Nav aids

NAVTEX station callao (u) 12-01.80S 077-07.80W off air 121300Z to 141300Z apr

South Pacific Ocean · HYDROPAC 1177/24

What this record establishes

Archived notice · 2024-04-14 14:00Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA XVI 50/24 111939Z APR 24.. Issued 2024-04-11 21:56Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered: South Pacific Ocean. The parsed report position is -12.030, -77.130. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the South Pacific Ocean →

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2024-04-12 13:00Z	2024-04-14 13:00Z	—	48 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

issued: 2024-04-11 21:56Z
status: Archived notice
self-cancels: 2024-04-14 14:00Z
authority: NAVAREA XVI 50/24 111939Z APR 24.
NAVAREA: NAVAREA XVI · named as the source of this relay
sea: South Pacific Ocean
position: -12.030, -77.130
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

PERU.
DNC 07.
1. NAVTEX STATION CALLAO (U) 12-01.80S 077-07.80W
   OFF AIR 121300Z TO 141300Z APR.
2. CALLAO BROADCASTS WILL CONTINUE TO TRANSMIT
   ON SAFETYNET AND SAFETYCAST.
3. CANCEL THIS MSG 141400Z APR 24.

Reading this warning

DNC (Digital Nautical Chart): A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
NAVTEX: An automated medium-frequency radio service that sends coastal warnings as text to a small printer or screen on board.
Position (degrees and minutes): How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
Inoperative / unreliable / off air: An aid or radio service is not working as charted or published.
Date-time group (DTG): A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
Inmarsat-C / SafetyNET: The satellite system that carries NAVAREA warnings to ships at sea, and the terminal number rescue centres give for reports.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · aids-to-navigation notices

84 within 180 nm since 1999 · 1 in the last 12 months · 0 listed in force now

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

138 aids-to-navigation notices listed in force · see all

Record snapshot 2026-10-01 07:27Z; source collection times vary.

Nav aids

Lights extinguished, buoys off station, RACON/NAVTEX outages. All current aids-to-navigation notices →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.