Apparatus

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sensors Mode-S transponder

ABB59E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N85351 · EMBRAER ERJ-170-200 (long wing) · operated by UNITED AIRLINES INC

Hex
ABB59E
Octal
52732636
Decimal
11,253,150
Country
US
Tail
N85351
Type
E75L
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
588
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S ABB59E.

Country allocation

The ICAO 24-bit address ABB59E 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
ASH4065 Mesa Airlines 13 2026-07-26
ASH6271 Mesa Airlines 12 2026-07-26
ASH4032 Mesa Airlines 11 2026-07-17
ASH6165 - 10 2026-06-30
ASH6137 Mesa Airlines 10 2026-06-13
ASH3985 Mesa Airlines 10 2026-07-23
ASH6251 Mesa Airlines 9 2026-06-13
ASH6113 - 9 2026-07-15
ASH6355 Mesa Airlines 8 2026-07-26
ASH3987 - 8 2026-07-15
ASH6242 - 7 2026-07-03
ASH6131 - 7 2026-07-17
ASH4023 - 7 2026-07-03
ASH6367 - 6 2026-06-26
ASH6334 Mesa Airlines 6 2026-06-10
ASH6312 - 6 2026-06-26
ASH6182 Mesa Airlines 6 2026-07-25
ASH6146 - 6 2026-07-13
ASH4070 Mesa Airlines 6 2026-05-31
ASH4055 - 6 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASH6355 IAH → SAV Jul 26, 20:05 UTCJul 26, 21:30 UTC1h 25m
2026-07-26 ASH4065 BDL → IAD Jul 26, 16:00 UTCJul 26, 18:15 UTC2h 15m
2026-07-26 ASH6271 IAD → BDL Jul 26, 12:40 UTCJul 26, 14:55 UTC2h 15m
2026-07-25 ASH6182 RDU → IAD Jul 25, 21:25 UTCJul 25, 22:45 UTC1h 20m
2026-07-25 ASH6181 PNS → IAH Jul 25, 17:50 UTCJul 25, 18:55 UTC1h 5m
2026-07-25 ASH6181 PNS → IAH Jul 25, 17:47 UTCJul 25, 19:27 UTC1h 40m
2026-07-24 ASH6289 IAH → SAT Jul 24, 22:10 UTCJul 25, 15:25 UTC17h 15m
2026-07-24 ASH4061 SAT → IAH Jul 24, 19:30 UTCJul 24, 20:40 UTC1h 10m
2026-07-24 ASH6338 IAH → ELP Jul 24, 17:00 UTCJul 24, 18:00 UTC1h 0m
2026-07-24 ASH6326 IAH → DFW Jul 24, 13:40 UTCJul 24, 15:35 UTC1h 55m
2026-07-23 ASH4050 IAH → SAT Jul 23, 22:05 UTCJul 23, 23:55 UTC1h 50m
2026-07-23 ASH3985 IAD → ATL Jul 23, 19:20 UTCJul 23, 20:00 UTC40m
2026-07-23 ASH4024 BWI → IAH Jul 23, 17:40 UTCJul 23, 18:25 UTC45m
2026-07-23 ASH6223 PHX → IAH Jul 23, 13:30 UTCJul 23, 15:40 UTC2h 10m
2026-07-22 ASH6132 IAD → MSP Jul 22, 22:00 UTCJul 22, 23:55 UTC1h 55m
2026-07-22 ASH6281 PHX → IAH Jul 22, 19:25 UTCJul 22, 20:05 UTC40m
2026-07-22 ASH6202 LGA → IAH Jul 22, 17:30 UTCJul 22, 18:00 UTC30m
2026-07-21 ASH6289 - Jul 21, 22:20 UTCJul 22, 14:50 UTC16h 30m
2026-07-21 ASH4027 CLT → IAD Jul 21, 18:30 UTCJul 21, 20:35 UTC2h 5m
2026-07-21 ASH6147 IAH → CLE Jul 21, 14:50 UTCJul 21, 16:43 UTC1h 53m
