Maritime Frequency List

Marine Channels (US Bandplan)

Frequency	Channel	Usage
156.0500	01	Port Operations and Commercial, VTS. Available only in New Orleans/Lower Mississippi area
156.1750	63	Port Operations and Commercial, VTS. Available only in New Orleans/Lower Mississippi area.
156.2500	05	Port Operations or VTS in the Houston, New Orleans and Seattle areas.
156.2750	65	Port Operations
156.3000	06	Intership Safety
156.3250	66	Port Operations
156.3500	07	Commercial
156.3750	67	Commercial. Used for Bridge-to-bridge communications in lower Mississippi River. Intership only.
156.4000	08	Commercial (Intership only)
156.4250	68	Non-commercial ship to ship, ship to shore
156.4500	09	Calling Channel
156.4750	69	Non-commercial ship to ship, ship to shore
156.5000	10	Commercial
156.5250	70	Digital Selective Calling (voice communications not allowed)
156.5500	11	Commercial. VTS in selected areas.
156.5750	71	Non-commercial ship to ship, ship to shore
156.6000	12	Port Operations. VTS in selected areas.
156.6250	72	Non-Commercial (Intership only)
156.6500	13	Navigation - Cape Cod Canal Navigation Intership Navigation Safety (Bridge-to-bridge). Ships >20m length maintain a listening watch on this channel in US waters.
156.6750	73	Port Operations
156.7000	14	Port Operations - Cape Cod Canal Control Port Operations. VTS in selected areas.
156.7250	74	Port Operations
156.7500	15	Environmental (Receive only). Used by Class C EPIRBs.
156.8000	16	International Calling and Distress International Distress, Safety and Calling. Ships required to carry radio, USCG, and most coast stations maintain a listening watch on this channel.
156.8500	17	State Control
156.8750	77	Port Operations (Intership only)
156.9000	18	Commercial
156.9250	78	Non-commercial ship to ship, ship to shore
156.9500	19	Commercial
156.975	79	Commercial. Non-Commercial in Great Lakes only
157.0000	20A	Port Operations Duplex (161.600 shore = Typically a Repeater)
157.0250	80	Commercial. Non-Commercial in Great Lakes only
157.0500	21	US Coast Guard/Government (Sector SE New England, CGAS Cape Cod)
157.0750	81	US Coast Guard/Government (Sector Boston)
157.1000	22A	US Coast Guard "Notice to Mariners" Broadcasts, SAR Comms
157.1250	82	US Coast Guard/Government
157.1500	23	US Coast Guard/Government (Sector Northern New England)
157.1750	83	US Coast Guard Auxiliary
157.4250	88	Commercial, Intership only.
161.6000	20A	Pilots : Repeater Output in Boston

Other Marine Frequency Info

Station	Frequency	Type	PL/DPL	Comments
Steamship Authority	151.3550		D465
Steamship Authority Shuttle	453.9000	R	110.9	Shuttles people from parking lots to ship.
US Towboats	452.1750	R	67.0	Repeats several marine frequencies and has wide area coverage.