Issuers

Every warning relayed by the U.S. National Geospatial-Intelligence Agency records the authority behind it: a launch range, a rescue centre, a coast radio station, a coast guard, a national service or sometimes a single ship. These are the 240 issuers with at least 30 messages in this archive, grouped by kind.

Issuers shown with a full name have been identified by hand. For the others the kind is inferred from the recorded name alone, and the identity has not been verified.

National warning service 23 · Rescue coordination centre 71 · Scientific or monitoring agency 7 · Coast guard 28 · Other issuer 37 · Launch or test range 15 · Ice service 2 · National authority 18 · Coast radio station 7 · Naval command 13 · French maritime authority (AVURNAV) 8 · Maritime security centre 6 · Offshore operation 1 · Vessel 4

National warning service23

issuer	mostly in	messages	in force
UK coastal warnings (WZ series) WZ United Kingdom · mostly nav aids	NAVAREA V	16,018	0
AUSCOAST coastal warnings AUSCOAST Australia · mostly nav aids	NAVAREA XI	6,382	0
Brazilian Navy — NAVAREA V S series NAVAREA V S Brazil · mostly cable ops	NAVAREA V	2,042	0
Maritime New Zealand MNZ New Zealand · mostly incidents	NAVAREA XIV	2,030	0
Brazilian Navy — NAVAREA V E series NAVAREA V E Brazil · mostly cable ops	NAVAREA V	1,527	0
Brazilian Navy — NAVAREA V SAR series NAVAREA V SAR Brazil · mostly incidents	NAVAREA V	1,429	0
Japan Coast Guard Japan · mostly incidents	NAVAREA XI	1,186	33
Brazilian Navy — NAVAREA V COASTAL S series NAVAREA V COASTAL S Brazil · mostly exercises	NAVAREA V	1,091	0
Brazilian Navy — NAVAREA V COASTAL series NAVAREA V COASTAL Brazil · mostly nav aids	NAVAREA V	795	0
Brazilian Navy — NAVAREA V COASTAL E series NAVAREA V COASTAL E Brazil · mostly surveys	NAVAREA V	779	0
Port Operations Control Centre, Maritime and Port Authority of Singapore SPOCC Singapore · mostly incidents	NAVAREA XI	682	0
Brazilian Navy — NAVAREA V N series NAVAREA V N Brazil · mostly cable ops	NAVAREA V	597	0
RUSSIA COASTAL WARNING WEST mostly icebergs	—	398	0
Brazilian Navy — NAVAREA V COASTAL N series NAVAREA V COASTAL N Brazil · mostly nav aids	NAVAREA V	303	0
Middle East Navigation Aids Service MENAS Bahrain · mostly cable ops	NAVAREA IX	298	0
Panama Maritime Authority Panama · mostly incidents	NAVAREA IV	120	0
NAVAREA ONE mostly nav aids	NAVAREA IV	107	0
WEST INDIES - COASTAL mostly derelicts	NAVAREA IV	103	0
RUSSIA COASTAL WARNING EAST mostly exercises	—	98	0
Brazilian Navy — NAVAREA V I series NAVAREA V I Brazil · mostly nav aids	NAVAREA V	61	0
UK Hydrographic Office UKHO United Kingdom · mostly wrecks	NAVAREA IV	54	0
Brazilian Navy — NAVAREA V COASTAL I series NAVAREA V COASTAL I Brazil · mostly nav aids	NAVAREA V	38	0
SHOM — Service hydrographique et océanographique de la Marine SHOM France · mostly exercises	NAVAREA II	38	7

