Apparatus

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sensors Mode-S transponder

A0F886

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N16151 · EMBRAER ERJ-145XR · operated by UNITED AIRLINES INC

Hex
A0F886
Octal
50174206
Decimal
10,549,382
Country
US
Tail
N16151
Type
E45X
Broadcasting now · callsign UCA4321 · 5,200 ft
Flights observed
560
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Current position

A0F886 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A0F886 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
UCA4276 - 15 2026-07-17
UCA4277 - 14 2026-07-17
UCA4282 CommutAir 8 2026-07-22
UCA4240 CommutAir 8 2026-07-24
UCA4376 CommutAir 7 2026-05-28
UCA4292 - 7 2026-07-11
UCA4850 CommutAir 6 2026-06-02
UCA4825 CommutAir 6 2026-07-19
UCA4813 CommutAir 6 2026-06-27
UCA4362 - 6 2026-07-15
UCA4329 - 6 2026-06-27
UCA4300 CommutAir 6 2026-07-18
UCA4284 CommutAir 6 2026-07-23
UCA4278 - 6 2026-06-26
UCA4251 - 6 2026-07-12
UCA4896 - 5 2026-06-29
UCA4867 - 5 2026-07-17
UCA4852 - 5 2026-07-18
UCA4844 CommutAir 5 2026-07-26
UCA4827 CommutAir 5 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UCA4911 GPT → IAH Jul 26, 20:10 UTCJul 26, 21:30 UTC1h 20m
2026-07-26 UCA4356 LFT → IAH Jul 26, 17:25 UTCJul 26, 18:05 UTC40m
2026-07-26 UCA4356 LFT → IAH Jul 26, 17:20 UTCJul 26, 18:01 UTC41m
2026-07-26 UCA4906 IAH → LFT Jul 26, 15:20 UTCJul 26, 15:50 UTC30m
2026-07-26 UCA4844 PWM → IAD Jul 26, 12:10 UTCJul 26, 13:15 UTC1h 5m
2026-07-25 UCA4323 DEN → DRO Jul 25, 22:00 UTCJul 25, 22:55 UTC55m
2026-07-25 UCA4350 PWM → IAD Jul 25, 19:55 UTCJul 25, 20:55 UTC1h 0m
2026-07-25 UCA4239 IAD → PVD Jul 25, 17:55 UTCJul 25, 18:55 UTC1h 0m
2026-07-25 UCA4989 MOB → IAH Jul 25, 15:20 UTCJul 25, 16:25 UTC1h 5m
2026-07-25 UCA4295 IAD → MOB Jul 25, 02:20 UTCJul 25, 04:10 UTC1h 50m
2026-07-24 UCA4238 IAD → BTV Jul 24, 23:45 UTCJul 25, 01:00 UTC1h 15m
2026-07-24 UCA4302 DEN → XNA Jul 24, 22:05 UTCJul 24, 23:10 UTC1h 5m
2026-07-24 UCA4925 MHT → IAD Jul 24, 19:10 UTCJul 24, 20:25 UTC1h 15m
2026-07-24 UCA4930 IAD → MHT Jul 24, 16:40 UTCJul 24, 17:55 UTC1h 15m
2026-07-24 UCA4240 HSV → IAD Jul 24, 13:30 UTCJul 24, 15:00 UTC1h 30m
2026-07-24 UCA4901 IAH → LBB Jul 24, 02:25 UTCJul 24, 04:00 UTC1h 35m
2026-07-23 UCA4235 ALB → IAD Jul 23, 23:50 UTCJul 24, 00:55 UTC1h 5m
2026-07-23 UCA4812 IAD → ALB Jul 23, 12:56 UTCJul 23, 13:47 UTC51m
2026-07-23 UCA4812 IAD → ALB Jul 23, 12:50 UTCJul 23, 13:45 UTC55m
2026-07-23 UCA4351 HSV → IAD Jul 23, 02:45 UTCJul 23, 04:05 UTC1h 20m
2026-07-23 UCA4284 GSO → IAD Jul 23, 00:15 UTCJul 23, 01:45 UTC1h 30m
