Channel #: Transmit (MHz) / Receive (MHz)

• 01A: 156.050 / 156.050
  Port Operations and Commercial. VTS in selected areas.
• 05A: 156.250 / 156.250
  Port Operations. VTS in Seattle
• 06: 156.300 / 156.300
  Inter-ship Safety
• 07A: 156.350 / 156.350
  Commercial
• 08: 156.400 / 156.400
  Commercial (Inter-ship only)
• 09: 156.450 / 156.450
  Boater Calling. Commercial and Non-Commercial.
• 10: 156.500 / 156.500
  Commercial
• 11: 156.550 / 156.550
  Commercial. VTS in selected areas.
• 12: 156.600 / 156.600
  Port Operations. VTS in selected areas.
• 13: 156.650 / 156.650
  Inter-ship Navigation Safety (Bridge-to-bridge). Ships >20 meters length maintain listening watch on this channel in U.S. waters.
• 14: 156.700 / 156.700
  Port Operations. VTS in selected areas.
• 15:  N/A  / 156.750
  Environmental (Receive only). Used by Class C EPIRBs.
• 116: 156.800 / 156.800
  International Distress, Safety and Calling. Ships required to carry radio, USCG, and most coast stations maintain listening watch on this channel.
• 17: 156.850 / 156.850
  State Control
• 18A: 156.900 / 156.900
  Commercial
• 19A: 156.950 / 156.950
  Commercial
• 20: 157.000 - 161.600
  Port Operations (duplex)
• 20A: 157.000 / 157.000
  Port Operations
• 21A: 157.050 / 157.050
  U.S. Government only
• 22A: 157.100 / 157.100
  Broadcasts announced on channel 16. Coast Guard Liaison and Maritime Safety Information Broadcasts.
• 23A: 157.150 / 157.150
  U.S. Government only
• 24: 157.200 - 161.800
  Public Correspondence (Marine Operator)
• 25: 157.250 - 161.850
  Public Correspondence (Marine Operator)
• 26: 157.300 - 161.900
  Public Correspondence (Marine Operator)
• 27: 157.350 - 161.950
  Public Correspondence (Marine Operator)
• 28: 157.400 - 162.000
  Public Correspondence (Marine Operator)
• 63A: 156.175 / 156.175
  Port Operations and Commercial. VTS in selected areas.
• 65A: 156.275 / 156.275
  Port Operations
• 66A: 156.325 / 156.325
  Port Operations
• 67: 156.375 / 156.375
  Commercial. Inter-ship only. Used for Bridge-to-bridge communications in lower Mississippi River
• 66: 156.425 / 156.425
  Non-Commercial
• 69: 156.475 / 156.475
  Non-Commercial
• 70: 156.525 / 156.525
  Digital Selective Calling (voice communications prohibited)
• 71: 156.575 / 156.575
  Non-Commercial
• 72: 156.625 / 156.625
  Non-Commercial (Inter-ship only)
• 73: 156.675 / 156.675
  - Port Operations
• 74: 156.725 / 156.725
  Port Operations
• 77 / 156.875 / 156.875
  Port Operations (Inter-ship only)
• 78A / 156.925 / 156.925
  Non-Commercial
• 79A / 156.975 / 156.975
  Commercial
• 80A / 157.025 / 157.025
  Commercial
• 81A / 157.075 / 157.075
  U.S. Government only Environmental protection operations.
• 82A / 157.125 / 157.125
  U.S. Government only
• 83A / 157.175 / 157.175
  U.S. Government only
• 84 / 157.225 - 161.825
  Public Correspondence (Marine Operator)
• 85 / 157.275 - 161.875
  Public Correspondence (Marine Operator)
• 86 / 157.325 - 161.925
  Public Correspondence (Marine Operator)
• 87 / 157.375 - 161.975
  - Public Correspondence (Marine Operator)
• 88 / 157.425 - 162.025
  - Public Correspondence in selected areas only.
• 88A / 157.425 / 157.425
  - Commercial, Internship only.