Rescue coordination centre71

issuer	mostly in	messages	in force
MRCC VIETNAM mostly incidents	NAVAREA XI	3,940	0
AusSAR — Australian Search and Rescue AUSSAR Australia · mostly incidents	NAVAREA VIII	2,887	0
Joint Rescue Coordination Centre Australia JRCC AUSTRALIA Australia · mostly incidents	NAVAREA X	2,529	20
U.S. Coast Guard rescue centre, Guam COMCOGARD SECTOR GUAM United States · mostly exercises	NAVAREA XV	2,418	0
U.S. Coast Guard rescue centre, Alameda RCC ALAMEDA United States · mostly incidents	NAVAREA XII	2,413	0
MRCC ROME mostly incidents	NAVAREA I	1,843	0
U.S. Coast Guard rescue centre, Honolulu JRCC HONOLULU United States · mostly incidents	NAVAREA XII	1,530	0
BASARNAS — National Search and Rescue Agency RCC BASARNAS Indonesia · mostly incidents	NAVAREA VII	1,213	0
U.S. Coast Guard search and rescue coordinator, Guam GUAMSARCOORD United States · mostly incidents	NAVAREA VII	1,018	0
U.S. Coast Guard rescue centre, Miami RCC MIAMI United States · mostly incidents	NAVAREA IV	872	0
U.S. Coast Guard rescue centre, Guam RCC GUAM United States · mostly incidents	NAVAREA X	778	0
U.S. Coast Guard rescue centre, Norfolk RCC NORFOLK United States · mostly incidents	NAVAREA IV	738	0
MRCC FORT DE FRANCE mostly incidents	NAVAREA IV	685	0
MRCC MUMBAI mostly incidents	—	638	0
MRCC COLOMBO mostly incidents	—	558	0
UK Maritime Rescue Coordination Centre UKMRCC United Kingdom · mostly incidents	NAVAREA III	438	0
MRCC SINGAPORE mostly incidents	—	412	0
RCC AUSTRALIA mostly incidents	NAVAREA VII	393	0
MRCC REUNION mostly incidents	—	390	1
MRCC HONG KONG mostly incidents	NAVAREA X	367	0
U.S. Coast Guard rescue centre, New Orleans RCC NEW ORLEANS United States · mostly incidents	NAVAREA IV	363	0
MRCC ETEL mostly incidents	NAVAREA II	278	0
U.S. Coast Guard rescue centre, Guam COMCOGARD FORCES MICRONESIA SECTOR GUAM United States · mostly exercises	—	238	0
MRCC GRIS NEZ mostly incidents	NAVAREA IV	234	0
U.S. Coast Guard rescue centre, Boston RCC BOSTON United States · mostly incidents	NAVAREA IV	221	0
RCC AUSTRALIA AUSSAR mostly incidents	NAVAREA IX	209	0
MRCC DAKAR mostly incidents	—	204	0
MRCC CAPE TOWN mostly incidents	—	201	0
MRCC VUNGTAU mostly incidents	—	198	0
JRCC STAVANGER mostly incidents	NAVAREA IV	177	0
JRCC HALIFAX mostly incidents	NAVAREA IV	154	0
MRCC NOUMEA mostly incidents	NAVAREA XI	151	0
U.S. Coast Guard rescue centre, San Juan RSC SAN JUAN United States · mostly incidents	NAVAREA IV	143	0
MRCC VLADIVOSTOK mostly incidents	—	134	0
MRCC PAPEETE mostly incidents	NAVAREA IV	126	0
MRCC CHENNAI mostly incidents	—	115	0
JRCC PIRAEUS mostly incidents	NAVAREA VI	108	0
MRCC RABAT mostly incidents	NAVAREA VII	106	0
JRCC LARNACA mostly incidents	—	96	0
JRCC JUNEAU mostly incidents	NAVAREA XII	93	0
RCC HONOLULU mostly incidents	NAVAREA X	90	0
MRCC MADRID mostly incidents	NAVAREA IV	86	0
MRCC LA GARDE mostly incidents	—	84	0
RCC GUAM POR mostly incidents	NAVAREA VIII	80	0
JRCC TAHITI mostly incidents	NAVAREA XII	79	0
MRCC FALMOUTH mostly incidents	—	79	0
MRCC ROME AOR-E mostly incidents	NAVAREA VII	79	0
U.S. Coast Guard search and rescue coordinator, Honolulu HONOSARCOORD United States · mostly incidents	NAVAREA XI	72	0
MRCC HAIPHONG mostly incidents	—	72	0
MRCC DELGADA mostly incidents	NAVAREA IV	71	0
MRCC PORT BLAIR mostly incidents	NAVAREA VIII	68	0
MRCC ETEL AOR-E EGC mostly incidents	NAVAREA II	65	0
RCC AUSTRALIA SSM mostly derelicts	NAVAREA X	62	0
JRCC LIBYA mostly incidents	—	60	0
MRCC ROME AOR-E EGC mostly incidents	—	59	0
JRCC TRENTON mostly incidents	NAVAREA IV	58	0
RCC HONOLULU POR mostly incidents	—	58	0
MRCC BREMEN mostly incidents	—	51	0
JRCC CURACAO mostly derelicts	NAVAREA IV	50	0
JRCC SEATTLE mostly incidents	NAVAREA XII	49	0
RCC NEW ZEALAND mostly incidents	—	49	0
JRCC PIRAEUS AOR-E mostly incidents	NAVAREA II	44	0
JRCC STAVANGER IOR EGC mostly incidents	—	38	0
RCC PIRAEUS mostly incidents	NAVAREA III	37	0
MRCC GRIS NEZ AOR-E mostly incidents	NAVAREA II	36	0
MRCC REUNION IOR EGC mostly incidents	NAVAREA XI	36	0
PAC RCC POR mostly incidents	—	36	0
JRCC PIRAEUS AOR-E EGC mostly incidents	NAVAREA II	35	0
MRCC HONG KONG SAR mostly incidents	NAVAREA XI	33	0
RCC LARNACA AOR-E mostly incidents	NAVAREA III	33	0
MRCC LAS PALMAS mostly incidents	—	32	0

