Apparatus

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sensors Mode-S transponder

A49951

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N396CM · BOEING 767-300 · operated by CARGO AIRCRAFT MANAGEMENT INC

Hex
A49951
Octal
51114521
Decimal
10,787,153
Country
US
Tail
N396CM
Type
B763
No current signal · last broadcast Jul 25, 20:20 UTC
Flights observed
246
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 20:20 UTC

Last known position

Most recent position reported by Mode-S A49951.

Country allocation

The ICAO 24-bit address A49951 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
AJT5790 Amerijet International 17 2026-05-09
AJT782 Amerijet International 13 2026-05-09
AJT789 Amerijet International 12 2026-05-09
AJT5787 Amerijet International 9 2026-05-10
AJT8641 Amerijet International 8 2026-07-25
AJT8621 Amerijet International 8 2026-07-25
AJT840 - 7 2026-07-02
AJT2787 Amerijet International 7 2026-05-07
AJT8412 - 5 2026-07-09
AJT8643 Amerijet International 4 2026-06-20
AJT854 - 4 2026-06-26
AJT8443 Amerijet International 4 2026-06-18
AJT841 Amerijet International 4 2026-06-04
AJT8344 - 4 2026-07-01
AJT8312 - 4 2026-07-15
AJT826 Amerijet International 4 2026-07-21
AJT8243 Amerijet International 4 2026-06-23
AJT820 Amerijet International 4 2026-05-12
AJT8620 - 3 2026-07-13
AJT8442 - 3 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 AJT8621 MIA → BRU Jul 25, 11:35 UTCJul 25, 20:15 UTC8h 40m
2026-07-25 AJT8641 MIA → SJU Jul 25, 08:35 UTCJul 25, 08:45 UTC10m
2026-07-25 AJT8641 MIA → SJU Jul 25, 06:40 UTCJul 25, 07:00 UTC20m
2026-07-24 AJT8544 SJU → MIA Jul 24, 17:30 UTCJul 24, 23:30 UTC6h 0m
2026-07-24 AJT844 PBM → MIA Jul 24, 14:55 UTCJul 24, 15:20 UTC25m
2026-07-24 AJT844 PBM → MIA Jul 24, 08:20 UTCJul 24, 13:25 UTC5h 5m
2026-07-24 AJT845 MIA → POS Jul 24, 03:35 UTCJul 24, 06:35 UTC3h 0m
2026-07-22 AJT734 KIN → MIA Jul 22, 15:15 UTCJul 23, 00:40 UTC9h 25m
2026-07-22 AJT8313 MIA → SJU Jul 22, 04:15 UTCJul 22, 04:30 UTC15m
2026-07-22 AJT8313 MIA → SJU Jul 22, 02:20 UTCJul 22, 02:35 UTC15m
2026-07-21 AJT826 POS → MIA Jul 21, 16:30 UTCJul 21, 19:55 UTC3h 25m
2026-07-21 AJT827 MIA → BGI Jul 21, 09:40 UTCJul 21, 14:25 UTC4h 45m
2026-07-20 AJT8140 - Jul 20, 05:55 UTCJul 20, 11:45 UTC5h 50m
2026-07-20 AJT8141 SJU → SAP Jul 20, 04:45 UTCJul 20, 04:55 UTC10m
2026-07-20 AJT8141 - Jul 20, 02:50 UTCJul 20, 03:10 UTC20m
2026-07-19 AJT770 SAL → MIA Jul 19, 19:40 UTCJul 19, 21:30 UTC1h 50m
2026-07-19 AJT771 IAH → SDF Jul 19, 15:20 UTCJul 19, 17:20 UTC2h 0m
2026-07-18 AJT8612 SDQ → MIA Jul 18, 10:30 UTCJul 18, 12:10 UTC1h 40m
2026-07-18 AJT8613 MIA → SDQ Jul 18, 07:45 UTCJul 18, 08:00 UTC15m
