sensors Mode-S transponder

A74B1B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N5693A · BOEING 737-800 · operated by BANK OF UTAH TRUSTEE

Hex
A74B1B
Octal
51645433
Decimal
10,963,739
Country
US
Tail
N5693A
Type
B738
No current signal · last broadcast 1h ago
Flights observed
155
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A74B1B.

Country allocation

The ICAO 24-bit address A74B1B falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 SCX3029 MSP → CVG May 30, 04:55 UTCMay 30, 08:15 UTC3h 20m
2026-05-30 SCX3040 MSP → CVG May 30, 01:00 UTCMay 30, 01:55 UTC55m
2026-05-29 SCX3085 MCI → BWI May 29, 20:00 UTCMay 29, 22:25 UTC2h 25m
2026-05-29 SCX3094 MSP → CVG May 29, 11:00 UTCMay 29, 13:30 UTC2h 30m
2026-05-29 SCX3029 MSP → CVG May 29, 05:05 UTCMay 29, 08:25 UTC3h 20m
2026-05-28 SCX3033 MSP → SBD May 28, 22:10 UTCMay 28, 23:25 UTC1h 15m
2026-05-28 SCX3043 LAL → PIT May 28, 18:40 UTCMay 28, 20:15 UTC1h 35m
2026-05-28 SCX3013 CVG → MSY May 28, 14:00 UTCMay 28, 14:50 UTC50m
2026-05-28 SCX3013 CVG → MSY May 28, 10:20 UTCMay 28, 12:45 UTC2h 25m
2026-05-28 SCX3048 LAL → AUS May 28, 03:50 UTCMay 28, 06:05 UTC2h 15m
2026-05-28 SCX3053 AFW → LAS May 28, 00:05 UTCMay 28, 01:30 UTC1h 25m
2026-05-27 SCX3003 LAL → MSY May 27, 19:35 UTCMay 27, 21:00 UTC1h 25m
2026-05-26 SCX3007 BNA → CVG May 26, 07:59 UTCMay 26, 09:19 UTC1h 20m
2026-05-26 SCX3059 SBD → MSP May 26, 04:50 UTCMay 26, 06:04 UTC1h 15m
2026-05-25 SCX3045 CVG → MSP May 25, 23:10 UTCMay 26, 01:40 UTC2h 30m
2026-05-25 SCX3024 CVG → PDX May 25, 19:00 UTCMay 25, 21:15 UTC2h 14m
2026-05-25 SCX3004 CVG → MSY May 25, 09:25 UTCMay 25, 11:35 UTC2h 10m
2026-05-25 SCX3055 AFW → MSP May 25, 05:35 UTCMay 25, 07:50 UTC2h 15m
2026-05-24 SCX3085 MCI → BWI May 24, 19:45 UTCMay 24, 21:45 UTC2h 0m
2026-05-24 SCX3010 SFO → AFW May 24, 13:15 UTCMay 24, 16:30 UTC3h 15m
2026-05-24 SCX3058 CVG → MSP May 24, 07:50 UTCMay 24, 08:05 UTC15m
2026-05-24 SCX3058 CVG → MSP May 24, 06:35 UTCMay 24, 07:15 UTC40m
2026-05-24 SCX3040 MSP → CVG May 24, 01:20 UTCMay 24, 03:30 UTC2h 10m
2026-05-23 SCX3026 AFW → PIT May 23, 21:35 UTCMay 23, 23:35 UTC2h 0m
2026-05-23 SCX3016 MCI → CVG May 23, 13:20 UTCMay 23, 16:05 UTC2h 45m
2026-05-23 SCX3051 CVG → MCI May 23, 03:45 UTCMay 23, 06:10 UTC2h 25m
2026-05-22 SCX3041 AFW → SFO May 22, 21:05 UTCMay 23, 00:30 UTC3h 25m
2026-05-22 SCX3000 AFW → LAS May 22, 04:55 UTCMay 22, 06:20 UTC1h 25m
2026-05-21 SCX4050 MSP → CVG May 21, 09:20 UTCMay 21, 10:35 UTC1h 15m
2026-05-21 SCX3000 AFW → LAS May 21, 05:55 UTCMay 21, 07:25 UTC1h 30m
2026-05-20 SCX3047 LAL → AUS May 20, 22:50 UTCMay 21, 00:00 UTC1h 10m
2026-05-20 SCX3029 MSP → CVG May 20, 19:25 UTCMay 20, 20:50 UTC1h 25m
2026-05-20 SCX3015 LAL → CVG May 20, 09:55 UTCMay 20, 11:40 UTC1h 45m
2026-05-20 SCX3002 AFW → PHX May 20, 06:05 UTCMay 20, 08:00 UTC1h 55m
2026-05-20 SCX3050 MSP → AFW May 20, 01:20 UTCMay 20, 03:25 UTC2h 5m
2026-05-19 SCX3036 LAL → BDL May 19, 21:20 UTCMay 19, 23:20 UTC2h 0m
2026-05-19 SCX3021 BOI → CVG May 19, 17:00 UTCMay 19, 19:10 UTC2h 10m
2026-05-19 SCX3008 CVG → PDX May 19, 07:25 UTCMay 19, 09:10 UTC1h 45m
2026-05-19 SCX3057 CVG → ABQ May 19, 03:50 UTCMay 19, 05:45 UTC1h 55m
2026-05-19 SCX3044 LAL → TOL May 19, 00:10 UTCMay 19, 01:30 UTC1h 20m
2026-05-18 SCX3025 TOL → LAL May 18, 19:05 UTCMay 18, 20:35 UTC1h 30m
2026-05-17 SCX3007 BNA → CVG May 17, 07:45 UTCMay 17, 09:00 UTC1h 15m
2026-05-17 SCX3059 SBD → MSP May 17, 04:40 UTCMay 17, 05:55 UTC1h 15m
2026-05-16 SCX3034 MSP → LAL May 16, 22:50 UTCMay 17, 02:00 UTC3h 10m
2026-05-16 SCX3061 MSP → SBD May 16, 16:40 UTCMay 16, 19:45 UTC3h 5m
2026-05-16 SCX3012 LAS → AFW May 16, 11:55 UTCMay 16, 15:25 UTC3h 30m
2026-05-16 SCX3054 CVG → MSP May 16, 04:10 UTCMay 16, 07:51 UTC3h 41m
2026-05-15 SCX3045 CVG → MSP May 15, 23:00 UTCMay 16, 01:35 UTC2h 35m
2026-05-15 SCX3024 CVG → PDX May 15, 18:55 UTCMay 15, 21:10 UTC2h 15m
2026-05-15 SCX3004 CVG → MSY May 15, 09:10 UTCMay 15, 11:15 UTC2h 5m

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 N5693A page for operator, model, and routing details .

Mode-S A74B1B frequently asked

What is Mode-S code A74B1B?
A74B1B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N5693A.
Where is Mode-S A74B1B registered?
Mode-S code A74B1B is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A74B1B broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A74B1B, octal 51645433, decimal 10,963,739.
What flights does A74B1B operate?
Mode-S A74B1B has broadcast 20 distinct callsigns, including SCX3043, SCX3029, SCX3028, SCX3015, SCX3012.