Hanoi · Vietnam
PeeringDB records one exchange in Hanoi, VNIX-HN, with 7 participants, and seven colocation facilities holding 18 networks between them. FPT Fornix HNI 02 reports the most at 6. No carrier ASN is attached to the exchange, so an address geolocating to Hanoi reflects an operator's registration rather than a device in the city.
Internet exchanges in Hanoi
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 |
|---|---|---|
VNIX-HN | 7 | 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 |
|---|---|---|
| FPT Fornix HNI 02 | 6 | FPT Fornix Tower, No 10 Pham Van Bach Street, Cau Giay Ward, Hanoi, Vietnam |
| Viettel HLC | 5 | Viettel Building, Hoa Lac High Tech Zone Km29, Thang Long Street, Thach That Dstrict |
| Telehouse - Hanoi | 3 | FPT Building, Duy Tan Street, Cau Giay District 3rd & 4th floors |
| VNIX-HN | 2 | 18 Nguyen Du Street - Ha Noi - VietNam |
| FPT Fornix HNI 01 | 1 | FPT Building, Duy Tan Street, Cau Giay District |
| EcoDC | 1 | EcoDC Building, Hanoi Telecom High-Tech Complex, ICT Park Lot E4 - Km 27 + 300, Thang Long Avenue, Thach That Commune |
| CMC Duy Tan (Hanoi) | 0 | CMC Building, Duy Tan Street Dich Vong Hau Ward, Cau Giay Distric, Hanoi City |
What a Hanoi IP address tells you
VNIX-HN is the only exchange PeeringDB lists in Hanoi, and its 7 participants are the city's entire recorded peering population. More of the documented capacity sits in colocation, where seven buildings hold 18 network presences. FPT Fornix HNI 02 has 6 and Viettel HLC has 5, followed by Telehouse - Hanoi with 3, the VNIX-HN facility with 2, and FPT Fornix HNI 01 and EcoDC with one each. CMC Duy Tan (Hanoi) is on the register with no networks recorded. No carrier ASN is attached to the exchange, and the carrier data behind this page holds no Vietnamese mobile operator.
A database placing an address in Hanoi does not put a device in Hanoi. Operators announce address blocks from a registry record that gives one location for an allocation covering a wide service area, and mobile traffic reaches the public internet through a handful of gateways rather than from wherever the subscriber stands. Geolocation databases follow the operator's own published location, so a connection made anywhere in Vietnam can resolve to Hanoi while the handset never passed through VNIX-HN or any of the seven listed buildings.
Checking an address works better on the origin ASN and the netname of the specific prefix than on the city field. The ASN identifies the network that announced the block, and the netname records how that network chose to label the range, including whether it belongs to a mobile pool. Neither confirms that traffic touched VNIX-HN or one of the 18 network presences in the city's facilities. Those 7 participants describe documented peering in Hanoi, not the physical position of an address.
Questions
Which internet exchanges are in Hanoi?
PeeringDB lists one, VNIX-HN, with 7 participants. It also appears as a facility with 2 networks. No second exchange is recorded for the city, and networks that peer privately inside a colocation building do not show up in that participant count.
Do Vietnam mobile carriers peer in Hanoi?
The registry attaches no carrier ASN to VNIX-HN, and no Vietnamese mobile operator appears in the carrier data behind this page. The record is silent rather than negative, so it does not show that mobile networks are absent from the city.
Does an IP that geolocates to Hanoi mean the device is there?
No. The city comes from the address block's registration and the operator's published location, not from the device itself. A subscriber elsewhere in Vietnam can exit through a gateway whose prefix is registered in Hanoi, and a lookup still returns the city.
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