Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AB5D2C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N831MH · BOEING 767-400 · operated by DELTA AIR LINES INC

Hex
AB5D2C
Octal
52656454
Decimal
11,230,508
Country
US
Tail
N831MH
Type
B764
No current signal · last broadcast 13h ago
Flights observed
268
Distinct callsigns
20
Country
US
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S AB5D2C.

Country allocation

The ICAO 24-bit address AB5D2C 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
DAL175 Delta Air Lines 18 2026-06-04
DAL174 Delta Air Lines 13 2026-06-03
DAL85 Delta Air Lines 11 2026-05-15
DAL36 Delta Air Lines 11 2026-05-17
DAL265 Delta Air Lines 11 2026-05-28
DAL97 - 10 2026-07-07
DAL264 - 10 2026-07-07
DAL267 - 8 2026-07-11
DAL100 - 8 2026-07-10
DAL84 Delta Air Lines 7 2026-05-15
DAL37 Delta Air Lines 7 2026-05-17
DAL33 - 7 2026-07-03
DAL32 Delta Air Lines 7 2026-07-01
DAL31 Delta Air Lines 7 2026-07-01
DAL30 - 7 2026-07-02
DAL98 - 6 2026-07-07
DAL979 - 6 2026-06-29
DAL83 - 6 2026-07-08
DAL752 Delta Air Lines 6 2026-04-16
DAL747 - 6 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 DAL25 NCE → ATL Jul 13, 10:15 UTCJul 13, 19:35 UTC9h 20m
2026-07-13 DAL28 JFK → NCE Jul 13, 00:01 UTCJul 13, 07:30 UTC7h 30m
2026-07-12 DAL934 LAX → JFK Jul 12, 13:25 UTCJul 12, 18:20 UTC4h 55m
2026-07-12 DAL934 LAX → JFK Jul 12, 13:23 UTCJul 12, 18:20 UTC4h 57m
2026-07-11 DAL747 JFK → LAX Jul 11, 20:30 UTCJul 12, 01:35 UTC5h 5m
2026-07-11 DAL747 JFK → LAX Jul 11, 20:30 UTCJul 12, 01:45 UTC5h 15m
2026-07-11 DAL267 - Jul 11, 08:50 UTCJul 11, 16:15 UTC7h 25m
2026-07-10 DAL100 ATL → CDG Jul 10, 22:16 UTCJul 11, 06:22 UTC8h 6m
2026-07-10 DAL100 ATL → CDG Jul 10, 22:15 UTCJul 11, 06:20 UTC8h 5m
2026-07-10 DAL131 MUC → ATL Jul 10, 09:00 UTCJul 10, 18:40 UTC9h 40m
2026-07-09 DAL130 ATL → MUC Jul 9, 22:12 UTCJul 10, 06:56 UTC8h 44m
2026-07-09 DAL130 ATL → MUC Jul 9, 22:15 UTCJul 10, 07:00 UTC8h 45m
2026-07-08 DAL83 - Jul 8, 10:05 UTCJul 8, 11:35 UTC1h 30m
2026-07-08 DAL83 CDG → ATL Jul 8, 10:02 UTCJul 8, 18:46 UTC8h 44m
2026-07-08 DAL83 CDG → ATL Jul 8, 10:02 UTCJul 8, 18:38 UTC8h 36m
2026-07-07 DAL98 - Jul 7, 23:30 UTCJul 8, 07:25 UTC7h 55m
2026-07-07 DAL97 - Jul 7, 13:00 UTCJul 7, 21:00 UTC8h 0m
2026-07-07 DAL97 CDG → CVG Jul 7, 12:58 UTCJul 7, 20:57 UTC7h 59m
2026-07-07 DAL264 JFK → CDG Jul 7, 02:50 UTCJul 7, 09:25 UTC6h 35m
2026-07-06 DAL29 NCE → JFK Jul 6, 12:20 UTCJul 6, 20:35 UTC8h 15m
2026-07-06 DAL29 NCE → JFK Jul 6, 12:19 UTCJul 6, 20:30 UTC8h 11m