2026-07-18 AJT8613 MIA → SDQ Jul 18, 04:30 UTCJul 18, 04:50 UTC20m
2026-07-17 AJT750 SAL → MIA Jul 17, 19:49 UTCJul 17, 21:55 UTC2h 5m
2026-07-17 AJT751 MIA → SAL Jul 17, 15:44 UTCJul 17, 17:44 UTC2h 0m
2026-07-17 AJT8546 SJU → MIA Jul 17, 10:40 UTCJul 17, 12:50 UTC2h 10m
2026-07-17 AJT8547 MIA → SJU Jul 17, 06:05 UTCJul 17, 08:20 UTC2h 15m
2026-07-16 AJT740 SAL → MIA Jul 16, 20:29 UTCJul 16, 22:30 UTC2h 0m
2026-07-16 AJT741 - Jul 16, 13:30 UTCJul 16, 15:30 UTC2h 0m
2026-07-16 AJT8442 - Jul 16, 04:25 UTCJul 16, 10:15 UTC5h 50m
2026-07-15 AJT836 - Jul 15, 18:20 UTCJul 16, 01:00 UTC6h 40m
2026-07-15 AJT8312 GUA → MIA Jul 15, 14:00 UTCJul 15, 16:05 UTC2h 5m
2026-07-15 AJT8312 - Jul 15, 07:55 UTCJul 15, 10:50 UTC2h 55m
2026-07-15 AJT8313 - Jul 15, 01:55 UTCJul 15, 03:15 UTC1h 20m
2026-07-14 AJT8212 - Jul 14, 07:30 UTCJul 14, 16:40 UTC9h 10m
2026-07-13 AJT8620 BRU → MIA Jul 13, 12:00 UTCJul 13, 21:35 UTC9h 35m
2026-07-11 AJT8621 - Jul 11, 12:35 UTCJul 11, 21:10 UTC8h 35m
2026-07-11 AJT8641 - Jul 11, 10:00 UTCJul 11, 10:10 UTC10m
2026-07-11 AJT8641 - Jul 11, 08:01 UTCJul 11, 08:20 UTC20m
2026-07-10 AJT732 - Jul 10, 16:25 UTCJul 10, 18:55 UTC2h 30m
2026-07-10 AJT733 - Jul 10, 11:25 UTCJul 10, 14:05 UTC2h 40m
2026-07-09 AJT8412 - Jul 9, 09:40 UTCJul 9, 20:30 UTC10h 50m
2026-07-02 AJT840 - Jul 2, 10:30 UTCJul 2, 20:25 UTC9h 55m
2026-07-02 AJT732 - Jul 2, 01:05 UTCJul 2, 06:25 UTC5h 20m
2026-07-01 AJT8344 MIA → MIA Jul 1, 09:50 UTCJul 1, 20:05 UTC10h 15m
2026-06-30 AJT826 POS → MIA Jun 30, 16:15 UTCJun 30, 18:35 UTC2h 20m
2026-06-30 AJT827 MIA → BGI Jun 30, 09:10 UTCJun 30, 12:05 UTC2h 55m
2026-06-27 AJT764 - Jun 27, 21:29 UTCJun 28, 00:50 UTC3h 20m
2026-06-27 AJT765 - Jun 27, 17:04 UTCJun 27, 18:54 UTC1h 50m
2026-06-26 AJT854 - Jun 26, 07:50 UTCJun 26, 19:39 UTC11h 50m
2026-06-26 AJT740 - Jun 26, 01:54 UTCJun 26, 03:39 UTC1h 45m
2026-06-25 AJT740 - Jun 25, 13:24 UTCJun 25, 21:29 UTC8h 5m
2026-06-25 AJT839 MIA → MGA Jun 25, 02:49 UTCJun 25, 11:15 UTC8h 25m

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 N396CM page for operator, model, and routing details .

Mode-S A49951 frequently asked

What is Mode-S code A49951?
A49951 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N396CM.
Where is Mode-S A49951 registered?
Mode-S code A49951 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 A49951 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 20:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A49951, octal 51114521, decimal 10,787,153.
What flights does A49951 operate?
Mode-S A49951 has broadcast 20 distinct callsigns, including AJT5790, AJT782, AJT789, AJT5787, AJT8641.