Apparatus

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sensors Mode-S transponder

A4B470

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N402DX · AIRBUS A-330-900 · operated by BANK OF UTAH TRUSTEE

Hex
A4B470
Octal
51132160
Decimal
10,794,096
Country
US
Tail
N402DX
Type
A339
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
309
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S A4B470.

Country allocation

The ICAO 24-bit address A4B470 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
DAL223 - 10 2026-07-18
DAL144 Delta Air Lines 10 2026-06-05
DAL742 - 9 2026-07-02
DAL67 Delta Air Lines 9 2026-06-24
DAL66 - 9 2026-06-23
DAL3 - 9 2026-07-14
DAL143 Delta Air Lines 9 2026-06-03
DAL227 Delta Air Lines 8 2026-06-11
DAL165 Delta Air Lines 8 2026-06-05
DAL297 Delta Air Lines 7 2026-07-25
DAL296 Delta Air Lines 7 2026-07-24
DAL226 - 7 2026-06-12
DAL164 - 7 2026-07-16
DAL81 Delta Air Lines 6 2026-05-09
DAL49 Delta Air Lines 6 2026-07-07
DAL242 Delta Air Lines 6 2026-06-02
DAL240 - 6 2026-07-17
DAL145 Delta Air Lines 6 2026-05-08
DAL9 - 5 2026-07-14
DAL80 Delta Air Lines 5 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL214 ATL → FCO Jul 26, 20:20 UTCJul 26, 22:00 UTC1h 40m
2026-07-25 DAL297 SPN → NRT Jul 25, 09:42 UTCJul 25, 21:02 UTC11h 20m
2026-07-25 DAL297 SPN → NRT Jul 25, 09:45 UTCJul 25, 12:00 UTC2h 15m
2026-07-24 DAL296 HND → ATL Jul 24, 20:02 UTCJul 25, 06:00 UTC9h 58m
2026-07-24 DAL296 HND → ATL Jul 24, 20:05 UTCJul 25, 06:10 UTC10h 5m
2026-07-23 DAL55 LOS → ATL Jul 23, 11:14 UTCJul 23, 22:22 UTC11h 8m
2026-07-22 DAL54 ATL → LOS Jul 22, 21:25 UTCJul 23, 06:05 UTC8h 40m
2026-07-21 DAL215 FCO → ATL Jul 21, 08:30 UTCJul 21, 11:00 UTC2h 30m
2026-07-21 DAL215 FCO → ATL Jul 21, 08:25 UTCJul 21, 18:24 UTC9h 59m
2026-07-21 DAL215 FCO → ATL Jul 21, 08:25 UTCJul 21, 18:30 UTC10h 5m
2026-07-20 DAL214 ATL → FCO Jul 20, 20:32 UTCJul 21, 05:39 UTC9h 7m
2026-07-20 DAL214 - Jul 20, 20:35 UTCJul 20, 22:00 UTC1h 25m
2026-07-19 DAL110 EZE → ATL Jul 19, 23:15 UTCJul 20, 09:00 UTC9h 45m
2026-07-19 DAL110 EZE → ATL Jul 19, 23:14 UTCJul 20, 08:56 UTC9h 42m
2026-07-19 DAL101 ATL → EZE Jul 19, 03:50 UTCJul 19, 13:15 UTC9h 25m
2026-07-18 DAL223 - Jul 18, 15:55 UTCJul 18, 18:45 UTC2h 50m
2026-07-18 DAL223 - Jul 18, 07:20 UTCJul 18, 15:50 UTC8h 30m
2026-07-17 DAL240 BOS → ATH Jul 17, 20:25 UTCJul 18, 05:00 UTC8h 36m
2026-07-17 DAL59 LHR → BOS Jul 17, 09:10 UTCJul 17, 15:44 UTC6h 35m
2026-07-17 DAL58 BOS → LHR Jul 17, 00:35 UTCJul 17, 07:05 UTC6h 30m
