Istanbul · Turkey
PeeringDB records five internet exchanges in Istanbul, Turkey, and 19 colocation facilities holding 286 network presences. DE-CIX Istanbul is the best connected of them with 69 participants, ahead of GIBIRIX at 20. An IP address that geolocates to Istanbul tells you which operator holds the block, not where a device sits.
Internet exchanges in Istanbul
An exchange is a shared switch where networks hand traffic to each other directly. Participant counts come from PeeringDB, where each network maintains its own record.
| Exchange | Participants | Registry carriers peering |
|---|---|---|
DE-CIX Istanbul | 69 | none in the registry |
GIBIRIX GIBIR Internet Exchange | 20 | none in the registry |
TR-IX TURK Internet eXchange | 12 | none in the registry |
EURASIA-IX.NET | 6 | none in the registry |
TurkIX Istanbul Turkey Internet eXchange | 0 | none in the registry |
Exchange records: PeeringDB.
Colocation facilities
Buildings where networks put equipment. The network count is how many PeeringDB members list a presence there, which shows where capacity in the city sits.
| Facility | Networks present | Address |
|---|---|---|
| MedNautilus Istanbul | 50 | Çobançesme Mah. Kimiz Sokak NO:30 |
| Equinix IL2 - Istanbul | 50 | Yukarı Dudullu Organize Sanayi Bölgesi 3. Cadde No:4 Ümraniye |
| Turk Telekom Atakoy Santrali | 26 | Ataköy 3-4-11, Makbule Atadan Cd No:8 |
| PremierDC Veri Merkezi A.S. - Istanbul | 25 | Otakcilar Cad. No: 78, Kat:4, Flat Ofis |
| TurkNet Iletisim Hizmetleri A.S | 24 | Büyükdere Caddesi No:121, Ercan Plaza Kat:2, 34394 Gayrettepe, İstanbul |
| Radore Istanbul | 24 | Büyükdere Cad. No: 171 Sisli |
| Mars Datacenter Istanbul-1 | 24 | Maslak, Istanbul |
| DATACASA DC IST-1 | 17 | Kayabasi Mahallesi, Ulubatli Hasan Caddesi D Blok No:3 |
| Equinix IL4 - Istanbul | 15 | Dudullu OSB, 3. Cadde No.4, Yukarı Dudullu |
| Datema Bilişim Tic. A.Ş. - DATACASA VERİ MERKEZİ | 10 | Kayabaşı Mahallesi, Ulubatlı Hasan Caddesi, D Blok No:3 34494 Başakşehir/İstanbul |
| Verizon Istanbul | 9 | Cobancesme Mah. Kimiz Sk. No 30 Yenibosna |
| Telehouse - Istanbul | 4 | Kozyatağı Mahallesi Saniye Ermutlu Sok Tekno İş Merkezi No10 Kat:B1 Kadıköy |
Showing the 12 facilities with the most networks, of 19 recorded.
What a Istanbul IP address tells you
DE-CIX Istanbul carries 69 participants, more than three times GIBIRIX at 20, with TR-IX on 12 and EURASIA-IX.NET on 6; TurkIX Istanbul publishes no participants at all. Against 107 exchange participations across those fabrics, the city's 19 colocation facilities hold 286 network presences, so most of the interconnection here sits inside buildings rather than on a shared fabric. MedNautilus Istanbul and Equinix IL2 anchor that side with 50 networks each, and Turk Telekom Atakoy Santrali follows on 26. No exchange in the set publishes a mobile carrier ASN.
An address that a database places in Istanbul may sit on hardware anywhere the holder of the block operates. Operators register address ranges to an organization record with one postal address, and geolocation services read that record, so a range registered to a company with an Istanbul office reads as Istanbul end to end. Mobile networks compound this, because handsets across a wide area leave through a handful of gateways and every subscriber behind one inherits its published location.
Someone checking an Istanbul address gets more from the routing data than from a city label. The origin ASN on the prefix names the operator that announces it, and the netname and registered holder on that range show whether the block belongs to a mobile operator or to a hosting company in one of the 19 facilities. Whether the announcing ASN appears on a participant list at DE-CIX Istanbul or GIBIRIX says something about how its traffic reaches the city; the city label on its own does not.
Questions
Which internet exchanges are in Istanbul?
PeeringDB lists five: DE-CIX Istanbul with 69 participants, GIBIRIX with 20, TR-IX with 12, EURASIA-IX.NET with 6, and TurkIX Istanbul with none recorded. Together they account for 107 participations, while the city's colocation facilities hold more networks again at 286 presences.
Do Turkish mobile carriers peer in Istanbul?
The registry does not say. None of the five Istanbul exchanges publishes a mobile carrier ASN on its participant list in this data, and the carrier registry supplies no mobile ASNs for Turkey, so nothing here confirms or rules out mobile operator peering in the city.
Does an IP that geolocates to Istanbul mean the device is there?
No. Geolocation databases follow the registered organization on the address block and the location the operator publishes for it, either of which can cover a whole country. Mobile addresses pool behind gateways that serve wide areas, so the city label describes the block's paperwork more than the handset.
Sources
- PeeringDB - exchanges, participant counts, facilities and network presence, snapshot 2026-09-07
- PROXIES.SX carrier and ASN registry - operator ASNs used to match peering participants