asn.dev

Observed topology

AS6619 SAMSUNGSDS-AS-KR SamsungSDS Inc.

Upstreams 18 carry this network
Downstreams 5 this network carries
Adjacent (IPv4) 24
Adjacent (IPv6) 12

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS6619: 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 IPv62,351
AS4766Korea TelecomMobileIPv4 IPv61,403
AS1299Arelion Sweden ABTransitIPv4 IPv6724
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv6617
AS9318SK Broadband Co LtdUnclassifiedIPv4 IPv6584
AS6939Hurricane Electric LLCTransitIPv4362
AS3758SingNetResidentialIPv4283
AS9002RETN LimitedUnclassifiedIPv4 IPv6245
AS7018AT&T Enterprises, LLCResidentialIPv4 IPv6236
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv6197
AS701Verizon BusinessResidentialIPv4101
AS4635Hong Kong Internet Exchange--Route Server 1UnclassifiedIPv488
AS24482SG.GSHostingIPv4 IPv688
AS2516KDDI CORPORATIONMobileIPv446
AS174Cogent Communications, LLCTransitIPv443
AS38001NewMedia Express Pte LtdHostingIPv413
AS17639Converge ICT Solutions Inc.UnclassifiedIPv413
AS10021KVH Co.,LtdUnclassifiedIPv413

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 AS6619 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS54253Oracle CorporationUnclassifiedIPv4 IPv62,196
AS45985SamsungSDS Inc.UnclassifiedIPv41,391
AS31898Oracle CorporationHostingIPv4 IPv6540
AS38130SamsungSDS Inc.UnclassifiedIPv4350
AS138380VOLVO GROUP KOREA CO LTD, Construction Equipment SeoulUnclassifiedIPv4128

Adjacency

Adjacent networks

36 shown

Every AS seen directly next to AS6619 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS4766Korea TelecomMobileIPv4 IPv63,082
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,631
AS54253Oracle CorporationUnclassifiedIPv4 IPv62,196
AS9318SK Broadband Co LtdUnclassifiedIPv4 IPv61,599
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv61,523
AS45985SamsungSDS Inc.UnclassifiedIPv41,391
AS1299Arelion Sweden ABTransitIPv4 IPv6784
AS31898Oracle CorporationHostingIPv4 IPv6540
AS6939Hurricane Electric LLCTransitIPv4382
AS9957KINXHostingIPv4 IPv6369
AS38130SamsungSDS Inc.UnclassifiedIPv4350
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv6300
AS3758SingNetResidentialIPv4297
AS7018AT&T Enterprises, LLCResidentialIPv4 IPv6286
AS9002RETN LimitedUnclassifiedIPv4 IPv6273
AS4635Hong Kong Internet Exchange--Route Server 1UnclassifiedIPv4138
AS138380VOLVO GROUP KOREA CO LTD, Construction Equipment SeoulUnclassifiedIPv4128
AS24482SG.GSHostingIPv4 IPv6115
AS701Verizon BusinessResidentialIPv4103
AS2516KDDI CORPORATIONMobileIPv446
AS174Cogent Communications, LLCTransitIPv443
AS38001NewMedia Express Pte LtdHostingIPv414
AS17639Converge ICT Solutions Inc.UnclassifiedIPv414
AS10021KVH Co.,LtdUnclassifiedIPv413

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 AS6619, 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 7 exchanges across 5 countries and 3 regions.

ExchangeLocationTheir addressMember ports
LINX LON1London, United Kingdom195.66.225.191925
Hong Kong Internet ExchangeHong Kong, China123.255.91.232307
Singapore Internet ExchangeSingapore, Singapore103.16.103.37273
Equinix Internet Exchange DallasDallas, United States206.223.118.239225
Equinix Internet Exchange San Jose (Bay Area)San Jose, United States206.223.116.135193
Equinix Internet Exchange New YorkNew York, United States198.32.118.6498
Korea Internet Neutral Exchange KINXSeoul, South Korea139.150.100.2864

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 2026-08-09 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,164 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.