| 1 | 899 d | Cable ops | Pipeline repair works continue in the northern South China Sea and Philippines until further notice, near multiple positions. South China Sea, Northern Part and Philippines · Sulu Sea | NAVAREA XI 136/24 2024-03-18 |
| 2 | 899 d | Cable ops | Pipeline operations are underway in the Sibuyan, South China, and Sulu Seas near the Philippines until further notice; wide berth requested. Sibuyan Sea · South China Sea · Sulu Sea · Philippines · Sulu Sea | HYDROPAC 894/24 2024-03-18 |
| 3 | 675 d | Cable ops | Cable operations are in progress in the eastern North Pacific near Kiribati until further notice; a 100-meter berth is requested. Eastern North Pacific · Kiribati · North Pacific Ocean | NAVAREA XII 862/24 2024-10-28 |
| 4 | 331 d | Cable ops | Pipeline operations are in progress by five vessels in the Black Sea off Turkey until 07 Oct 26; wide berth requested. Black Sea · Turkey · Black Sea | HYDROLANT 1668/25 2025-10-07 |
| 5 | 243 d | Cable ops | Pipeline operations are in progress in the North Atlantic through December 31, 2026, by multiple vessels; wide berth is requested. North Atlantic · North Atlantic Ocean | NAVAREA IV 7/26 2026-01-02 |
| 6 | 219 d | Cable ops | Seismic survey is being conducted by vessel Ramform Sovereign towing twelve 10050-meter cables in Selat Makasar until further notice. Selat Makasar · Makassar Strait | NAVAREA XI 34/26 2026-01-27 |
| 7 | 96 d | Cable ops | Cable-laying is in progress in Bass Strait and Great Australian Bight, Australia, by the ship Dependable; a two-mile berth is requested. Bass Strait · Great Australian Bight | HYDROPAC 1585/26 2026-05-30 |
| 8 | 91 d | Cable ops | Pipeline operations by seven vessels continue in the Black Sea off Turkey from June 5 to October 7; wide berth requested. Black Sea · Turkey · Black Sea | HYDROLANT 1086/26 2026-06-04 |
| 9 | 66 d | Cable ops | Cable-laying vessel RESPONDER is conducting operations along a line from 38-19.86S 144-19.61E to 37-18.44S 153-20.94E, with 5 nautical miles either side, requesting 1.0 nautical mile clearance. Tasman Sea | AUSCOAST 231/26 2026-06-29 |
| 10 | 66 d | Cable ops | Cable operations by ship Responder are underway in Bass Strait and Tasman Sea, Australia, until further notice; a one-mile berth is requested. Bass Strait · Tasman Sea · Australia · Tasman Sea | HYDROPAC 1873/26 2026-06-29 |
| 11 | 65 d | Cable ops | Cable operations are in progress until August 31 in an area off French Guiana; one mile berth requested. North Atlantic · French Guiana · North Atlantic Ocean | NAVAREA IV 640/26 2026-06-30 |
| 12 | 63 d | Cable ops | Seismic survey by vessel Ramform Victory is in progress off Pointe Noire until further notice; wide berth requested. Pointe Noire · South Atlantic Ocean | NAVAREA II 269/26 2026-07-02 |
| 13 | 63 d | Cable ops | Pipeline 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 · North Atlantic Ocean | NAVAREA IV 649/26 2026-07-02 |
| 14 | 62 d | Cable ops | Seismic survey in progress by vessel Ramform Atlas towing 17 cables in Gullfaks Oil Field, North Sea; one mile berth ahead and abeam and 3 miles astern requested. North Sea · Norwegian Sea | NAVAREA I 133/26 2026-07-03 |
| 15 | 60 d | Cable ops | Pipeline operations by vessel Saipem Constellation continue until 31 December off Guyana; wide berth requested. North Atlantic · Guyana · North Atlantic Ocean | NAVAREA IV 658/26 2026-07-05 |
| 16 | 60 d | Cable ops | Cable 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 · North Atlantic Ocean | NAVAREA IV 659/26 2026-07-05 |
| 17 | 57 d | Cable ops | In 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 · North Atlantic Ocean | NAVAREA IV 666/26 2026-07-08 |
| 18 | 46 d | Cable ops | Cable operations by cableship IT Infinity continue in the Bering Sea off Alaska until 30 November along a trackline; wide berth requested. Bering Sea · Alaska · Bering Sea | NAVAREA XII 496/26 2026-07-19 |
