Sydney · Australia
PeeringDB records seven exchanges in Sydney. MegaIX Sydney has the most participants at 227, ahead of Equinix Sydney with 217 and IX Australia Sydney (NSW-IX) with 183. Fifteen colocation facilities hold 851 network presences. An IP that geolocates to Sydney identifies the registry record covering that address block, not the place a device sits.
Internet exchanges in Sydney
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 |
|---|---|---|
MegaIX Sydney Megaport MegaIX Sydney | 227 | none in the registry |
Equinix Sydney Equinix Internet Exchange Sydney | 217 | none in the registry |
IX Australia Sydney (NSW-IX) New South Wales Internet Exchange | 183 | none in the registry |
EdgeIX - Sydney | 131 | none in the registry |
BGP.Exchange - Sydney | 23 | none in the registry |
HSIX-NSW HackerSpace Networking - Sydney, NSW | 1 | none in the registry |
HSIX-APAC HackerSpace Networking - Oceania | 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 |
|---|---|---|
| Equinix SY1/SY2 - Sydney | 200 | 639 Gardeners Road Mascot |
| Equinix SY3 - Sydney | 174 | 47 Bourke Road Alexandria |
| Equinix SY4 - Sydney | 144 | Unit A, 200 Bourke Road Alexandria |
| NEXTDC S1 | 107 | 4 Eden Park Drive Macquarie Park |
| DigiCo Sydney SYD1 (formerly Global Switch Australia) | 103 | 400 Harris Street Ultimo |
| Equinix SY5 - Sydney | 95 | Unit B, 200 Bourke Road Alexandria |
| Vocus Sydney SYD01 | 16 | Doody Street Alexandria |
| PIPE Networks Sydney | 3 | Level 13, 2 Park St, |
| Intellicentre 1 (IC1) | 3 | 477 Pitt Street |
| 5GN North Sydney Data Centre (NSDC) | 3 | 39 Herbert Street St Leonards |
| AAPT Glebe | 1 | 30 Ross Street Glebe |
| Optus Ultimo | 1 | 549 Harris St Ultimo |
Showing the 12 facilities with the most networks, of 15 recorded.
What a Sydney IP address tells you
Sydney holds more peering than any other Australian city in this registry data. MegaIX Sydney records 227 participants and Equinix Sydney 217, with IX Australia Sydney (NSW-IX) on 183 and EdgeIX Sydney on 131. BGP.Exchange Sydney adds 23, and the two HackerSpace fabrics have almost nobody on them. Capacity sits in exchanges and in colocation together, 782 peers across the exchanges alongside 851 network presences spread over fifteen facilities, from Equinix SY1/SY2 with 200 networks down to AAPT Glebe and Optus Ultimo with one each. No Australian mobile ASN appears on a Sydney exchange participant list.
An address that geolocates to Sydney can sit on hardware a long way from it. Telstra (AS1221), Optus (AS4804) and Vodafone Australia (AS133612) announce address blocks against a registry record that carries one company address, and mobile traffic leaves the network through a small number of gateways rather than from the cell a handset is attached to. Geolocation databases follow the location an operator publishes for a prefix, so a block registered to a Sydney office reads as Sydney for every subscriber it covers, wherever they are.
Someone checking an address learns more from the origin ASN and the netname on the specific prefix than from the city label. A route originating in AS1221, AS4804 or AS133612 is mobile access whatever city a database prints. A prefix belonging to a network that peers at MegaIX Sydney or keeps equipment in Equinix SY3, where 174 networks are present, is hosting. The exchange and facility counts here describe which networks have kit in Sydney, and nothing about where any individual subscriber is.
Mobile carriers in Australia
A mobile address in Sydney 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 Sydney?
PeeringDB lists seven. MegaIX Sydney has 227 participants, Equinix Sydney 217, IX Australia Sydney (NSW-IX) 183, EdgeIX Sydney 131 and BGP.Exchange Sydney 23. HSIX-NSW records one participant and HSIX-APAC none. Together the Sydney exchanges account for 782 peer records.
Do Australian mobile carriers peer in Sydney?
No Sydney exchange in this data lists Telstra (AS1221), Optus (AS4804) or Vodafone Australia (AS133612) as a participant. Optus does have a facility record, Optus Ultimo, with one network present. PeeringDB shows what networks publish, so silence there is not proof of absence.
Does an IP that geolocates to Sydney mean the device is there?
No. Geolocation databases copy the location an operator publishes for a prefix, and mobile networks carry subscribers out through a handful of gateways. A Sydney result tells you which registry record covers the address. The origin ASN tells you whether it is a mobile network or a hosting network.
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