Submarine Cable Map

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South Korea

ISO Code: KOR

10

Landing Points

16

Cables

11

Connected

182

Reachable

1.6

Redundancy

gateway

Role

Directly Connected Countries

Brunei China Indonesia Japan Malaysia Philippines Singapore Thailand Taiwan United States Vietnam

Cables

APCN-26 countries Asia Pacific Gateway (APG)7 countries Asia United Gateway East (AUG East)7 countries E2A3 countries EAC-C2C5 countries FLAG North Asia Loop/REACH North Asia Loop3 countries I-AM Cable3 countries JAKO1 countries Jeju-Mainland 20 countries Jeju-Mainland 30 countries Jeju-Udo0 countries Korea-Japan Cable Network (KJCN)1 countries New Cross Pacific (NCP) Cable System4 countries Southeast Asia-Japan Cable 2 (SJC2)6 countries Trans-Pacific Express (TPE) Cable System4 countries Ulleung-Mainland 20 countries

Landing Points

Busan, South Korea

10 cables

Gunsan, South Korea

1 cables

Shindu-Ri, South Korea

1 cables

Goheung, South Korea

1 cables

Goseong-ri, South Korea

3 cables

Mijo-myeon, South Korea

1 cables

Udo, South Korea

1 cables

Geoje, South Korea

1 cables

Hosan-ri, South Korea

1 cables

Ulleung, South Korea

1 cables

182

Reachable Countries

1.6

Redundancy Score

182

Transit Dependencies

Low Redundancy Destinations

Exact bounded path counts are shown for selected direct and nearby destinations. Other destinations use approximate representative counts. 22 exact · 160 approximate

Christmas Island

Transit Dependencies

Score emphasizes lost reachable countries first, then lost representative paths, nearby destinations, and direct-neighbor exposure.

3 countries lost · 3 representative paths · 0 nearby

2 countries lost · 6 representative paths · 1 nearby

2 countries lost · 2 representative paths · 1 nearby

Congo, Dem. Rep.

2 countries lost · 2 representative paths · 0 nearby

1 countries lost · 5 representative paths · 1 nearby · 1 direct

1 countries lost · 5 representative paths · 1 nearby · 1 direct

1 countries lost · 5 representative paths · 1 nearby · 1 direct

1 countries lost · 5 representative paths · 1 nearby · 1 direct

1 countries lost · 5 representative paths · 1 nearby · 1 direct

1 countries lost · 5 representative paths · 1 nearby · 1 direct

Concentration

These are structural concentration measures from the country-topology graph. They do not represent traffic, latency, or capacity share.

63%

Top LP Share

41%

Top Gateway Share

82%

Top Cable Share

0.44

LP HHI

0.41

Gateway HHI

2.53

Cable HHI

Top Landing Points

Busan, South Korea63%

Goseong-ri, South Korea19%

Geoje, South Korea6%

Goheung, South Korea6%

Gunsan, South Korea6%

Top Gateway Countries

China41%United States40%Malaysia21%Japan15%Philippines10%

Cable Failure Impact

Asia United Gateway East (AUG East) failure

Loses: Brunei, Indonesia

Landing Point Failure Impact

Busan, South Korea failure

Loses 10 cables

Loses: China, Japan, Malaysia, Philippines, Singapore, Thailand, Taiwan, United States, Vietnam

Gunsan, South Korea failure

Loses 1 cable

Loses: Brunei, Indonesia, Japan, Malaysia, Philippines, Singapore, Taiwan

Geoje, South Korea failure

Loses 1 cable

Loses: China, Japan, Taiwan, United States

Top Combinations From Bounded Candidate Search

Results come from bounded candidate search, not exhaustive N-2 enumeration. Evaluated 5 cable candidates and 5 landing-point candidates before ranking blocked-state recomputations. 10 cable-pair · 10 landing-point-pair · 25 mixed-pair evaluations

Cable pair

apcn-2 + asia-pacific-gateway-apg

0 lost direct countries

Cable pair

apcn-2 + e2a

0 lost direct countries

Cable pair

apcn-2 + eac-c2c

0 lost direct countries

Landing point pair

busan-south-korea + geoje-south-korea

0 lost direct countries

Landing point pair

busan-south-korea + goheung-south-korea

0 lost direct countries

Role

gateway

South Korea acts as a gateway because its network-relative degree, reach, or gateway-share signal is elevated; the gateway-share signal is around the 34th percentile.

Role labels are network-relative classifications derived from degree, reachable-country count, bridge coverage, and gateway concentration within the country-topology graph.

11

Degree

182

Reachable

0

Bridge Pairs

0%

Bridge Coverage

Bridge Dependencies

No strong local bridge dependencies detected.