Submarine Cable Trivia Answer Sheet
From time to time, we like to stump submarine cable enthusiasts with some undersea cable trivia. Winners receive a free wall map, and we all learn a bit about the fiber optic cables that connect the world.
We don't have a trivia question running right now, but you can peruse previous questions (and answers) below. ⬇️
Submarine Cable Factoids
June 2025: How many kilometers is the planned Halaihai cable, which is projected to be ready for service in 2027?
Answer: 17,483 km
May 2025: Which cable lands in Umiujaq, QC, Canada?
Answer: EAUFON 1
April 2025: Name a cable that’s between 2,000 and 3,000 km in length.
Answer: Take your pick! Our winner chose the Tasman Global Access (TGA) cable.
March 2025: The ____ cable, which recently celebrated its 22nd birthday, connects the U.S., France, and the U.K. through two parallel paths.
Answer: Apollo
February 2025: Pan-American Crossing lands in ____ Beach, California.
Answer: Grover Beach
January 2025: Name a cable ready for service in 2024.
Answer: Take your pick! Our winner chose 2Africa.
December 2024: Which of the following is not a real submarine cable? A) Polar Circle Cable, B) Polar Gateway, C) Polar Express.
Answer: B) Polar Gateway (Polar Circle and Polar Express are real!)
November 2024: Name any cable ready for service in the month of November.
Answer: Take your pick! Our winner chose the Caucasus Cable System.
October 2024: Name three cables that land in Perth.
Answer: Take your pick! Australia-Singapore Cable, Oman Australia Cable, Sydney-Melbourne-Adelaide-Perth, etc.
September 2024: Which two cables land in Cat Island, Bahamas?
Answer: ARCOS, Bahamas Domestic Submarine Network (BDSNi)
August 2024: Which cable shares a name with a planet in our solar system?
Answer: Jupiter
July 2024: Which cable connects Balchik, Bulgaria to Poti, Georgia?
Answer: Caucasus Cable System
June 2024: Name a cable that's shorter than 150 kilometers.
Answer: Take your pick! How about CrossChannel Fibre? Now that's an itty-bitty cable.
May 2024: Who owns the Oman Australia Cable?
Answer: SUBCO
April 2024: Name one of the West African cables damaged on March 14, 2024.
Answer: Africa Coast to Europe (ACE), MainOne, SAT-3/WASC, West Africa Cable System
March 2024: How long is the INDIGO-West cable?
Answer: 4,600 km
February 2024: How many active cables land in Mombasa?
Answer: Six
January 2024: There's a cable on our map named for a famous research vessel. Name the ship and the man who captained it.
Answer: HMS Endeavour, Captain James Cook
Interested in Access to Our Map Data?
"Could I get access to your map data?" We get this question a lot.
Our Submarine Cable Map is famous for a reason. No other resource comes close to matching TeleGeography's accuracy in visualizing the world's major submarine cable systems and landing stations. This dataset includes cable system name, country, planning status, RFS date, cable system length, ownership, landing points, and more.
Get the Data You Need
- Annual Data License: The raw, geocoded data underlying TeleGeography's interactive maps is available via an annual license. Map data is delivered as a JSON API—which includes GeoJSON and JSON files. Read about the process and tell us about your project over here. ⬅️
- Tap Into the Research: Access to TeleGeography's Transport Networks Research Service unlocks the database behind this map—and our cable fault dashboard, which includes information on publicly-disclosed faults on subsea cables since 2017. You'll also get primary research, written analysis, and interactive tools for exploring long-haul network data and the undersea cable market.