sensors Mode-S transponder

A5823E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N454PA · BOEING 747-400 · operated by ATLAS AIR INC

Hex
A5823E
Octal
51301076
Decimal
10,846,782
Country
US
Tail
N454PA
Type
B744
No current signal · last broadcast 20h ago
Flights observed
91
Distinct callsigns
20
Country
US
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S A5823E.

Country allocation

The ICAO 24-bit address A5823E 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
GTI8193 Atlas Air 13 2026-05-19
GTI8174 Atlas Air 8 2026-05-28
GTI8173 Atlas Air 5 2026-05-24
GTI8002 Atlas Air 5 2026-04-14
CMB379 - 5 2026-04-17
GTI9868 Atlas Air 3 2026-04-17
GTI9813 Atlas Air 3 2026-04-14
GTI8644 Atlas Air 3 2026-04-24
GTI8120 Atlas Air 3 2026-05-05
GTI7481 Atlas Air 3 2026-04-22
GTI604 - 3 2026-04-13
GTI512 Atlas Air 3 2026-04-26
GTI9969 - 2 2026-05-28
GTI9175 Atlas Air 2 2026-04-28
GTI8728 Atlas Air 2 2026-05-27
GTI8506 Atlas Air 2 2026-05-07
GTI8422 Atlas Air 2 2026-05-08
GTI8365 Atlas Air 2 2026-05-21
GTI8275 Atlas Air 2 2026-05-23
GTI8274 Atlas Air 2 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 GTI8174 ANC → NLU May 28, 22:35 UTCMay 29, 11:35 UTC13h 0m
2026-05-28 GTI9969 - May 28, 13:15 UTCMay 28, 13:35 UTC20m
2026-05-28 GTI9969 - May 28, 02:00 UTCMay 28, 12:40 UTC10h 40m
2026-05-27 GTI8728 LAX → HIF May 27, 08:20 UTCMay 27, 17:10 UTC8h 50m
2026-05-27 GTI8728 LAX → HIF May 27, 02:29 UTCMay 27, 03:59 UTC1h 30m
2026-05-25 GTI8174 ANC → NLU May 25, 19:54 UTCMay 25, 20:59 UTC1h 5m
2026-05-25 GTI8174 ANC → NLU May 25, 17:35 UTCMay 25, 17:45 UTC10m
2026-05-25 GTI8174 ANC → NLU May 25, 07:50 UTCMay 25, 12:45 UTC4h 55m
2026-05-24 GTI8173 LAX → PVG May 24, 09:35 UTCMay 25, 05:25 UTC19h 50m
2026-05-24 GTI8173 LAX → PVG May 24, 08:20 UTCMay 25, 05:25 UTC21h 5m
2026-05-24 GTI8173 LAX → PVG May 24, 05:35 UTCMay 25, 05:25 UTC23h 50m
2026-05-24 GTI8173 LAX → PVG May 24, 04:05 UTCMay 24, 23:30 UTC19h 25m
2026-05-23 GTI8275 HNL → BNE May 23, 14:00 UTCMay 23, 18:45 UTC4h 45m
2026-05-22 GTI8275 HNL → BNE May 22, 17:35 UTCMay 23, 12:10 UTC18h 34m
2026-05-22 GTI8274 NLU → AUS May 22, 07:35 UTCMay 23, 06:20 UTC22h 44m
2026-05-22 GTI8274 NLU → AUS May 22, 06:50 UTCMay 23, 05:30 UTC22h 39m
2026-05-21 GTI8365 PVG → ANC May 21, 08:10 UTCMay 21, 21:40 UTC13h 30m
2026-05-20 GTI8365 PVG → ANC May 20, 16:35 UTCMay 21, 06:15 UTC13h 40m
2026-05-20 GTI8522 ORD → ICN May 20, 00:45 UTCMay 20, 14:30 UTC13h 46m
2026-05-19 GTI8193 YYZ → DFW May 19, 16:30 UTCMay 19, 21:45 UTC5h 15m
2026-05-19 GTI8193 YYZ → DFW May 19, 07:15 UTCMay 19, 14:30 UTC7h 15m
