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AS3786LG DACOM Corporation

South KoreaRegistryAPNICTypeEyeball

As of 12th November 2026, AS3786 (LG DACOM Corporation), an access network registered in South Korea with APNIC, originates 864 IPv4 prefixes covering 8.7M addresses and 62 IPv6 prefixes. By IPv4 address space that makes it the 80th-largest of the 80,772 networks we see originating IPv4, and the 4th-largest of 915 in South Korea. It is seen behind 53 upstream networks, most often AS6453 (TATA Communications (America) Inc) and AS3356 (Lumen (Level 3)), and in front of 405 downstream networks. Under 1% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 97% of its routes reach at least 90% of full-feed peers, and 6 prefixes are also originated by another network.

At a glance

IPv4 prefixes

864

IPv6 prefixes

62

IPv4 addresses

8.7M

IPv6 /64s

20.8B

Upstream graph

The networks AS3786 is seen behind, one and two hops out, drawn from real AS paths.

AS3786Toward the internet core
Upstream graph for AS3786: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS3786LG DACOM Corporat…This networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3356Lumen (Level 3)AS6453TATA Communicatio…AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS49544i3D.net B.VAS215859Hetzner Cloud - S…AS3549Lumen (fka. Globa…AS8220COLTAS32590Valve Corporation

Networks observed one and two hops upstream of AS3786 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

1,128

adjacent networks

Upstreams
535%
Peers
67059%
Downstreams
40536%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 53.

Upstreams of AS3786
NetworkCountryRelationshipPathsVantage pts
AS6453TATA Communications (America) IncUSPeer76,36238
AS3356Lumen (Level 3)USPeer54,70827
AS2914NTT America, Inc.USPeer54,13247
AS1299Arelion (fka. Telia Carrier)SEPeer22,75629
AS174Cogent Communications, LLCUSPeer21,83684
AS2497Internet Initiative Japan Inc.JPPeer20,1116
AS6939Hurricane Electric LLCUSPeer19,32515
AS9002RETN LimitedGBPeer18,7646
AS3491PCCW Global (HK) Ltd.HKPeer17,82783
AS6667Elisa OyjFIPeer15,7702

Prefixes

All 926

The largest blocks AS3786 originates, widest first.

Largest prefixes originated by AS3786
PrefixAddressesVisibility
1.208.0.0/121M77/78
106.240.0.0/121M77/78
58.72.0.0/13524k77/78
61.32.0.0/13524k77/78
112.216.0.0/13524k77/78
115.88.0.0/13524k77/78
58.148.0.0/14262k78/78
61.40.0.0/14262k78/78
118.128.0.0/14262k78/78
121.64.0.0/14262k78/78

Routing health

How AS3786's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid1.0%9
  • Invalid0.0%0
  • No ROA99.0%917

Propagation

  • Globally propagated90% of full-feed peers or more96.8%896
  • Partially propagated40% to 90%1.0%9
  • Seen by few peersUnder 40%2.3%21

Prefix sizes

IPv4 — 864 prefixes

IPv6 — 62 prefixes

  • /324.3B × /643.2%2
  • /332.1B × /641.6%1
  • /341.1B × /641.6%1
  • /35537M × /641.6%1
  • /36268M × /6448.4%30
  • /37134M × /643.2%2
  • /3933.6M × /643.2%2
  • /4016.8M × /648.1%5
  • /418.4M × /641.6%1
  • /424.2M × /641.6%1
  • /432.1M × /641.6%1
  • /441M × /641.6%1
  • /45524k × /641.6%1
  • /46262k × /641.6%1
  • /47131k × /641.6%1
  • /4865.5k × /649.7%6
  • /49 and longerAggregated8.1%5

Recent changes

Announcements that started or stopped since 13th Oct 2026.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.