Mode-S 7277A8 · Transponder Hex for P-632

Q: What is Mode-S code 7277A8?

7277A8 is an ICAO 24-bit transponder address. Assigned to P-632 .

Last known position

Most recent position reported by Mode-S 7277A8.

Callsign history 1 distinct

Callsign	Airline	Flights	Last seen
KOR151	Air Koryo	3	2026-04-27

Recent flights last 3

Date	Flight	Route	Takeoff	Landing	Duration
2026-04-27	KOR151	FNJ → PEK	Apr 27, 23:45 UTC	Apr 27, 23:55 UTC	10m
2026-04-24	KOR151	FNJ → PEK	Apr 24, 23:45 UTC	Apr 24, 23:55 UTC	10m
2026-04-17	KOR151	FNJ → PEK	Apr 17, 23:40 UTC	Apr 18, 00:00 UTC	20m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the P-632 page for operator, model, and routing details .

Mode-S 7277A8 frequently asked

What is Mode-S code 7277A8?

7277A8 is an ICAO 24-bit transponder address. Assigned to P-632.

Is 7277A8 broadcasting right now?

No active broadcast right now. Last signal was 6h ago.

Hex, octal, and decimal Mode-S codes: what's the difference?

The same 24-bit identifier expressed in different bases: hex 7277A8, octal 34473650, decimal 7,501,736.

What flights does 7277A8 operate?

Mode-S 7277A8 has broadcast 1 distinct callsign, including KOR151.