Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AB34EA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N821DN · BOEING 737-900 · operated by DELTA AIR LINES INC

Hex
AB34EA
Octal
52632352
Decimal
11,220,202
Country
US
Tail
N821DN
Type
B739
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
512
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S AB34EA.

Country allocation

The ICAO 24-bit address AB34EA 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
DAL2196 Delta Air Lines 8 2026-04-21
DAL1203 Delta Air Lines 8 2026-07-26
DAL1643 - 7 2026-06-23
DAL523 Delta Air Lines 5 2026-04-22
DAL481 Delta Air Lines 5 2026-07-25
DAL3106 - 5 2026-07-20
DAL2634 Delta Air Lines 5 2026-07-24
DAL2415 Delta Air Lines 5 2026-05-19
DAL2253 - 5 2026-07-13
DAL1411 - 5 2026-06-23
DAL560 Delta Air Lines 4 2026-04-22
DAL2500 - 4 2026-06-25
DAL2078 Delta Air Lines 4 2026-05-04
DAL1913 Delta Air Lines 4 2026-05-26
DAL1547 Delta Air Lines 4 2026-06-04
DAL1147 Delta Air Lines 4 2026-06-04
DAL1045 Delta Air Lines 4 2026-04-22
DAL941 - 3 2026-07-12
DAL933 Delta Air Lines 3 2026-06-02
DAL8788 Delta Air Lines 3 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2205 MCO → ATL Jul 26, 20:10 UTCJul 26, 22:30 UTC2h 20m
2026-07-26 DAL1203 LAX → SFO Jul 26, 16:55 UTCJul 26, 18:15 UTC1h 20m
2026-07-26 DAL1203 LAX → SFO Jul 26, 16:51 UTCJul 26, 18:16 UTC1h 25m
2026-07-26 DAL1203 LAX → SFO Jul 26, 13:50 UTCJul 26, 15:15 UTC1h 25m
2026-07-26 DAL1165 LGA → MCO Jul 26, 01:45 UTCJul 26, 03:20 UTC1h 35m
2026-07-25 DAL481 SEA → OGG Jul 25, 18:45 UTCJul 25, 23:50 UTC5h 5m
2026-07-25 DAL1522 MSP → PHX Jul 25, 16:05 UTCJul 25, 16:30 UTC25m
2026-07-25 DAL1522 MSP → PHX Jul 25, 16:03 UTCJul 25, 17:10 UTC1h 7m
2026-07-25 DAL1522 MSP → PHX Jul 25, 13:15 UTCJul 25, 14:15 UTC1h 0m
2026-07-25 DAL2136 SEA → LAX Jul 25, 05:10 UTCJul 25, 09:25 UTC4h 15m
2026-07-24 DAL2136 SEA → LAX Jul 24, 22:45 UTCJul 25, 03:10 UTC4h 25m
2026-07-24 DAL1359 PBI → LGA Jul 24, 20:25 UTCJul 24, 21:20 UTC55m
2026-07-24 DAL1359 PBI → LGA Jul 24, 17:05 UTCJul 24, 17:45 UTC40m
2026-07-24 DAL2634 ATL → RDU Jul 24, 14:10 UTCJul 24, 15:45 UTC1h 35m
2026-07-24 DAL2634 ATL → RDU Jul 24, 14:07 UTCJul 24, 15:37 UTC1h 30m
2026-07-24 DAL2634 ATL → RDU Jul 24, 11:35 UTCJul 24, 12:35 UTC1h 0m
2026-07-24 DAL1843 ATL → PVR Jul 24, 06:00 UTCJul 24, 09:40 UTC3h 40m
2026-07-23 DAL1843 ATL → PVR Jul 23, 23:55 UTCJul 24, 04:05 UTC4h 10m
2026-07-23 DAL1013 DTW → CLT Jul 23, 21:30 UTCJul 23, 22:15 UTC45m
2026-07-23 DAL1013 DTW → CLT Jul 23, 19:20 UTCJul 23, 20:00 UTC40m
2026-07-23 DAL569 ATL → LGA Jul 23, 13:05 UTCJul 23, 17:15 UTC4h 10m
