sensors Mode-S transponder

ABC649

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N858NN · BOEING 737-800 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
ABC649
Octal
52743111
Decimal
11,257,417
Country
US
Tail
N858NN
Type
B738
Broadcasting now · callsign AAL2571 · 17,875 ft
Flights observed
257
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

ABC649 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ABC649 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AAL1848 SFO → DFW May 29, 22:35 UTCMay 30, 00:05 UTC1h 30m
2026-05-29 AAL2250 BOS → CLT May 29, 18:30 UTCMay 29, 20:30 UTC2h 0m
2026-05-29 AAL2250 BOS → CLT May 29, 15:45 UTCMay 29, 17:20 UTC1h 35m
2026-05-29 AAL3185 PHX → SFO May 29, 12:15 UTCMay 29, 14:20 UTC2h 5m
2026-05-29 AAL2008 ORD → SJD May 29, 02:30 UTCMay 29, 05:05 UTC2h 35m
2026-05-29 AAL2008 ORD → SJD May 29, 02:26 UTCMay 29, 04:59 UTC2h 33m
2026-05-28 AAL1612 DCA → DFW May 28, 21:39 UTCMay 28, 23:44 UTC2h 5m
2026-05-28 AAL1612 DCA → DFW May 28, 21:40 UTCMay 28, 23:40 UTC2h 0m
2026-05-28 AAL1675 LAX → PHX May 28, 18:40 UTCMay 28, 20:00 UTC1h 20m
2026-05-28 AAL1675 LAX → PHX May 28, 18:37 UTCMay 28, 19:56 UTC1h 19m
2026-05-28 AAL2933 EWR → MIA May 28, 13:20 UTCMay 28, 16:15 UTC2h 55m
2026-05-28 AAL2933 EWR → MIA May 28, 13:20 UTCMay 28, 16:59 UTC3h 39m
2026-05-28 AAL1317 CMH → PHL May 28, 03:00 UTCMay 28, 06:30 UTC3h 30m
2026-05-27 AAL1893 CLT → LGA May 27, 23:05 UTCMay 28, 00:50 UTC1h 45m
2026-05-27 AAL1828 DFW → AUS May 27, 18:35 UTCMay 27, 21:30 UTC2h 55m
2026-05-27 AAL1828 DFW → AUS May 27, 18:28 UTCMay 27, 21:27 UTC2h 59m
2026-05-27 AAL1828 DFW → AUS May 27, 14:30 UTCMay 27, 17:15 UTC2h 45m
2026-05-27 AAL2770 ATL → DFW May 27, 10:13 UTCMay 27, 12:04 UTC1h 51m
2026-05-27 AAL2770 ATL → DFW May 27, 10:15 UTCMay 27, 12:05 UTC1h 50m
2026-05-27 AAL1045 DFW → DSM May 27, 00:25 UTCMay 27, 01:44 UTC1h 20m
2026-05-27 AAL1045 DFW → DSM May 27, 00:21 UTCMay 27, 01:44 UTC1h 23m
2026-05-26 AAL2171 TPA → PHL May 26, 17:15 UTCMay 26, 22:29 UTC5h 15m
2026-05-25 AAL3227 PHX → SFO May 25, 23:35 UTCMay 26, 14:55 UTC15h 20m
2026-05-25 AAL2664 PIT → DFW May 25, 19:35 UTCMay 25, 21:45 UTC2h 10m
2026-05-25 AAL1624 PHL → LAS May 25, 15:50 UTCMay 25, 18:10 UTC2h 20m
2026-05-25 AAL1095 MFE → DFW May 25, 12:05 UTCMay 25, 13:15 UTC1h 10m
2026-05-25 AAL485 JFK → MIA May 25, 03:35 UTCMay 25, 04:40 UTC1h 5m
2026-05-25 AAL485 JFK → MIA May 25, 03:33 UTCMay 25, 04:39 UTC1h 6m
2026-05-24 AAL2060 SJU → PHL May 24, 21:00 UTCMay 24, 23:46 UTC2h 46m
2026-05-24 AAL2060 SJU → PHL May 24, 20:23 UTCMay 25, 00:45 UTC4h 22m
2026-05-24 AAL1383 MIA → LIR May 24, 16:40 UTCMay 24, 18:25 UTC1h 45m
2026-05-24 AAL1383 MIA → LIR May 24, 16:39 UTCMay 24, 18:59 UTC2h 20m
2026-05-24 AAL3154 DFW → CMH May 24, 12:30 UTCMay 24, 14:20 UTC1h 50m
2026-05-23 AAL2657 SEA → DFW May 23, 23:55 UTCMay 24, 01:50 UTC1h 55m
2026-05-23 AAL2657 SEA → DFW May 23, 23:50 UTCMay 24, 02:04 UTC2h 14m
2026-05-23 AAL1338 LIR → MIA May 23, 19:20 UTCMay 23, 21:44 UTC2h 24m
2026-05-23 AAL887 BNA → PHL May 23, 14:10 UTCMay 23, 21:45 UTC7h 36m
2026-05-23 AAL2938 EWR → PHX May 23, 10:35 UTCMay 23, 12:10 UTC1h 35m
2026-05-23 AAL635 MIA → ORD May 23, 00:55 UTCMay 23, 04:35 UTC3h 39m
2026-05-22 AAL2883 JFK → MTY May 22, 20:35 UTCMay 22, 23:25 UTC2h 50m
2026-05-22 AAL764 LAX → PVR May 22, 16:30 UTCMay 22, 22:15 UTC5h 45m
2026-05-22 AAL598 MSY → MIA May 22, 10:45 UTCMay 22, 14:40 UTC3h 55m
2026-05-22 AAL635 MIA → ORD May 22, 02:05 UTCMay 22, 05:40 UTC3h 35m
2026-05-21 AAL1669 MSY → DCA May 21, 21:55 UTCMay 22, 00:45 UTC2h 50m
2026-05-21 AAL1164 LGA → STL May 21, 18:35 UTCMay 21, 20:00 UTC1h 25m
2026-05-21 AAL1830 DFW → SEA May 21, 14:28 UTCMay 21, 16:35 UTC2h 7m
2026-05-21 AAL1830 DFW → SEA May 21, 14:30 UTCMay 21, 15:50 UTC1h 20m
2026-05-20 AAL2507 ORD → MIA May 20, 23:30 UTCMay 21, 02:00 UTC2h 30m
2026-05-20 AAL2507 ORD → MIA May 20, 19:55 UTCMay 20, 22:25 UTC2h 30m
2026-05-20 AAL928 MGA → MIA May 20, 17:05 UTCMay 20, 18:25 UTC1h 20m

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 N858NN page for operator, model, and routing details .

Mode-S ABC649 frequently asked

What is Mode-S code ABC649?
ABC649 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N858NN.
Where is Mode-S ABC649 registered?
Mode-S code ABC649 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 ABC649 broadcasting right now?
Yes. Mode-S ABC649 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABC649, octal 52743111, decimal 11,257,417.
What flights does ABC649 operate?
Mode-S ABC649 has broadcast 20 distinct callsigns, including AAL928, AAL607, AAL2225, AAL1230, AAL2863.