Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A0B846

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N14546 · operated by UNITED AIRLINES INC

Hex
A0B846
Octal
50134106
Decimal
10,532,934
Country
US
Tail
N14546
No current signal · last broadcast 1h ago
Flights observed
370
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A0B846.

Country allocation

The ICAO 24-bit address A0B846 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
UAL706 United Airlines 6 2026-06-09
UAL526 - 6 2026-06-21
UAL2329 United Airlines 6 2026-06-12
UAL2088 United Airlines 6 2026-05-24
UAL374 - 5 2026-06-20
UAL286 United Airlines 5 2026-05-09
UAL1996 United Airlines 5 2026-05-24
UAL1382 - 5 2026-06-19
UAL777 - 4 2026-07-03
UAL531 - 4 2026-07-10
UAL530 United Airlines 4 2026-05-25
UAL495 - 4 2026-07-05
UAL2758 - 4 2026-06-29
UAL2683 - 4 2026-06-22
UAL250 United Airlines 4 2026-05-13
UAL2008 - 4 2026-07-12
UAL1686 United Airlines 4 2026-05-08
UAL1568 United Airlines 4 2026-07-02
UAL1126 United Airlines 4 2026-05-09
UAL767 - 3 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 UAL1363 - Jul 14, 18:25 UTCJul 14, 21:30 UTC3h 5m
2026-07-14 UAL455 - Jul 14, 15:25 UTCJul 14, 16:30 UTC1h 5m
2026-07-14 UAL1285 - Jul 14, 12:50 UTCJul 14, 13:55 UTC1h 5m
2026-07-14 UAL1285 ORD → PIT Jul 14, 12:48 UTCJul 14, 13:53 UTC1h 5m
2026-07-14 UAL2085 DEN → ORD Jul 14, 02:05 UTCJul 14, 04:05 UTC2h 0m
2026-07-13 UAL1354 RSW → DEN Jul 13, 20:00 UTCJul 13, 23:35 UTC3h 35m
2026-07-13 UAL1102 - Jul 13, 16:15 UTCJul 13, 18:40 UTC2h 25m
2026-07-13 UAL2800 - Jul 13, 11:40 UTCJul 13, 13:20 UTC1h 40m
2026-07-13 UAL1745 DEN → EWR Jul 13, 06:15 UTCJul 13, 09:30 UTC3h 15m
2026-07-13 UAL767 - Jul 13, 01:45 UTCJul 13, 03:30 UTC1h 45m
2026-07-13 UAL767 ORD → DEN Jul 13, 01:58 UTCJul 13, 03:38 UTC1h 40m
2026-07-12 UAL2071 MCO → ORD Jul 12, 21:25 UTCJul 13, 00:10 UTC2h 45m
2026-07-12 UAL2008 - Jul 12, 19:25 UTCJul 12, 19:40 UTC15m
2026-07-12 UAL2008 - Jul 12, 16:25 UTCJul 12, 19:40 UTC3h 15m
2026-07-12 UAL2008 ORD → MCO Jul 12, 16:29 UTCJul 12, 19:09 UTC2h 40m
2026-07-12 UAL1377 DEN → ORD Jul 12, 12:10 UTCJul 12, 14:05 UTC1h 55m
2026-07-11 UAL2845 - Jul 11, 19:55 UTCJul 11, 23:15 UTC3h 20m
2026-07-11 UAL2292 EWR → DEN Jul 11, 14:25 UTCJul 11, 17:45 UTC3h 20m
2026-07-11 UAL2829 LAX → DEN Jul 11, 02:55 UTCJul 11, 04:45 UTC1h 50m
2026-07-10 UAL576 - Jul 10, 21:05 UTCJul 11, 00:45 UTC3h 40m
2026-07-10 UAL1946 - Jul 10, 15:25 UTCJul 10, 18:55 UTC3h 30m
