Coast guard · United States

U.S. Coast Guard Navigation Center

Recorded as: COGARD NAVCEN

The Coast Guard's Navigation Center in Alexandria, Virginia: GPS status, the former differential GPS service and broadcast notices to mariners.

Coast guards broadcast maritime safety information and coordinate rescue in their waters. Warnings under a coast guard's name cover distress cases, aids to navigation, security zones and operations it is running or supporting.

What the archive holds

7,174 messages in this archive record COGARD NAVCEN as their authority, issued from 1999-05-14 to 2023-10-02. None of them is in force in the latest lists we collected.

Nav aids accounts for 4,665 of 7,174 recorded messages (65%), the largest warning type group in this selection.

Attributed to NAVAREAs, they fall mostly in NAVAREA XII (2,648), NAVAREA IV (2,036) and NAVAREA II (4).

Located messages lie in 6 sea areas, most often Gulf of Mexico, North Pacific Ocean and Gulf of Alaska.

The largest yearly count is 2009, with 652 messages.

They reached this archive through NAVAREA XII (2,648), NAVAREA IV (2,036), HYDROPAC (1,274) and HYDROLANT (1,061).

Messages by year of issue

'99
'00
'01
'02
'03
'04
'05
'06
'07
'08
'09
'10
'11
'12
'13
'14
'15
'16
'17
'18
'19
'20
'21
'22
'23

By month of issue, all years

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Warning types

Where

NAVAREA XII 2,648 · NAVAREA IV 2,036 · NAVAREA II 4 · NAVAREA V 3 · NAVAREA VIII 2 · NAVAREA VI 1 · NAVAREA XV 1 · NAVAREA XVI 1 · NAVAREA XX 1

Most recently issued

  1. NAVAREA IV 1136/23 · Exercises · North Atlantic Ocean2023-10-02
    Florida 1. hazardous operations 020001Z to 082359Z oct in areas bound by: a. 30-45.00N 080-30.00W, 30-45.00N…
  2. NAVAREA IV 208/23 · Missiles · North Atlantic Ocean2023-02-25
    Hazardous operations, rocket launching 271837Z to 280037Z feb, alternate 281812Z to 010011Z, 011837Z to…
  3. NAVAREA IV 47/23 · Missiles · North Atlantic Ocean2023-01-12
    Florida 1. hazardous operations, rocket launching 142255Z to 150020Z jan, alternate 152256Z to 160020Z,…
  4. NAVAREA IV 988/20 · Nav aids · North Atlantic Ocean2020-10-14
    GPS unreliable 19 thru 23 oct in area within 49 miles of 39-07-38N 075-28-05W
  5. NAVAREA IV 955/20 · Nav aids · North Atlantic Ocean2020-10-06
    GPS unreliable 11 oct thru 16 nov in area within 69 miles of 34-38-55N 078-17-54W
  6. HYDROPAC 3655/17 · Debris · North Pacific Ocean2017-10-26
    Noaa buoy KEO-015, fl (5) y 20 sec, adrift in 32-17.55N 143-59.86E at 261205Z oct
  7. NAVAREA XII 451/17 · Nav aids · The Coastal Waters of Southeast Alaska and British Columbia2017-10-12
    GPS unreliable 16 oct thru 18 nov in area within 96 miles of 47-43.8N 122-43.8W
  8. NAVAREA IV 711/17 · Nav aids · Gulf of Mexico2017-08-23
    GPS unreliable 28 aug thru 29 sep in area within 202 miles of 30-32.8N 086-39.1W

Earliest in the archive

  1. NAVAREA IV 138/99 · Nav aids1999-05-14
    Prn 23 unusable 171630Z to 180430Z may

Other coast guards in NAVAREA XII

Counts are messages recording this issuer as their authority, recounted 2026-09-24; see coverage for what is collected. Not for navigation.