Poznan · Poland
PeeringDB records two internet exchanges in Poznan, Poland. POZIX has 28 participants and EPIX.Poznan 24, for 52 peering records, while ten colocation facilities hold 90 network presences, the busiest being Beyond.pl DC2 with 34. A Poznan IP address reflects where an operator registered and announces a block, not where a device is.
Internet exchanges in Poznan
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 |
|---|---|---|
POZIX Poznan Internet Exchange | 28 | |
EPIX.Poznan | 24 | 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 |
|---|---|---|
| Beyond.pl - DC2 / Poznan | 34 | ul. Adama Kręglewskiego 11 |
| Beyond.pl - DC1 / Poznan | 19 | ul. Półwiejska 42 61-888 Poznan |
| Poznan Supercomputing and Networking Center | 9 | ul. Noskowskiego 12/14 |
| Poznań University of Economics | 7 | PowstaÅ„ców Wielkopolskich 16 |
| Talex | 7 | ul. Karpia 27d |
| Orange Polska // Poznań | 5 | ul. 23 lutego 26 |
| Netia Poznań (POZNH003) | 5 | ul. Stanisława Taczaka 10 61-818 Poznań |
| Poznań City Stadium | 4 | ul. BuÅ‚garska 17 |
| St.Dominic Monastery | 0 | ul. Tadeusza Kosciuszki 99 |
| Systemia.pl Sp. z o.o. | 0 | ul. Karpia 21a |
What a Poznan IP address tells you
Poznan's peering is small next to its colocation. POZIX, the better connected of the two exchanges, has 28 participants and EPIX.Poznan 24, a combined 52 records, while ten facilities account for 90 network presences. Beyond.pl DC2 holds 34 of those and Beyond.pl DC1 19, with Poznan Supercomputing and Networking Center at 9, and Talex and the Poznań University of Economics at 7 each. Two Polish mobile carriers peer at POZIX, T-Mobile Polska on AS12912 and Play on AS201019. A third carrier ASN there, 8246, is not one of the country's mobile networks in this registry.
An address that geolocates to Poznan may be a device anywhere Orange Polska, Play or T-Mobile Polska has coverage. Each announces its mobile addresses from a national ASN, AS5617 for Orange Polska, AS39603 and AS201019 for Play, AS12912 for T-Mobile Polska, and each block carries one location in the registry regardless of where subscribers are. Mobile sessions exit through a small number of gateways, so the visible address usually reflects a gateway. Geolocation databases take the operator's published location, and a city name attached that way can cover a whole country.
For a Poznan address, read the origin ASN and the netname on the exact prefix. A prefix originated by one of the mobile ASNs above is subscriber access wherever the handset happens to be, and a prefix originated by a network colocated at Beyond.pl or the Poznan Supercomputing and Networking Center is a machine in a rack. With 52 peering records and 90 network presences here, Poznan's registry footprint is small enough that the prefix data, not the city label, is what tells the two apart.
Mobile carriers in Poland
A mobile address in Poznan is routed by one of the country's operators. Each entry lists the operator's ASNs, so you can check which network an address belongs to.
Questions
Which internet exchanges are in Poznan?
Two are recorded, POZIX with 28 participants and EPIX.Poznan with 24. Their combined 52 records are fewer than the 90 network presences held across the city's ten colocation facilities, so more of Poznan's registry footprint sits in buildings than on peering fabrics.
Do Polish mobile carriers peer in Poznan?
Two do, at POZIX. T-Mobile Polska appears with AS12912 and Play with AS201019. Orange Polska's mobile AS5617 and Play's other ASN, 39603, are not listed on either Poznan exchange in this snapshot, though private interconnects go unpublished in PeeringDB.
Does an IP that geolocates to Poznan mean the device is there?
No. The label comes from the location an operator published for the address block, and mobile blocks cover a national footprint. Checking the origin ASN and the netname on the prefix tells you more than the city a lookup prints.
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