Apparatus

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sensors Mode-S transponder

ACB0B9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N917AN · BOEING 737-800 · operated by AMERICAN AIRLINES INC

Hex
ACB0B9
Octal
53130271
Decimal
11,317,433
Country
US
Tail
N917AN
Type
B738
Broadcasting now · callsign AAL1583 · 14,825 ft
Flights observed
546
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:00 UTC

Current position

ACB0B9 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ACB0B9 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
AAL2654 American Airlines 13 2026-04-16
AAL1281 - 8 2026-07-17
AAL2851 American Airlines 6 2026-07-20
AAL1942 - 6 2026-06-16
AAL3109 American Airlines 5 2026-06-14
AAL2780 - 5 2026-07-13
AAL2020 - 5 2026-07-10
AAL493 American Airlines 4 2026-06-06
AAL2623 American Airlines 4 2026-05-01
AAL2477 American Airlines 4 2026-05-21
AAL2471 American Airlines 4 2026-04-17
AAL2307 American Airlines 4 2026-07-24
AAL1614 American Airlines 4 2026-06-02
AAL1610 American Airlines 4 2026-05-26
AAL1529 American Airlines 4 2026-06-08
AAL1176 - 4 2026-07-17
AAL850 American Airlines 3 2026-05-05
AAL814 American Airlines 3 2026-06-05
AAL3223 American Airlines 3 2026-04-16
AAL3183 - 3 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL910 RDU → DCA Jul 26, 20:50 UTCJul 26, 21:00 UTC10m
2026-07-26 AAL925 PHL → LAX Jul 26, 17:05 UTCJul 26, 17:30 UTC25m
2026-07-26 AAL925 PHL → LAX Jul 26, 17:04 UTCJul 26, 19:27 UTC2h 23m
2026-07-26 AAL1152 LGA → DFW Jul 26, 12:05 UTCJul 26, 14:15 UTC2h 10m
2026-07-26 AAL1152 LGA → DFW Jul 26, 12:05 UTCJul 26, 14:50 UTC2h 45m
2026-07-25 AAL618 MIA → BOS Jul 25, 19:35 UTCJul 25, 22:30 UTC2h 55m
2026-07-25 AAL618 MIA → BOS Jul 25, 19:31 UTCJul 25, 22:30 UTC2h 59m
2026-07-25 AAL2814 BOS → AUS Jul 25, 15:50 UTCJul 25, 17:55 UTC2h 5m
2026-07-25 AAL2814 BOS → AUS Jul 25, 12:40 UTCJul 25, 14:45 UTC2h 5m
2026-07-25 AAL2342 SAT → DFW Jul 25, 10:15 UTCJul 25, 11:00 UTC45m
2026-07-25 AAL1599 ORD → BOS Jul 25, 04:30 UTCJul 25, 05:15 UTC45m
2026-07-24 AAL2307 IAH → PHL Jul 24, 23:40 UTCJul 25, 02:05 UTC2h 25m
2026-07-24 AAL2307 IAH → PHL Jul 24, 20:20 UTCJul 24, 22:35 UTC2h 15m
2026-07-24 AAL1324 DFW → SFO Jul 24, 17:15 UTCJul 24, 18:25 UTC1h 10m
2026-07-24 AAL1324 DFW → SFO Jul 24, 12:25 UTCJul 24, 13:25 UTC1h 0m
2026-07-24 AAL1324 DFW → SFO Jul 24, 12:21 UTCJul 24, 14:38 UTC2h 17m
2026-07-24 AAL1786 EWR → CLT Jul 24, 00:00 UTCJul 24, 02:10 UTC2h 10m
2026-07-23 AAL1786 EWR → CLT Jul 23, 20:40 UTCJul 23, 22:50 UTC2h 10m
2026-07-23 AAL2885 CLT → MSP Jul 23, 18:05 UTCJul 23, 19:15 UTC1h 10m
2026-07-23 AAL2885 CLT → MSP Jul 23, 17:59 UTCJul 23, 19:11 UTC1h 12m
