Apparatus

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sensors Mode-S transponder

A2D25E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N281GX · operated by UMB BANK NA TRUSTEE

Hex
A2D25E
Octal
50551136
Decimal
10,670,686
Country
US
Tail
N281GX
Type
A320
No current signal · last broadcast Jul 26, 21:00 UTC
Flights observed
116
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:00 UTC

Last known position

Most recent position reported by Mode-S A2D25E.

Country allocation

The ICAO 24-bit address A2D25E 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

Callsign Airline Flights Last seen
GXA6162 - 9 2026-06-27
GXA6161 - 8 2026-06-27
GXA6163 - 6 2026-06-28
GXA6151 - 4 2026-07-17
GXA6141 Grixona 4 2026-07-18
GXA6152 - 3 2026-07-17
GXA6306 - 2 2026-06-17
GXA6182 - 2 2026-06-29
GXA6181 - 2 2026-06-29
GXA6150 - 2 2026-07-20
GXA615 - 2 2026-07-16
GXA6143 - 2 2026-07-10
GXA6142 - 2 2026-07-15
GXA614 Grixona 2 2026-04-27
GXA6108 Grixona 2 2026-07-11
GXA603 Grixona 2 2026-06-30
GXA201 Grixona 2 2026-04-19
GXA1661 Grixona 2 2026-04-26
GXA156 - 2 2026-06-28
GXA126 - 2 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 GXA159 OPF → AEX Jul 26, 18:55 UTCJul 26, 20:55 UTC2h 0m
2026-07-20 GXA6150 - Jul 20, 17:10 UTCJul 20, 20:20 UTC3h 10m
2026-07-18 GXA6141 HRL → GYY Jul 18, 16:00 UTCJul 18, 20:25 UTC4h 25m
2026-07-17 GXA6152 - Jul 17, 18:50 UTCJul 17, 20:20 UTC1h 30m
2026-07-17 GXA6151 - Jul 17, 15:10 UTCJul 17, 17:20 UTC2h 10m
2026-07-17 GXA6150 - Jul 17, 11:39 UTCJul 17, 13:35 UTC1h 55m
2026-07-16 GXA6207 SJO → AEX Jul 16, 20:00 UTCJul 16, 22:49 UTC2h 50m
2026-07-16 GXA6146 - Jul 16, 14:35 UTCJul 16, 18:34 UTC4h 0m
2026-07-16 GXA6145 - Jul 16, 11:30 UTCJul 16, 12:44 UTC1h 15m
2026-07-16 GXA118 - Jul 16, 04:50 UTCJul 16, 08:15 UTC3h 25m
2026-07-16 GXA615 - Jul 16, 00:25 UTCJul 16, 03:35 UTC3h 10m
2026-07-15 GXA115 - Jul 15, 21:35 UTCJul 15, 22:40 UTC1h 5m
2026-07-15 GXA6142 - Jul 15, 16:20 UTCJul 15, 17:20 UTC1h 0m
2026-07-15 GXA6141 - Jul 15, 13:45 UTCJul 15, 15:00 UTC1h 15m
2026-07-14 GXA6153 - Jul 14, 17:45 UTCJul 14, 19:35 UTC1h 50m
2026-07-14 GXA6152 - Jul 14, 11:45 UTCJul 14, 14:35 UTC2h 50m
2026-07-14 GXA6151 - Jul 14, 08:05 UTCJul 14, 09:20 UTC1h 15m
2026-07-13 GXA6152 - Jul 13, 17:40 UTCJul 13, 23:00 UTC5h 20m
2026-07-13 GXA6151 - Jul 13, 14:40 UTCJul 13, 15:55 UTC1h 15m
2026-07-12 GXA109 - Jul 12, 23:55 UTCJul 13, 01:01 UTC1h 5m
