Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ABBB2C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N855NW · AIRBUS A-330-200 · operated by DELTA AIR LINES INC

Hex
ABBB2C
Octal
52735454
Decimal
11,254,572
Country
US
Tail
N855NW
Type
A332
No current signal · last broadcast 2h ago
Flights observed
146
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S ABBB2C.

Country allocation

The ICAO 24-bit address ABBB2C 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
DAL107 Delta Air Lines 14 2026-05-24
DAL1 Delta Air Lines 11 2026-05-28
DAL86 Delta Air Lines 10 2026-05-23
DAL51 Delta Air Lines 10 2026-05-28
DAL2 Delta Air Lines 10 2026-05-27
DAL50 Delta Air Lines 9 2026-05-30
DAL14 Delta Air Lines 9 2026-05-22
DAL106 Delta Air Lines 9 2026-05-19
DAL87 Delta Air Lines 8 2026-05-23
DAL15 Delta Air Lines 8 2026-05-21
DAL353 Delta Air Lines 7 2026-05-15
DAL1317 Delta Air Lines 7 2026-04-23
DAL348 Delta Air Lines 6 2026-04-23
DAL22 Delta Air Lines 6 2026-05-17
DAL23 Delta Air Lines 5 2026-05-18
DAL991 Delta Air Lines 3 2026-05-04
DAL979 Delta Air Lines 3 2026-05-16
DAL55 Delta Air Lines 3 2026-04-20
DAL54 Delta Air Lines 3 2026-04-19
DAL1451 Delta Air Lines 2 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 DAL50 SLC → LHR May 30, 00:30 UTCMay 30, 02:45 UTC2h 15m
2026-05-30 DAL50 SLC → LHR May 30, 00:26 UTCMay 30, 09:37 UTC9h 11m
2026-05-28 DAL51 LHR → SLC May 28, 10:20 UTCMay 28, 19:45 UTC9h 25m
2026-05-28 DAL51 LHR → SLC May 28, 10:17 UTCMay 28, 19:42 UTC9h 25m
2026-05-28 DAL1 JFK → LHR May 28, 00:41 UTCMay 28, 07:13 UTC6h 32m
2026-05-28 DAL1 JFK → LHR May 28, 00:45 UTCMay 28, 07:00 UTC6h 15m
2026-05-27 DAL2 LHR → JFK May 27, 12:15 UTCMay 27, 19:05 UTC6h 50m
2026-05-27 DAL50 SLC → LHR May 27, 00:25 UTCMay 27, 09:35 UTC9h 11m
2026-05-26 DAL51 LHR → SLC May 26, 10:25 UTCMay 26, 20:09 UTC9h 45m
2026-05-26 DAL1 JFK → LHR May 26, 00:54 UTCMay 26, 07:29 UTC6h 35m
2026-05-25 DAL2 LHR → JFK May 25, 11:10 UTCMay 25, 12:25 UTC1h 15m
2026-05-25 DAL2 LHR → JFK May 25, 11:07 UTCMay 25, 18:22 UTC7h 15m
2026-05-25 DAL1 JFK → LHR May 25, 01:55 UTCMay 25, 07:40 UTC5h 45m
2026-05-24 DAL107 FRA → JFK May 24, 10:05 UTCMay 24, 11:00 UTC55m
2026-05-24 DAL107 FRA → JFK May 24, 10:05 UTCMay 24, 18:03 UTC7h 58m
2026-05-23 DAL86 DTW → FRA May 23, 23:45 UTCMay 24, 07:20 UTC7h 35m
2026-05-23 DAL86 DTW → FRA May 23, 23:41 UTCMay 24, 07:25 UTC7h 44m
2026-05-23 DAL87 FRA → DTW May 23, 09:25 UTCMay 23, 11:35 UTC2h 10m
2026-05-23 DAL87 FRA → DTW May 23, 09:20 UTCMay 23, 18:07 UTC8h 47m
2026-05-22 DAL14 ATL → FRA May 22, 22:20 UTCMay 23, 06:20 UTC8h 0m
