Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

151FB7

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73655 · BOEING 737-800

Hex
151FB7
Octal
05217667
Decimal
1,384,375
Country
RU
Tail
RA-73655
Type
B738
No current signal · last broadcast 1d ago
Flights observed
119
Distinct callsigns
20
Country
RU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 151FB7.

Country allocation

The ICAO 24-bit address 151FB7 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 20 distinct

Callsign Airline Flights Last seen
AUL506 - 8 2026-07-06
AUL572 Aeroflot-Nord 7 2026-06-02
AUL505 - 7 2026-06-14
AUL251 - 7 2026-07-13
AUL545 - 5 2026-06-20
AUL501 Aeroflot-Nord 5 2026-06-11
AUL252 Aeroflot-Nord 5 2026-07-08
AUL585 Aeroflot-Nord 4 2026-07-05
AUL581 Aeroflot-Nord 4 2026-06-23
AUL541 - 4 2026-06-21
AUL597 Aeroflot-Nord 3 2026-06-22
AUL592 Aeroflot-Nord 3 2026-06-08
AUL533 Aeroflot-Nord 3 2026-06-27
AUL531 - 3 2026-06-23
AUL527 Aeroflot-Nord 3 2026-06-22
AUL217 Aeroflot-Nord 3 2026-06-17
AUL547 Aeroflot-Nord 2 2026-07-06
AUL546 Aeroflot-Nord 2 2026-06-04
AUL537 Aeroflot-Nord 2 2026-05-29
AUL507 Aeroflot-Nord 2 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AUL251 - Jul 13, 16:35 UTCJul 13, 17:15 UTC40m
2026-07-12 AUL152 LED → ARH Jul 12, 12:50 UTCJul 12, 13:10 UTC20m
2026-07-12 AUL151 ARH → LED Jul 12, 09:55 UTCJul 12, 10:05 UTC10m
2026-07-11 AUL207 SVO → MCX Jul 11, 14:10 UTCJul 11, 14:40 UTC30m
2026-07-08 AUL252 KGD → SVO Jul 8, 11:40 UTCJul 8, 12:50 UTC1h 10m
2026-07-08 AUL251 - Jul 8, 08:45 UTCJul 8, 09:30 UTC45m
2026-07-06 AUL547 LED → AER Jul 6, 15:55 UTCJul 6, 16:15 UTC20m
2026-07-06 AUL506 - Jul 6, 12:25 UTCJul 6, 13:30 UTC1h 5m
2026-07-05 AUL585 LED → KRR Jul 5, 11:25 UTCJul 5, 11:40 UTC15m
2026-07-04 AUL252 KGD → SVO Jul 4, 11:35 UTCJul 4, 12:30 UTC55m
2026-07-04 AUL251 - Jul 4, 08:50 UTCJul 4, 09:30 UTC40m
2026-07-02 AUL227 SVO → KZN Jul 2, 15:00 UTCJul 2, 15:25 UTC25m
2026-07-02 AUL201 SVO → SVO Jul 2, 07:10 UTCJul 2, 07:35 UTC25m
2026-07-01 AUL251 - Jul 1, 07:50 UTCJul 1, 10:05 UTC2h 15m
2026-06-27 AUL533 LED → KGD Jun 27, 16:59 UTCJun 27, 17:29 UTC30m
2026-06-23 AUL581 LED → KUF Jun 23, 15:44 UTCJun 23, 15:55 UTC10m
2026-06-23 AUL531 LED → LED Jun 23, 09:34 UTCJun 23, 10:04 UTC30m
2026-06-23 AUL531 - Jun 23, 07:45 UTCJun 23, 07:55 UTC10m
2026-06-22 AUL581 LED → KUF Jun 22, 17:00 UTCJun 22, 17:20 UTC20m
2026-06-22 AUL598 KZN → LED Jun 22, 15:40 UTCJun 22, 15:54 UTC15m
2026-06-22 AUL597 LED → KZN Jun 22, 11:39 UTCJun 22, 11:54 UTC15m
