Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

151D99

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73113 · BOEING 737-800

Hex
151D99
Octal
05216631
Decimal
1,383,833
Country
RU
Tail
RA-73113
Type
B738
No current signal · last broadcast 6h ago
Flights observed
64
Distinct callsigns
20
Country
RU
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 151D99.

Country allocation

The ICAO 24-bit address 151D99 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
AFL2933 Aeroflot Russian Airlines 9 2026-06-17
AFL1751 Aeroflot Russian Airlines 9 2026-06-10
AFL1487 Aeroflot Russian Airlines 4 2026-05-29
AFL1519 Aeroflot Russian Airlines 3 2026-05-18
AFL1454 - 3 2026-06-22
AFL1444 - 3 2026-06-28
AFL2936 Aeroflot Russian Airlines 2 2026-06-12
AFL1563 - 2 2026-06-25
AFL1539 - 2 2026-06-30
AFL1518 Aeroflot Russian Airlines 2 2026-05-30
AFL1491 Aeroflot Russian Airlines 2 2026-05-14
AFL1490 Aeroflot Russian Airlines 2 2026-05-13
AFL1473 Aeroflot Russian Airlines 2 2026-05-23
AFL1835 - 1 2026-06-30
AFL1833 - 1 2026-06-26
AFL1638 Aeroflot Russian Airlines 1 2026-06-01
AFL1568 Aeroflot Russian Airlines 1 2026-06-04
AFL1538 - 1 2026-06-20
AFL1513 Aeroflot Russian Airlines 1 2026-06-01
AFL1477 Aeroflot Russian Airlines 1 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-30 AFL1539 - Jun 30, 12:25 UTCJun 30, 12:35 UTC10m
2026-06-30 AFL1835 - Jun 30, 03:40 UTCJun 30, 10:35 UTC6h 55m
2026-06-28 AFL1444 - Jun 28, 08:29 UTCJun 28, 16:29 UTC8h 0m
2026-06-27 AFL1243 SVO → SVO Jun 27, 08:39 UTCJun 27, 08:44 UTC5m
2026-06-26 AFL1833 - Jun 26, 18:15 UTCJun 27, 07:45 UTC13h 30m
2026-06-25 AFL1563 - Jun 25, 10:20 UTCJun 25, 10:30 UTC10m
2026-06-22 AFL1454 - Jun 22, 22:10 UTCJun 22, 22:44 UTC35m
2026-06-20 AFL1539 - Jun 20, 11:34 UTCJun 20, 11:49 UTC15m
2026-06-20 AFL1538 - Jun 20, 09:24 UTCJun 20, 09:39 UTC15m
2026-06-19 AFL1238 SVO → UFA Jun 19, 15:44 UTCJun 19, 16:09 UTC25m
2026-06-17 AFL069 LED → SVO Jun 17, 20:50 UTCJun 17, 21:10 UTC20m
2026-06-17 AFL2933 UFA → AER Jun 17, 01:35 UTCJun 17, 10:00 UTC8h 25m
2026-06-16 AFL2933 UFA → AER Jun 16, 01:30 UTCJun 16, 10:00 UTC8h 30m
2026-06-15 AFL2933 UFA → AER Jun 15, 02:44 UTCJun 15, 11:10 UTC8h 25m
2026-06-14 AFL2933 UFA → AER Jun 14, 10:50 UTCJun 15, 08:10 UTC21h 20m
2026-06-14 AFL2933 UFA → AER Jun 14, 08:20 UTCJun 15, 08:10 UTC23h 49m
2026-06-14 AFL2933 UFA → AER Jun 14, 03:15 UTCJun 14, 11:45 UTC8h 30m
2026-06-13 AFL2933 UFA → AER Jun 13, 01:40 UTCJun 13, 10:40 UTC8h 59m
2026-06-12 AFL2936 LED → VOG Jun 12, 12:45 UTCJun 12, 13:25 UTC40m
2026-06-12 AFL2933 UFA → AER Jun 12, 01:30 UTCJun 12, 10:15 UTC8h 45m
