asn.dev

Observed topology

AS6128 CABLE-NET-1

Upstreams 19 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 23
Adjacent (IPv6) 16

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS6128: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,176
AS1299Arelion Sweden ABTransitIPv4868
AS6939Hurricane Electric LLCTransitIPv4 IPv6826
AS174Cogent Communications, LLCTransitIPv4 IPv6586
AS9002RETN LimitedUnclassifiedIPv4 IPv6306
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv6300
AS1273IDDQD-ASBusinessIPv4 IPv6164
AS577Bell CanadaMobileIPv4 IPv6158
AS33891Core-Backbone GmbHHostingIPv4151
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv6143
AS6461Zayo BandwidthTransitIPv4 IPv688
AS852TELUS Communications Inc.ResidentialIPv4 IPv684
AS14907Wikimedia Foundation Inc.HostingIPv4 IPv684
AS24482SG.GSHostingIPv4 IPv667
AS3737PenTeleData Inc.ResidentialIPv461
AS293ESnetUnclassifiedIPv457
AS57463NetIX Communications JSCUnclassifiedIPv457
AS19108OptimumUnclassifiedIPv46
AS58057Securebit AGUnclassifiedIPv41

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.

Transit

Downstream networks

inferred

Networks for which AS6128 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS54004Cablevision Lightpath LLCUnclassifiedIPv4 IPv614,126
AS20940Akamai International B.V.HostingIPv4 IPv6583
AS19720Cablevision Systems Corp.UnclassifiedIPv4537

Adjacency

Adjacent networks

39 shown

Every AS seen directly next to AS6128 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS54004Cablevision Lightpath LLCUnclassifiedIPv4 IPv657,680
AS3356Level 3 Parent, LLCTransitIPv4 IPv616,403
AS6461Zayo BandwidthTransitIPv4 IPv613,638
AS6939Hurricane Electric LLCTransitIPv4 IPv68,970
AS174Cogent Communications, LLCTransitIPv4 IPv63,858
AS9002RETN LimitedUnclassifiedIPv4 IPv63,005
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv62,927
AS577Bell CanadaMobileIPv4 IPv62,312
AS1299Arelion Sweden ABTransitIPv4 IPv62,098
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv61,762
AS33891Core-Backbone GmbHHostingIPv4 IPv61,706
AS14907Wikimedia Foundation Inc.HostingIPv4 IPv61,411
AS852TELUS Communications Inc.ResidentialIPv4 IPv61,251
AS1273IDDQD-ASBusinessIPv4 IPv61,188
AS57463NetIX Communications JSCUnclassifiedIPv41,159
AS293ESnetUnclassifiedIPv41,144
AS24482SG.GSHostingIPv4 IPv61,082
AS20940Akamai International B.V.HostingIPv4 IPv6583
AS19720Cablevision Systems Corp.UnclassifiedIPv4537
AS3737PenTeleData Inc.ResidentialIPv461
AS19108OptimumUnclassifiedIPv46
AS7922Comcast Cable Communications, LLCResidentialIPv41
AS58057Securebit AGUnclassifiedIPv41

Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Interconnection

Exchange presence

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS6128, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it. Recorded at 4 exchanges across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
Equinix Internet Exchange AshburnAshburn, United States206.126.236.150388
Equinix Internet Exchange ChicagoChicago, United States208.115.136.13280
New York International Internet ExchangeNew York, United States198.32.160.186217
Equinix Internet Exchange New YorkNew York, United States198.32.118.1798

Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.

Provenance

Where this comes from

Derived from routing tables collected at 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.

Exchange presence comes from a separate dataset: the directory collected 2026-08-08 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,137 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.