Interconnection

AS1764 NEXTLAYER-AS

Unclassified RIPE

Exchanges 8 8 active

Countries 5 most in Austria

Regions 1

Largest fabric 1,078 DE-CIX Frankfurt

Recorded presence

Internet exchanges

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS1764, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's page, with its peering LANs and everyone else on it.

Europe 8

Exchange	Location	Their address	Policy	Member ports
DE-CIX Frankfurt	Frankfurt, Germany	80.81.194.56	Selective	1,078
AMS-IX Amsterdam	Amsterdam, Netherlands	80.249.211.123	Open	882
SwissIX	Zurich, Switzerland	91.206.52.10	Selective	256
Peering.cz	Prague, Czech Republic	185.0.21.31	Selective	211
NIX.CZ - Neutral Internet eXchange for the Czech Republic	Prague, Czech Republic	91.210.17.59	Selective	208
Vienna Internet Exchange	Vienna, Austria	193.203.0.22	Selective	186
Salzburg Internet eXchange	Salzburg, Austria	185.1.43.14	Selective	33
Alpes Adria Internet Exchange	Klagenfurt, Austria	193.37.144.29	Selective	22

Recorded rather than inferred: an address on a peering LAN is at that exchange by definition. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. An absent exchange means PCH has no record of it, not that the network is not there. For the operator's own claims, see its PeeringDB record.

From the exchange directory collected 2026-10-16 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,346 exchanges and 97,671 recorded member ports, licensed CC BY-NC-SA 3.0.

PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.