Atlantic Crossing 1

{{more citations needed|date=October 2016}}

{{Infobox Submarine communications cable

| cable_name = AC-1

| map = AC-1-route.png

| landing_points =

{{unbulleted list

| 1. {{flagicon|US}} Shirley, New York (Brookhaven Cable Stn.)

| 2. {{flagicon|UK}} Whitesand Bay, Cornwall, England (Land's End Cable Stn.)

| 3. {{flagicon|Germany}} Westerland, Schleswig-Holstein

| 4. {{flagicon|Netherlands}} Beverwijk (KPN Telecom Cable Stn.)

}}

| owners = Tyco / Level 3 Communications

| technology = Fiber optics

| design_capacity = 40 Gbit/s

| current_capacity = 120 Gbit/s

| length = 14,000 km

| topology = unknown

| first_use_date = {{Start date|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.{{cite news |author=Staff writer |author-link=Staff writer |url=http://www.rtl.nl/(/actueel/rtlnieuws/binnenland/)/components/actueel/rtlnieuws/2010/12_december/06/binnenland/haven-rotterdam-van-belang-voor-vs.xml |title=VS Wijst Knelpunten Nederland Aan |language=nl |newspaper=RTL Nieuws |archive-url=https://web.archive.org/web/20120930072322/http://www.rtl.nl/(/actueel/rtlnieuws/binnenland/)/components/actueel/rtlnieuws/2010/12_december/06/binnenland/haven-rotterdam-van-belang-voor-vs.xml |archive-date=2012-09-30 |access-date=16 December 2010}} 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