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 3h ago
Flights observed
281
Distinct callsigns
20
Country
US
Last broadcast
3h ago

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
DAL127 - 10 2026-07-09
DAL72 - 9 2026-07-02
DAL228 Delta Air Lines 9 2026-06-06
DAL150 - 9 2026-06-29
DAL75 Delta Air Lines 8 2026-06-12
DAL183 - 8 2026-07-10
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
DAL313 - 6 2026-06-30
DAL230 - 6 2026-07-11
DAL203 - 6 2026-07-03
DAL153 Delta Air Lines 6 2026-06-07
DAL152 Delta Air Lines 6 2026-06-07
DAL9895 Delta Air Lines 5 2026-04-17
DAL958 - 5 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 DAL182 - Jul 13, 21:50 UTCJul 13, 23:30 UTC1h 40m
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
2026-07-07 DAL353 JFK → LAX Jul 7, 20:25 UTCJul 8, 01:45 UTC5h 20m
2026-07-07 DAL129 JFK → BCN Jul 7, 09:30 UTCJul 7, 17:15 UTC7h 45m
2026-07-06 DAL128 BCN → JFK Jul 6, 23:53 UTCJul 7, 07:02 UTC7h 9m
2026-07-06 DAL128 BCN → JFK Jul 6, 23:55 UTCJul 7, 06:45 UTC6h 50m
2026-07-06 DAL157 - Jul 6, 19:05 UTCJul 6, 20:15 UTC1h 10m
2026-07-06 DAL157 - Jul 6, 11:55 UTCJul 6, 12:45 UTC50m
2026-07-06 DAL157 ACC → JFK Jul 6, 10:01 UTCJul 6, 20:02 UTC10h 1m
2026-07-05 DAL156 JFK → ACC Jul 5, 21:56 UTCJul 6, 07:43 UTC9h 47m
2026-07-05 DAL156 - Jul 5, 22:00 UTCJul 5, 22:40 UTC40m
2026-07-04 DAL183 - Jul 4, 08:40 UTCJul 4, 11:10 UTC2h 30m
2026-07-04 DAL183 FCO → JFK Jul 4, 08:37 UTCJul 4, 17:41 UTC9h 4m
2026-07-03 DAL182 JFK → FCO Jul 3, 22:15 UTCJul 4, 06:00 UTC7h 45m
2026-07-03 DAL203 ATH → JFK Jul 3, 08:05 UTCJul 3, 18:10 UTC10h 5m
2026-07-02 DAL202 JFK → ATH Jul 2, 20:45 UTCJul 3, 05:36 UTC8h 51m
2026-07-02 DAL202 - Jul 2, 20:50 UTCJul 2, 22:30 UTC1h 40m
2026-07-02 DAL47 - Jul 2, 09:50 UTCJul 2, 10:45 UTC55m
2026-07-02 DAL47 AMS → JFK Jul 2, 09:46 UTCJul 2, 17:35 UTC7h 49m
2026-07-02 DAL72 - Jul 2, 03:55 UTCJul 2, 05:15 UTC1h 20m
2026-07-01 DAL72 - Jul 1, 21:15 UTCJul 2, 00:20 UTC3h 5m
2026-07-01 DAL309 - Jul 1, 05:50 UTCJul 1, 09:45 UTC3h 55m
2026-07-01 DAL309 - Jul 1, 01:40 UTCJul 1, 02:00 UTC20m
2026-06-30 DAL312 JFK → HNL Jun 30, 23:35 UTCJun 30, 23:50 UTC15m
2026-06-30 DAL312 JFK → HNL Jun 30, 15:40 UTCJun 30, 19:15 UTC3h 35m
2026-06-30 DAL313 - Jun 30, 06:45 UTCJun 30, 10:10 UTC3h 25m
2026-06-30 DAL313 - Jun 30, 02:45 UTCJun 30, 03:05 UTC20m
2026-06-29 DAL837 - Jun 29, 14:34 UTCJun 29, 23:39 UTC9h 5m
2026-06-29 DAL150 - Jun 29, 08:39 UTCJun 29, 11:39 UTC3h 0m
2026-06-29 DAL150 LIM → ATL Jun 29, 05:13 UTCJun 29, 11:35 UTC6h 22m
2026-06-28 DAL151 ATL → LIM Jun 28, 20:26 UTCJun 29, 02:51 UTC6h 25m
2026-06-28 DAL151 - Jun 28, 20:29 UTCJun 28, 23:25 UTC2h 55m
2026-06-27 DAL110 EZE → ATL Jun 27, 23:25 UTCJun 28, 09:10 UTC9h 45m
2026-06-27 DAL101 ATL → EZE Jun 27, 03:20 UTCJun 27, 12:45 UTC9h 25m
2026-06-27 DAL101 ATL → EZE Jun 27, 03:18 UTCJun 27, 12:35 UTC9h 17m
2026-06-26 DAL73 AMS → ATL Jun 26, 09:00 UTCJun 26, 17:50 UTC8h 50m

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 3h ago.
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 DAL127, DAL72, DAL228, DAL150, DAL75.