UNITED STATES

Coast Guard Sector Boston

Last verified: 10 October 2026

EMERGENCY

Call 911

Call 911. Second 24-hour line: (833) 449-0539. On the radio: MAYDAY on VHF 16 · DSC 70.

Area

Massachusetts coast from the NH border south to Plymouth (Manomet Point), Massachusetts Bay, out to 200 nm (EEZ). See it on the rescue map →

Source

uscgboating.org · authority’s own page · checked 2026-10-10
USCG Boater’s Guide to the Federal Requirements for Recreational Boats (rev. Nov 2023) — “call 911 or the U.S. Coast Guard on Channel 16”

Frequently asked

What is the phone number of Coast Guard Sector Boston?

Call 911. Second 24-hour line: (833) 449-0539.

Which waters does Coast Guard Sector Boston cover?

Massachusetts coast from the NH border south to Plymouth (Manomet Point), Massachusetts Bay, out to 200 nm (EEZ). The VesselSOS app picks the responsible centre from your GPS position.

Neighbouring rescue centres

Coast Guard Sector Southeastern New England 53 nm Coast Guard Sector Northern New England 85 nm Coast Guard Sector Long Island Sound 106 nm Coast Guard Sector New York 172 nm Coast Guard Sector Delaware Bay 236 nm MRSC Québec 267 nm

United States: all rescue numbers → Print an emergency card →

VesselSOS is not a rescue service. This page repeats the number the authority publishes; numbers change — see the change log. Are you this centre? How we publish your number.