Scientific or monitoring agency7

issuer	mostly in	messages	in force
U.S. Geological Survey — National Earthquake Information Center USGS NEIC United States · mostly quakes	—	13,049	1
NOAA Office of Response and Restoration NOAA OR&R United States · mostly spills	—	4,546	5
Pacific Tsunami Warning Center PTWC United States · mostly quakes	NAVAREA XII	161	0
NOAA National Data Buoy Center NDBC United States · mostly debris	NAVAREA IV	89	0
NOAA United States · mostly debris	NAVAREA XII	43	0
NOAA Space Weather Prediction Center NOAA SWPC United States · mostly nav aids	NAVAREA IV	42	0
Naval Oceanographic Office detachment NAVOCEANO DET United States · mostly surveys	NAVAREA IV	33	0

Coast guard28

issuer	mostly in	messages
U.S. Coast Guard Navigation Center COGARD NAVCEN United States · mostly nav aids	NAVAREA XII	7,174
U.S. Coast Guard Communications Command COGARD COMMUNICATIONS COMMAND United States · mostly nav aids	NAVAREA XII	1,497
COGARD CAMSLANT mostly nav aids	NAVAREA IV	389
U.S. Coast Guard District Seven CCGD SEVEN United States · mostly exercises	NAVAREA IV	371
COGARD CYBERCOM mostly nav aids	NAVAREA XII	280
COMCOGARD SECTOR ANCHORAGE mostly exercises	NAVAREA XII	204
HM Coastguard UK COAST GUARD United Kingdom · mostly incidents	—	190
COGARD CAMSPAC mostly nav aids	NAVAREA XII	184
USCG SAN JUAN mostly incidents	NAVAREA IV	112
JAPAN COAST GUARD POR mostly incidents	NAVAREA XI	108
JAPAN COAST GUARD POR EGC mostly incidents	NAVAREA XI	94
Marine Communications and Traffic Services MCTS Canada · mostly nav aids	NAVAREA IV	88
COMCOGARD SECTOR JUNEAU mostly exercises	NAVAREA XII	77
U.S. Coast Guard District Eight CCGD EIGHT United States · mostly exercises	NAVAREA IV	76
PRESCOTT MCTS mostly incidents	NAVAREA IV	71
COMCOGARD SECTOR HOUSTON mostly exercises	NAVAREA IV	64
COMCOGARD SECTOR ST PETERSBURG mostly exercises	NAVAREA IV	63
US COAST GUARD mostly incidents	NAVAREA IV	58
USCG SECTOR GUAM mostly incidents	—	58
COMCOGARD SECTOR HONOLULU mostly exercises	NAVAREA XII	48
USCG GUAM mostly incidents	NAVAREA X	45
COGARD CAMSPAC PT REYES mostly nav aids	NAVAREA XII	41
Communication Area Master Station Pacific, Point Reyes CAMSPAC PT REYES United States · mostly nav aids	NAVAREA XII	37
USCG HOMEPORT mostly storms	NAVAREA IV	36
U.S. Coast Guard District Fourteen CCGD FOURTEEN United States · mostly incidents	NAVAREA XII	32
CCGD mostly exercises	NAVAREA XII	31
COAST GUARD NEWS mostly incidents	NAVAREA IV	31
COGARD CAMSLANT CHESAPEAKE mostly nav aids	NAVAREA IV	30

