Apparatus

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sensors Mode-S transponder

AB599B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N830NW · AIRBUS A-330-300 · operated by DELTA AIR LINES INC

Hex
AB599B
Octal
52654633
Decimal
11,229,595
Country
US
Tail
N830NW
Type
A333
No current signal · last broadcast Jul 26, 18:25 UTC
Flights observed
315
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 18:25 UTC

Last known position

Most recent position reported by Mode-S AB599B.

Country allocation

The ICAO 24-bit address AB599B 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
DAL228 Delta Air Lines 10 2026-07-21
DAL183 - 10 2026-07-14
DAL127 - 10 2026-07-09
DAL72 - 9 2026-07-02
DAL150 - 9 2026-06-29
DAL75 Delta Air Lines 8 2026-06-12
DAL152 Delta Air Lines 8 2026-07-22
DAL151 - 8 2026-06-28
DAL128 - 8 2026-07-12
DAL945 Delta Air Lines 7 2026-04-26
DAL47 - 7 2026-07-13
DAL312 Delta Air Lines 7 2026-06-30
DAL182 - 7 2026-07-13
DAL73 - 6 2026-06-26
DAL46 - 6 2026-07-14
DAL313 - 6 2026-06-30
DAL230 - 6 2026-07-11
DAL229 Delta Air Lines 6 2026-07-23
DAL207 Delta Air Lines 6 2026-07-20
DAL203 - 6 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL195 BCN → ATL Jul 26, 09:30 UTCJul 26, 18:20 UTC8h 50m
2026-07-26 DAL195 BCN → ATL Jul 26, 09:25 UTCJul 26, 18:14 UTC8h 49m
2026-07-26 DAL250 ICN → SEA Jul 26, 00:20 UTCJul 26, 07:05 UTC6h 46m
2026-07-26 DAL250 ICN → SEA Jul 26, 00:16 UTCJul 26, 07:02 UTC6h 46m
2026-07-25 DAL113 FCO → BOS Jul 25, 11:55 UTCJul 25, 20:15 UTC8h 20m
2026-07-25 DAL113 FCO → BOS Jul 25, 11:51 UTCJul 25, 20:11 UTC8h 20m
2026-07-25 DAL206 DTW → FCO Jul 25, 00:55 UTCJul 25, 09:25 UTC8h 30m
2026-07-24 DAL23 MUC → DTW Jul 24, 07:10 UTCJul 24, 16:05 UTC8h 55m
2026-07-23 DAL22 DTW → MUC Jul 23, 20:50 UTCJul 24, 04:30 UTC7h 40m
2026-07-23 DAL229 CDG → CVG Jul 23, 09:05 UTCJul 23, 17:05 UTC8h 0m
2026-07-22 DAL152 JFK → FCO Jul 22, 22:05 UTCJul 23, 00:45 UTC2h 40m
2026-07-22 DAL152 JFK → FCO Jul 22, 22:04 UTCJul 23, 06:12 UTC8h 8m
2026-07-21 DAL228 CVG → CDG Jul 21, 23:00 UTCJul 22, 18:05 UTC19h 5m
2026-07-21 DAL23 MUC → DTW Jul 21, 07:05 UTCJul 21, 16:00 UTC8h 55m
2026-07-20 DAL22 - Jul 20, 21:00 UTCJul 21, 05:05 UTC8h 5m
2026-07-20 DAL207 FCO → DTW Jul 20, 09:05 UTCJul 20, 18:30 UTC9h 25m
2026-07-19 DAL112 BOS → FCO Jul 19, 22:17 UTCJul 20, 05:53 UTC7h 36m
2026-07-19 DAL112 BOS → FCO Jul 19, 22:20 UTCJul 20, 04:45 UTC6h 25m
2026-07-19 DAL277 NCE → BOS Jul 19, 11:55 UTCJul 19, 19:50 UTC7h 55m
2026-07-19 DAL276 BOS → NCE Jul 19, 00:35 UTCJul 19, 07:45 UTC7h 10m
