Maritime (United States) Scanner Frequencies and Radio Frequency Reference

Maritime (United States)

Last Updated: April 6, 2022, 5:31 am

Some major ports utilize Vessel Traffic Service (VTS); this is maritime traffic control similar to air traffic control around an airport. Frequencies used for this purpose in those areas are 01A, 05A, 11, 12, 14, 63A

Several channels are "duplex" and not repeated. Those channels are represented by a "TX" (Ship Transmit/Shore Receive) or "RX" (Ship Receive/Shore Transmit) after the channel number and both must be monitored to hear the entire conversation.

Frequencies

Grouped

All

New

Show Repeater Inputs

Maritime Operations

Marine VHF 1A-88A

Channels listed here are the US recognized 25kHz spaced channels from 1A to 88A, and are the most widely used. Some channels are not available in all areas or regions and are noted as such in the description field.

As of September 2018, channels with the A suffix now have newly designated 10xx channel numbers; Channel 01A is now Channel 1001, Channel 05A is now Channel 1005 and so on.

https://www.navcen.uscg.gov/?pageName=mtvhf

Frequency	Type	Alpha Tag	Description	Mode	Tag
156.05000	BM	Marine 01A/1001	01A - Port Operations and Commercial - New Orleans / Lower Mississippi	FM	Transportation
156.25000	BM	Marine 05A/1005	05A - Port Operations - Houston / New Orleans / Seattle	FM	Transportation
156.30000	BM	Marine 06	06 - Intership Safety	FM	Transportation
156.35000	BM	Marine 07A/1007	07A - Commercial	FM	Transportation
156.40000	BM	Marine 08	08 - Commercial Intership	FM	Transportation
156.45000	BM	Marine 09	09 - Boater Calling	FM	Transportation
156.50000	BM	Marine 10	11 - Commercial	FM	Transportation
156.55000	BM	Marine 11	11 - Commerical	FM	Transportation
156.60000	BM	Marine 12	12 - Port Operations	FM	Transportation
156.65000	BM	Marine 13	13 - Intership Navigation Safety (Bridges)	FM	Transportation
156.70000	BM	Marine 14	14 - Port Operations	FM	Transportation
156.75000	M	Marine 15	15 - Environmental / Class C EPIRB	FM	Transportation
156.80000	BM	Marine 16	16 - Hailing / Calling / Distress	FM	Transportation
156.85000	BM	Marine 17	17 - State/local government maritime	FM	Transportation
156.90000	BM	Marine 18A/1018	18A - Commercial	FM	Transportation
156.95000	BM	Marine 19A/1019	19A - Commercial	FM	Transportation
157.00000	BM	Marine 20A/1020	20A - Port Operations	FM	Transportation
157.00000	M	Marine 20 TX	20TX - Port Operations	FM	Transportation
161.60000	B	Marine 20 RX	20RX - Port Operations	FM	Transportation
157.05000	BM	Marine 21A/1021	21A - Coast Guard	FM	Transportation
157.10000	BM	Marine 22A/1022	22A - Coast Guard Liaison/Maritime Safety Information Broadcasts	FM	Transportation
157.15000	BM	Marine 23A/1023	23A - Coast Guard	FM	Transportation
157.20000	M	Marine 24 TX	24TX - Marine Operator	FM	Transportation
161.80000	B	Marine 24 RX	24RX - Marine Operator	FM	Transportation
157.25000	M	Marine 25 TX	25TX - Marine Operator	FM	Transportation
161.85000	B	Marine 25 RX	25RX - Marine Operator	FM	Transportation
157.30000	M	Marine 26 TX	26TX - Marine Operator	FM	Transportation
161.90000	B	Marine 26 RX	26RX - Marine Operator	FM	Transportation
157.35000	M	Marine 27 TX	27TX - Marine Operator	FM	Transportation
161.95000	B	Marine 27 RX	27RX - Marine Operator	FM	Transportation
157.40000	M	Marine 28 TX	28TX - Marine Operator	FM	Transportation
162.00000	B	Marine 28 RX	28RX - Marine Operator	FM	Transportation
156.17500	BM	Marine 63A/1063	63A - Port Operations / Commercial - New Orleans / Lower Mississippi	FM	Transportation
156.27500	BM	Marine 65A/1065	65A - Port Operations	FM	Transportation
156.32500	BM	Marine 66A/1066	66A - Port Operations	FM	Transportation
156.37500	M	Marine 67	67 - Commercial intership (bridge-to-bridge)	FM	Transportation
156.42500	BM	Marine 68	68 - Non-Commercial	FM	Transportation
156.47500	BM	Marine 69	69 - Non-Commercial	FM	Transportation
156.52500	BM	Marine 70	70 - Digital Selective Calling (no voice)	FM	Data
156.57500	BM	Marine 71	71 - Non-Commercial	FM	Transportation
156.62500	M	Marine 72	72 - Non-Commercial (Intership only)	FM	Transportation
156.67500	BM	Marine 73	73 - Port Operations	FM	Transportation
156.72500	BM	Marine 74	74 - Port Operations	FM	Transportation
156.87500	M	Marine 77	77 - Port Operations (Intership only)	FM	Transportation
156.92500	BM	Marine 78A/1078	78A - Non-Commercial	FM	Transportation
156.97500	BM	Marine 79A/1079	79A - Commercial (Non-Commercial in Great Lakes only)	FM	Transportation
157.02500	BM	Marine 80A/1080	80A - Commercial (Non-Commercial in Great Lakes only)	FM	Transportation
157.07500	BM	Marine 81A/1081	81A - U.S. Government environmental protection	FM	Federal
157.12500	BM	Marine 82A/1082	82A - U.S. Government only	FM	Federal
157.17500	BM	Marine 83A/1083	83A - U.S. Coast Guard only	FM	Federal
157.22500	M	Marine 84 TX	84TX - Ship/shore (telephone)	FM	Other
161.82500	B	Marine 84 RX	84RX - Ship/shore (telephone)	FM	Other
157.27500	M	Marine 85 TX	85TX - Ship/shore (telephone)	FM	Other
161.87500	B	Marine 85 RX	85RX - Ship/shore (telephone)	FM	Other
157.32500	M	Marine 86 TX	86TX - Ship/shore (telephone)	FM	Other
161.92500	B	Marine 86 RX	86RX - Ship/shore (telephone)	FM	Other
157.37500	BM	Marine 87	87 - Ship/shore (telephone)	FM	Other
157.42500	M	Marine 88	88 - Commercial intership (bridge-to-bridge)	FM	Other

Marine VHF 201-287

Channels 201-287 are 12.5kHz spaced channels that are interleaved between the 01A-88A plan and are limited in operation

National Oil Spill Response

https://www.ntia.doc.gov/files/ntia/publications/compendium/0450.00-0454.00_01MAR14.pdf

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
454.00000	WPCE555	RM		Nat Oil Sipll	Portable Operations	FMN	Federal

Marine Data

AIS and other data technologies are listed here. AIS 1/2 are 25 wide and AIS 3/4 are 12.5 narrow

Frequency	Type	Alpha Tag	Description	Mode	Tag
161.97500	M	Marine-AIS 1	Automatic Identification System 1	Telm	Data
162.02500	M	Marine-AIS 2	Automatic Identification System 2	Telm	Data
157.41250	M	Marine-AIS 3	Automatic Identification System 3 - Ship	Telm	Data
162.01250	B	Marine-AIS 4	Automatic Identification System 4 - Shore	Telm	Data