Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AD2EFA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N949DZ · operated by DELTA AIR LINES INC

Hex
AD2EFA
Octal
53227372
Decimal
11,349,754
Country
US
Tail
N949DZ
Type
B739
Broadcasting now · callsign DAL1130 · 36,000 ft
Flights observed
293
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

AD2EFA is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD2EFA 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
DAL3196 Delta Air Lines 21 2026-05-28
DAL2471 Delta Air Lines 14 2026-05-29
DAL3107 Delta Air Lines 13 2026-05-18
DAL1381 Delta Air Lines 11 2026-05-29
DAL1660 Delta Air Lines 10 2026-05-20
DAL1470 Delta Air Lines 10 2026-05-23
DAL527 Delta Air Lines 9 2026-05-04
DAL2908 Delta Air Lines 9 2026-05-25
DAL1246 Delta Air Lines 9 2026-05-24
DAL2827 Delta Air Lines 8 2026-05-04
DAL3105 Delta Air Lines 7 2026-05-21
DAL2911 Delta Air Lines 7 2026-05-25
DAL1204 Delta Air Lines 7 2026-05-25
DAL3198 Delta Air Lines 6 2026-05-06
DAL3132 Delta Air Lines 6 2026-05-01
DAL2747 Delta Air Lines 6 2026-05-01
DAL1674 Delta Air Lines 6 2026-05-18
DAL1568 Delta Air Lines 6 2026-05-18
DAL1130 Delta Air Lines 6 2026-05-15
DAL3153 Delta Air Lines 5 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 DAL1381 BOS → MCO May 29, 22:10 UTCMay 29, 23:20 UTC1h 10m
2026-05-29 DAL1381 BOS → MCO May 29, 18:50 UTCMay 29, 19:35 UTC45m
2026-05-29 DAL2471 LEX → ATL May 29, 15:45 UTCMay 29, 17:20 UTC1h 35m
2026-05-29 DAL2471 LEX → ATL May 29, 12:35 UTCMay 29, 14:10 UTC1h 35m
2026-05-28 DAL2152 ATL → BDL May 28, 21:20 UTCMay 28, 22:50 UTC1h 30m
2026-05-28 DAL2152 ATL → BDL May 28, 18:20 UTCMay 28, 20:00 UTC1h 40m
2026-05-28 DAL3196 XNA → DTW May 28, 15:35 UTCMay 28, 16:40 UTC1h 5m
2026-05-28 DAL3196 XNA → DTW May 28, 15:32 UTCMay 28, 16:41 UTC1h 9m
2026-05-28 DAL3196 XNA → DTW May 28, 12:55 UTCMay 28, 14:00 UTC1h 5m
2026-05-28 DAL3154 DAB → ATL May 28, 10:15 UTCMay 28, 11:10 UTC55m
2026-05-28 DAL2810 STL → MSP May 28, 03:15 UTCMay 28, 04:10 UTC55m
2026-05-27 DAL3083 VPS → ATL May 27, 23:20 UTCMay 28, 00:15 UTC55m
2026-05-27 DAL3083 VPS → ATL May 27, 21:15 UTCMay 27, 21:50 UTC35m
2026-05-27 DAL1271 ORD → SLC May 27, 18:30 UTCMay 27, 19:35 UTC1h 5m
2026-05-27 DAL1271 ORD → SLC May 27, 16:10 UTCMay 27, 17:10 UTC1h 0m
2026-05-27 DAL1097 BOS → RSW May 27, 01:14 UTCMay 27, 02:14 UTC1h 0m
2026-05-27 DAL1097 BOS → RSW May 27, 01:12 UTCMay 27, 02:14 UTC1h 2m
2026-05-26 DAL1097 BOS → RSW May 26, 23:05 UTCMay 27, 00:10 UTC1h 5m
2026-05-26 DAL2547 GRR → ATL May 26, 17:50 UTCMay 26, 19:30 UTC1h 40m
2026-05-26 DAL2547 GRR → ATL May 26, 14:45 UTCMay 26, 16:10 UTC1h 25m
2026-05-26 DAL686 SLC → SFO May 26, 12:14 UTCMay 26, 13:00 UTC45m
