Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A708B0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N552UW · AIRBUS A-321 · operated by UMB BANK NA TRUSTEE

Hex
A708B0
Octal
51604260
Decimal
10,946,736
Country
US
Tail
N552UW
Type
A321
Broadcasting now · callsign AAL1288 · 34,000 ft
Flights observed
359
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Current position

A708B0 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A708B0 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
AAL1552 - 8 2026-07-06
AAL2279 - 6 2026-06-23
AAL903 American Airlines 5 2026-06-05
AAL3001 - 5 2026-07-10
AAL2242 - 5 2026-07-12
AAL2100 - 5 2026-06-30
AAL3233 American Airlines 4 2026-04-27
AAL2784 - 4 2026-06-17
AAL2529 - 4 2026-06-25
AAL2251 - 4 2026-07-12
AAL2218 American Airlines 4 2026-04-29
AAL1847 - 4 2026-06-22
AAL605 American Airlines 3 2026-06-16
AAL514 American Airlines 3 2026-06-22
AAL474 - 3 2026-07-04
AAL420 - 3 2026-07-11
AAL3229 American Airlines 3 2026-06-09
AAL3195 American Airlines 3 2026-05-01
AAL3052 American Airlines 3 2026-05-20
AAL2924 American Airlines 3 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AAL1288 TPA → MCO Jul 13, 23:00 UTCJul 13, 23:20 UTC20m
2026-07-13 AAL1288 - Jul 13, 18:40 UTCJul 13, 21:40 UTC3h 0m
2026-07-13 AAL1099 YVR → DFW Jul 13, 13:10 UTCJul 13, 16:50 UTC3h 40m
2026-07-13 AAL2373 DFW → YVR Jul 13, 01:45 UTCJul 13, 05:31 UTC3h 45m
2026-07-12 AAL2242 - Jul 12, 20:45 UTCJul 12, 23:45 UTC3h 0m
2026-07-12 AAL2242 ONT → DFW Jul 12, 20:42 UTCJul 12, 23:33 UTC2h 51m
2026-07-12 AAL2242 DFW → ONT Jul 12, 15:55 UTCJul 12, 18:30 UTC2h 35m
2026-07-12 AAL1403 - Jul 12, 11:35 UTCJul 12, 14:30 UTC2h 55m
2026-07-12 AAL2251 DFW → BWI Jul 12, 01:10 UTCJul 12, 03:50 UTC2h 40m
2026-07-11 AAL420 - Jul 11, 22:20 UTCJul 11, 23:45 UTC1h 25m
2026-07-11 AAL420 DEN → DFW Jul 11, 22:16 UTCJul 11, 23:40 UTC1h 24m
2026-07-11 AAL420 DFW → DEN Jul 11, 19:30 UTCJul 11, 21:00 UTC1h 30m
2026-07-11 AAL2222 - Jul 11, 16:15 UTCJul 11, 18:15 UTC2h 0m
2026-07-11 AAL581 - Jul 11, 10:50 UTCJul 11, 13:45 UTC2h 55m
2026-07-11 AAL1576 LGA → MIA Jul 11, 02:25 UTCJul 11, 05:21 UTC2h 56m
2026-07-11 AAL1576 LGA → MIA Jul 11, 02:25 UTCJul 11, 05:20 UTC2h 55m
2026-07-10 AAL2945 - Jul 10, 20:10 UTCJul 10, 22:40 UTC2h 30m
2026-07-10 AAL3001 - Jul 10, 18:05 UTCJul 10, 18:40 UTC35m
2026-07-10 AAL3001 - Jul 10, 16:20 UTCJul 10, 16:35 UTC15m
2026-07-10 AAL3001 SJU → MIA Jul 10, 16:18 UTCJul 10, 18:32 UTC2h 14m
