Apparatus

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sensors Mode-S transponder

A0B88F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N14569 · AIRBUS A-321neo · operated by UNITED AIRLINES INC

Hex
A0B88F
Octal
50134217
Decimal
10,533,007
Country
US
Tail
N14569
Type
A21N
No current signal · last broadcast Jul 26, 18:45 UTC
Flights observed
409
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 18:45 UTC

Last known position

Most recent position reported by Mode-S A0B88F.

Country allocation

The ICAO 24-bit address A0B88F 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
UAL1010 United Airlines 10 2026-05-03
UAL2683 United Airlines 6 2026-07-26
UAL1755 - 6 2026-07-05
UAL597 United Airlines 5 2026-07-18
UAL577 - 5 2026-07-15
UAL2446 - 5 2026-07-10
UAL2278 United Airlines 5 2026-04-29
UAL212 United Airlines 5 2026-07-23
UAL1424 - 5 2026-07-12
UAL706 - 4 2026-06-19
UAL2834 - 4 2026-07-10
UAL2827 United Airlines 4 2026-07-24
UAL2408 United Airlines 4 2026-07-21
UAL2345 - 4 2026-07-15
UAL2106 - 4 2026-07-10
UAL1915 United Airlines 4 2026-04-24
UAL1812 - 4 2026-07-19
UAL1448 United Airlines 4 2026-05-19
UAL1356 - 4 2026-07-17
UAL1246 - 4 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL2683 ORD → SAN Jul 26, 16:10 UTCJul 26, 18:25 UTC2h 15m
2026-07-26 UAL3929 IAH → SFO Jul 26, 13:00 UTCJul 26, 15:00 UTC2h 0m
2026-07-25 UAL1732 PHL → IAH Jul 25, 16:40 UTCJul 25, 19:05 UTC2h 25m
2026-07-25 UAL1076 DEN → SFO Jul 25, 13:00 UTCJul 25, 14:50 UTC1h 50m
2026-07-25 UAL787 SJC → IAH Jul 25, 01:50 UTCJul 25, 04:00 UTC2h 10m
2026-07-24 UAL714 ORD → FLL Jul 24, 21:40 UTCJul 24, 23:45 UTC2h 5m
2026-07-24 UAL2827 IAH → ORD Jul 24, 17:20 UTCJul 24, 19:30 UTC2h 10m
2026-07-24 UAL2827 IAH → ORD Jul 24, 17:12 UTCJul 24, 19:10 UTC1h 58m
2026-07-24 UAL1231 RDU → EWR Jul 24, 13:40 UTCJul 24, 15:50 UTC2h 10m
2026-07-24 UAL8124 ORD → AUS Jul 24, 03:40 UTCJul 24, 05:35 UTC1h 55m
2026-07-23 UAL1770 EWR → SAV Jul 23, 21:30 UTCJul 24, 01:20 UTC3h 50m
2026-07-23 UAL2354 BUR → SFO Jul 23, 16:35 UTCJul 23, 19:55 UTC3h 20m
2026-07-23 UAL1217 IAH → BOS Jul 23, 12:40 UTCJul 23, 14:50 UTC2h 10m
2026-07-23 UAL212 DEN → SBA Jul 23, 00:15 UTCJul 23, 03:40 UTC3h 25m
2026-07-22 UAL1363 SJC → DEN Jul 22, 19:00 UTCJul 22, 22:40 UTC3h 40m
2026-07-22 UAL2683 ORD → SAN Jul 22, 13:50 UTCJul 22, 16:20 UTC2h 30m
2026-07-22 UAL259 DEN → MCO Jul 22, 00:15 UTCJul 22, 03:25 UTC3h 10m
2026-07-21 UAL1323 EWR → JAX Jul 21, 21:00 UTCJul 21, 22:35 UTC1h 35m
2026-07-21 UAL526 AMM → IAD Jul 21, 17:45 UTCJul 21, 19:10 UTC1h 25m
2026-07-21 UAL792 LAX → EWR Jul 21, 13:00 UTCJul 21, 16:20 UTC3h 20m
