Cable & pipeline work in the North Atlantic Ocean
Cable laying, pipeline and seismic operations.
- in force
- 13
- last 12 months
- 13
- vs previous 12 (2)
- +550%
- since 1998
- 1,584
Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.
In force now · 13
- HYDROLANT 1575/26in force2026-08-14Underwater operations by cableship Ile d'Yeu continue daily until 13 September along a trackline in the South Atlantic off Brazil; wide berth requested.South Atlantic · Brazil
- NAVAREA IV 789/26in force2026-08-14Underwater operations by cable ship ILE D'YEU along trackline in South Atlantic off Brazil, daily until 13 September, wide berth requested.South Atlantic · Brazil
- HYDROLANT 1568/26in force2026-08-13Cable operations by ship ILE D OUESSANT occur from 15 to 20 August in an area near Canary Islands; wide berth requested.North Atlantic · Canary Islands
- NAVAREA IV 778/26in force2026-08-11Cable ship Cable Vigilance is performing cable operations in the North Atlantic from August 15 to 28, 2026, requesting one mile berth.North Atlantic
- NAVAREA IV 729/26in force2026-07-26Cable operations by cableship Pierre de Fermat are in progress until 25 August between Aruba and Florida; wide berth requested.Caribbean Sea · North Atlantic
- NAVAREA IV 677/26in force2026-07-10Cable operations by cable ship Reliance are in progress until 22 August along a trackline from 21-58.68N 044-28.46W to 30-50.64N 061-00.22W, requesting a two-mile berth.
- NAVAREA IV 666/26in force2026-07-08In the North Atlantic near Trinidad and Tobago, pipeline operations by vessel Seven Pegasus continue until 29 August 22:00 UTC; 500-meter berth requested.North Atlantic
- NAVAREA IV 663/26in force2026-07-07Cable ship Ile de Molene is doing cable operations off Trinidad and Tobago from July 10 to August 15; one-mile berth requested.Atlantic Ocean · Caribbean Sea
- NAVAREA IV 659/26in force2026-07-05Cable operations by ship Ile d'Yeu from 8 July to 31 August in North Atlantic off French Guiana, one mile berth requested.North Atlantic · French Guiana
- NAVAREA IV 658/26in force2026-07-05Pipeline operations by vessel Saipem Constellation continue until 31 December off Guyana; wide berth requested.North Atlantic · Guyana
- NAVAREA IV 649/26in force2026-07-02Pipeline operations are in progress until 10:00 UTC on October 20 by vessel DLV 2000 near Trinidad and Tobago, with 500-meter berth requested.Caribbean Sea
- NAVAREA IV 640/26in force2026-06-30Cable operations are in progress until August 31 in an area off French Guiana; one mile berth requested.North Atlantic · French Guiana
- NAVAREA IV 7/26in force2026-01-02Pipeline operations are in progress in the North Atlantic through December 31, 2026, by multiple vessels; wide berth is requested.North Atlantic
Longest in force
- NAVAREA IV 7/26in force2026-01-02 · 232 dPipeline operations are in progress in the North Atlantic through December 31, 2026, by multiple vessels; wide berth is requested.North Atlantic
- NAVAREA IV 640/26in force2026-06-30 · 53 dCable operations are in progress until August 31 in an area off French Guiana; one mile berth requested.North Atlantic · French Guiana
- NAVAREA IV 649/26in force2026-07-02 · 51 dPipeline operations are in progress until 10:00 UTC on October 20 by vessel DLV 2000 near Trinidad and Tobago, with 500-meter berth requested.Caribbean Sea
- NAVAREA IV 658/26in force2026-07-05 · 48 dPipeline operations by vessel Saipem Constellation continue until 31 December off Guyana; wide berth requested.North Atlantic · Guyana
- NAVAREA IV 659/26in force2026-07-05 · 48 dCable operations by ship Ile d'Yeu from 8 July to 31 August in North Atlantic off French Guiana, one mile berth requested.North Atlantic · French Guiana
By month (all years)
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Other hazards in the North Atlantic Ocean
Archive · 1,571 cancelled
- HYDROLANT 290/122012-02-05 → 2012-02-28Cable operations in progress until further notice by cableship peter faber with submersible vicinity of…Eastern North Atlantic · Bay of Cadiz
- HYDROLANT 269/122012-02-01 → 2012-02-02Cable operations 030001Z feb until further notice by cableship peter faber along trackline joining 36-16.7N…Eastern North Atlantic · Bay of Cadiz