2026-07-10 AAL3001 - Jul 10, 14:50 UTCJul 10, 15:00 UTC10m
2026-07-10 AAL3001 - Jul 10, 12:50 UTCJul 10, 13:10 UTC20m
2026-07-09 AAL2206 - Jul 9, 23:45 UTCJul 10, 02:10 UTC2h 25m
2026-07-09 AAL1849 - Jul 9, 19:05 UTCJul 9, 22:00 UTC2h 55m
2026-07-09 AAL1849 SFO → DFW Jul 9, 19:03 UTCJul 9, 21:53 UTC2h 50m
2026-07-09 AAL1849 DFW → SFO Jul 9, 14:20 UTCJul 9, 17:25 UTC3h 5m
2026-07-09 AAL3180 - Jul 9, 10:00 UTCJul 9, 12:10 UTC2h 10m
2026-07-09 AAL3180 CLT → DFW Jul 9, 09:55 UTCJul 9, 12:03 UTC2h 8m
2026-07-09 AAL2976 ORD → CLT Jul 9, 03:00 UTCJul 9, 04:23 UTC1h 23m
2026-07-09 AAL2976 - Jul 9, 03:00 UTCJul 9, 04:25 UTC1h 25m
2026-07-08 AAL2636 - Jul 8, 21:30 UTCJul 9, 00:10 UTC2h 40m
2026-07-08 AAL3240 DFW → SJD Jul 8, 16:53 UTCJul 8, 18:59 UTC2h 6m
2026-07-08 AAL3240 - Jul 8, 16:55 UTCJul 8, 17:50 UTC55m
2026-07-08 AAL1018 PHX → DFW Jul 8, 13:20 UTCJul 8, 15:15 UTC1h 55m
2026-07-08 AAL1018 PHX → DFW Jul 8, 13:18 UTCJul 8, 15:11 UTC1h 53m
2026-07-07 AAL1073 - Jul 7, 22:45 UTCJul 8, 02:30 UTC3h 45m
2026-07-07 AAL863 MBJ → CLT Jul 7, 17:27 UTCJul 7, 20:02 UTC2h 35m
2026-07-07 AAL863 - Jul 7, 13:35 UTCJul 7, 20:00 UTC6h 25m
2026-07-07 AAL3182 - Jul 7, 10:10 UTCJul 7, 11:45 UTC1h 35m
2026-07-07 AAL3182 BDL → CLT Jul 7, 10:08 UTCJul 7, 11:41 UTC1h 33m
2026-07-07 AAL2763 - Jul 7, 01:40 UTCJul 7, 03:45 UTC2h 5m
2026-07-06 AAL2676 - Jul 6, 13:05 UTCJul 6, 22:45 UTC9h 40m
2026-07-06 AAL1834 - Jul 6, 10:30 UTCJul 6, 11:25 UTC55m
2026-07-06 AAL1834 JAX → CLT Jul 6, 10:29 UTCJul 6, 11:25 UTC56m
2026-07-06 AAL2713 - Jul 6, 03:55 UTCJul 6, 04:45 UTC50m
2026-07-06 AAL1552 - Jul 6, 00:45 UTCJul 6, 02:25 UTC1h 40m
2026-07-05 AAL1552 - Jul 5, 21:10 UTCJul 5, 22:45 UTC1h 35m
2026-07-05 AAL2074 - Jul 5, 17:35 UTCJul 5, 18:50 UTC1h 15m
2026-07-05 AAL2074 MCO → CLT Jul 5, 17:31 UTCJul 5, 18:50 UTC1h 19m
2026-07-05 AAL2074 - Jul 5, 15:10 UTCJul 5, 16:25 UTC1h 15m

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 N552UW page for operator, model, and routing details .

Mode-S A708B0 frequently asked

What is Mode-S code A708B0?
A708B0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N552UW.
Where is Mode-S A708B0 registered?
Mode-S code A708B0 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 A708B0 broadcasting right now?
Yes. Mode-S A708B0 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A708B0, octal 51604260, decimal 10,946,736.
What flights does A708B0 operate?
Mode-S A708B0 has broadcast 20 distinct callsigns, including AAL1552, AAL2279, AAL903, AAL3001, AAL2242.