| 19 | 44 d | Cable ops | Cable ship Ile de Re is laying submarine cable in the Taiwan Strait until further notice. Taiwan Strait · South China Sea | NAVAREA XI 329/26 2026-07-21 |
| 20 | 43 d | Cable ops | Cable operations are underway in the East China Sea by the cableship ILE DE RE until further notice; wide berth requested. East China Sea · China · South China Sea | HYDROPAC 2099/26 2026-07-21 |
| 21 | 37 d | Cable ops | Cable operations are underway in the South Pacific by the vessel Layla along a trackline; a five-mile berth is requested. South Pacific · South Pacific Ocean | HYDROPAC 2163/26 2026-07-28 |
| 22 | 31 d | Cable ops | Seismic survey by vessel Ramform Hyperion towing 10 cables in North Sea; wide berth requested, two attending vessels. Previous warning canceled. North Sea · North Sea | NAVAREA I 163/26 2026-08-03 |
| 23 | 29 d | Cable ops | Vessel SW BLY conducting seismic survey towing twelve 4.5 nm cables near 12-47S 127-35E, requesting 7 nm astern and 3 nm sides and ahead clearance. Timor Sea | AUSCOAST 266/26 2026-08-05 |
| 24 | 29 d | Cable ops | Four vessels conduct cable operations in Kara and Laptev Seas from August 10 to November 30, requesting a two-mile berth. Kara Sea · Laptev Sea · Russia · Laptev Sea | HYDROARC 155/26 2026-08-05 |
| 25 | 28 d | Cable ops | Seismic survey by vessel PXGEO 2 towing eight 5-mile cables in the southern Gulf of Thailand and South China Sea until 31 December 2026. Gulf of Thailand and South China Sea, Southern Part · South China Sea | NAVAREA XI 356/26 2026-08-06 |
| 26 | 25 d | Cable ops | Pipeline operations by vessel Barge Derrick Barge 30 are underway in the Persian Gulf near Qatar from August 10 to November 10, wide berth requested. Persian Gulf · Qatar · Persian Gulf | HYDROPAC 2281/26 2026-08-09 |
| 27 | 24 d | Cable ops | Submarine cable recovery works by motor vessel Aniek in northwestern North Pacific from 092200Z Aug until further notice near coordinates 45-07N 163-32E to 38-48N 147-56E. North Pacific, Northwestern Part · North Pacific Ocean | NAVAREA XI 364/26 2026-08-10 |
| 28 | 24 d | Cable ops | Cable operations by cableship Aniek are in progress until further notice along a trackline in the North Pacific near coordinates 45-07.40N 163-31.90E to 38-48.00N 147-55.50E. Wide berth requested. North Pacific · North Pacific Ocean | HYDROPAC 2282/26 2026-08-10 |
| 29 | 21 d | Cable ops | Cable operations by vessel Rebecca continue until 15 September in eastern Indian Ocean off Sri Lanka; wide berth requested. Eastern Indian Ocean · Sri Lanka · Indian Ocean | HYDROPAC 2323/26 2026-08-13 |
| 30 | 20 d | Cable ops | Underwater operations by cable ship ILE D'YEU along trackline in South Atlantic off Brazil, daily until 13 September, wide berth requested. South Atlantic · Brazil · North Atlantic Ocean | NAVAREA IV 789/26 2026-08-14 |
| 31 | 19 d | Cable ops | Seismic survey by Amazon Conqueror towing eight one-mile cables in Frigg Field, North Sea, with two-mile berth requested and Navarea I 160/26 cancelled. North Sea · Frigg Field · North Sea | NAVAREA I 171/26 2026-08-15 |
| 32 | 10 d | Cable ops | NAVAREA VII 246 of 2026 (24 aug 26) 1. south atlantic ocean - ne sector - offshore orange river mouth 2.… South Atlantic Ocean | NAVAREA 7 246/26 2026-08-24 |
| 33 | 9 d | Cable ops | Cable operations are underway by cable ship Ile de Sein along a trackline off California in the North Pacific until further notice; wide berth requested. North Pacific · California · North Pacific Ocean | NAVAREA XII 580/26 2026-08-24 |
| 34 | 3 d | Cable ops | Repair operation on submarine cable system by vessel Sophie Germain in Eastern Mediterranean Sea from 31 August 2026 until further notice, about 10 days. Eastern Mediterranean Sea | NAVAREA III 129/26 2026-08-31 |