2026-07-21 UAL2408 RSW → EWR Jul 21, 00:25 UTCJul 21, 03:15 UTC2h 50m
2026-07-20 UAL1351 BFI → DEN Jul 20, 20:05 UTCJul 20, 22:20 UTC2h 15m
2026-07-20 UAL2099 - Jul 20, 14:15 UTCJul 20, 18:15 UTC4h 0m
2026-07-19 UAL1482 SAT → SFO Jul 19, 23:40 UTCJul 20, 03:05 UTC3h 25m
2026-07-19 UAL1812 - Jul 19, 19:50 UTCJul 19, 22:10 UTC2h 20m
2026-07-19 UAL662 BOS → DEN Jul 19, 14:15 UTCJul 19, 18:10 UTC3h 55m
2026-07-18 UAL597 EWR → LAS Jul 18, 21:20 UTCJul 19, 00:45 UTC3h 25m
2026-07-18 UAL662 - Jul 18, 14:45 UTCJul 18, 18:45 UTC4h 0m
2026-07-18 UAL662 BOS → BOS Jul 18, 13:30 UTCJul 18, 13:35 UTC5m
2026-07-17 UAL597 EWR → LAS Jul 17, 20:29 UTCJul 18, 00:00 UTC3h 30m
2026-07-17 UAL581 - Jul 17, 16:40 UTCJul 17, 18:34 UTC1h 55m
2026-07-17 UAL2631 BOS → ORD Jul 17, 11:30 UTCJul 17, 13:50 UTC2h 20m
2026-07-17 UAL1356 DEN → BOS Jul 17, 00:10 UTCJul 17, 03:34 UTC3h 25m
2026-07-16 UAL1411 PDX → DEN Jul 16, 20:00 UTCJul 16, 22:05 UTC2h 5m
2026-07-16 UAL1994 ORD → PDX Jul 16, 15:02 UTCJul 16, 18:35 UTC3h 33m
2026-07-16 UAL1994 ORD → PDX Jul 16, 14:55 UTCJul 16, 18:40 UTC3h 45m
2026-07-16 UAL530 EWR → ORD Jul 16, 11:20 UTCJul 16, 13:15 UTC1h 55m
2026-07-16 UAL1209 ORD → EWR Jul 16, 04:20 UTCJul 16, 05:50 UTC1h 30m
2026-07-15 UAL675 DEN → ORD Jul 15, 22:45 UTCJul 16, 00:50 UTC2h 5m
2026-07-15 UAL577 EWR → DEN Jul 15, 17:52 UTCJul 15, 21:05 UTC3h 13m
2026-07-15 UAL577 - Jul 15, 17:50 UTCJul 15, 21:10 UTC3h 20m
2026-07-15 UAL2345 DEN → EWR Jul 15, 12:18 UTCJul 15, 15:35 UTC3h 17m
2026-07-15 UAL2345 DEN → EWR Jul 15, 12:20 UTCJul 15, 15:40 UTC3h 20m
2026-07-15 UAL2829 - Jul 15, 03:05 UTCJul 15, 05:00 UTC1h 55m
2026-07-14 UAL576 - Jul 14, 21:30 UTCJul 15, 01:00 UTC3h 29m
2026-07-14 UAL1946 - Jul 14, 15:30 UTCJul 14, 19:15 UTC3h 45m
2026-07-14 UAL531 - Jul 14, 04:20 UTCJul 14, 06:10 UTC1h 50m
2026-07-14 UAL2667 IAD → DEN Jul 14, 00:05 UTCJul 14, 03:05 UTC3h 0m
2026-07-13 UAL2853 DEN → IAD Jul 13, 19:25 UTCJul 13, 22:25 UTC3h 0m
2026-07-13 UAL1450 - Jul 13, 15:25 UTCJul 13, 17:25 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 N14569 page for operator, model, and routing details .

Mode-S A0B88F frequently asked

What is Mode-S code A0B88F?
A0B88F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N14569.
Where is Mode-S A0B88F registered?
Mode-S code A0B88F 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 A0B88F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0B88F, octal 50134217, decimal 10,533,007.
What flights does A0B88F operate?
Mode-S A0B88F has broadcast 20 distinct callsigns, including UAL1010, UAL2683, UAL1755, UAL597, UAL577.