0/16	65.5K	100.0%	Turk Telekom	TR	Ankara	Ankara
78.166.0.0/16	65.5K	0.0%	—	TR	Manisa	Salihli
78.167.0.0/16	65.5K	94.0%	Turk Telekom	TR	Istanbul	Istanbul
78.168.0.0/16	65.5K	100.0%	Turk Telekom	TR	Istanbul	Istanbul
78.170.0.0/16	65.5K	99.7%	Turk Telekom	TR	Osmaniye	Osmaniye
78.179.0.0/16	65.5K	93.8%	Turk Telekom	TR	Edirne	Zorlanae
78.180.0.0/16	65.5K	93.9%	Turk Telekom	TR	Mersin	Mersin
78.182.0.0/16	65.5K	0.0%	—	TR	Şanlıurfa	Karaköprü
78.185.0.0/16	65.5K	93.6%	Turk Telekom	TR	Batman	Batman
78.187.0.0/16	65.5K	93.9%	Turk Telekom	TR	Istanbul	Sarıyer
78.191.0.0/16	65.5K	0.0%	—	TR	Istanbul	Istanbul
81.214.0.0/16	65.5K	0.0%	—	TR	Istanbul	Istanbul
85.98.0.0/16	65.5K	0.0%	—	TR	Karaman	Ermenek
85.102.0.0/16	65.5K	93.9%	Turk Telekom	TR	Artvin	Hopa
85.105.0.0/16	65.5K	99.9%	Turk Telekom	TR	Istanbul	Istanbul
85.107.0.0/16	65.5K	0.0%	—	TR	Balıkesir	Aivali
85.108.0.0/16	65.5K	99.9%	Turk Telekom	TR	Tekirdağ	Çorlu
85.111.0.0/16	65.5K	95.8%	Turk Telekom	TR	Istanbul	Istanbul
88.227.0.0/16	65.5K	100.0%	Turk Telekom	TR	Ankara	Mamak
88.228.0.0/16	65.5K	100.0%	Turk Telekom	TR	Düzce	Düzce
88.232.0.0/16	65.5K	99.6%	Turk Telekom	TR	Sinop	Sinop
88.234.0.0/16	65.5K	0.0%	—	TR	Istanbul	Istanbul
88.235.0.0/16	65.5K	99.7%	Turk Telekom	TR	Istanbul	Istanbul
88.237.0.0/16	65.5K	99.6%	Turk Telekom	TR	Sakarya	Adapazarı
88.239.0.0/16	65.5K	99.6%	Turk Telekom	TR	Istanbul	Istanbul
88.247.0.0/16	65.5K	0.0%	—	TR	Bursa Province	Yıldırım
88.250.0.0/16	65.5K	100.0%	Turk Telekom	TR	Istanbul	Beyoğlu
88.253.0.0/16	65.5K	100.0%	Turk Telekom	TR	Çorum	Çorum
95.1.0.0/16	65.5K	100.0%	Turk Telekom	TR	Kocaeli	İzmit
95.2.0.0/16	65.5K	0.0%	—	TR	Istanbul	Istanbul
95.4.0.0/16	65.5K	100.0%	Turk Telekom	TR	—	—
95.6.0.0/16	65.5K	0.0%	—	TR	Istanbul	Istanbul
95.11.0.0/16	65.5K	100.0%	Turk Telekom	TR	—	—
95.13.0.0/16	65.5K	99.8%	Turk Telekom	TR	Ankara	Ankara
95.14.0.0/16	65.5K	99.9%	Turk Telekom	TR	Burdur	Burdur
212.156.0.0/16	65.5K	99.0%	Turk Telekom	TR	Istanbul	Istanbul
212.175.0.0/16	65.5K	70.2%	Turk Telekom	TR	Istanbul	Istanbul
62.248.0.0/17	32.8K	0.0%	Turk Telekom	TR	Kayseri	Kayseri
78.160.0.0/17	32.8K	99.8%	Turk Telekom	TR	Istanbul	Sarıyer
78.161.0.0/17	32.8K	99.9%	Turk Telekom	TR	Istanbul	Istanbul
78.162.0.0/17	32.8K	100.0%	Turk Telekom	TR	Ankara	Ankara
78.163.128.0/17	32.8K	0.0%	—	TR	Ankara	Ankara
78.164.128.0/17	32.8K	0.0%	—	TR	Ankara	Ankara
78.165.128.0/17	32.8K	0.0%	—	TR	Istanbul	Istanbul
78.166.128.0/17	32.8K	93.5%	Turk Telekom	TR	Ankara	Ankara
78.169.0.0/17	32.8K	100.0%	Turk Telekom	TR	Ankara	Çankaya
78.170.0.0/17	32.8K	0.0%	—	TR	Giresun	Giresun
78.171.128.0/17	32.8K	99.7%	Turk Telekom	TR	Istanbul	Istanbul
78.172.0.0/17	32.8K	99.9%	Turk Telekom	TR	Bursa Province	Gürsu
78.173.0.0/17	32.8K	99.9%	Turk Telekom	TR	Van	Van
78.174.0.0/17	32.8K	0.0%	—	TR	Kocaeli	İzmit
78.177.128.0/17	32.8K	0.0%	—	TR	Aydın	Efeler
78.178.0.0/17	32.8K	0.0%	—	TR	Istanbul	Maltepe
78.178.128.0/17	32.8K	94.1%	Turk Telekom	TR	Ankara	Ankara
78.179.0.0/17	32.8K	0.0%	—	TR	Ankara	Ankara
78.181.0.0/17	32.8K	93.9%	Turk Telekom	TR	Istanbul	Istanbul
78.183.0.0/17	32.8K	0.0%	—	TR	Istanbul	Istanbul
78.184.128.0/17	32.8K	94.1%	Turk Telekom	TR	Istanbul	Istanbul
78.186.128.0/17	32.8K	93.5%	Turk Telekom	TR	Bursa Province	Kestel
78.190.128.0/17	32.8K	0.0%	—	TR	Kocaeli	Gebze
81.213.0.0/17	32.8K	0.0%	—	TR	Istanbul	Istanbul
81.215.128.0/17	32.8K	0.0%	—	TR	Istanbul	Istanbul
85.96.0.0/17	32.8K	0.0%	—	TR	Istanbul	Istanbul
85.97.0.0/17	32.8K	0.0%	—	TR	Istanbul	Istanbul
85.99.128.0/17	32.8K	0.0%	—	TR	Denizli	Denizli
85.102.128.0/17	32.8K	0.0%	—	TR	Artvin	Hopa
85.103.0.0/17	32.8K	93.6%	Turk Telekom	TR	Istanbul	Istanbul
85.106.128.0/17	32.8K	99.9%	Turk Telekom	TR	Adana	Adana
85.107.128.0/17	32.8K	99.8%	Turk Telekom	TR	Balıkesir	Aivali