2026-05-21 DAL15 FRA → ATL May 21, 09:15 UTCMay 21, 11:00 UTC1h 45m
2026-05-21 DAL15 FRA → ATL May 21, 09:12 UTCMay 21, 18:49 UTC9h 37m
2026-05-20 DAL14 ATL → FRA May 20, 22:40 UTCMay 21, 06:55 UTC8h 15m
2026-05-20 DAL15 FRA → ATL May 20, 09:10 UTCMay 20, 18:45 UTC9h 35m
2026-05-20 DAL15 FRA → ATL May 20, 09:08 UTCMay 20, 18:42 UTC9h 34m
2026-05-19 DAL106 JFK → FRA May 19, 23:40 UTCMay 20, 06:55 UTC7h 16m
2026-05-19 DAL107 FRA → JFK May 19, 10:15 UTCMay 19, 18:00 UTC7h 45m
2026-05-18 DAL86 DTW → FRA May 18, 23:55 UTCMay 19, 07:40 UTC7h 45m
2026-05-18 DAL23 MUC → DTW May 18, 07:20 UTCMay 18, 16:11 UTC8h 51m
2026-05-18 DAL23 MUC → DTW May 18, 07:20 UTCMay 18, 09:00 UTC1h 40m
2026-05-17 DAL22 DTW → MUC May 17, 20:45 UTCMay 17, 22:50 UTC2h 5m
2026-05-17 DAL22 DTW → MUC May 17, 20:41 UTCMay 18, 04:37 UTC7h 56m
2026-05-17 DAL87 FRA → DTW May 17, 09:20 UTCMay 17, 17:45 UTC8h 25m
2026-05-16 DAL106 JFK → FRA May 16, 22:50 UTCMay 17, 05:55 UTC7h 5m
2026-05-16 DAL106 JFK → FRA May 16, 22:47 UTCMay 17, 05:51 UTC7h 4m
2026-05-16 DAL979 RDU → SLC May 16, 14:55 UTCMay 16, 19:30 UTC4h 35m
2026-05-16 DAL979 RDU → SLC May 16, 14:51 UTCMay 16, 19:27 UTC4h 36m
2026-05-15 DAL353 JFK → LAX May 15, 20:45 UTCMay 16, 02:05 UTC5h 20m
2026-05-15 DAL353 JFK → LAX May 15, 20:45 UTCMay 16, 01:59 UTC5h 14m
2026-05-15 DAL2 LHR → JFK May 15, 11:00 UTCMay 15, 18:25 UTC7h 24m
2026-05-15 DAL1 JFK → LHR May 15, 00:35 UTCMay 15, 06:55 UTC6h 20m
2026-05-14 DAL2 LHR → JFK May 14, 11:10 UTCMay 14, 18:25 UTC7h 15m
2026-05-13 DAL50 SLC → LHR May 13, 23:36 UTCMay 14, 08:52 UTC9h 16m
2026-05-13 DAL50 SLC → LHR May 13, 23:40 UTCMay 14, 01:00 UTC1h 20m
2026-05-13 DAL51 LHR → SLC May 13, 10:40 UTCMay 13, 11:00 UTC20m
2026-05-13 DAL51 LHR → SLC May 13, 10:35 UTCMay 13, 20:43 UTC10h 8m
2026-05-13 DAL51 LHR → SLC May 13, 10:35 UTCMay 13, 20:34 UTC9h 59m
2026-05-13 DAL1 JFK → LHR May 13, 00:36 UTCMay 13, 07:03 UTC6h 27m
2026-05-13 DAL1 JFK → LHR May 13, 00:40 UTCMay 13, 07:25 UTC6h 45m
2026-05-12 DAL2 LHR → JFK May 12, 11:00 UTCMay 12, 17:00 UTC6h 0m

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 N855NW page for operator, model, and routing details .

Mode-S ABBB2C frequently asked

What is Mode-S code ABBB2C?
ABBB2C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N855NW.
Where is Mode-S ABBB2C registered?
Mode-S code ABBB2C 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 ABBB2C broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABBB2C, octal 52735454, decimal 11,254,572.
What flights does ABBB2C operate?
Mode-S ABBB2C has broadcast 20 distinct callsigns, including DAL107, DAL1, DAL86, DAL51, DAL2.