2026-06-11 AFL2936 LED → VOG Jun 11, 12:15 UTCJun 11, 12:35 UTC20m
2026-06-11 AFL2933 UFA → AER Jun 11, 01:30 UTCJun 11, 09:55 UTC8h 25m
2026-06-10 AFL1751 YKS → SVO Jun 10, 08:55 UTCJun 11, 06:50 UTC21h 55m
2026-06-09 AFL1751 YKS → SVO Jun 9, 23:00 UTCJun 10, 09:40 UTC10h 40m
2026-06-07 AFL1751 YKS → SVO Jun 7, 16:20 UTCJun 8, 10:25 UTC18h 5m
2026-06-07 AFL1751 YKS → SVO Jun 7, 15:55 UTCJun 8, 10:25 UTC18h 30m
2026-06-07 AFL1751 YKS → SVO Jun 7, 13:40 UTCJun 8, 10:25 UTC20h 45m
2026-06-06 AFL1477 UUD → SVO Jun 6, 18:35 UTCJun 7, 03:10 UTC8h 35m
2026-06-05 AFL1476 SVO → UUD Jun 5, 22:55 UTCJun 6, 19:19 UTC20h 25m
2026-06-04 AFL1568 SVO → TJM Jun 4, 22:55 UTCJun 4, 23:20 UTC25m
2026-06-04 AFL1383 HMA → SVO Jun 4, 03:20 UTCJun 4, 23:20 UTC20h 0m
2026-06-03 AFL1751 YKS → SVO Jun 3, 09:05 UTCJun 3, 09:45 UTC40m
2026-06-02 AFL1751 YKS → SVO Jun 2, 12:35 UTCJun 3, 09:45 UTC21h 10m
2026-06-01 AFL1638 SVO → OMS Jun 1, 23:10 UTCJun 1, 23:20 UTC10m
2026-06-01 AFL1136 SVO → AER Jun 1, 10:30 UTCJun 1, 11:00 UTC30m
2026-06-01 AFL1513 SGC → SVO Jun 1, 04:30 UTCJun 1, 05:00 UTC30m
2026-05-30 AFL1454 SVO → UUD May 30, 21:45 UTCMay 30, 22:15 UTC30m
2026-05-30 AFL1454 SVO → UUD May 30, 18:25 UTCMay 30, 18:45 UTC20m
2026-05-30 AFL1518 SVO → RGK May 30, 07:45 UTCMay 30, 12:25 UTC4h 40m
2026-05-30 AFL1518 SVO → RGK May 30, 06:40 UTCMay 30, 07:05 UTC25m
2026-05-29 AFL1487 KJA → SVO May 29, 13:45 UTCMay 29, 16:40 UTC2h 55m
2026-05-27 AFL1751 YKS → SVO May 27, 22:40 UTCMay 28, 10:15 UTC11h 35m
2026-05-27 AFL1487 KJA → SVO May 27, 17:10 UTCMay 27, 17:40 UTC30m
2026-05-27 AFL1487 KJA → SVO May 27, 10:40 UTCMay 27, 16:10 UTC5h 30m
2026-05-26 AFL1040 SVO → AER May 26, 12:00 UTCMay 26, 12:30 UTC30m
2026-05-25 AFL1563 IKT → SVO May 25, 02:00 UTCMay 25, 10:35 UTC8h 35m
2026-05-24 AFL1324 SVO → MMK May 24, 12:20 UTCMay 24, 12:40 UTC20m
2026-05-24 AFL1201 PEE → SVO May 24, 09:00 UTCMay 24, 09:35 UTC35m
2026-05-24 AFL1093 CEK → SVO May 24, 01:40 UTCMay 24, 02:25 UTC45m
2026-05-23 AFL1092 SVO → CEK May 23, 21:40 UTCMay 23, 22:00 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-73113 page for operator, model, and routing details .

Mode-S 151D99 frequently asked

What is Mode-S code 151D99?
151D99 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73113.
Where is Mode-S 151D99 registered?
Mode-S code 151D99 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151D99 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 151D99, octal 05216631, decimal 1,383,833.
What flights does 151D99 operate?
Mode-S 151D99 has broadcast 20 distinct callsigns, including AFL2933, AFL1751, AFL1487, AFL1519, AFL1454.