2026-07-23 DAL637 BOS → AUS Jul 23, 00:00 UTCJul 23, 04:10 UTC4h 10m
2026-07-22 DAL637 SEA → ORD Jul 22, 18:40 UTCJul 22, 21:50 UTC3h 10m
2026-07-22 DAL354 JFK → SLC Jul 22, 11:40 UTCJul 22, 16:55 UTC5h 15m
2026-07-21 DAL1518 ATL → RDU Jul 21, 23:30 UTCJul 22, 00:25 UTC55m
2026-07-21 DAL1381 BOS → MCO Jul 21, 21:15 UTCJul 21, 22:00 UTC45m
2026-07-21 DAL1381 BOS → MCO Jul 21, 18:50 UTCJul 21, 19:30 UTC40m
2026-07-21 DAL1400 STL → ATL Jul 21, 16:00 UTCJul 21, 17:05 UTC1h 5m
2026-07-21 DAL1400 ATL → STL Jul 21, 13:20 UTCJul 21, 14:35 UTC1h 15m
2026-07-21 DAL3105 - Jul 21, 09:55 UTCJul 21, 10:55 UTC1h 0m
2026-07-21 DAL2657 ATL → IND Jul 21, 03:20 UTCJul 21, 04:20 UTC1h 0m
2026-07-21 DAL1346 DTW → MIA Jul 21, 00:35 UTCJul 21, 01:50 UTC1h 15m
2026-07-20 DAL1346 DTW → MIA Jul 20, 21:40 UTCJul 20, 23:15 UTC1h 35m
2026-07-20 DAL2710 LGA → IAH Jul 20, 17:55 UTCJul 20, 19:25 UTC1h 30m
2026-07-20 DAL2883 ATL → YYZ Jul 20, 14:15 UTCJul 20, 16:05 UTC1h 50m
2026-07-20 DAL3106 - Jul 20, 11:35 UTCJul 20, 12:30 UTC55m
2026-07-20 DAL3106 IND → ATL Jul 20, 11:30 UTCJul 20, 12:33 UTC1h 3m
2026-07-19 DAL2228 SLC → IND Jul 19, 23:55 UTCJul 20, 02:40 UTC2h 45m
2026-07-19 DAL1593 SLC → MEM Jul 19, 19:10 UTCJul 19, 22:05 UTC2h 55m
2026-07-19 DAL768 - Jul 19, 13:25 UTCJul 19, 17:05 UTC3h 40m
2026-07-19 DAL768 LAX → BNA Jul 19, 13:23 UTCJul 19, 17:11 UTC3h 48m
2026-07-18 DAL614 CUN → LAX Jul 18, 23:15 UTCJul 19, 03:35 UTC4h 20m
2026-07-18 DAL615 LAX → CUN Jul 18, 17:30 UTCJul 18, 20:20 UTC2h 50m
2026-07-18 DAL615 LAX → CUN Jul 18, 17:30 UTCJul 18, 21:47 UTC4h 17m
2026-07-18 DAL1598 - Jul 18, 14:55 UTCJul 18, 16:00 UTC1h 5m
2026-07-18 DAL1598 SFO → LAX Jul 18, 14:54 UTCJul 18, 15:51 UTC57m
2026-07-17 DAL509 BOS → LAX Jul 17, 23:50 UTCJul 18, 04:05 UTC4h 16m
2026-07-17 DAL2324 SEA → DTW Jul 17, 16:59 UTCJul 17, 20:35 UTC3h 35m
2026-07-17 DAL966 CVG → SEA Jul 17, 10:50 UTCJul 17, 15:00 UTC4h 10m
2026-07-17 DAL2248 - Jul 17, 00:20 UTCJul 17, 01:15 UTC55m

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 N821DN page for operator, model, and routing details .

Mode-S AB34EA frequently asked

What is Mode-S code AB34EA?
AB34EA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N821DN.
Where is Mode-S AB34EA registered?
Mode-S code AB34EA 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 AB34EA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB34EA, octal 52632352, decimal 11,220,202.
What flights does AB34EA operate?
Mode-S AB34EA has broadcast 20 distinct callsigns, including DAL2196, DAL1203, DAL1643, DAL523, DAL481.