Apparatus

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sensors Mode-S transponder

ABDC76

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N86309 · EMBRAER ERJ-170-200 (long wing) · operated by UNITED AIRLINES INC

Hex
ABDC76
Octal
52756166
Decimal
11,263,094
Country
US
Tail
N86309
Type
E75L
No current signal · last broadcast Jul 26, 20:45 UTC
Flights observed
508
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:45 UTC

Last known position

Most recent position reported by Mode-S ABDC76.

Country allocation

The ICAO 24-bit address ABDC76 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
ASH6268 Mesa Airlines 8 2026-07-19
ASH6355 Mesa Airlines 7 2026-07-23
ASH6251 Mesa Airlines 7 2026-07-24
ASH6215 - 7 2026-07-12
ASH6199 - 7 2026-07-19
ASH6147 - 7 2026-07-10
ASH4027 - 7 2026-07-02
ASH6303 Mesa Airlines 6 2026-07-25
ASH6289 - 6 2026-07-11
ASH6245 Mesa Airlines 6 2026-07-23
ASH6165 Mesa Airlines 6 2026-07-23
ASH6139 - 6 2026-07-11
ASH3984 Mesa Airlines 6 2026-07-22
ASH6283 Mesa Airlines 5 2026-07-21
ASH6267 - 5 2026-06-26
ASH6254 - 5 2026-07-06
ASH6226 Mesa Airlines 5 2026-07-22
ASH6220 - 5 2026-07-04
ASH6205 - 5 2026-07-12
ASH6187 Mesa Airlines 5 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASH6322 IAH → MAF Jul 26, 19:45 UTCJul 26, 20:45 UTC1h 0m
2026-07-26 ASH6367 IAH → ELP Jul 26, 16:10 UTCJul 26, 18:05 UTC1h 55m
2026-07-26 ASH6367 IAH → ELP Jul 26, 16:12 UTCJul 26, 18:02 UTC1h 50m
2026-07-26 ASH6312 IAH → CVG Jul 26, 12:45 UTCJul 26, 14:40 UTC1h 55m
2026-07-26 ASH4000 IAH → JAX Jul 26, 10:25 UTCJul 26, 11:00 UTC35m
2026-07-25 ASH6353 DTW → IAH Jul 25, 23:50 UTCJul 26, 00:15 UTC25m
2026-07-25 ASH6353 DTW → IAH Jul 25, 23:52 UTCJul 26, 00:25 UTC33m
2026-07-25 ASH6318 IAH → CVG Jul 25, 15:15 UTCJul 25, 21:20 UTC6h 5m
2026-07-25 ASH6303 ELP → IAH Jul 25, 12:00 UTCJul 25, 13:25 UTC1h 25m
2026-07-25 ASH6303 ELP → IAH Jul 25, 11:59 UTCJul 25, 13:27 UTC1h 28m
2026-07-25 ASH4009 SAT → IAH Jul 25, 01:20 UTCJul 25, 02:25 UTC1h 5m
2026-07-24 ASH6232 LGA → IAH Jul 24, 21:15 UTCJul 24, 21:50 UTC35m
2026-07-24 ASH6177 CVG → IAD Jul 24, 19:30 UTCJul 24, 20:00 UTC30m
2026-07-24 ASH6251 DTW → IAH Jul 24, 15:05 UTCJul 24, 17:25 UTC2h 20m
2026-07-24 ASH6137 IAD → PVD Jul 24, 12:55 UTCJul 24, 14:00 UTC1h 5m
2026-07-24 ASH6279 SDF → IAD Jul 24, 10:15 UTCJul 24, 11:10 UTC55m
2026-07-24 ASH6234 LGA → IAH Jul 24, 03:30 UTCJul 24, 04:25 UTC55m
2026-07-23 ASH6165 SAV → IAD Jul 23, 23:30 UTCJul 24, 00:45 UTC1h 15m
2026-07-23 ASH6355 IAH → SAV Jul 23, 20:05 UTCJul 23, 22:10 UTC2h 5m
2026-07-23 ASH6355 IAH → SAV Jul 23, 20:14 UTCJul 23, 22:05 UTC1h 51m
