Apparatus

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sensors Mode-S transponder

AB80F4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N840MH · BOEING 767-400 · operated by DELTA AIR LINES INC

Hex
AB80F4
Octal
52700364
Decimal
11,239,668
Country
US
Tail
N840MH
Type
B764
No current signal · last broadcast Jul 26, 20:10 UTC
Flights observed
313
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:10 UTC

Last known position

Most recent position reported by Mode-S AB80F4.

Country allocation

The ICAO 24-bit address AB80F4 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
DAL265 Delta Air Lines 21 2026-07-06
DAL28 - 15 2026-07-15
DAL37 - 14 2026-07-21
DAL36 Delta Air Lines 14 2026-07-21
DAL264 - 13 2026-07-06
DAL25 - 13 2026-07-16
DAL53 Delta Air Lines 11 2026-07-26
DAL52 Delta Air Lines 11 2026-07-26
DAL175 Delta Air Lines 11 2026-05-12
DAL174 Delta Air Lines 11 2026-05-11
DAL24 Delta Air Lines 10 2026-07-25
DAL752 - 9 2026-06-29
DAL29 Delta Air Lines 9 2026-07-25
DAL288 - 8 2026-07-14
DAL951 - 7 2026-07-13
DAL263 - 7 2026-07-12
DAL33 - 6 2026-06-21
DAL32 - 6 2026-07-20
DAL30 - 6 2026-06-20
DAL289 - 6 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL53 ZRH → JFK Jul 26, 11:55 UTCJul 26, 20:00 UTC8h 5m
2026-07-26 DAL52 JFK → ZRH Jul 26, 01:10 UTCJul 26, 08:10 UTC7h 1m
2026-07-25 DAL29 CDG → ATL Jul 25, 12:15 UTCJul 25, 20:18 UTC8h 3m
2026-07-25 DAL29 CDG → ATL Jul 25, 12:20 UTCJul 25, 20:20 UTC8h 0m
2026-07-25 DAL29 CDG → ATL Jul 25, 12:15 UTCJul 25, 20:18 UTC8h 3m
2026-07-25 DAL24 ATL → DUS Jul 25, 01:25 UTCJul 25, 04:25 UTC3h 0m
2026-07-25 DAL24 ATL → DUS Jul 25, 01:22 UTCJul 25, 09:57 UTC8h 35m
2026-07-23 DAL796 ATL → PHX Jul 23, 20:25 UTCJul 23, 23:45 UTC3h 20m
2026-07-23 DAL796 ATL → PHX Jul 23, 15:40 UTCJul 23, 18:55 UTC3h 15m
2026-07-21 DAL37 - Jul 21, 14:55 UTCJul 21, 16:10 UTC1h 15m
2026-07-21 DAL37 LHR → ATL Jul 21, 14:52 UTCJul 21, 23:29 UTC8h 37m
2026-07-21 DAL36 ATL → LHR Jul 21, 04:05 UTCJul 21, 11:50 UTC7h 45m
2026-07-20 DAL31 - Jul 20, 13:30 UTCJul 20, 21:40 UTC8h 10m
2026-07-20 DAL32 - Jul 20, 11:00 UTCJul 20, 11:10 UTC10m
2026-07-20 DAL32 - Jul 20, 02:55 UTCJul 20, 06:00 UTC3h 5m
2026-07-20 DAL32 ATL → LHR Jul 20, 02:55 UTCJul 20, 10:42 UTC7h 47m
2026-07-19 DAL37 LHR → ATL Jul 19, 14:52 UTCJul 19, 23:19 UTC8h 27m
2026-07-19 DAL37 LHR → ATL Jul 19, 14:55 UTCJul 19, 23:20 UTC8h 25m
2026-07-19 DAL36 ATL → LHR Jul 19, 04:20 UTCJul 19, 12:25 UTC8h 5m
2026-07-18 DAL37 - Jul 18, 14:40 UTCJul 18, 15:50 UTC1h 10m
2026-07-18 DAL37 LHR → ATL Jul 18, 14:38 UTCJul 18, 23:10 UTC8h 32m