2026-07-22 UCA4242 CHA → TYS Jul 22, 20:05 UTCJul 22, 21:25 UTC1h 20m
2026-07-22 UCA4263 IAH → MLM Jul 22, 17:30 UTCJul 22, 19:00 UTC1h 30m
2026-07-22 UCA4282 IAD → TYS Jul 22, 14:35 UTCJul 22, 15:20 UTC45m
2026-07-22 UCA4282 IAD → TYS Jul 22, 14:36 UTCJul 22, 15:25 UTC49m
2026-07-22 UCA4320 IAH → JAN Jul 22, 01:50 UTCJul 22, 02:35 UTC45m
2026-07-21 UCA4242 - Jul 21, 20:10 UTCJul 21, 21:25 UTC1h 15m
2026-07-21 UCA4242 BHM → IAH Jul 21, 20:12 UTCJul 21, 21:24 UTC1h 12m
2026-07-21 UCA4263 IAH → MLM Jul 21, 17:25 UTCJul 21, 18:55 UTC1h 30m
2026-07-21 UCA4263 IAH → MLM Jul 21, 17:32 UTCJul 21, 18:49 UTC1h 17m
2026-07-21 UCA4282 IAD → TYS Jul 21, 14:35 UTCJul 21, 15:20 UTC45m
2026-07-21 UCA4282 IAD → TYS Jul 21, 14:36 UTCJul 21, 15:27 UTC51m
2026-07-21 UCA4334 - Jul 21, 00:00 UTCJul 21, 00:45 UTC45m
2026-07-20 UCA4379 - Jul 20, 21:40 UTCJul 20, 22:35 UTC55m
2026-07-20 UCA4366 - Jul 20, 19:50 UTCJul 20, 20:35 UTC45m
2026-07-20 UCA4366 IAH → MFE Jul 20, 19:54 UTCJul 20, 20:37 UTC43m
2026-07-20 UCA4827 SGF → IAH Jul 20, 17:05 UTCJul 20, 18:15 UTC1h 10m
2026-07-20 UCA4827 SGF → IAH Jul 20, 17:08 UTCJul 20, 18:13 UTC1h 5m
2026-07-20 UCA4821 - Jul 20, 14:45 UTCJul 20, 15:50 UTC1h 5m
2026-07-20 UCA4917 ICT → IAH Jul 20, 11:35 UTCJul 20, 13:05 UTC1h 30m
2026-07-19 UCA4855 IAH → BRO Jul 19, 23:30 UTCJul 20, 00:50 UTC1h 20m
2026-07-19 UCA4855 IAH → BRO Jul 19, 23:38 UTCJul 20, 00:50 UTC1h 12m
2026-07-19 UCA4377 - Jul 19, 21:45 UTCJul 19, 22:25 UTC40m
2026-07-19 UCA4377 CRP → IAH Jul 19, 21:55 UTCJul 19, 22:24 UTC29m
2026-07-19 UCA4825 IAD → PVD Jul 19, 20:25 UTCJul 19, 21:00 UTC35m
2026-07-19 UCA4825 IAD → PVD Jul 19, 20:39 UTCJul 19, 21:00 UTC21m
2026-07-19 UCA4245 JAN → IAH Jul 19, 17:25 UTCJul 19, 18:15 UTC50m
2026-07-19 UCA4347 IAH → JAN Jul 19, 15:15 UTCJul 19, 16:00 UTC45m
2026-07-19 UCA4318 - Jul 19, 12:20 UTCJul 19, 13:15 UTC55m
2026-07-19 UCA4320 - Jul 19, 01:45 UTCJul 19, 02:25 UTC40m

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 N16151 page for operator, model, and routing details .

Mode-S A0F886 frequently asked

What is Mode-S code A0F886?
A0F886 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N16151.
Where is Mode-S A0F886 registered?
Mode-S code A0F886 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 A0F886 broadcasting right now?
Yes. Mode-S A0F886 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0F886, octal 50174206, decimal 10,549,382.
What flights does A0F886 operate?
Mode-S A0F886 has broadcast 20 distinct callsigns, including UCA4276, UCA4277, UCA4282, UCA4240, UCA4376.