2026-07-21 ASH6147 IAH → CLE Jul 21, 14:35 UTCJul 21, 16:35 UTC2h 0m
2026-07-21 ASH4006 - Jul 21, 11:20 UTCJul 21, 13:15 UTC1h 55m
2026-07-21 ASH4075 IAH → GSP Jul 21, 02:00 UTCJul 21, 04:00 UTC2h 0m
2026-07-20 ASH6231 - Jul 20, 21:10 UTCJul 20, 23:35 UTC2h 25m
2026-07-20 ASH4057 - Jul 20, 17:25 UTCJul 20, 20:05 UTC2h 40m
2026-07-20 ASH6238 - Jul 20, 13:00 UTCJul 20, 14:15 UTC1h 15m
2026-07-19 ASH6237 - Jul 19, 23:30 UTCJul 20, 00:40 UTC1h 10m
2026-07-19 ASH6237 IAH → AGU Jul 19, 23:38 UTCJul 20, 01:07 UTC1h 29m
2026-07-19 ASH6215 IAH → MKE Jul 19, 18:58 UTCJul 19, 20:52 UTC1h 54m
2026-07-19 ASH6215 IAH → MKE Jul 19, 15:30 UTCJul 19, 20:55 UTC5h 25m
2026-07-19 ASH6245 MTY → IAH Jul 19, 11:35 UTCJul 19, 12:40 UTC1h 5m
2026-07-18 ASH6226 IAH → MTY Jul 18, 21:45 UTCJul 18, 22:55 UTC1h 10m
2026-07-18 ASH6226 IAH → MTY Jul 18, 21:52 UTCJul 18, 22:53 UTC1h 1m
2026-07-18 ASH6268 - Jul 18, 18:05 UTCJul 18, 19:05 UTC1h 0m
2026-07-18 ASH6267 - Jul 18, 15:15 UTCJul 18, 16:15 UTC1h 0m
2026-07-18 ASH6267 IAH → TAM Jul 18, 15:13 UTCJul 18, 16:36 UTC1h 23m
2026-07-17 ASH4032 IAH → DFW Jul 17, 22:55 UTCJul 18, 01:34 UTC2h 40m
2026-07-17 ASH4032 IAH → DFW Jul 17, 23:01 UTCJul 18, 01:35 UTC2h 34m
2026-07-17 ASH6131 - Jul 17, 19:15 UTCJul 17, 21:39 UTC2h 25m
2026-07-16 ASH6289 - Jul 16, 22:40 UTCJul 17, 15:15 UTC16h 35m
2026-07-16 ASH4027 - Jul 16, 18:15 UTCJul 16, 20:19 UTC2h 5m
2026-07-16 ASH6147 - Jul 16, 14:45 UTCJul 16, 16:40 UTC1h 55m
2026-07-16 ASH6283 STL → IAH Jul 16, 11:34 UTCJul 16, 13:02 UTC1h 28m
2026-07-16 ASH6283 - Jul 16, 11:25 UTCJul 16, 13:00 UTC1h 35m
2026-07-16 ASH6187 - Jul 16, 02:15 UTCJul 16, 03:55 UTC1h 40m
2026-07-15 ASH6113 - Jul 15, 23:35 UTCJul 16, 01:15 UTC1h 40m
2026-07-15 ASH3987 - Jul 15, 19:45 UTCJul 15, 21:20 UTC1h 35m
2026-07-15 ASH4011 - Jul 15, 17:35 UTCJul 15, 18:50 UTC1h 15m
2026-07-15 ASH4011 MAF → IAH Jul 15, 17:11 UTCJul 15, 18:45 UTC1h 34m
2026-07-15 ASH6186 - Jul 15, 14:45 UTCJul 15, 15:50 UTC1h 5m

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 N85351 page for operator, model, and routing details .

Mode-S ABB59E frequently asked

What is Mode-S code ABB59E?
ABB59E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N85351.
Where is Mode-S ABB59E registered?
Mode-S code ABB59E 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 ABB59E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABB59E, octal 52732636, decimal 11,253,150.
What flights does ABB59E operate?
Mode-S ABB59E has broadcast 20 distinct callsigns, including ASH4065, ASH6271, ASH4032, ASH6165, ASH6137.