Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A8FC2E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N67827 · BOEING 737-900 · operated by UNITED AIRLINES INC

Hex
A8FC2E
Octal
52176056
Decimal
11,074,606
Country
US
Tail
N67827
Type
B739
No current signal · last broadcast Jul 23, 06:45 UTC
Flights observed
417
Distinct callsigns
20
Country
US
Last broadcast
Jul 23, 06:45 UTC

Last known position

Most recent position reported by Mode-S A8FC2E.

Country allocation

The ICAO 24-bit address A8FC2E 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
UAL1598 - 5 2026-07-11
UAL1182 - 5 2026-07-11
UAL600 - 4 2026-06-20
UAL557 - 4 2026-07-02
UAL444 - 4 2026-06-24
UAL2608 - 4 2026-06-30
UAL2425 - 4 2026-07-01
UAL2138 United Airlines 4 2026-07-19
UAL1981 United Airlines 4 2026-04-16
UAL1875 - 4 2026-07-17
UAL1401 - 4 2026-06-19
UAL1297 United Airlines 4 2026-07-19
UAL780 - 3 2026-06-16
UAL503 United Airlines 3 2026-05-24
UAL433 - 3 2026-07-14
UAL420 - 3 2026-04-13
UAL404 United Airlines 3 2026-06-12
UAL2741 United Airlines 3 2026-07-21
UAL2725 - 3 2026-07-07
UAL2370 United Airlines 3 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 UAL3874 ORD → LCQ Jul 23, 06:30 UTCJul 23, 06:45 UTC15m
2026-07-23 UAL3874 ORD → LCQ Jul 23, 06:05 UTCJul 23, 06:40 UTC35m
2026-07-23 UAL2801 FRA → SFO Jul 23, 02:05 UTCJul 23, 04:30 UTC2h 25m
2026-07-22 UAL1057 DEN → SFO Jul 22, 23:00 UTCJul 23, 01:00 UTC2h 0m
2026-07-22 UAL1215 EWR → SRQ Jul 22, 17:25 UTCJul 22, 19:25 UTC2h 0m
2026-07-22 UAL2622 LAX → ORD Jul 22, 12:40 UTCJul 22, 14:10 UTC1h 30m
2026-07-22 UAL1752 EWR → MCO Jul 22, 03:35 UTCJul 22, 05:25 UTC1h 50m
2026-07-21 UAL2741 IAD → EWR Jul 21, 22:55 UTCJul 22, 01:30 UTC2h 35m
2026-07-21 UAL2741 IAD → EWR Jul 21, 20:25 UTCJul 21, 21:05 UTC40m
2026-07-21 UAL469 IAH → ORD Jul 21, 15:20 UTCJul 21, 18:00 UTC2h 40m
2026-07-21 UAL8107 IAD → TPA Jul 21, 02:25 UTCJul 21, 06:05 UTC3h 40m
2026-07-20 UAL2117 SAN → SFO Jul 20, 23:35 UTCJul 21, 00:45 UTC1h 10m
2026-07-20 UAL2163 IAD → SAN Jul 20, 17:05 UTCJul 20, 21:35 UTC4h 30m
2026-07-20 UAL1691 EWR → IAD Jul 20, 14:35 UTCJul 20, 15:30 UTC55m
2026-07-20 UAL2078 PHX → EWR Jul 20, 07:25 UTCJul 20, 11:35 UTC4h 10m
2026-07-20 UAL2347 SNA → ORD Jul 20, 02:55 UTCJul 20, 04:35 UTC1h 40m
2026-07-19 UAL1334 ORD → SFO Jul 19, 21:00 UTCJul 20, 01:05 UTC4h 5m
2026-07-19 UAL2138 ORD → EWR Jul 19, 18:15 UTCJul 19, 19:05 UTC50m
2026-07-19 UAL2138 ORD → EWR Jul 19, 18:13 UTCJul 19, 18:34 UTC21m
2026-07-19 UAL1297 LAS → EWR Jul 19, 16:10 UTCJul 19, 16:40 UTC30m
2026-07-19 UAL1297 LAS → EWR Jul 19, 12:25 UTCJul 19, 14:15 UTC1h 50m