2026-07-06 DAL24 ATL → NCE Jul 6, 01:30 UTCJul 6, 10:05 UTC8h 35m
2026-07-05 DAL91 ZRH → ATL Jul 5, 11:43 UTCJul 5, 21:10 UTC9h 27m
2026-07-05 DAL91 - Jul 5, 11:45 UTCJul 5, 13:35 UTC1h 50m
2026-07-05 DAL90 ATL → ZRH Jul 5, 00:45 UTCJul 5, 09:00 UTC8h 15m
2026-07-04 DAL131 MUC → ATL Jul 4, 10:10 UTCJul 4, 20:00 UTC9h 50m
2026-07-03 DAL130 ATL → MUC Jul 3, 21:55 UTCJul 4, 06:20 UTC8h 25m
2026-07-03 DAL33 - Jul 3, 08:45 UTCJul 3, 17:15 UTC8h 30m
2026-07-02 DAL30 ATL → LHR Jul 2, 22:00 UTCJul 3, 05:30 UTC7h 30m
2026-07-01 DAL31 LHR → ATL Jul 1, 12:45 UTCJul 1, 21:45 UTC9h 0m
2026-07-01 DAL32 ATL → LHR Jul 1, 02:40 UTCJul 1, 10:25 UTC7h 45m
2026-06-30 DAL9970 - Jun 30, 18:35 UTCJun 30, 20:10 UTC1h 35m
2026-06-29 DAL979 - Jun 29, 14:25 UTCJun 29, 19:00 UTC4h 35m
2026-06-29 DAL979 LAX → JFK Jun 29, 14:21 UTCJun 29, 18:55 UTC4h 34m
2026-06-28 DAL747 JFK → LAX Jun 28, 18:10 UTCJun 28, 23:29 UTC5h 20m
2026-06-28 DAL267 - Jun 28, 08:50 UTCJun 28, 16:19 UTC7h 30m
2026-06-27 DAL98 - Jun 27, 22:09 UTCJun 28, 05:29 UTC7h 20m
2026-06-27 DAL97 - Jun 27, 11:20 UTCJun 27, 19:39 UTC8h 20m
2026-06-27 DAL97 CDG → CVG Jun 27, 11:17 UTCJun 27, 19:38 UTC8h 21m
2026-06-26 DAL262 JFK → CDG Jun 26, 23:39 UTCJun 27, 06:09 UTC6h 30m
2026-06-26 DAL289 - Jun 26, 11:34 UTCJun 26, 12:59 UTC1h 25m
2026-06-26 DAL289 VCE → JFK Jun 26, 11:31 UTCJun 26, 20:13 UTC8h 42m
2026-06-26 DAL288 JFK → VCE Jun 26, 01:25 UTCJun 26, 08:48 UTC7h 23m
2026-06-26 DAL288 - Jun 26, 01:24 UTCJun 26, 03:00 UTC1h 35m
2026-06-25 DAL53 ZRH → JFK Jun 25, 12:59 UTCJun 25, 21:27 UTC8h 28m
2026-06-25 DAL53 ZRH → JFK Jun 25, 13:00 UTCJun 25, 15:15 UTC2h 15m
2026-06-25 DAL52 JFK → ZRH Jun 25, 01:20 UTCJun 25, 08:19 UTC6h 59m
2026-06-25 DAL52 - Jun 25, 01:19 UTCJun 25, 02:54 UTC1h 35m
2026-06-24 DAL934 DTW → SAN Jun 24, 13:24 UTCJun 24, 18:05 UTC4h 40m
2026-06-23 DAL747 JFK → LAX Jun 23, 19:39 UTCJun 24, 01:19 UTC5h 40m

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 N831MH page for operator, model, and routing details .

Mode-S AB5D2C frequently asked

What is Mode-S code AB5D2C?
AB5D2C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N831MH.
Where is Mode-S AB5D2C registered?
Mode-S code AB5D2C 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 AB5D2C broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB5D2C, octal 52656454, decimal 11,230,508.
What flights does AB5D2C operate?
Mode-S AB5D2C has broadcast 20 distinct callsigns, including DAL175, DAL174, DAL85, DAL36, DAL265.