2026-07-18 DAL251 BCN → BOS Jul 18, 13:35 UTCJul 18, 21:05 UTC7h 30m
2026-07-18 DAL194 ATL → BCN Jul 18, 02:19 UTCJul 18, 10:41 UTC8h 22m
2026-07-18 DAL194 ATL → BCN Jul 18, 02:19 UTCJul 18, 04:25 UTC2h 6m
2026-07-17 DAL195 BCN → ATL Jul 17, 10:25 UTCJul 17, 19:40 UTC9h 15m
2026-07-17 DAL250 BOS → BCN Jul 17, 00:16 UTCJul 17, 06:55 UTC6h 39m
2026-07-17 DAL250 - Jul 17, 00:20 UTCJul 17, 06:45 UTC6h 25m
2026-07-16 DAL113 - Jul 16, 11:54 UTCJul 16, 12:44 UTC50m
2026-07-16 DAL113 FCO → BOS Jul 16, 11:54 UTCJul 16, 20:16 UTC8h 22m
2026-07-16 DAL206 - Jul 16, 00:25 UTCJul 16, 09:10 UTC8h 45m
2026-07-15 DAL135 - Jul 15, 09:45 UTCJul 15, 17:25 UTC7h 40m
2026-07-14 DAL46 JFK → AMS Jul 14, 22:56 UTCJul 15, 06:05 UTC7h 9m
2026-07-14 DAL46 JFK → AMS Jul 14, 23:00 UTCJul 15, 06:00 UTC7h 0m
2026-07-14 DAL183 - Jul 14, 08:45 UTCJul 14, 11:35 UTC2h 50m
2026-07-14 DAL183 FCO → JFK Jul 14, 08:42 UTCJul 14, 17:11 UTC8h 29m
2026-07-13 DAL182 - Jul 13, 21:50 UTCJul 14, 05:45 UTC7h 55m
2026-07-13 DAL47 AMS → JFK Jul 13, 08:38 UTCJul 13, 15:56 UTC7h 18m
2026-07-13 DAL47 - Jul 13, 08:40 UTCJul 13, 15:55 UTC7h 15m
2026-07-12 DAL46 JFK → AMS Jul 12, 22:45 UTCJul 13, 05:40 UTC6h 55m
2026-07-12 DAL129 BCN → JFK Jul 12, 11:01 UTCJul 12, 18:55 UTC7h 55m
2026-07-12 DAL128 JFK → BCN Jul 12, 00:25 UTCJul 12, 07:40 UTC7h 15m
2026-07-11 DAL231 - Jul 11, 10:50 UTCJul 11, 19:40 UTC8h 50m
2026-07-11 DAL230 JFK → FCO Jul 11, 00:15 UTCJul 11, 08:08 UTC7h 53m
2026-07-11 DAL230 - Jul 11, 00:15 UTCJul 11, 01:55 UTC1h 40m
2026-07-10 DAL183 - Jul 10, 08:40 UTCJul 10, 17:40 UTC9h 0m
2026-07-10 DAL183 FCO → JFK Jul 10, 08:36 UTCJul 10, 17:31 UTC8h 55m
2026-07-09 DAL182 - Jul 9, 21:40 UTCJul 10, 02:45 UTC5h 5m
2026-07-09 DAL182 JFK → FCO Jul 9, 21:39 UTCJul 10, 05:31 UTC7h 52m
2026-07-09 DAL127 MAD → JFK Jul 9, 11:05 UTCJul 9, 18:35 UTC7h 30m
2026-07-09 DAL126 - Jul 9, 01:35 UTCJul 9, 08:30 UTC6h 55m
2026-07-08 DAL958 LAX → JFK Jul 8, 15:30 UTCJul 8, 20:25 UTC4h 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 N830NW page for operator, model, and routing details .

Mode-S AB599B frequently asked

What is Mode-S code AB599B?
AB599B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N830NW.
Where is Mode-S AB599B registered?
Mode-S code AB599B 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 AB599B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB599B, octal 52654633, decimal 11,229,595.
What flights does AB599B operate?
Mode-S AB599B has broadcast 20 distinct callsigns, including DAL228, DAL183, DAL127, DAL72, DAL150.