2026-07-23 ASH4011 CLT → IAD Jul 23, 17:10 UTCJul 23, 18:15 UTC1h 5m
2026-07-23 ASH6186 IAH → MAF Jul 23, 14:50 UTCJul 23, 15:45 UTC55m
2026-07-23 ASH6186 IAH → MAF Jul 23, 14:55 UTCJul 23, 15:53 UTC58m
2026-07-23 ASH6245 MTY → IAH Jul 23, 11:40 UTCJul 23, 12:50 UTC1h 10m
2026-07-22 ASH6226 IAH → MTY Jul 22, 21:50 UTCJul 22, 23:00 UTC1h 10m
2026-07-22 ASH4030 - Jul 22, 18:20 UTCJul 22, 20:10 UTC1h 50m
2026-07-22 ASH6122 - Jul 22, 15:10 UTCJul 22, 17:05 UTC1h 55m
2026-07-22 ASH3984 ELP → IAH Jul 22, 12:15 UTCJul 22, 13:25 UTC1h 10m
2026-07-22 ASH3984 ELP → IAH Jul 22, 12:20 UTCJul 22, 13:30 UTC1h 10m
2026-07-21 ASH6171 IAD → BDL Jul 21, 21:45 UTCJul 21, 22:50 UTC1h 5m
2026-07-21 ASH3985 IAD → ATL Jul 21, 18:35 UTCJul 21, 20:40 UTC2h 5m
2026-07-21 ASH4073 - Jul 21, 15:20 UTCJul 21, 17:05 UTC1h 45m
2026-07-21 ASH4073 IAH → DRO Jul 21, 15:25 UTCJul 21, 17:09 UTC1h 44m
2026-07-21 ASH6283 IAH → ATL Jul 21, 11:25 UTCJul 21, 13:00 UTC1h 35m
2026-07-21 ASH6187 IAD → CVG Jul 21, 01:50 UTCJul 21, 03:30 UTC1h 40m
2026-07-20 ASH6136 - Jul 20, 22:25 UTCJul 20, 23:40 UTC1h 15m
2026-07-20 ASH6135 - Jul 20, 19:00 UTCJul 20, 19:30 UTC30m
2026-07-20 ASH6135 MSP → IAH Jul 20, 19:13 UTCJul 20, 20:52 UTC1h 39m
2026-07-20 ASH6299 - Jul 20, 16:20 UTCJul 20, 18:00 UTC1h 40m
2026-07-20 ASH6115 IAD → BDL Jul 20, 13:10 UTCJul 20, 15:05 UTC1h 55m
2026-07-20 ASH6284 IAH → MFE Jul 20, 00:00 UTCJul 20, 01:35 UTC1h 35m
2026-07-19 ASH6160 BOS → IAD Jul 19, 21:10 UTCJul 19, 22:55 UTC1h 45m
2026-07-19 ASH6160 BOS → IAD Jul 19, 21:17 UTCJul 19, 22:55 UTC1h 38m
2026-07-19 ASH6268 PWM → IAD Jul 19, 18:03 UTCJul 19, 19:07 UTC1h 4m
2026-07-19 ASH6268 PWM → IAD Jul 19, 15:15 UTCJul 19, 19:10 UTC3h 55m
2026-07-19 ASH6199 - Jul 19, 11:45 UTCJul 19, 12:55 UTC1h 10m
2026-07-19 ASH6199 BJX → IAH Jul 19, 11:13 UTCJul 19, 12:57 UTC1h 44m
2026-07-18 ASH6372 - Jul 18, 23:40 UTCJul 19, 00:50 UTC1h 10m
2026-07-18 ASH6372 IAH → BJX Jul 18, 23:41 UTCJul 19, 01:18 UTC1h 37m
2026-07-18 ASH6121 - Jul 18, 20:05 UTCJul 18, 21:25 UTC1h 20m

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 N86309 page for operator, model, and routing details .

Mode-S ABDC76 frequently asked

What is Mode-S code ABDC76?
ABDC76 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N86309.
Where is Mode-S ABDC76 registered?
Mode-S code ABDC76 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 ABDC76 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABDC76, octal 52756166, decimal 11,263,094.
What flights does ABDC76 operate?
Mode-S ABDC76 has broadcast 20 distinct callsigns, including ASH6268, ASH6355, ASH6251, ASH6215, ASH6199.