Shibuya · Japan
PeeringDB records one internet exchange in Shibuya, MSR IX, with 10 participants and no colocation facilities listed. That single exchange accounts for all 10 of the city's peering records. An address that geolocates to Shibuya reflects the location an operator published for the block, and the registry holds almost nothing else about the city.
Internet exchanges in Shibuya
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 |
|---|---|---|
MSR IX JSMSR Networks MSR Internet Exchange | 10 | none in the registry |
Exchange records: PeeringDB.
What a Shibuya IP address tells you
Shibuya has one entry in PeeringDB. MSR IX, listed in full as JSMSR Networks MSR Internet Exchange, has 10 participants, and those 10 are the whole of the city's peering record. No colocation facility is registered in Shibuya, so there are no facility network presences to count either. Whatever interconnection serves addresses labelled Shibuya is happening on infrastructure that PeeringDB records under another location, not in the city's own listing.
MSR IX records no carrier ASN among its participants, and the Japanese carrier registry used here lists no mobile operator ASNs, so no mobile network can be tied to Shibuya from this data. An address that geolocates here reflects a registry record an operator filled in. Mobile traffic leaves through a small number of gateways that can sit far from the address label, and geolocation databases repeat the operator's published location without checking where packets enter the network.
With one exchange and no facilities on file, the city name carries very little routing information. The origin ASN and the netname on the specific prefix say who announces the address and under what allocation, which is a firmer answer than the city field. Compare that ASN against exchanges and facilities recorded elsewhere in Japan to see where the network genuinely interconnects.
Questions
Which internet exchanges are in Shibuya?
One. MSR IX, or JSMSR Networks MSR Internet Exchange, has 10 participants in PeeringDB. No other exchange and no colocation facility is registered under Shibuya, so those 10 participants are the city's entire recorded peering presence.
Do Japanese mobile carriers peer in Shibuya?
No carrier ASN is recorded at MSR IX, and the Japanese carrier registry used here holds no mobile operator ASNs. On this data nothing links a Japanese mobile network to Shibuya, though absence from PeeringDB is not proof that no network is present.
Does an IP that geolocates to Shibuya mean the device is there?
No. Shibuya has one exchange with 10 participants and no listed facilities, so the label almost always comes from an operator's registry record rather than from equipment in the city. Check the origin ASN on the prefix for a better idea of who routes it.
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