2026-06-22 AUL527 LED → CEK Jun 22, 00:29 UTCJun 22, 00:44 UTC15m
2026-06-21 AUL541 - Jun 21, 14:30 UTCJun 21, 14:54 UTC25m
2026-06-21 AUL507 LED → MMK Jun 21, 07:14 UTCJun 21, 11:24 UTC4h 10m
2026-06-20 AUL103 - Jun 20, 19:29 UTCJun 20, 20:29 UTC1h 0m
2026-06-20 AUL533 LED → KGD Jun 20, 16:24 UTCJun 20, 17:44 UTC1h 20m
2026-06-20 AUL545 - Jun 20, 06:10 UTCJun 20, 06:29 UTC20m
2026-06-19 AUL574 - Jun 19, 21:49 UTCJun 20, 03:59 UTC6h 10m
2026-06-19 AUL573 - Jun 19, 18:14 UTCJun 19, 18:30 UTC15m
2026-06-17 AUL571 LED → OVB Jun 17, 20:05 UTCJun 17, 20:20 UTC15m
2026-06-17 AUL147 ARH → LED Jun 17, 18:55 UTCJun 17, 19:00 UTC5m
2026-06-17 AUL217 SVO → ARH Jun 17, 15:25 UTCJun 17, 15:40 UTC15m
2026-06-17 AUL252 KGD → SVO Jun 17, 12:00 UTCJun 17, 13:35 UTC1h 35m
2026-06-17 AUL251 SVO → SVO Jun 17, 09:05 UTCJun 17, 09:55 UTC50m
2026-06-16 AUL545 - Jun 16, 06:04 UTCJun 16, 06:30 UTC25m
2026-06-15 AUL4545 - Jun 15, 00:49 UTCJun 15, 01:04 UTC15m
2026-06-14 AUL585 LED → KRR Jun 14, 13:35 UTCJun 14, 13:45 UTC10m
2026-06-14 AUL506 KGD → LED Jun 14, 09:00 UTCJun 14, 10:00 UTC1h 0m
2026-06-14 AUL505 - Jun 14, 06:25 UTCJun 14, 07:05 UTC40m
2026-06-13 AUL176 KGD → ARH Jun 13, 22:55 UTCJun 13, 23:45 UTC50m
2026-06-13 AUL217 SVO → ARH Jun 13, 17:35 UTCJun 13, 18:05 UTC30m
2026-06-13 AUL217 SVO → ARH Jun 13, 16:10 UTCJun 13, 16:45 UTC35m
2026-06-13 AUL148 LED → ARH Jun 13, 09:15 UTCJun 13, 09:35 UTC20m
2026-06-11 AUL501 SVO → SCW Jun 11, 22:55 UTCJun 11, 23:15 UTC20m
2026-06-11 AUL595 LED → GDZ Jun 11, 11:25 UTCJun 11, 12:20 UTC55m
2026-06-10 AUL527 LED → CEK Jun 10, 22:30 UTCJun 10, 22:50 UTC20m
2026-06-10 AUL528 CEK → LED Jun 10, 13:05 UTCJun 10, 13:25 UTC20m
2026-06-08 AUL501 SVO → SCW Jun 8, 22:55 UTCJun 8, 23:15 UTC20m
2026-06-08 AUL592 UFA → LED Jun 8, 04:00 UTCJun 8, 04:35 UTC35m
2026-06-07 AUL585 LED → KRR Jun 7, 13:35 UTCJun 7, 13:55 UTC20m

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-73655 page for operator, model, and routing details .

Mode-S 151FB7 frequently asked

What is Mode-S code 151FB7?
151FB7 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73655.
Where is Mode-S 151FB7 registered?
Mode-S code 151FB7 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FB7 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FB7, octal 05217667, decimal 1,384,375.
What flights does 151FB7 operate?
Mode-S 151FB7 has broadcast 20 distinct callsigns, including AUL506, AUL572, AUL505, AUL251, AUL545.