Other issuer37

issuer	mostly in	messages	in force
CNW mostly exercises	NAVAREA IX	1,264	0
SFH mostly storms	NAVAREA IV	895	0
SHGA mostly missiles	NAVAREA XII	800	0
SEA SAFETY mostly derelicts	—	774	0
PVWA mostly missiles	NAVAREA XII	561	0
PVMM mostly missiles	NAVAREA XII	527	0
SFHGA mostly storms	NAVAREA IV	283	0
PTNM mostly missiles	NAVAREA XII	188	0
VLADIVOSTOK mostly exercises	NAVAREA VIII	173	0
GIHA mostly missiles	NAVAREA XII	150	0
OGIMM mostly nav aids	NAVAREA XII	135	0
GIMM mostly missiles	NAVAREA XII	124	0
PTNMM mostly missiles	NAVAREA XII	110	0
GOMA mostly missiles	NAVAREA XII	85	0
PVMF mostly missiles	NAVAREA XII	84	0
CANLANT mostly cable ops	NAVAREA IV	74	0
VLAD mostly nav aids	—	63	0
GIH mostly nav aids	NAVAREA XII	60	0
OFFSHORE GUYANA mostly surveys	NAVAREA IV	58	1
CANHYDROLANT mostly cable ops	NAVAREA IV	53	0
ILE DE BATZ mostly cable ops	NAVAREA IV	51	0
NOTSHIP A mostly nav aids	NAVAREA IV	51	0
ILE DE BREHAT mostly cable ops	NAVAREA IV	50	0
JEAN-JACQUE SAVIN	NAVAREA IV	45	0
PRN mostly nav aids	NAVAREA IV	42	0
PVWA HILL mostly missiles	NAVAREA XII	40	0
LOCATIONS QRTLY RPT mostly surveys	—	36	0
PETROPAVLOVSK mostly nav aids	—	36	0
ILE DE SEIN mostly cable ops	NAVAREA IV	35	0
IT INTREPID mostly cable ops	NAVAREA XII	35	0
ATLANTIC EXPLORER mostly cable ops	NAVAREA IV	34	0
GECO EAGLE mostly cable ops	NAVAREA IV	34	0
IT INTEGRITY mostly cable ops	NAVAREA IV	33	0
DTN mostly derelicts	NAVAREA XVII	30	0
OSPREY EXPLORER mostly cable ops	NAVAREA IV	30	0
PVWA BOILEAU mostly missiles	NAVAREA XII	30	0
THALASSA mostly surveys	NAVAREA IV	30	0

Launch or test range15

issuer	mostly in	messages	in force
Eastern Range United States · mostly missiles	NAVAREA IV	1,511	0
SEA RANGE OTC mostly exercises	NAVAREA XII	1,034	0
SpaceX United States · mostly missiles	NAVAREA XII	571	0
EASTERN RANGE OP mostly missiles	NAVAREA IV	424	0
Cape Canaveral (Air Force / Space Force Station) CCAFS United States · mostly exercises	NAVAREA IV	418	0
Western Range United States · mostly exercises	NAVAREA XII	395	0
Reagan Test Site, Kwajalein Atoll RTS SAFETY KWAJALEIN MH Marshall Islands (U.S. Army range) · mostly exercises	NAVAREA XII	327	0
Pacific Missile Range Facility PACMISRANFAC United States · mostly missiles	NAVAREA XII	239	1
NASA Wallops Flight Facility WALLOPS United States · mostly missiles	NAVAREA IV	230	0
WESTERN RANGE OP mostly exercises	NAVAREA XII	198	0
Vandenberg (Air Force / Space Force Base) VAFB United States · mostly exercises	NAVAREA XII	189	0
Naval Air Warfare Center Weapons Division NAWCWD United States · mostly exercises	NAVAREA XII	82	0
SEA LAUNCH mostly exercises	NAVAREA XII	66	0
SEA LAUNCH RANGE CONTROL mostly exercises	NAVAREA XII	42	0
Naval Air Warfare Center NAVAIRWARCEN United States · mostly exercises	NAVAREA XII	31	0

Ice service2

issuer	mostly in	messages	in force
North American Ice Service NAIS United States and Canada · mostly icebergs	NAVAREA IV	4,518	0
International Ice Patrol United States · mostly icebergs	NAVAREA IV	434	0

National authority18

issuer	mostly in	messages	in force
Turkey Turkey · mostly exercises	NAVAREA III	1,032	0
Mexico (NAVAREA IV warnings) MEXICO IV Mexico · mostly exercises	NAVAREA IV	675	9
Mexico (NAVAREA XII warnings) MEXICO XII Mexico · mostly exercises	NAVAREA XII	601	2
Colombia Colombia · mostly nav aids	NAVAREA IV	561	1
Lithuania Lithuania · mostly exercises	NAVAREA V	344	0
La Reunion La Reunion · mostly exercises	NAVAREA VIII	212	0
Trinidad And Tobago Trinidad And Tobago · mostly surveys	NAVAREA IV	188	0
Guyana Guyana · mostly surveys	NAVAREA IV	186	1
French Guiana French Guiana · mostly missiles	NAVAREA IV	184	0
Romania Romania · mostly exercises	—	124	1
Trinidad Trinidad · mostly surveys	NAVAREA IV	109	0
Suriname Suriname · mostly surveys	NAVAREA IV	92	0
Venezuela Venezuela · mostly nav aids	NAVAREA IV	84	1
Cuba Cuba · mostly nav aids	NAVAREA IV	49	0
Dominican Republic Dominican Republic · mostly nav aids	NAVAREA IV	47	2
French Polynesia French Polynesia · mostly exercises	NAVAREA IV	42	0
Ecuador Ecuador · mostly nav aids	NAVAREA XII	38	0
Greenland Greenland · mostly cable ops	NAVAREA IV	38	0

