Apparatus

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sensors Mode-S transponder

A44962

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N37547 · BOEING 737 MAX 9 · operated by UNITED AIRLINES INC

Hex
A44962
Octal
51044542
Decimal
10,766,690
Country
US
Tail
N37547
Type
B39M
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
480
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S A44962.

Country allocation

The ICAO 24-bit address A44962 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
UAL1670 - 6 2026-07-11
UAL367 United Airlines 5 2026-04-18
UAL356 - 5 2026-06-19
UAL2210 United Airlines 5 2026-07-22
UAL1016 United Airlines 5 2026-05-06
UAL413 United Airlines 4 2026-07-18
UAL2863 United Airlines 4 2026-05-08
UAL2665 United Airlines 4 2026-05-03
UAL2223 United Airlines 4 2026-07-23
UAL1987 - 4 2026-07-12
UAL1904 - 4 2026-07-10
UAL1864 United Airlines 4 2026-04-14
UAL1461 - 4 2026-07-11
UAL1400 United Airlines 4 2026-06-07
UAL1276 - 4 2026-07-11
UAL1123 - 4 2026-07-10
UAL1054 - 4 2026-07-10
UAL688 - 3 2026-07-16
UAL676 United Airlines 3 2026-04-16
UAL638 United Airlines 3 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL1468 SAL → IAH Jul 26, 20:10 UTCJul 26, 22:30 UTC2h 20m
2026-07-26 UAL1441 IAH → SAL Jul 26, 15:40 UTCJul 26, 18:00 UTC2h 20m
2026-07-26 UAL2491 SFO → DEN Jul 26, 11:25 UTCJul 26, 13:15 UTC1h 50m
2026-07-25 UAL2777 EWR → TPA Jul 25, 19:35 UTCJul 25, 22:00 UTC2h 25m
2026-07-25 UAL2777 EWR → TPA Jul 25, 19:38 UTCJul 25, 21:52 UTC2h 14m
2026-07-25 UAL1988 CUN → EWR Jul 25, 14:05 UTCJul 25, 17:15 UTC3h 10m
2026-07-24 UAL1020 IAD → EWR Jul 24, 22:20 UTCJul 25, 00:30 UTC2h 10m
2026-07-24 UAL1020 IAD → EWR Jul 24, 22:24 UTCJul 25, 00:37 UTC2h 13m
2026-07-24 UAL2165 EWR → IAH Jul 24, 17:40 UTCJul 24, 20:30 UTC2h 50m
2026-07-24 UAL2309 SAN → SFO Jul 24, 14:00 UTCJul 24, 15:55 UTC1h 55m
2026-07-24 UAL2019 OGG → SFO Jul 24, 03:20 UTCJul 24, 05:20 UTC2h 0m
2026-07-23 UAL2251 EWR → MEX Jul 23, 21:55 UTCJul 24, 01:55 UTC4h 0m
2026-07-23 UAL2251 EWR → MEX Jul 23, 21:56 UTCJul 24, 01:54 UTC3h 58m
2026-07-23 UAL2223 CPT → IAD Jul 23, 19:15 UTCJul 23, 19:20 UTC5m
2026-07-23 UAL2223 CPT → IAD Jul 23, 17:00 UTCJul 23, 19:20 UTC2h 20m
2026-07-23 UAL2223 CPT → IAD Jul 23, 16:44 UTCJul 23, 19:00 UTC2h 16m
2026-07-23 UAL2326 - Jul 23, 12:40 UTCJul 23, 14:45 UTC2h 5m
2026-07-23 UAL1503 ORD → BOS Jul 23, 00:35 UTCJul 23, 03:45 UTC3h 10m
2026-07-22 UAL1660 ANC → EWR Jul 22, 18:50 UTCJul 22, 22:50 UTC4h 0m
2026-07-22 UAL1349 RSW → IAD Jul 22, 14:30 UTCJul 22, 17:00 UTC2h 30m
