Oslo · Norway
PeeringDB records six internet exchanges in Oslo and 16 colocation facilities holding 178 network presences. NIX1, the Norwegian Internet Exchange, is the best connected with 66 participants, ahead of FIXO with 40. An IP that geolocates to Oslo shows where its operator registered the address block, not where a device sits.
Internet exchanges in Oslo
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 |
|---|---|---|
NIX1 Norwegian Internet Exchange, NIX1 (location 1) | 66 | |
FIXO FIXO Internet Exchange Oslo | 40 | none in the registry |
NIX2 Norwegian Internet Exchange (location 2) | 11 | none in the registry |
DE-CIX Oslo | 9 | |
Netnod Oslo BLUE -- MTU9K | 4 | none in the registry |
Netnod Oslo GREEN -- MTU9K | 4 | 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 |
|---|---|---|
| Vaultica Data Centers | OSL01 | 51 | Ulvenveien 89b |
| Bulk Oslo Internet Exchange - OS-IX | 43 | Hans Møller Gasmanns vei 9 |
| Blix BDC Oslo | 25 | 26 Lindeberg næringsvei |
| Verizon HMG9 Oslo | 9 | Hans Moller Gasmansvei 9 |
| Arelion Oslo OKR/C | 9 | Østre Aker Vei 18 |
| Forskningsparken Oslo | 8 | Gaustadalléen 21 |
| Blix CJH Oslo | 8 | C.J. Hambros plass 2 |
| GlobalConnect Oslo (HMG9) | 6 | Hans Moller Gasmansvei 9 |
| Blix NR5 Oslo | 5 | Nedre Rommen 5 |
| Basefarm OSL3 | 4 | Grorud |
| Globalconnect Oslo (HMG1) | 3 | Hans Møller Gasmanns vei 1 |
| Rent a Rack | 2 | Ulvenveien 87 |
Showing the 12 facilities with the most networks, of 16 recorded.
What a Oslo IP address tells you
Routing in Oslo concentrates on NIX1, which carries 66 of the 134 exchange participants PeeringDB records in the city. FIXO adds 40, NIX2 eleven, DE-CIX Oslo nine, and the two Netnod Oslo peering LANs four each. Colocation carries comparable weight, with 16 facilities holding 178 network presences, Vaultica Data Centers OSL01 at 51 networks, Bulk Oslo Internet Exchange OS-IX at 43 and Blix BDC Oslo at 25. Two exchanges list a carrier ASN among their participants, AS6667 at NIX1 and AS3292 at DE-CIX Oslo. The carrier registry holds no named Norwegian mobile operator entry to match against them.
An address that geolocates to Oslo may not be a device in Oslo. An operator announces a block from a registry record that names one administrative address, often a head office, and geolocation databases copy that published location down to every prefix underneath it. Mobile traffic widens the gap, because a phone anywhere in Norway leaves the operator network through a small number of gateways, and the public address it gets belongs to the gateway rather than to the tower it is on. A city label describes the paperwork behind a block more than the handset using it.
Someone checking an Oslo address gets more from the origin ASN and the netname on the specific prefix than from the city field. The origin ASN says which network announces the block, and the netname and registry record behind it say who holds the block and how it was delegated. Set that against the networks PeeringDB actually places in Oslo, the 134 exchange participants and the 178 facility presences, and you can see whether the announcing network appears in the city at all.
Questions
Which internet exchanges are in Oslo?
PeeringDB lists six exchanges in Oslo. NIX1 carries 66 participants, FIXO 40, NIX2 eleven, DE-CIX Oslo nine, and the Netnod Oslo BLUE and GREEN MTU9K peering LANs four each, for 134 participant records in total.
Do Norwegian mobile carriers peer in Oslo?
The data does not name any. NIX1 records a carrier ASN, AS6667, and DE-CIX Oslo records AS3292, but the carrier registry holds no Norwegian mobile operator entries, so nothing here identifies which operators those numbers belong to.
Does an IP that geolocates to Oslo mean the device is there?
No. Geolocation databases follow the location an operator publishes for a registered address block, and mobile users across Norway can share gateway addresses recorded to one site. Check the origin ASN and the netname on the exact prefix instead of trusting the city field.
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