Interconnection

AS6204 ZET-NET ZET.NET IP Transit

Unclassified RIPE

Exchanges 25 25 active

Countries 14 most in Netherlands

Regions 2

Largest fabric 1,077 DE-CIX Frankfurt

Recorded presence

Internet exchanges

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS6204, 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 24 North America 1

Exchange	Location	Their address	Policy	Member ports
DE-CIX Frankfurt	Frankfurt, Germany	80.81.196.247	Selective	1,077
LINX LON1	London, United Kingdom	195.66.224.209	Selective	930
AMS-IX Amsterdam	Amsterdam, Netherlands	80.249.214.200	Open	882
Neutral Internet Exchange	Amsterdam, Netherlands	193.239.117.63	Selective	671
TPIX - Internet Exchange	Warsaw, Poland	195.149.233.156	Open	472
Milan Internet Exchange	Milan, Italy	217.29.67.192	—	418
Equinix Internet Exchange Ashburn	Ashburn, United States	206.126.237.217	Selective	390
The Frys Internet Exchange	Frysian, Netherlands	2001:7f8:10f::183c:30	Selective	339
London Network Access Point	London, United Kingdom	5.57.82.41	Open	315
NetIX	Sofia, Bulgaria	185.1.226.165	Selective	264
InterIX Internet Exchange	Amsterdam, Netherlands	2001:7f8:134::51	Open	234
Peering.cz	Prague, Czech Republic	185.0.20.31	Selective	211
NIX.CZ - Neutral Internet eXchange for the Czech Republic	Prague, Czech Republic	91.210.16.172	Open	208
ERA-IX Amsterdam	Amsterdam, Netherlands	185.1.240.72	—	200
Vienna Internet Exchange	Vienna, Austria	193.203.0.79	Selective	187
ESpanix Madrid Lower LAN	Madrid, Spain	193.149.1.229	Selective	175
Nine IX	Paris, France	185.1.14.173	—	165
InterLAN-IX	Bucharest, Romania	86.104.125.95	Selective	148
Bulgarian Internet eXchange	Sofia, Bulgaria	193.169.199.71	Selective	139
Internet Neutral Exchange Association CLG - LAN1	Dublin, Ireland	185.6.36.149	Selective	116
LayerSwitch Internet Exchange	The Hague, Netherlands	185.1.32.79	Open	104
ERA-IX Frankfurt	Frankfurt, Germany	185.0.27.9	—	88
IXPlay Global Peers	Madrid, Spain	185.1.90.105	Selective	63
Serbian Open Exchange	Belgrade, Serbia	185.1.27.130	Selective	44
ERA-IX Vienna	Vienna, Austria	91.213.211.135	—	16

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 2026-10-15 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,346 exchanges and 97,714 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.