sensors Mode-S transponder

A83951

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N629SW · BOEING 737-300 · operated by EASTERN 737 ASSET HOLDINGS LLC

Hex
A83951
Octal
52034521
Decimal
11,024,721
Country
US
Tail
N629SW
Type
B733
No current signal · last broadcast 4h ago
Flights observed
73
Distinct callsigns
20
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A83951.

Country allocation

The ICAO 24-bit address A83951 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
TYSON46 - 7 2026-07-06
TYSON54 - 4 2026-05-23
TYSON45 - 4 2026-06-26
BBQ9044 - 3 2026-07-14
BBQ8296 - 3 2026-07-04
BBQ8281 - 3 2026-07-11
BBQ9045 - 2 2026-07-13
BBQ9013 - 2 2026-06-15
BBQ3045 - 2 2026-07-11
BBQ9913 - 1 2026-05-14
BBQ9860 - 1 2026-05-23
BBQ9701 - 1 2026-06-01
BBQ9229 - 1 2026-06-23
BBQ9031 - 1 2026-06-19
BBQ9030 - 1 2026-06-18
BBQ9029 - 1 2026-06-05
BBQ9028 - 1 2026-06-04
BBQ9027 - 1 2026-06-03
BBQ9025 - 1 2026-05-28
BBQ9024 - 1 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 BBQ9044 - Jul 14, 13:00 UTCJul 14, 13:45 UTC45m
2026-07-13 BBQ3043 - Jul 13, 16:45 UTCJul 13, 18:25 UTC1h 40m
2026-07-13 BBQ9045 AUS → DSM Jul 13, 13:05 UTCJul 13, 15:05 UTC2h 0m
2026-07-12 BBQ3044 - Jul 12, 15:30 UTCJul 12, 17:45 UTC2h 15m
2026-07-11 BBQ9044 - Jul 11, 23:30 UTCJul 12, 14:10 UTC14h 40m
2026-07-11 BBQ8281 - Jul 11, 21:25 UTCJul 11, 22:25 UTC1h 0m
2026-07-11 BBQ3045 - Jul 11, 18:30 UTCJul 11, 19:50 UTC1h 20m
2026-07-11 BBQ3045 - Jul 11, 09:40 UTCJul 11, 11:50 UTC2h 10m
2026-07-11 BBQ9045 - Jul 11, 03:25 UTCJul 11, 05:31 UTC2h 5m
2026-07-06 TYSON46 - Jul 6, 23:30 UTCJul 7, 01:45 UTC2h 15m
2026-07-06 TYSON46 - Jul 6, 04:35 UTCJul 6, 21:55 UTC17h 20m
2026-07-05 TYSON46 - Jul 5, 22:15 UTCJul 6, 02:45 UTC4h 30m
2026-07-05 TYSON46 - Jul 5, 17:10 UTCJul 5, 19:40 UTC2h 30m
2026-07-04 TYSON46 - Jul 4, 19:00 UTCJul 5, 18:15 UTC23h 15m
2026-07-04 BBQ8296 - Jul 4, 16:50 UTCJul 4, 17:50 UTC1h 0m
2026-07-03 BBQ8281 - Jul 3, 20:20 UTCJul 4, 15:25 UTC19h 5m
2026-07-03 BBQ8281 - Jul 3, 18:50 UTCJul 4, 15:25 UTC20h 35m
2026-07-03 BBQ8280 - Jul 3, 14:55 UTCJul 3, 17:20 UTC2h 25m
2026-07-01 BBQ8296 - Jul 1, 19:55 UTCJul 1, 20:05 UTC10m
2026-07-01 BBQ8296 - Jul 1, 17:30 UTCJul 1, 19:20 UTC1h 50m
2026-07-01 BBQ8295 - Jul 1, 13:30 UTCJul 1, 16:05 UTC2h 35m
2026-06-29 BBQ8292 - Jun 29, 19:15 UTCJun 29, 22:55 UTC3h 40m
