Apparatus

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sensors Mode-S transponder

AD1C67

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N944DZ · operated by DELTA AIR LINES INC

Hex
AD1C67
Octal
53216147
Decimal
11,344,999
Country
US
Tail
N944DZ
Type
B739
Transponder active on ground
Flights observed
481
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S AD1C67.

Country allocation

The ICAO 24-bit address AD1C67 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
DAL2208 Delta Air Lines 14 2026-07-25
DAL1055 Delta Air Lines 11 2026-07-26
DAL902 Delta Air Lines 7 2026-05-26
DAL2221 Delta Air Lines 7 2026-07-20
DAL2205 - 6 2026-07-05
DAL2129 - 6 2026-07-08
DAL1793 Delta Air Lines 6 2026-05-30
DAL1423 Delta Air Lines 6 2026-07-18
DAL1203 Delta Air Lines 6 2026-07-05
DAL858 - 5 2026-07-17
DAL355 - 5 2026-07-16
DAL1440 - 5 2026-07-16
DAL891 - 4 2026-06-18
DAL769 - 4 2026-07-06
DAL2854 Delta Air Lines 4 2026-07-24
DAL2696 Delta Air Lines 4 2026-06-13
DAL2695 Delta Air Lines 4 2026-04-14
DAL2524 Delta Air Lines 4 2026-04-18
DAL2462 Delta Air Lines 4 2026-07-22
DAL2214 - 4 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL703 SMF → ATL Jul 26, 21:10 UTCJul 26, 21:45 UTC35m
2026-07-26 DAL1047 FLL → ATL Jul 26, 16:50 UTCJul 26, 17:45 UTC55m
2026-07-26 DAL1047 FLL → ATL Jul 26, 16:49 UTCJul 26, 19:24 UTC2h 35m
2026-07-26 DAL1047 FLL → ATL Jul 26, 12:40 UTCJul 26, 15:20 UTC2h 40m
2026-07-26 DAL1055 ATL → PBI Jul 26, 06:10 UTCJul 26, 10:50 UTC4h 41m
2026-07-26 DAL1055 ATL → PBI Jul 26, 06:09 UTCJul 26, 10:53 UTC4h 44m
2026-07-25 DAL1055 ATL → PBI Jul 25, 23:25 UTCJul 26, 04:35 UTC5h 10m
2026-07-25 DAL2208 MSP → JFK Jul 25, 18:55 UTCJul 25, 21:35 UTC2h 40m
2026-07-25 DAL2208 MSP → JFK Jul 25, 18:55 UTCJul 25, 21:35 UTC2h 40m
2026-07-25 DAL2208 MSP → JFK Jul 25, 14:35 UTCJul 25, 17:20 UTC2h 45m
2026-07-25 DAL2757 BDL → ATL Jul 25, 11:10 UTCJul 25, 12:35 UTC1h 25m
2026-07-25 DAL2228 SLC → IND Jul 25, 00:10 UTCJul 25, 02:50 UTC2h 40m
2026-07-24 DAL1593 SLC → MEM Jul 24, 19:15 UTCJul 24, 22:25 UTC3h 10m
2026-07-24 DAL1593 SLC → MEM Jul 24, 19:12 UTCJul 24, 22:19 UTC3h 7m
2026-07-24 DAL768 SFO → ATL Jul 24, 13:35 UTCJul 24, 17:10 UTC3h 35m
2026-07-24 DAL768 SFO → ATL Jul 24, 13:34 UTCJul 24, 17:10 UTC3h 36m
2026-07-24 DAL2854 BOS → MCO Jul 24, 04:56 UTCJul 24, 07:03 UTC2h 7m
2026-07-24 DAL2854 BOS → MCO Jul 24, 05:00 UTCJul 24, 07:10 UTC2h 10m
2026-07-23 DAL944 MSP → SJC Jul 23, 21:00 UTCJul 24, 01:20 UTC4h 20m
2026-07-23 DAL1519 MSP → DEN Jul 23, 18:15 UTCJul 23, 19:25 UTC1h 10m
2026-07-23 DAL2553 JFK → SFO Jul 23, 13:50 UTCJul 23, 16:25 UTC2h 35m