2026-07-12 GXA628 BOS → DAL Jul 12, 19:20 UTCJul 12, 22:45 UTC3h 25m
2026-07-12 GXA108 - Jul 12, 00:50 UTCJul 12, 04:35 UTC3h 45m
2026-07-11 GXA6108 AEX → MGA Jul 11, 15:05 UTCJul 11, 21:50 UTC6h 45m
2026-07-11 GXA6151 - Jul 11, 11:50 UTCJul 11, 12:50 UTC1h 0m
2026-07-10 GXA6143 - Jul 10, 12:25 UTCJul 10, 23:05 UTC10h 40m
2026-07-09 GXA102 - Jul 9, 21:20 UTCJul 9, 22:45 UTC1h 25m
2026-07-09 GXA601 TPA → FYV Jul 9, 17:45 UTCJul 9, 19:40 UTC1h 55m
2026-07-09 GXA101 - Jul 9, 14:10 UTCJul 9, 14:40 UTC30m
2026-07-09 GXA637 - Jul 9, 06:35 UTCJul 9, 09:15 UTC2h 40m
2026-07-09 GXA636 - Jul 9, 01:40 UTCJul 9, 05:00 UTC3h 20m
2026-07-05 GXA635 - Jul 5, 22:30 UTCJul 6, 02:00 UTC3h 30m
2026-07-05 GXA130 - Jul 5, 06:20 UTCJul 5, 09:10 UTC2h 50m
2026-07-05 GXA677 - Jul 5, 03:55 UTCJul 5, 05:10 UTC1h 15m
2026-07-03 GXA606 - Jul 3, 14:55 UTCJul 3, 15:55 UTC1h 0m
2026-07-03 GXA126 - Jul 3, 09:05 UTCJul 3, 12:05 UTC3h 0m
2026-07-01 GXA6206 - Jul 1, 15:15 UTCJul 1, 17:30 UTC2h 15m
2026-07-01 GXA148 - Jul 1, 03:15 UTCJul 1, 04:20 UTC1h 5m
2026-06-30 GXA603 MKE → BZN Jun 30, 21:25 UTCJul 1, 01:30 UTC4h 5m
2026-06-30 GXA126 ORD → MIA Jun 30, 15:25 UTCJun 30, 16:40 UTC1h 15m
2026-06-29 GXA6182 - Jun 29, 16:10 UTCJun 29, 22:00 UTC5h 50m
2026-06-29 GXA6181 - Jun 29, 13:39 UTCJun 29, 14:34 UTC55m
2026-06-28 GXA102 MIA → BDL Jun 28, 19:49 UTCJun 28, 22:39 UTC2h 50m
2026-06-28 GXA602 BDL → BZN Jun 28, 16:45 UTCJun 28, 18:40 UTC1h 55m
2026-06-28 GXA156 - Jun 28, 13:00 UTCJun 28, 14:34 UTC1h 35m
2026-06-28 GXA6163 - Jun 28, 01:04 UTCJun 28, 02:39 UTC1h 35m
2026-06-27 GXA6162 - Jun 27, 19:59 UTCJun 27, 23:34 UTC3h 35m
2026-06-27 GXA6161 - Jun 27, 16:14 UTCJun 27, 18:20 UTC2h 5m
2026-06-27 GXA105 AEX → HRL Jun 27, 13:04 UTCJun 27, 14:00 UTC55m
2026-06-27 GXA104 AUA → MIA Jun 27, 00:55 UTCJun 27, 10:50 UTC9h 55m
2026-06-26 GXA633 - Jun 26, 14:19 UTCJun 26, 16:20 UTC2h 0m

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 N281GX page for operator, model, and routing details .

Mode-S A2D25E frequently asked

What is Mode-S code A2D25E?
A2D25E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N281GX.
Where is Mode-S A2D25E registered?
Mode-S code A2D25E 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 A2D25E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2D25E, octal 50551136, decimal 10,670,686.
What flights does A2D25E operate?
Mode-S A2D25E has broadcast 20 distinct callsigns, including GXA6162, GXA6161, GXA6163, GXA6151, GXA6141.