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AS3786LG DACOM Corporation

South KoreaRegistryAPNICTypeEyeball

As of 27th September 2026, AS3786 (LG DACOM Corporation), an access network registered in South Korea with APNIC, originates 882 IPv4 prefixes covering 8.7M addresses and 62 IPv6 prefixes. By IPv4 address space that makes it the 79th-largest of the 79,540 networks we see originating IPv4, and the 4th-largest of 909 in South Korea. It is seen behind 56 upstream networks, most often AS6453 (TATA Communications (America) Inc) and AS3356 (Lumen (Level 3)), and in front of 407 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 7 prefixes are also originated by another network.

At a glance

IPv4 prefixes

882

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 LLCAS3130RGnet OUAS49544i3D.net B.VAS3549Lumen (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

1,145

adjacent networks

Upstreams
565%
Peers
68260%
Downstreams
40736%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 56.

Upstreams of AS3786
NetworkCountryRelationshipPathsVantage pts
AS6453TATA Communications (America) IncUSPeer72,39237
AS3356Lumen (Level 3)USPeer53,03125
AS2914NTT America, Inc.USPeer48,24243
AS1299Arelion (fka. Telia Carrier)SEPeer25,00031
AS174Cogent Communications, LLCUSPeer23,22783
AS9002RETN LimitedGBPeer22,09412
AS6939Hurricane Electric LLCUSPeer18,34715
AS2497Internet Initiative Japan Inc.JPPeer18,2196
AS3491PCCW Global (HK) Ltd.HKPeer16,13186
AS6667Elisa OyjFIPeer15,7442

Prefixes

All 944

The largest blocks AS3786 originates, widest first.

Largest prefixes originated by AS3786
PrefixAddressesVisibility
1.208.0.0/121M80/82
106.240.0.0/121M80/82
58.72.0.0/13524k81/82
61.32.0.0/13524k80/82
112.216.0.0/13524k81/82
115.88.0.0/13524k81/82
58.148.0.0/14262k81/82
61.40.0.0/14262k81/82
118.128.0.0/14262k81/82
121.64.0.0/14262k82/82

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%935

Propagation

  • Globally propagated90% of full-feed peers or more97.0%916
  • Partially propagated40% to 90%1.2%11
  • Seen by few peersUnder 40%1.8%17

Prefix sizes

IPv4 — 882 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 29th Aug 2026.

No announcement by AS3786 started or stopped in this period.

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