2026-07-23 AAL2885 CLT → MSP Jul 23, 15:35 UTCJul 23, 16:45 UTC1h 10m
2026-07-23 AAL2435 SAV → DFW Jul 23, 11:25 UTCJul 23, 13:40 UTC2h 15m
2026-07-23 AAL2327 PHL → SAN Jul 23, 02:40 UTCJul 23, 04:40 UTC2h 0m
2026-07-22 AAL1376 ATL → DFW Jul 22, 23:25 UTCJul 23, 01:04 UTC1h 39m
2026-07-22 AAL1376 ATL → DFW Jul 22, 23:30 UTCJul 23, 01:10 UTC1h 40m
2026-07-22 AAL1376 DFW → ATL Jul 22, 20:10 UTCJul 22, 21:55 UTC1h 45m
2026-07-22 AAL1618 DCA → DFW Jul 22, 16:00 UTCJul 22, 18:45 UTC2h 45m
2026-07-22 AAL1299 PHL → PHX Jul 22, 12:20 UTCJul 22, 14:25 UTC2h 5m
2026-07-22 AAL3133 ORD → SLC Jul 22, 01:30 UTCJul 22, 04:25 UTC2h 55m
2026-07-21 AAL1574 PHL → CLT Jul 21, 20:35 UTCJul 21, 23:00 UTC2h 25m
2026-07-21 AAL1574 PHL → CLT Jul 21, 20:35 UTCJul 21, 22:54 UTC2h 19m
2026-07-21 AAL2588 CUN → AUS Jul 21, 16:45 UTCJul 21, 18:55 UTC2h 10m
2026-07-21 AAL2179 AUS → CUN Jul 21, 13:05 UTCJul 21, 15:20 UTC2h 15m
2026-07-21 AAL789 PHL → CHS Jul 21, 01:05 UTCJul 21, 01:40 UTC35m
2026-07-20 AAL1356 EWR → CLT Jul 20, 21:55 UTCJul 20, 23:35 UTC1h 40m
2026-07-20 AAL1356 EWR → CLT Jul 20, 21:54 UTCJul 20, 23:31 UTC1h 37m
2026-07-20 AAL1356 EWR → CLT Jul 20, 18:35 UTCJul 20, 20:20 UTC1h 45m
2026-07-20 AAL2851 EWR → CLT Jul 20, 16:10 UTCJul 20, 16:55 UTC45m
2026-07-20 AAL2851 EWR → CLT Jul 20, 14:05 UTCJul 20, 14:50 UTC45m
2026-07-20 AAL2770 ATL → DFW Jul 20, 10:12 UTCJul 20, 11:55 UTC1h 43m
2026-07-20 AAL2770 ATL → DFW Jul 20, 10:15 UTCJul 20, 12:00 UTC1h 45m
2026-07-20 AAL2749 - Jul 20, 03:30 UTCJul 20, 04:15 UTC45m
2026-07-20 AAL2749 DFW → ATL Jul 20, 03:28 UTCJul 20, 05:10 UTC1h 42m
2026-07-19 AAL2353 DFW → TPA Jul 19, 22:35 UTCJul 20, 02:00 UTC3h 25m
2026-07-19 AAL2353 DFW → TPA Jul 19, 17:55 UTCJul 19, 21:10 UTC3h 15m
2026-07-19 AAL1107 DFW → SYR Jul 19, 13:20 UTCJul 19, 15:55 UTC2h 35m
2026-07-19 AAL1104 DFW → BOI Jul 19, 03:10 UTCJul 19, 05:55 UTC2h 45m
2026-07-18 AAL1956 - Jul 18, 23:30 UTCJul 19, 01:15 UTC1h 45m
2026-07-18 AAL1956 DFW → IND Jul 18, 20:15 UTCJul 18, 22:05 UTC1h 50m
2026-07-18 AAL2152 MSP → DFW Jul 18, 15:50 UTCJul 18, 17:40 UTC1h 50m

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 N917AN page for operator, model, and routing details .

Mode-S ACB0B9 frequently asked

What is Mode-S code ACB0B9?
ACB0B9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N917AN.
Where is Mode-S ACB0B9 registered?
Mode-S code ACB0B9 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 ACB0B9 broadcasting right now?
Yes. Mode-S ACB0B9 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACB0B9, octal 53130271, decimal 11,317,433.
What flights does ACB0B9 operate?
Mode-S ACB0B9 has broadcast 20 distinct callsigns, including AAL2654, AAL1281, AAL2851, AAL1942, AAL3109.