Atlantic Crossing 1

AC-1
Owners:
Tyco / Level 3 Communications
Landing points
Total length14,000 km
Topologyunknown
Currently lit capacity4600 Gbit/s
TechnologyFiber optics
Date of first use1999 (1999)

Atlantic Crossing 1 (AC-1) is an optical submarine telecommunications cable system linking the United States and three European countries.

It transports speech and data traffic between the U.S., the U.K., the Netherlands and Germany.[1] It is one of several transatlantic communications cables. It was operated by American company Level 3 Communications and Irish company Tyco International, until their respective mergers in 2017 and 2016 with other companies.

It has landing points in:

  1. Brookhaven Cable Station, Shirley, New York, United States
  2. Land's End Cable Station, Cornwall, England, United Kingdom
  3. Westerland Cable Station, Schleswig-Holstein, Germany
  4. KPN Telecom cable station, Beverwijk, Netherlands

Upgrades and renewal

During its lifetime, the design capacity of AC-1 has been upgraded over 100 times. As of 2025, the capacity of the southern path between Shirley and Cornwall, England has a design capacity of 5600 Gbps and operates at 4600 Gbps. The northern path between Brookhaven and Sylt, Germany has a design capacity of 4000 Gbps with 260 Gbps in use.

In 2025, the US FCC approved a 25-year renewal of the AC-1 cable landing license, extending its license to 2048.[2]

References

  1. ↑ Staff writer. "VS Wijst Knelpunten Nederland Aan". RTL Nieuws (in Dutch). Archived from the original on 2012-09-30. Retrieved 16 December 2010.
  2. ↑ Winston Qiu. "FCC Approves 25-Year Renewal of Atlantic Crossing-1 (AC-1) Submarine Cable Landing License". Submarine Networks. Retrieved 21 August 2026.
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