2026-05-26 DAL686 SLC → SFO May 26, 12:15 UTCMay 26, 12:58 UTC43m
2026-05-26 DAL3168 ATL → ILM May 26, 02:44 UTCMay 26, 03:19 UTC35m
2026-05-26 DAL3083 VPS → ATL May 26, 00:19 UTCMay 26, 01:00 UTC40m
2026-05-25 DAL3083 VPS → ATL May 25, 20:34 UTCMay 25, 21:15 UTC40m
2026-05-25 DAL2908 ATL → MCI May 25, 17:30 UTCMay 25, 19:10 UTC1h 40m
2026-05-25 DAL2908 ATL → MCI May 25, 17:28 UTCMay 25, 19:05 UTC1h 37m
2026-05-25 DAL2908 ATL → MCI May 25, 14:20 UTCMay 25, 15:55 UTC1h 35m
2026-05-25 DAL1204 LGA → RSW May 25, 10:55 UTCMay 25, 12:35 UTC1h 40m
2026-05-25 DAL2911 BOS → MIA May 25, 03:10 UTCMay 25, 04:50 UTC1h 40m
2026-05-24 DAL1246 MSP → BOS May 24, 21:10 UTCMay 24, 21:45 UTC35m
2026-05-24 DAL1246 MSP → BOS May 24, 21:08 UTCMay 24, 22:57 UTC1h 49m
2026-05-24 DAL1246 MSP → BOS May 24, 18:05 UTCMay 24, 19:40 UTC1h 35m
2026-05-23 DAL1470 BOS → RDU May 23, 01:10 UTCMay 23, 02:50 UTC1h 39m
2026-05-22 DAL1470 BOS → RDU May 22, 21:00 UTCMay 22, 22:50 UTC1h 50m
2026-05-22 DAL2778 MEM → ATL May 22, 17:55 UTCMay 22, 18:45 UTC50m
2026-05-22 DAL2778 MEM → ATL May 22, 15:25 UTCMay 22, 16:25 UTC1h 0m
2026-05-22 DAL1212 DCA → ATL May 22, 12:15 UTCMay 22, 13:50 UTC1h 35m
2026-05-22 DAL3023 MCO → JFK May 22, 01:35 UTCMay 22, 03:15 UTC1h 40m
2026-05-21 DAL2152 ATL → BDL May 21, 21:45 UTCMay 21, 23:25 UTC1h 40m
2026-05-21 DAL2152 ATL → BDL May 21, 18:39 UTCMay 21, 20:16 UTC1h 37m
2026-05-21 DAL2152 ATL → BDL May 21, 18:40 UTCMay 21, 20:20 UTC1h 40m
2026-05-21 DAL3196 XNA → DTW May 21, 15:45 UTCMay 21, 17:00 UTC1h 15m
2026-05-21 DAL3196 XNA → DTW May 21, 12:55 UTCMay 21, 14:00 UTC1h 5m
2026-05-21 DAL3105 IND → ATL May 21, 10:10 UTCMay 21, 10:30 UTC20m
2026-05-21 DAL3105 IND → ATL May 21, 10:07 UTCMay 21, 11:15 UTC1h 8m
2026-05-21 DAL3153 ATL → IND May 21, 02:15 UTCMay 21, 03:15 UTC1h 0m
2026-05-20 DAL1660 MCI → ATL May 20, 22:35 UTCMay 21, 00:10 UTC1h 35m
2026-05-20 DAL1660 MCI → ATL May 20, 19:30 UTCMay 20, 21:05 UTC1h 35m
2026-05-20 DAL3196 XNA → DTW May 20, 15:40 UTCMay 20, 16:50 UTC1h 10m

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 N949DZ page for operator, model, and routing details .

Mode-S AD2EFA frequently asked

What is Mode-S code AD2EFA?
AD2EFA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N949DZ.
Where is Mode-S AD2EFA registered?
Mode-S code AD2EFA 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 AD2EFA broadcasting right now?
Yes. Mode-S AD2EFA is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD2EFA, octal 53227372, decimal 11,349,754.
What flights does AD2EFA operate?
Mode-S AD2EFA has broadcast 20 distinct callsigns, including DAL3196, DAL2471, DAL3107, DAL1381, DAL1660.