2026-06-29 BBQ8291 - Jun 29, 14:09 UTCJun 29, 17:34 UTC3h 25m
2026-06-27 BBQ8287 - Jun 27, 19:39 UTCJun 27, 20:59 UTC1h 20m
2026-06-27 BBQ8286 - Jun 27, 17:34 UTCJun 27, 18:29 UTC55m
2026-06-27 BBQ8285 - Jun 27, 14:54 UTCJun 27, 15:39 UTC45m
2026-06-26 TYSON45 - Jun 26, 01:20 UTCJun 26, 02:09 UTC50m
2026-06-25 TYSON45 BFL → AZA Jun 25, 23:09 UTCJun 26, 00:20 UTC1h 10m
2026-06-25 TYSON45 SLC → BFL Jun 25, 19:20 UTCJun 25, 20:54 UTC1h 35m
2026-06-25 TYSON45 - Jun 25, 15:59 UTCJun 25, 17:44 UTC1h 45m
2026-06-24 TYSON46 - Jun 24, 14:29 UTCJun 24, 20:14 UTC5h 45m
2026-06-23 TYSON46 - Jun 23, 21:54 UTCJun 23, 22:49 UTC55m
2026-06-23 BBQ9229 - Jun 23, 13:24 UTCJun 23, 15:04 UTC1h 40m
2026-06-22 BBQ9007 - Jun 22, 03:05 UTCJun 22, 03:50 UTC45m
2026-06-20 BBQ3007 - Jun 20, 23:19 UTCJun 21, 01:14 UTC1h 55m
2026-06-20 BBQ9006 - Jun 20, 20:00 UTCJun 20, 21:19 UTC1h 20m
2026-06-20 BBQ3006 - Jun 20, 16:24 UTCJun 20, 18:34 UTC2h 10m
2026-06-19 BBQ9031 - Jun 19, 14:34 UTCJun 19, 15:59 UTC1h 25m
2026-06-18 BBQ3030 - Jun 18, 22:05 UTCJun 19, 00:59 UTC2h 54m
2026-06-18 BBQ9030 - Jun 18, 14:40 UTCJun 18, 17:40 UTC3h 0m
2026-06-15 BBQ9013 - Jun 15, 16:40 UTCJun 15, 17:25 UTC45m
2026-06-14 BBQ3028 - Jun 14, 20:10 UTCJun 14, 22:00 UTC1h 50m
2026-06-14 BBQ9013 - Jun 14, 16:55 UTCJun 14, 17:40 UTC45m
2026-06-14 BBQ3012 - Jun 14, 12:30 UTCJun 14, 14:30 UTC2h 0m
2026-06-13 BBQ9012 BFM → MSY Jun 13, 04:20 UTCJun 13, 04:55 UTC35m
2026-06-13 BBQ3011 - Jun 13, 00:40 UTCJun 13, 02:50 UTC2h 10m
2026-06-12 BBQ9001 - Jun 12, 20:40 UTCJun 12, 23:00 UTC2h 20m
2026-06-08 BBQ9005 - Jun 8, 00:45 UTCJun 8, 01:05 UTC20m
2026-06-07 BBQ3005 - Jun 7, 22:05 UTCJun 7, 23:40 UTC1h 35m
2026-06-07 BBQ9044 - Jun 7, 19:05 UTCJun 7, 20:55 UTC1h 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 N629SW page for operator, model, and routing details .

Mode-S A83951 frequently asked

What is Mode-S code A83951?
A83951 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N629SW.
Where is Mode-S A83951 registered?
Mode-S code A83951 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 A83951 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A83951, octal 52034521, decimal 11,024,721.
What flights does A83951 operate?
Mode-S A83951 has broadcast 20 distinct callsigns, including TYSON46, TYSON54, TYSON45, BBQ9044, BBQ8296.