2026-05-19 GTI8193 YYZ → DFW May 19, 04:00 UTCMay 19, 04:25 UTC25m
2026-05-18 GTI8192 DFW → HKG May 18, 19:55 UTCMay 18, 20:20 UTC25m
2026-05-18 GTI9012 MIA → ORD May 18, 05:15 UTCMay 18, 17:40 UTC12h 25m
2026-05-18 GTI8537 HNL → SYD May 18, 00:10 UTCMay 18, 02:50 UTC2h 40m
2026-05-11 GTI8570 HKG → GYD May 11, 17:40 UTCMay 11, 20:25 UTC2h 45m
2026-05-09 GTI058 VCP → UIO May 9, 22:10 UTCMay 10, 11:00 UTC12h 50m
2026-05-09 GTI057 MIA → VCP May 9, 12:05 UTCMay 9, 19:14 UTC7h 10m
2026-05-08 GTI8422 ANC → MIA May 8, 22:20 UTCMay 9, 05:20 UTC7h 0m
2026-05-08 GTI8422 ANC → MIA May 8, 07:55 UTCMay 8, 19:50 UTC11h 55m
2026-05-08 - - May 8, 02:55 UTCMay 8, 03:04 UTC10m
2026-05-07 GTI9914 FFD → ICN May 7, 15:15 UTCMay 8, 01:59 UTC10h 45m
2026-05-07 GTI8506 HNL → RIV May 7, 00:55 UTCMay 7, 09:55 UTC9h 0m
2026-05-06 GTI8506 HNL → RIV May 6, 18:20 UTCMay 6, 21:10 UTC2h 50m
2026-05-05 GTI8120 HOP → HHN May 5, 14:45 UTCMay 5, 19:55 UTC5h 10m
2026-05-05 GTI8120 HOP → HHN May 5, 06:15 UTCMay 5, 13:00 UTC6h 45m
2026-05-04 GTI8120 HOP → HHN May 4, 16:55 UTCMay 5, 13:00 UTC20h 6m
2026-05-04 GTI8117 ORD → ICN May 4, 00:10 UTCMay 4, 14:55 UTC14h 45m
2026-05-03 GTI658 ANC → ORD May 3, 13:35 UTCMay 3, 18:40 UTC5h 5m
2026-05-03 GTI658 ANC → ORD May 3, 04:40 UTCMay 3, 11:45 UTC7h 5m
2026-04-28 GTI9175 MIA → ANC Apr 28, 23:05 UTCApr 29, 12:05 UTC13h 1m
2026-04-28 GTI9175 MIA → ANC Apr 28, 18:25 UTCApr 28, 20:00 UTC1h 35m
2026-04-28 GTI8174 ANC → NLU Apr 28, 06:55 UTCApr 28, 12:50 UTC5h 55m
2026-04-27 GTI8174 ANC → NLU Apr 27, 22:30 UTCApr 28, 05:25 UTC6h 55m
2026-04-27 GTI8174 ANC → NLU Apr 27, 07:35 UTCApr 28, 05:25 UTC21h 50m
2026-04-27 GTI8174 ANC → NLU Apr 27, 07:00 UTCApr 28, 05:25 UTC22h 25m
2026-04-26 GTI8173 LAX → PVG Apr 26, 20:30 UTCApr 27, 08:40 UTC12h 10m
2026-04-26 GTI512 ANC → ORD Apr 26, 13:45 UTCApr 26, 17:15 UTC3h 30m
2026-04-26 GTI512 ANC → ORD Apr 26, 04:20 UTCApr 26, 10:25 UTC6h 5m
2026-04-25 GTI512 ANC → ORD Apr 25, 14:30 UTCApr 26, 02:30 UTC12h 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 N454PA page for operator, model, and routing details .

Mode-S A5823E frequently asked

What is Mode-S code A5823E?
A5823E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N454PA.
Where is Mode-S A5823E registered?
Mode-S code A5823E 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 A5823E broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5823E, octal 51301076, decimal 10,846,782.
What flights does A5823E operate?
Mode-S A5823E has broadcast 20 distinct callsigns, including GTI8193, GTI8174, GTI8173, GTI8002, CMB379.