- HYDROLANT 191/122012-01-24 → 2012-04-03Seismic survey in progress until 02 apr by M/V geco triton towing 12 6800 meter long cables in area bound by…Eastern North Atlantic · Morocco
- HYDROLANT 183/122012-01-23 → 2012-02-02Cable operations 25 jan thru 01 feb by cableship ile de brehat along trackline joining 36-23.4N 006-50.2W,…Eastern North Atlantic · Bay of Cadiz
- HYDROLANT 140/122012-01-18 → 2012-01-28Cable operations 200200Z jan until further notice by cableship peter faber along trackline joining 28-29.1N…Eastern North Atlantic · Canary Islands
- HYDROLANT 132/122012-01-17 → 2012-01-18Cable operations 18 jan until further notice by cableship peter faber along trackline joining 28-29.1N…Eastern North Atlantic · Canary Islands
- HYDROLANT 119/122012-01-15 → 2012-01-17Cable operations 170600Z jan until further notice by cableship peter faber along trackline joining 28-29.1N…Eastern North Atlantic · Canary Islands
- HYDROLANT 94/122012-01-12 → 2012-01-14Cable operations in progress until 141900Z jan by cableship peter faber along trackline between 28-08.3N…Eastern North Atlantic · Canary Islands
- HYDROLANT 75/122012-01-09 → 2012-01-12Cable operations 100700Z to 121200Z jan by cableship peter faber along trackline between 28-08.3N 015-29.0W…Eastern North Atlantic · Canary Islands
- HYDROLANT 37/122012-01-05 → 2012-01-23Cable operations 07 thru 30 jan by cableship ile de brehat along trackline joining 35-28.3N 006-01.7W,…Eastern North Atlantic · Bay of Cadiz
- HYDROLANT 2271/112011-12-29 → 2012-01-14Cable operations in progress until further notice by cableship blue castor along trackline joining 35-52.8N…Eastern North Atlantic · Bay of Cadiz
- HYDROLANT 2259/112011-12-27 → 2012-01-02Cable operations in progress until further notice by cableship peter faber with submersible along trackline…Eastern North Atlantic · Bay of Cadiz
- HYDROLANT 2218/112011-12-21 → 2011-12-29Cable operations 22 dec until further notice by cableship blue castor along trackline joining 35-55.4N…Eastern North Atlantic · Bay of Cadiz
- NAVAREA IV 430/112011-12-15 → 2012-01-10Seismic survey in progress until 20 jan 12 by M/V ramform challenger towing ten 6000 meter long cables in…North Atlantic · Guyana
- HYDROLANT 2143/112011-12-13 → 2011-12-24Cable operations 131000Z dec until further notice by cableship peter faber along trackline joining 14-40.9N…Eastern North Atlantic · Senegal
- HYDROLANT 2139/112011-12-13 → 2011-12-17Seismic survey in progress until 16 dec by M/V discoverer towing 5.4 mile long cable in area bound by 03-08N…Brazil-north Coast
- HYDROLANT 2134/112011-12-12 → 2012-01-16Seismic survey in progress until 15 jan 12 by M/V polarcus towing eight 6000 meter long cables in area bound…Eastern North Atlantic · Morocco
- HYDROLANT 2119/112011-12-10 → 2011-12-22Cable operations in progress until 21 dec by cableship blue castor along trackline joining 36-15.87N…Eastern North Atlantic · Bay of Cadiz
- HYDROLANT 2104/112011-12-10 → 2011-12-13Seismic survey in progress until 13 dec by M/V discoverer towing 5.4 mile long cable in area bound by 01-05N…Brazil-north Coast
- HYDROLANT 2075/112011-12-07 → 2011-12-10Seismic survey in progress until 09 dec by M/V discoverer towing 5.4 mile long cable in area bound by 01-16N…Brazil-north Coast
- HYDROLANT 2059/112011-12-05 → 2011-12-10Cable operations in progress until further notice by cableship peter faber along trackline between 18-07.4N…Eastern North Atlantic · Mauritania
- HYDROLANT 2023/112011-11-29 → 2012-01-14Underwater operations in progress until further notice by cableship leon thevenin with submersible along…Eastern North Atlantic · Scotland-west Coast
- HYDROLANT 2012/112011-11-28 → 2012-02-01Seismic survey in progress until 31 jan 12 by M/V oceanic endeavour towing 12 9500 meter long cables in area…Eastern North Atlantic · Sierra Leone
- HYDROLANT 1900/112011-11-14 → 2011-11-21Cable repair operations 16 thru 23 nov by cableship ile de brehat in 14-59.1N 021-29.9WEastern North Atlantic
- NAVAREA IV 391/112011-11-12 → 2011-11-17Seismic survey in progress until 16 nov by M/V discoverer in area bound by 05-10N 049-30W, 05-17N 049-36W,…Brazil-north Coast
- HYDROLANT 1892/112011-11-12 → 2011-11-17Seismic survey in progress until 16 nov by M/V discoverer in area bound by 05-10N 049-30W, 05-17N 049-36W,…Brazil-north Coast
