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Virgin Islands (U.K.)

ISO Code: VGB

2

Landing Points

4

Cables

21

Connected

182

Reachable

1.5

Redundancy

gateway

Role

Directly Connected Countries

Aruba Anguilla Antigua and Barbuda Bermuda Barbados Colombia Curaçao Dominica Dominican Republic Ecuador Guadeloupe Grenada Jamaica Saint Kitts and Nevis Saint Lucia Martinique Panama Sint Maarten Trinidad and Tobago United States Saint Vincent and the Grenadines

Cables

Caribbean-Bermuda U.S. (CBUS)1 countries East-West Cable (EWC)2 countries Eastern Caribbean Fiber System (ECFS)12 countries Pacific Caribbean Cable System (PCCS)6 countries

Landing Points

Tortola, Virgin Islands (U.K.)

3 cables

Nanny Cay, Virgin Islands (U.K.)

1 cables

182

Reachable Countries

1.5

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

Dominican Republic

Saint Kitts and Nevis

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

Antigua and Barbuda

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.

75%

Top LP Share

48%

Top Gateway Share

53%

Top Cable Share

0.63

LP HHI

0.41

Gateway HHI

0.47

Cable HHI

Top Landing Points

Tortola, Virgin Islands (U.K.)75%

Nanny Cay, Virgin Islands (U.K.)25%

Top Gateway Countries

United States48%Bermuda38%Dominican Republic13%Antigua and Barbuda8%Jamaica5%

Cable Failure Impact

Caribbean-Bermuda U.S. (CBUS) failure

Loses: Bermuda

East-West Cable (EWC) failure

Loses: Dominican Republic, Jamaica

Eastern Caribbean Fiber System (ECFS) failure

Loses: Anguilla, Antigua and Barbuda, Barbados, Dominica, Guadeloupe, Grenada, Saint Kitts and Nevis, Saint Lucia, Martinique, Sint Maarten, Trinidad and Tobago, Saint Vincent and the Grenadines

Pacific Caribbean Cable System (PCCS) failure

Loses: Aruba, Colombia, Curaçao, Ecuador, Panama, United States

Landing Point Failure Impact

Tortola, Virgin Islands (U.K.) failure

Loses 3 cables

Loses: Aruba, Anguilla, Antigua and Barbuda, Bermuda, Barbados, Colombia, Curaçao, Dominica, Ecuador, Guadeloupe, Grenada, Saint Kitts and Nevis, Saint Lucia, Martinique, Panama, Sint Maarten, Trinidad and Tobago, United States, Saint Vincent and the Grenadines

Nanny Cay, Virgin Islands (U.K.) failure

Loses 1 cable

Loses: Dominican Republic, Jamaica

Top Combinations From Bounded Candidate Search

Results come from bounded candidate search, not exhaustive N-2 enumeration. Evaluated 4 cable candidates and 2 landing-point candidates before ranking blocked-state recomputations. 6 cable-pair · 1 landing-point-pair · 8 mixed-pair evaluations

Cable pair

eastern-caribbean-fiber-system-ecfs + caribbean-bermuda-u-s-cbus

1 lost direct countries

Cable pair

eastern-caribbean-fiber-system-ecfs + east-west-cable-ewc

1 lost direct countries

Cable pair

eastern-caribbean-fiber-system-ecfs + pacific-caribbean-cable-system-pccs

1 lost direct countries

Landing point pair

tortola-virgin-islands-u-k- + nanny-cay-virgin-islands-u-k-

182 lost direct countries

Role

gateway

Virgin Islands (U.K.) acts as a gateway because its network-relative degree, reach, or gateway-share signal is elevated; the gateway-share signal is around the 39th percentile.

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

21

Degree

182

Reachable

0

Bridge Pairs

0%

Bridge Coverage

Bridge Dependencies

No strong local bridge dependencies detected.