2026-07-22 UAL2210 SAN → IAH Jul 22, 10:20 UTCJul 22, 11:25 UTC1h 5m
2026-07-21 UAL2372 LGA → IAH Jul 21, 23:25 UTCJul 21, 23:35 UTC10m
2026-07-21 UAL2372 LGA → IAH Jul 21, 23:16 UTCJul 22, 04:02 UTC4h 46m
2026-07-21 UAL2373 LAX → KOA Jul 21, 21:55 UTCJul 21, 22:00 UTC5m
2026-07-21 UAL2373 LAX → KOA Jul 21, 16:50 UTCJul 21, 17:15 UTC25m
2026-07-21 UAL1251 PHX → SFO Jul 21, 13:20 UTCJul 21, 13:55 UTC35m
2026-07-21 UAL1251 PHX → SFO Jul 21, 09:05 UTCJul 21, 09:25 UTC20m
2026-07-21 UAL2390 - Jul 21, 07:05 UTCJul 21, 07:30 UTC25m
2026-07-21 UAL2390 - Jul 21, 02:00 UTCJul 21, 02:30 UTC30m
2026-07-20 UAL1195 DTW → ORD Jul 20, 22:15 UTCJul 21, 00:15 UTC1h 59m
2026-07-20 UAL2168 JAX → IAH Jul 20, 17:55 UTCJul 20, 19:50 UTC1h 55m
2026-07-20 UAL1467 - Jul 20, 12:45 UTCJul 20, 15:10 UTC2h 25m
2026-07-20 UAL1266 - Jul 20, 06:20 UTCJul 20, 10:50 UTC4h 30m
2026-07-19 UAL600 EWR → LAS Jul 19, 22:20 UTCJul 20, 01:50 UTC3h 30m
2026-07-19 UAL2605 - Jul 19, 18:35 UTCJul 19, 19:20 UTC45m
2026-07-19 UAL2807 ORD → ORF Jul 19, 16:30 UTCJul 19, 17:05 UTC35m
2026-07-19 UAL1150 MCO → ORD Jul 19, 11:25 UTCJul 19, 13:50 UTC2h 25m
2026-07-19 UAL2451 - Jul 19, 00:40 UTCJul 19, 02:35 UTC1h 55m
2026-07-18 UAL524 - Jul 18, 19:10 UTCJul 18, 22:45 UTC3h 35m
2026-07-18 UAL1810 - Jul 18, 13:10 UTCJul 18, 16:40 UTC3h 30m
2026-07-18 UAL1810 IAH → PUJ Jul 18, 13:14 UTCJul 18, 17:02 UTC3h 48m
2026-07-18 UAL491 - Jul 18, 08:25 UTCJul 18, 11:10 UTC2h 45m
2026-07-18 UAL413 MCO → EWR Jul 18, 02:19 UTCJul 18, 06:45 UTC4h 26m
2026-07-17 UAL413 MCO → EWR Jul 17, 23:00 UTCJul 18, 00:50 UTC1h 50m
2026-07-17 UAL2071 - Jul 17, 14:24 UTCJul 17, 20:29 UTC6h 5m
2026-07-17 UAL2107 BOS → SFO Jul 17, 01:20 UTCJul 17, 07:00 UTC5h 40m
2026-07-16 UAL688 IAD → BOS Jul 16, 21:49 UTCJul 16, 23:32 UTC1h 43m
2026-07-16 UAL688 IAD → BOS Jul 16, 22:00 UTCJul 16, 23:29 UTC1h 30m
2026-07-16 UAL1742 SMF → IAD Jul 16, 15:19 UTCJul 16, 20:00 UTC4h 40m
2026-07-15 UAL2435 IAD → SMF Jul 15, 22:30 UTCJul 16, 03:15 UTC4h 45m

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 N37547 page for operator, model, and routing details .

Mode-S A44962 frequently asked

What is Mode-S code A44962?
A44962 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N37547.
Where is Mode-S A44962 registered?
Mode-S code A44962 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 A44962 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A44962, octal 51044542, decimal 10,766,690.
What flights does A44962 operate?
Mode-S A44962 has broadcast 20 distinct callsigns, including UAL1670, UAL367, UAL356, UAL2210, UAL1016.