- HYDROLANT 1887/112011-11-12 → 2011-11-14Cable repair operations in progress until 16 nov by cableship ile de brehat in 24-08.6N 018-47.8WEastern North Atlantic
- HYDROLANT 1869/112011-11-09 → 2011-11-17Cable laying operations 120001Z to 162359Z nov by cableship ile de batz along trackline between 47-17.5N…Eastern North Atlantic
- HYDROLANT 1868/112011-11-09 → 2012-01-24Seismic survey in progress until 31 jan 12 by M/V geco triton towing 12 6000 meter long cables in area bound…Eastern North Atlantic · Morocco
- HYDROLANT 1865/112011-11-09 → 2011-11-12Cable repair operations 07 thru 16 nov by cableship ile de brehat in 24-08.6N 018-47.8WEastern North Atlantic
- NAVAREA IV 383/112011-11-08 → 2011-11-12Seismic survey in progress until 11 nov by M/V discoverer in area bound by 05-41N 050-34W, 05-50N 050-25W,…Brazil-north Coast
- HYDROLANT 1852/112011-11-08 → 2011-11-12Seismic survey in progress until 11 nov by M/V discoverer in area bound by 05-41N 050-34W, 05-50N 050-25W,…Brazil-north Coast
- HYDROLANT 1839/112011-11-06 → 2011-11-09Cable repair operations 07 thru 16 nov by cableship ile de brehat in 24-08.9N 018-47.8WEastern North Atlantic
- HYDROLANT 1825/112011-11-04 → 2011-11-06Seismic survey in progress until 05 nov by M/V discoverer in area bound by 02-51N 046-07W, 03-00N 045-55W,…Brazil-north Coast
- HYDROLANT 1823/112011-11-03 → 2011-11-21Cable operations in progress until 20 nov by cableship ile de sein along trackline joining 06-18.03N…Eastern North Atlantic · Gulf of Guinea
- NAVAREA IV 377/112011-11-02 → 2012-02-01Seismic survey 04 nov thru 31 jan by M/V vantage towing 9000 meter long cable in area bound by 09-18-17.77N…North Atlantic · Suriname
- NAVAREA IV 376/112011-10-31 → 2011-11-14Cable repair operations 030800Z nov until further notice by cableship leon thevenin along trackline joining…North Atlantic
- HYDROLANT 1799/112011-10-31 → 2011-11-15Cable repair operations 030800Z nov until further notice by cableship leon thevenin along trackline joining…North Atlantic
- HYDROLANT 1670/112011-10-10 → 2011-10-18Cable repair operations 122200Z oct until further notice by cableship leon thevenin with submersible along…Eastern North Atlantic · Canary Islands
- HYDROLANT 1665/112011-10-10 → 2011-10-26Cable operations in progress until 25 oct by cableship ile de sein along trackline joining 08-27.38N…Eastern North Atlantic · Gulf of Guinea · Sierra Leone
- HYDROLANT 1650/112011-10-07 → 2011-10-24Cable operations 081800Z oct until further notice by cableship peter faber along trackline joining 18-07.0N…Eastern North Atlantic · Mauritania
- HYDROLANT 1622/112011-10-04 → 2011-10-10Underwater operations 07 oct until further notice by cableship leon thevenin with submersible in area bound…Eastern North Atlantic · Canary Islands
- HYDROLANT 1613/112011-10-03 → 2011-10-07Underwater operations 050400Z to 070400Z oct by cableship james cook vicinity 27-16.9N 015-24.9WEastern North Atlantic
- HYDROLANT 1577/112011-09-27 → 2011-10-29Seismic survey in progress until further notice by M/V geo caribbean towing 12 five mile long cables in area…Gulf of Guinea
- HYDROLANT 1576/112011-09-27 → 2011-10-09Cable operations in progress until 08 oct by cableship ile de sein along trackline joining 09-33.29N…Eastern North Atlantic · Sierra Leone
- HYDROLANT 1548/112011-09-23 → 2011-09-26Cable laying operations 25 sep until further notice by cableship ile de batz vicinity 14-41.0N 017-28.4WEastern North Atlantic · Senegal
- HYDROLANT 1508/112011-09-18 → 2011-09-29Cable operations 191200Z sep until further notice by cableship peter faber along trackline joining 18-11.4N…Eastern North Atlantic · Mauritania
- HYDROLANT 1491/112011-09-16 → 2011-09-17Underwater operations in progress until 19 sep by cableship james cook vicinity 23-45N 024-08WEastern North Atlantic
- HYDROLANT 1467/112011-09-13 → 2011-09-15Underwater operations 142300Z to 151400Z sep by cableship james cook vicinity 24-56.4N 021-16.1WEastern North Atlantic
- HYDROLANT 1452/112011-09-11 → 2011-09-13Underwater operations in progress until further notice by cableship james cook vicinity 27-17.2N 015-25.7WEastern North Atlantic · Canary Islands
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts and your national MSI service.