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS9121 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

Prefix	Announcement samples	Last seen
95.0.236.0/24	56,859	2026-07-18 10:52:00
212.175.250.0/24	54,685	2026-07-18 10:52:00
88.255.158.0/24	16,600	2026-07-18 10:51:59
81.214.198.0/24	15,235	2026-07-18 10:51:59
195.175.24.0/23	14,763	2026-07-18 10:51:58
85.111.85.0/24	14,475	2026-07-18 10:51:59
85.111.39.0/24	14,420	2026-07-18 10:51:59
212.175.173.0/24	14,417	2026-07-18 10:51:59
212.175.175.0/24	14,411	2026-07-18 10:51:59
212.175.169.0/24	14,389	2026-07-18 10:51:59
212.175.172.0/24	14,387	2026-07-18 10:51:59
212.175.171.0/24	14,358	2026-07-18 10:51:59
95.0.184.0/24	12,272	2026-07-18 10:51:59
95.0.215.0/24	12,228	2026-07-18 10:51:59
95.0.171.0/24	12,193	2026-07-18 10:51:59
95.0.32.0/24	12,170	2026-07-18 10:51:59
95.0.30.0/24	12,165	2026-07-18 10:51:59
95.0.31.0/24	12,161	2026-07-18 10:51:59
95.0.226.0/24	11,857	2026-07-18 10:52:00
88.255.109.0/24	11,621	2026-07-18 10:52:00
78.176.0.0/17	9,970	2026-07-18 10:52:03
78.177.0.0/17	9,923	2026-07-18 10:52:00
88.249.0.0/17	9,798	2026-07-18 10:52:03
88.240.0.0/17	9,728	2026-07-18 10:52:00
88.235.128.0/17	9,645	2026-07-18 10:52:03
78.189.0.0/17	9,371	2026-07-18 10:52:00
212.174.67.0/24	9,212	2026-07-18 10:51:59
78.180.0.0/17	9,184	2026-07-18 10:52:03
195.174.0.0/17	9,169	2026-07-18 10:52:31
78.172.128.0/17	9,148	2026-07-18 10:52:03
88.255.220.0/22	9,124	2026-07-18 10:51:59
95.0.45.0/24	9,110	2026-07-18 10:51:59
212.175.54.0/24	9,052	2026-07-18 10:51:59
212.175.35.0/24	9,026	2026-07-18 10:51:59
78.178.0.0/17	8,900	2026-07-18 10:52:00
95.10.0.0/17	8,890	2026-07-18 10:52:03
81.215.0.0/17	8,890	2026-07-18 10:51:59
78.164.128.0/17	8,729	2026-07-18 10:51:59
95.8.128.0/17	8,533	2026-07-18 10:52:00
78.171.0.0/17	8,489	2026-07-18 10:51:59
78.189.128.0/17	8,477	2026-07-18 10:51:59
85.100.128.0/17	8,359	2026-07-18 10:51:59
88.248.0.0/17	8,346	2026-07-18 10:52:00
78.176.128.0/17	8,332	2026-07-18 10:52:00
81.215.128.0/17	8,275	2026-07-18 10:51:59
95.0.174.0/24	8,239	2026-07-18 10:51:59
95.2.0.0/17	8,236	2026-07-18 10:52:00
88.255.190.0/24	8,210	2026-07-18 10:51:59
95.0.173.0/24	8,209	2026-07-18 10:51:59
88.232.128.0/17	8,187	2026-07-18 10:51:59

Showing top 50 of 8,652 announced prefixes by sample volume.

Frequently Asked Questions

What is AS9121?

AS9121 is an Autonomous System Number assigned to Turk Telekom. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS9121 announce?

AS9121 announces 6.82M IPv4 addresses distributed across 469 routed CIDR prefixes. The network is registered in Türkiye.

Who operates AS9121?

AS9121 is operated by Turk Telekom. The organization is based in Türkiye. You can view all IP ranges and related ASNs on the organization page.

What country is AS9121 registered in?

AS9121 is registered in Türkiye. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-18 11:25:31 UTC