Coast radio station7

issuer	mostly in	messages
Valparaíso Playa Ancha Radio VALPARAISO PLAYA ANCHA RADIO Chile · mostly icebergs	—	2,282
HAIPHONG RADIO mostly exercises	—	490
AASIAAT RADIO mostly incidents	NAVAREA IV	300
Greek NAVTEX station, Irakleio GREEK NAVTEX IRAKLEIO Greece · mostly exercises	NAVAREA III	292
CAPE TOWN RADIO mostly incidents	NAVAREA II	168
Greek NAVTEX station, Limnos GREEK NAVTEX LIMNOS Greece · mostly exercises	—	131
MAURITIUS RADIO mostly incidents	—	41

Naval command13

issuer	mostly in	messages
MARISICILIA mostly exercises	NAVAREA III	738
French Navy, French Guiana (COMAR Guyane) COMAR GUYANE France · mostly missiles	NAVAREA IV	554
MARISARDEGNA mostly exercises	NAVAREA V	447
Fleet Area Control and Surveillance Facility San Diego FACSFAC SAN DIEGO United States · mostly exercises	NAVAREA XII	430
CTG mostly ordnance	NAVAREA IV	285
CTF mostly exercises	NAVAREA IV	238
Italian Navy maritime department, Taranto MARIDIPART TARANTO Italy · mostly exercises	NAVAREA V	231
Italian Navy maritime department, La Spezia MARIDIPART LA SPEZIA Italy · mostly exercises	NAVAREA II	191
Italian Navy maritime department, Ancona MARIDIPART ANCONA Italy · mostly ordnance	NAVAREA III	82
Commander, U.S. Seventh Fleet COMSEVENTHFLT United States · mostly ordnance	NAVAREA XI	76
Fleet Area Control and Surveillance Facility Virginia Capes FACSFAC VACAPES United States · mostly exercises	NAVAREA IV	45
Commander, U.S. Third Fleet COMTHIRDFLT United States · mostly ordnance	NAVAREA XII	41
Commander, U.S. Naval Forces Marianas COMNAVMARIANAS United States · mostly exercises	—	39

French maritime authority (AVURNAV)8

issuer	mostly in	messages	in force
AVURNAV Brest France · mostly exercises	NAVAREA IV	594	0
AVURNAV Cayenne France · mostly exercises	NAVAREA IV	423	0
AVURNAV Papeete France · mostly exercises	NAVAREA XII	302	1
AVURNAV Noumea France · mostly exercises	NAVAREA VIII	274	0
AVURNAV La Reunion France · mostly exercises	—	204	0
AVURNAV Fort De France France · mostly exercises	NAVAREA IV	148	0
AVURNAV Dakar France · mostly exercises	—	63	0
AVURNAV Fort De France AVURNAV LOCAL FORT DE FRANCE France · mostly derelicts	NAVAREA IV	38	0

Maritime security centre6

issuer	mostly in	messages
MSCHOA REQ mostly piracy	—	586
ICC International Maritime Bureau Piracy Reporting Centre IMB PIRACY REPORTING CENTER Malaysia · mostly piracy	NAVAREA IV	476
U.S. Maritime Administration advisories MARAD ADVISORY United States · mostly piracy	NAVAREA XII	207
Office of Naval Intelligence advisories ONI SPECIAL ADVISORY United States · mostly piracy	—	111
MSCHOA mostly piracy	—	34
Maritime Liaison Office advisories MARLO ADVISORY Bahrain (U.S. Navy) · mostly incidents	NAVAREA IV	30

Offshore operation1

issuer	mostly in	messages	in force
The Ocean Cleanup THE OCEAN CLEANUP SYSTEM Netherlands (non-profit) · mostly towing	NAVAREA XII	730	0

Vessel4

issuer	mostly in	messages
M/V LAYLA mostly cable ops	NAVAREA IV	176
M/V LIDA mostly cable ops	NAVAREA IV	85
M/V REBECCA mostly cable ops	NAVAREA IV	63
M/V ANIEK mostly cable ops	NAVAREA XII	37

Counts are messages recording the issuer as their authority, recounted nightly. Not for navigation.