COMPAC, the Commonwealth Pacific Cable System, was an undersea telephone cable system connecting

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

with

New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...

and

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

. It was completed by closing the last gap in

Honolulu Harbor Honolulu Harbor, also called ''Kulolia'' and ''Ke Awa O Kou'' and the Port of Honolulu, is the principal seaport of Honolulu, Hawaii, Honolulu and the Hawaii, State of Hawaii in the United States. From the harbor, the Honolulu County, Hawaii, City ...

Hawaii Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only sta ...

, at 6:25 a.m. B.S.T. on October 10, 1963. Public service of the cable commenced early in December 1963.

History

COMPAC was developed as a complementary system to CANTAT, the system linking Canada to the United Kingdom, which had begun operating in December 1961. COMPAC was designed to extend west towards

Commonwealth A commonwealth is a traditional English term for a political community founded for the common good. The noun "commonwealth", meaning "public welfare, general good or advantage", dates from the 15th century. Originally a phrase (the common-wealth ...

nations in the Pacific, linking

Vancouver Vancouver is a major city in Western Canada, located in the Lower Mainland region of British Columbia. As the List of cities in British Columbia, most populous city in the province, the 2021 Canadian census recorded 662,248 people in the cit ...

Auckland Auckland ( ; ) is a large metropolitan city in the North Island of New Zealand. It has an urban population of about It is located in the greater Auckland Region, the area governed by Auckland Council, which includes outlying rural areas and ...

and

Sydney Sydney is the capital city of the States and territories of Australia, state of New South Wales and the List of cities in Australia by population, most populous city in Australia. Located on Australia's east coast, the metropolis surrounds Syd ...

, via

Honolulu Honolulu ( ; ) is the List of capitals in the United States, capital and most populous city of the U.S. state of Hawaii, located in the Pacific Ocean. It is the county seat of the Consolidated city-county, consolidated City and County of Honol ...

and

Suva Suva (, ) is the Capital city, capital and the most populous city of Fiji. It is the home of the country's largest metropolitan area and serves as its major port. The city is located on the southeast coast of the island of Viti Levu, in Rew ...

Fiji Fiji, officially the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean. It lies about north-northeast of New Zealand. Fiji consists of an archipelago of more than 330 islands—of which about ...

. The Auckland – Sydney section was completed in early 1962, followed by the Auckland – Suva section in July, with the entire system completed by October 1963. The system cost a total of $100 million. It spanned 14,000 miles, from

Oban Oban ( ; meaning ''The Little Bay'') is a resort town within the Argyll and Bute council area of Scotland. Despite its small size, it is the largest town between Helensburgh and Fort William, Highland, Fort William. During the tourist seaso ...

Scotland Scotland is a Countries of the United Kingdom, country that is part of the United Kingdom. It contains nearly one-third of the United Kingdom's land area, consisting of the northern part of the island of Great Britain and more than 790 adjac ...

via CANTAT to Newfoundland, by microwave link across Canada, then cable on to Hawaii,

(

(New Zealand), and

(Australia). Three cable ships (CS ''Mercury'', CS ''Retriever'', and HMTS ''Monarch'') laid the cable. The link contains 11,000 miles of telephone cable, which, at the time, provided 80 two-way speech channels or 1,760

teleprinter A teleprinter (teletypewriter, teletype or TTY) is an electromechanical device that can be used to send and receive typed messages through various communications channels, in both point-to-point (telecommunications), point-to-point and point- ...

circuits. In addition, the cable carried telegraph traffic, leased circuits for airlines, shipping companies and other commercial transmission.

References

{{Submarine communications cables in the Pacific Ocean Submarine communications cables in the Pacific Ocean Australia–Canada relations Canada–New Zealand relations Canada–Fiji relations Australia–Fiji relations Fiji–New Zealand relations Australia–New Zealand relations 1963 establishments in British Columbia 1963 establishments in Hawaii 1963 establishments in New Zealand 1963 establishments in Australia 1963 establishments in Fiji