2026-07-18 DAL36 ATL → LHR Jul 18, 04:10 UTCJul 18, 12:05 UTC7h 55m
2026-07-17 DAL37 - Jul 17, 15:10 UTCJul 17, 23:20 UTC8h 10m
2026-07-17 DAL36 ATL → LHR Jul 17, 04:04 UTCJul 17, 12:00 UTC7h 55m
2026-07-16 DAL25 JFK → ATL Jul 16, 22:17 UTCJul 16, 23:58 UTC1h 41m
2026-07-16 DAL25 JFK → ATL Jul 16, 22:19 UTCJul 17, 00:10 UTC1h 50m
2026-07-16 DAL25 NCE → JFK Jul 16, 11:20 UTCJul 16, 19:40 UTC8h 20m
2026-07-15 DAL28 JFK → NCE Jul 15, 23:30 UTCJul 16, 06:50 UTC7h 20m
2026-07-15 DAL28 JFK → NCE Jul 15, 23:28 UTCJul 16, 06:46 UTC7h 18m
2026-07-15 DAL979 LAX → JFK Jul 15, 14:20 UTCJul 15, 19:20 UTC5h 0m
2026-07-14 DAL707 JFK → LAX Jul 14, 23:20 UTCJul 15, 04:15 UTC4h 55m
2026-07-14 DAL289 VCE → JFK Jul 14, 12:20 UTCJul 14, 20:45 UTC8h 25m
2026-07-14 DAL288 JFK → VCE Jul 14, 02:35 UTCJul 14, 10:10 UTC7h 35m
2026-07-14 DAL288 JFK → VCE Jul 14, 02:32 UTCJul 14, 10:12 UTC7h 40m
2026-07-13 DAL951 - Jul 13, 17:20 UTCJul 13, 22:20 UTC5h 0m
2026-07-13 DAL951 LAX → JFK Jul 13, 17:20 UTCJul 13, 22:28 UTC5h 8m
2026-07-12 DAL771 JFK → LAX Jul 12, 21:40 UTCJul 13, 02:35 UTC4h 55m
2026-07-12 DAL263 - Jul 12, 09:50 UTCJul 12, 11:25 UTC1h 35m
2026-07-12 DAL263 CDG → JFK Jul 12, 09:50 UTCJul 12, 17:01 UTC7h 11m
2026-07-12 DAL263 CDG → JFK Jul 12, 09:50 UTCJul 12, 16:59 UTC7h 9m
2026-07-12 DAL262 JFK → CDG Jul 12, 00:43 UTCJul 12, 07:19 UTC6h 36m
2026-07-12 DAL262 - Jul 12, 00:45 UTCJul 12, 02:10 UTC1h 25m
2026-07-11 DAL29 NCE → JFK Jul 11, 12:50 UTCJul 11, 21:05 UTC8h 15m
2026-07-11 DAL29 NCE → JFK Jul 11, 12:46 UTCJul 11, 21:02 UTC8h 16m
2026-07-11 DAL24 ATL → NCE Jul 11, 01:25 UTCJul 11, 10:15 UTC8h 50m
2026-07-11 DAL24 ATL → NCE Jul 11, 01:26 UTCJul 11, 10:09 UTC8h 43m
2026-07-10 DAL25 NCE → ATL Jul 10, 08:35 UTCJul 10, 18:20 UTC9h 45m
2026-07-09 DAL28 - Jul 9, 22:30 UTCJul 10, 00:05 UTC1h 35m
2026-07-09 DAL28 JFK → NCE Jul 9, 22:29 UTCJul 10, 05:50 UTC7h 21m
2026-07-09 DAL263 - Jul 9, 09:55 UTCJul 9, 11:00 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 N840MH page for operator, model, and routing details .

Mode-S AB80F4 frequently asked

What is Mode-S code AB80F4?
AB80F4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N840MH.
Where is Mode-S AB80F4 registered?
Mode-S code AB80F4 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 AB80F4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB80F4, octal 52700364, decimal 11,239,668.
What flights does AB80F4 operate?
Mode-S AB80F4 has broadcast 20 distinct callsigns, including DAL265, DAL28, DAL37, DAL36, DAL264.