$ query “AS3786” --type=asn → 1 result(s)

AS3786 · LGDACOM

LG DACOM Corporation

AS3786 is operated by LG DACOM Corporation and serves as a major transit provider, registered in South Korea. The system announces an impressive 8.7 million IPv4 addresses, including a /12, and supports IPv6. The bulk of its IP address space is in South Korea, with additional presence in the United States and Japan, and smaller footprints in 2 additional countries.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #3 in South Korea — Top 10 by reach within country

Basic Information

Country
🇰🇷 South Korea
Category
Internet Service Provider
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Last Changed
March 04, 2026
Last Seen
April 29, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
892 / 398
IPv6 Prefixes (raw / aggregated)
57 / 15
IPv4 Addresses
8 689 664
Largest IPv4 Prefix
/12 (1 048 576 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇰🇷 South Korea (15 516 672 IPs), 🇺🇸 United States (11 520 IPs), 🇯🇵 Japan (6 144 IPs) and 2 more
Prefix Changed
April 14, 2026

Reputation

Reputation
Good — 138 flagged IPs out of 8 689 664 total (0.00%)
Open Proxies
6 known open proxies in this network

Connectivity Summary

Upstream Providers
9 upstreams providing transit
Peers
159 networks exchanging traffic without transit
Downstream Customers
417 downstreams buying transit
Unclassified
9 unclassified BGP neighbors
Degree
594 unique BGP neighbors
Reach
7 804 networks in customer cone

Upstream Providers (9)

  • AS174 — COGENT-174 (Tier-1 transit)
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS3549 — LVLT-3549
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS3491 — PCCWG-APAC-HK (Tier-1 transit)
  • AS52025 — PARADOXNETWORKS-LIMITED
  • AS4637 — ASN-TELSTRA-GLOBAL
  • AS6453 — AS6453 (Tier-1 transit)

Prefix Lists

IPv4 Prefixes (892 total)

  • 1.208.0.0/12 (1 048 576 addresses (/12 prefix))
  • 106.240.0.0/12 (1 048 576 addresses (/12 prefix))
  • 58.72.0.0/13 (524 288 addresses (/13 prefix))
  • 112.216.0.0/13 (524 288 addresses (/13 prefix))
  • 115.88.0.0/13 (524 288 addresses (/13 prefix))
  • 61.32.0.0/13 (524 288 addresses (/13 prefix))
  • 211.168.0.0/14 (262 144 addresses (/14 prefix))
  • 123.140.0.0/14 (262 144 addresses (/14 prefix))
  • 61.40.0.0/14 (262 144 addresses (/14 prefix))
  • 121.64.0.0/14 (262 144 addresses (/14 prefix))
  • 118.128.0.0/14 (262 144 addresses (/14 prefix))
  • 58.148.0.0/14 (262 144 addresses (/14 prefix))
  • 211.118.0.0/15 (131 072 addresses (/15 prefix))
  • 60.196.0.0/15 (131 072 addresses (/15 prefix))
  • 59.186.0.0/15 (131 072 addresses (/15 prefix))
  • 220.68.0.0/15 (131 072 addresses (/15 prefix))
  • 220.66.0.0/15 (131 072 addresses (/15 prefix))
  • 210.206.0.0/15 (131 072 addresses (/15 prefix))
  • 211.180.0.0/15 (131 072 addresses (/15 prefix))
  • 211.53.0.0/16 (65 536 addresses (/16 prefix))
  • 210.182.0.0/16 (65 536 addresses (/16 prefix))
  • 210.216.0.0/16 (65 536 addresses (/16 prefix))
  • 211.50.0.0/16 (65 536 addresses (/16 prefix))
  • 117.52.0.0/16 (65 536 addresses (/16 prefix))
  • 210.108.0.0/16 (65 536 addresses (/16 prefix))
  • 211.60.0.0/16 (65 536 addresses (/16 prefix))
  • 211.40.0.0/16 (65 536 addresses (/16 prefix))
  • 210.124.0.0/16 (65 536 addresses (/16 prefix))
  • 124.194.0.0/16 (65 536 addresses (/16 prefix))
  • 182.162.0.0/16 (65 536 addresses (/16 prefix))
  • 211.32.0.0/16 (65 536 addresses (/16 prefix))
  • 210.120.0.0/16 (65 536 addresses (/16 prefix))
  • 164.124.0.0/16 (65 536 addresses (/16 prefix))
  • 202.31.0.0/17 (32 768 addresses (/17 prefix))
  • 210.92.128.0/17 (32 768 addresses (/17 prefix))
  • 210.96.128.0/17 (32 768 addresses (/17 prefix))
  • 203.248.128.0/17 (32 768 addresses (/17 prefix))
  • 121.254.128.0/17 (32 768 addresses (/17 prefix))
  • 110.45.128.0/17 (32 768 addresses (/17 prefix))
  • 210.107.0.0/17 (32 768 addresses (/17 prefix))
  • 211.234.0.0/17 (32 768 addresses (/17 prefix))
  • 203.233.0.0/17 (32 768 addresses (/17 prefix))
  • 211.62.128.0/17 (32 768 addresses (/17 prefix))
  • 222.231.0.0/18 (16 384 addresses (/18 prefix))
  • 101.55.0.0/18 (16 384 addresses (/18 prefix))
  • 210.98.128.0/18 (16 384 addresses (/18 prefix))
  • 211.115.64.0/18 (16 384 addresses (/18 prefix))
  • 211.45.192.0/18 (16 384 addresses (/18 prefix))
  • 210.101.128.0/18 (16 384 addresses (/18 prefix))
  • 61.111.0.0/18 (16 384 addresses (/18 prefix))
  • and 348 more

IPv6 Prefixes (57 total)

  • 2406:5900::/32
  • 2001:ed0::/32
  • 2001:270::/33
  • 2001:270:8000::/34
  • 2001:270:c000::/35
  • 2001:270:f000::/37
  • 2001:270:e000::/37
  • 2001:270:ee00::/39
  • 2001:270:f800::/39
  • 2001:270:fe00::/39
  • 2001:270:e800::/39
  • 2001:270:fc00::/40
  • 2001:270:ec00::/40
  • 2001:270:fa30::/48
  • 2001:270:fb30::/48