2026-07-10 UAL531 - Jul 10, 05:40 UTCJul 10, 07:35 UTC1h 55m
2026-07-10 UAL531 DEN → LAX Jul 10, 05:42 UTCJul 10, 07:25 UTC1h 43m
2026-07-10 UAL407 - Jul 10, 00:20 UTCJul 10, 04:10 UTC3h 50m
2026-07-09 UAL1233 DEN → EWR Jul 9, 18:30 UTCJul 9, 22:10 UTC3h 40m
2026-07-09 UAL1701 EWR → DEN Jul 9, 12:00 UTCJul 9, 15:40 UTC3h 40m
2026-07-09 UAL3892 - Jul 9, 06:50 UTCJul 9, 08:50 UTC2h 0m
2026-07-06 UAL3896 ORD → MLB Jul 6, 05:10 UTCJul 6, 07:25 UTC2h 15m
2026-07-06 UAL3896 ORD → MLB Jul 6, 05:20 UTCJul 6, 07:25 UTC2h 5m
2026-07-06 UAL1411 - Jul 6, 00:30 UTCJul 6, 02:25 UTC1h 55m
2026-07-05 UAL577 EWR → DEN Jul 5, 17:52 UTCJul 5, 21:30 UTC3h 38m
2026-07-05 UAL577 - Jul 5, 18:00 UTCJul 5, 21:35 UTC3h 35m
2026-07-05 UAL2345 DEN → EWR Jul 5, 12:20 UTCJul 5, 15:40 UTC3h 20m
2026-07-05 UAL495 IAD → DEN Jul 5, 04:10 UTCJul 5, 07:10 UTC3h 0m
2026-07-04 UAL421 DEN → IAD Jul 4, 22:20 UTCJul 5, 01:20 UTC3h 0m
2026-07-04 UAL1150 ORD → DEN Jul 4, 18:40 UTCJul 4, 20:55 UTC2h 15m
2026-07-04 UAL1252 IAD → ORD Jul 4, 14:50 UTCJul 4, 16:08 UTC1h 18m
2026-07-04 UAL1252 IAD → ORD Jul 4, 14:45 UTCJul 4, 16:10 UTC1h 25m
2026-07-04 UAL1689 ORD → IAD Jul 4, 11:50 UTCJul 4, 13:15 UTC1h 25m
2026-07-04 UAL3914 LAS → ORD Jul 4, 05:40 UTCJul 4, 08:45 UTC3h 5m
2026-07-03 UAL777 ORD → LAS Jul 3, 19:30 UTCJul 3, 22:50 UTC3h 20m
2026-07-03 UAL787 - Jul 3, 12:25 UTCJul 3, 14:25 UTC2h 0m
2026-07-03 UAL787 - Jul 3, 02:20 UTCJul 3, 05:35 UTC3h 15m
2026-07-02 UAL714 - Jul 2, 21:40 UTCJul 3, 00:05 UTC2h 25m
2026-07-02 UAL1568 ORD → SFO Jul 2, 15:35 UTCJul 2, 19:30 UTC3h 55m
2026-07-02 UAL1389 DEN → SFO Jul 2, 02:05 UTCJul 2, 04:15 UTC2h 10m
2026-07-01 UAL746 - Jul 1, 20:30 UTCJul 1, 23:55 UTC3h 25m
2026-07-01 UAL789 DEN → DCA Jul 1, 15:50 UTCJul 1, 18:45 UTC2h 55m
2026-07-01 UAL2601 RSW → EWR Jul 1, 12:10 UTCJul 1, 14:20 UTC2h 10m
2026-07-01 UAL360T DEN → SEA Jul 1, 03:51 UTCJul 1, 06:07 UTC2h 16m

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 N14546 page for operator, model, and routing details .

Mode-S A0B846 frequently asked

What is Mode-S code A0B846?
A0B846 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N14546.
Where is Mode-S A0B846 registered?
Mode-S code A0B846 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 A0B846 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 A0B846, octal 50134106, decimal 10,532,934.
What flights does A0B846 operate?
Mode-S A0B846 has broadcast 20 distinct callsigns, including UAL706, UAL526, UAL2329, UAL2088, UAL374.