sensors Mode-S transponder

151D70

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73072 · BOEING 757-200

Hex
151D70
Octal
05216560
Decimal
1,383,792
Country
RU
Tail
RA-73072
Type
B752
No current signal · last broadcast 16h ago
Flights observed
5
Distinct callsigns
4
Country
RU
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 151D70.

Country allocation

The ICAO 24-bit address 151D70 falls within the block assigned to Russia (RU) by ICAO Annex 10, Volume III. Every aircraft registered in Russia receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 4 distinct

Callsign Airline Flights Last seen
AZV2647 - 2 2026-04-13
AZV2676 - 1 2026-04-14
AZV2548 Azov Avia Airlines 1 2026-04-13
AZV2547 - 1 2026-04-12

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 AZV2676 - Apr 14, 06:15 UTCApr 14, 06:35 UTC20m
2026-04-13 AZV2647 - Apr 13, 20:25 UTCApr 13, 20:45 UTC20m
2026-04-13 AZV2647 - Apr 13, 11:55 UTCApr 13, 14:40 UTC2h 45m
2026-04-13 AZV2548 CXR → OVB Apr 13, 11:20 UTCApr 13, 11:55 UTC35m
2026-04-12 AZV2547 - Apr 12, 19:45 UTCApr 12, 20:10 UTC25m

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 RA-73072 page for operator, model, and routing details .

Mode-S 151D70 frequently asked

What is Mode-S code 151D70?
151D70 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73072.
Where is Mode-S 151D70 registered?
Mode-S code 151D70 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151D70 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151D70, octal 05216560, decimal 1,383,792.
What flights does 151D70 operate?
Mode-S 151D70 has broadcast 4 distinct callsigns, including AZV2647, AZV2676, AZV2548, AZV2547.