2026-07-16 DAL257 AMS → BOS Jul 16, 14:13 UTCJul 16, 21:25 UTC7h 12m
2026-07-16 DAL257 - Jul 16, 14:15 UTCJul 16, 21:30 UTC7h 15m
2026-07-16 DAL164 MSP → AMS Jul 16, 03:29 UTCJul 16, 11:17 UTC7h 48m
2026-07-16 DAL164 - Jul 16, 03:30 UTCJul 16, 10:00 UTC6h 30m
2026-07-15 DAL299 - Jul 15, 13:05 UTCJul 15, 22:50 UTC9h 45m
2026-07-15 DAL298 - Jul 15, 01:25 UTCJul 15, 04:15 UTC2h 50m
2026-07-15 DAL298 MSP → FCO Jul 15, 01:23 UTCJul 15, 10:21 UTC8h 58m
2026-07-14 DAL9 - Jul 14, 11:45 UTCJul 14, 19:40 UTC7h 55m
2026-07-14 DAL3 JFK → LHR Jul 14, 02:25 UTCJul 14, 09:00 UTC6h 35m
2026-07-14 DAL3 JFK → LHR Jul 14, 02:22 UTCJul 14, 08:51 UTC6h 29m
2026-07-13 DAL213 ATH → JFK Jul 13, 13:12 UTCJul 13, 23:15 UTC10h 3m
2026-07-13 DAL213 ATH → JFK Jul 13, 13:15 UTCJul 13, 23:20 UTC10h 5m
2026-07-13 DAL212 - Jul 13, 01:15 UTCJul 13, 03:01 UTC1h 45m
2026-07-13 DAL212 JFK → ATH Jul 13, 01:15 UTCJul 13, 10:11 UTC8h 56m
2026-07-12 DAL958 LAX → JFK Jul 12, 15:30 UTCJul 12, 20:20 UTC4h 50m
2026-07-12 DAL958 LAX → JFK Jul 12, 15:26 UTCJul 12, 20:12 UTC4h 46m
2026-07-11 DAL707 JFK → LAX Jul 11, 23:40 UTCJul 12, 04:55 UTC5h 15m
2026-07-11 DAL127 MAD → JFK Jul 11, 11:06 UTCJul 11, 18:26 UTC7h 20m
2026-07-11 DAL127 - Jul 11, 11:10 UTCJul 11, 12:15 UTC1h 5m
2026-07-11 DAL126 JFK → MAD Jul 11, 01:38 UTCJul 11, 08:06 UTC6h 28m
2026-07-11 DAL126 - Jul 11, 01:40 UTCJul 11, 03:15 UTC1h 35m
2026-07-09 DAL9893 LIS → JFK Jul 9, 14:20 UTCJul 9, 21:25 UTC7h 5m
2026-07-09 DAL9893 LIS → JFK Jul 9, 14:16 UTCJul 9, 21:23 UTC7h 7m
2026-07-08 DAL272 JFK → LIS Jul 8, 01:35 UTCJul 8, 07:35 UTC6h 0m
2026-07-07 DAL49 AMS → JFK Jul 7, 14:10 UTCJul 7, 21:55 UTC7h 45m
2026-07-07 DAL136 - Jul 7, 02:50 UTCJul 7, 09:55 UTC7h 5m
2026-07-06 DAL137 AMS → DTW Jul 6, 13:05 UTCJul 6, 21:15 UTC8h 10m
2026-07-06 DAL236 TPA → AMS Jul 6, 01:30 UTCJul 6, 09:45 UTC8h 15m
2026-07-05 DAL237 - Jul 5, 13:40 UTCJul 5, 23:15 UTC9h 35m
2026-07-05 DAL136 - Jul 5, 02:45 UTCJul 5, 09:40 UTC6h 55m

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 N402DX page for operator, model, and routing details .

Mode-S A4B470 frequently asked

What is Mode-S code A4B470?
A4B470 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N402DX.
Where is Mode-S A4B470 registered?
Mode-S code A4B470 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 A4B470 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4B470, octal 51132160, decimal 10,794,096.
What flights does A4B470 operate?
Mode-S A4B470 has broadcast 20 distinct callsigns, including DAL223, DAL144, DAL742, DAL67, DAL66.