2026-07-23 DAL2297 AUS → MSP Jul 23, 00:00 UTCJul 23, 02:40 UTC2h 40m
2026-07-22 DAL2462 RSW → MSP Jul 22, 19:25 UTCJul 22, 21:55 UTC2h 30m
2026-07-22 DAL2462 RSW → MSP Jul 22, 15:40 UTCJul 22, 17:35 UTC1h 55m
2026-07-22 DAL1056 - Jul 22, 11:25 UTCJul 22, 13:55 UTC2h 30m
2026-07-22 DAL2187 JFK → MCO Jul 22, 00:10 UTCJul 22, 03:17 UTC3h 7m
2026-07-22 DAL2187 JFK → MCO Jul 22, 00:15 UTCJul 22, 03:20 UTC3h 5m
2026-07-21 DAL2483 SJC → SLC Jul 21, 19:20 UTCJul 21, 22:00 UTC2h 40m
2026-07-21 DAL2482 BOS → CVG Jul 21, 14:20 UTCJul 21, 17:40 UTC3h 20m
2026-07-21 DAL1055 ATL → PBI Jul 21, 06:10 UTCJul 21, 10:55 UTC4h 45m
2026-07-20 DAL1055 ATL → PBI Jul 20, 23:30 UTCJul 21, 01:35 UTC2h 4m
2026-07-20 DAL1055 ATL → PBI Jul 20, 23:30 UTCJul 21, 04:46 UTC5h 16m
2026-07-20 DAL2208 MSP → JFK Jul 20, 19:00 UTCJul 20, 21:45 UTC2h 45m
2026-07-20 DAL2208 MSP → JFK Jul 20, 14:40 UTCJul 20, 17:15 UTC2h 35m
2026-07-20 DAL2221 PHL → MSP Jul 20, 11:10 UTCJul 20, 13:20 UTC2h 10m
2026-07-20 DAL1144 MSP → GEG Jul 20, 01:30 UTCJul 20, 02:55 UTC1h 25m
2026-07-19 DAL2946 MSP → DFW Jul 19, 22:10 UTCJul 19, 23:57 UTC1h 47m
2026-07-19 DAL2946 MSP → DFW Jul 19, 18:35 UTCJul 19, 23:55 UTC5h 20m
2026-07-19 DAL2134 RIC → ATL Jul 19, 13:50 UTCJul 19, 17:00 UTC3h 10m
2026-07-19 DAL2672 ATL → DTW Jul 19, 02:50 UTCJul 19, 05:20 UTC2h 30m
2026-07-18 DAL871 SLC → SEA Jul 18, 23:40 UTCJul 19, 01:10 UTC1h 30m
2026-07-18 DAL1423 MSN → DTW Jul 18, 20:45 UTCJul 18, 22:00 UTC1h 15m
2026-07-18 DAL1423 MSN → DTW Jul 18, 20:42 UTCJul 18, 21:55 UTC1h 13m
2026-07-18 DAL1423 MSN → DTW Jul 18, 17:55 UTCJul 18, 19:05 UTC1h 10m
2026-07-18 DAL2628 MSP → SLC Jul 18, 13:20 UTCJul 18, 15:35 UTC2h 15m
2026-07-18 DAL1055 ATL → PBI Jul 18, 06:45 UTCJul 18, 07:20 UTC35m
2026-07-18 DAL1055 ATL → PBI Jul 18, 06:46 UTCJul 18, 11:27 UTC4h 41m
2026-07-18 DAL1055 ATL → PBI Jul 18, 00:04 UTCJul 18, 05:20 UTC5h 16m
2026-07-17 DAL2208 - Jul 17, 19:00 UTCJul 17, 21:44 UTC2h 45m
2026-07-17 DAL2208 MSP → PHX Jul 17, 14:39 UTCJul 17, 17:15 UTC2h 35m

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 N944DZ page for operator, model, and routing details .

Mode-S AD1C67 frequently asked

What is Mode-S code AD1C67?
AD1C67 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N944DZ.
Where is Mode-S AD1C67 registered?
Mode-S code AD1C67 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 AD1C67 broadcasting right now?
Mode-S AD1C67 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD1C67, octal 53216147, decimal 11,344,999.
What flights does AD1C67 operate?
Mode-S AD1C67 has broadcast 20 distinct callsigns, including DAL2208, DAL1055, DAL902, DAL2221, DAL2205.