2026-07-19 UAL1989 ORD → RDU Jul 19, 00:10 UTCJul 19, 02:05 UTC1h 55m
2026-07-18 UAL2362 LGA → ORD Jul 18, 20:40 UTCJul 18, 22:10 UTC1h 30m
2026-07-18 UAL2333 - Jul 18, 14:55 UTCJul 18, 16:40 UTC1h 45m
2026-07-18 UAL2333 ORD → FCA Jul 18, 14:55 UTCJul 18, 18:03 UTC3h 8m
2026-07-18 UAL2801 TPA → ORD Jul 18, 00:55 UTCJul 18, 03:10 UTC2h 16m
2026-07-17 UAL1057 - Jul 17, 20:55 UTCJul 17, 23:35 UTC2h 40m
2026-07-17 UAL1875 EWR → ORD Jul 17, 15:49 UTCJul 17, 17:50 UTC2h 0m
2026-07-17 UAL2603 LAX → SFO Jul 17, 11:15 UTCJul 17, 13:35 UTC2h 20m
2026-07-17 UAL1897 LAX → ORD Jul 17, 01:39 UTCJul 17, 04:14 UTC2h 35m
2026-07-16 UAL583 MCO → EWR Jul 16, 21:19 UTCJul 16, 23:29 UTC2h 10m
2026-07-16 UAL2215 - Jul 16, 17:14 UTCJul 16, 19:20 UTC2h 5m
2026-07-16 UAL1969 - Jul 16, 11:25 UTCJul 16, 13:40 UTC2h 15m
2026-07-16 UAL1399 EWR → MCI Jul 16, 04:45 UTCJul 16, 06:44 UTC1h 59m
2026-07-16 UAL1399 - Jul 16, 04:30 UTCJul 16, 06:45 UTC2h 15m
2026-07-16 UAL1647 BOS → EWR Jul 16, 01:50 UTCJul 16, 02:40 UTC50m
2026-07-15 UAL1536 - Jul 15, 19:35 UTCJul 15, 20:15 UTC40m
2026-07-15 UAL1856 - Jul 15, 16:25 UTCJul 15, 18:10 UTC1h 45m
2026-07-15 UAL2287 - Jul 15, 13:05 UTCJul 15, 14:15 UTC1h 10m
2026-07-15 UAL8284 ORD → DSM Jul 15, 01:10 UTCJul 15, 02:00 UTC50m
2026-07-14 UAL433 ORD → ORD Jul 14, 22:25 UTCJul 14, 22:35 UTC10m
2026-07-14 UAL433 - Jul 14, 20:45 UTCJul 14, 22:35 UTC1h 50m
2026-07-14 UAL433 ALB → ORD Jul 14, 20:40 UTCJul 14, 22:06 UTC1h 26m
2026-07-14 UAL1554 - Jul 14, 17:50 UTCJul 14, 19:25 UTC1h 35m
2026-07-14 UAL2290 EWR → ORD Jul 14, 13:50 UTCJul 14, 15:30 UTC1h 40m
2026-07-14 UAL2078 PHX → EWR Jul 14, 07:55 UTCJul 14, 12:25 UTC4h 30m
2026-07-14 UAL1814 - Jul 14, 01:00 UTCJul 14, 05:10 UTC4h 10m
2026-07-13 UAL1647 BOS → EWR Jul 13, 22:05 UTCJul 13, 22:55 UTC50m
2026-07-13 UAL1536 - Jul 13, 19:45 UTCJul 13, 20:30 UTC45m
2026-07-13 UAL1536 EWR → BOS Jul 13, 19:48 UTCJul 13, 20:29 UTC41m

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 N67827 page for operator, model, and routing details .

Mode-S A8FC2E frequently asked

What is Mode-S code A8FC2E?
A8FC2E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N67827.
Where is Mode-S A8FC2E registered?
Mode-S code A8FC2E 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 A8FC2E broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 06:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8FC2E, octal 52176056, decimal 11,074,606.
What flights does A8FC2E operate?
Mode-S A8FC2E has broadcast 20 distinct callsigns, including UAL1598, UAL1182, UAL600, UAL557, UAL444.