Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A3B268

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N33714 · BOEING 737-700 · operated by UNITED AIRLINES INC

Hex
A3B268
Octal
50731150
Decimal
10,728,040
Country
US
Tail
N33714
Type
B737
Broadcasting now · callsign UAL1365 · 25,975 ft
Flights observed
456
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:50 UTC

Current position

A3B268 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3B268 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
UAL1513 United Airlines 9 2026-06-04
UAL2465 United Airlines 6 2026-07-21
UAL497 - 5 2026-07-04
UAL1860 - 5 2026-07-01
UAL1050 United Airlines 5 2026-06-04
UAL764 United Airlines 4 2026-05-20
UAL661 United Airlines 4 2026-07-22
UAL241 United Airlines 4 2026-05-25
UAL2344 - 4 2026-06-26
UAL2063 United Airlines 4 2026-07-21
UAL1861 - 4 2026-07-01
UAL1478 United Airlines 4 2026-05-26
UAL1201 - 4 2026-07-01
UAL1200 - 4 2026-07-01
UAL641 - 3 2026-06-23
UAL576 United Airlines 3 2026-07-20
UAL490 - 3 2026-06-19
UAL3880 United Airlines 3 2026-05-09
UAL365 - 3 2026-06-24
UAL343 - 3 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL1265 DEN → SFO Jul 26, 15:40 UTCJul 26, 20:40 UTC5h 0m
2026-07-26 UAL308 ATL → EWR Jul 26, 01:22 UTCJul 26, 04:49 UTC3h 27m
2026-07-26 UAL308 ATL → EWR Jul 26, 01:20 UTCJul 26, 04:50 UTC3h 30m
2026-07-25 UAL1884 EWR → RSW Jul 25, 22:25 UTCJul 25, 23:45 UTC1h 20m
2026-07-25 UAL1928 IAH → MSY Jul 25, 19:55 UTCJul 25, 20:50 UTC55m
2026-07-25 UAL1928 IAH → MSY Jul 25, 19:45 UTCJul 25, 20:46 UTC1h 1m
2026-07-25 UAL1862 ORD → PUJ Jul 25, 13:30 UTCJul 25, 17:00 UTC3h 30m
2026-07-25 UAL1862 ORD → PUJ Jul 25, 13:17 UTCJul 25, 16:39 UTC3h 22m
2026-07-25 UAL768 RDU → EWR Jul 25, 01:40 UTCJul 25, 05:25 UTC3h 45m
2026-07-24 UAL1884 EWR → RSW Jul 24, 22:15 UTCJul 24, 23:30 UTC1h 15m
2026-07-24 UAL1928 IAH → MSY Jul 24, 19:45 UTCJul 24, 20:45 UTC1h 0m
2026-07-24 UAL374 EWR → PBI Jul 24, 16:15 UTCJul 24, 17:45 UTC1h 30m
2026-07-24 UAL374 EWR → PBI Jul 24, 16:12 UTCJul 24, 17:28 UTC1h 16m
2026-07-24 UAL382 IAH → SAT Jul 24, 13:10 UTCJul 24, 14:40 UTC1h 30m
2026-07-23 UAL2072 EWR → ATL Jul 23, 22:45 UTCJul 24, 01:25 UTC2h 40m
2026-07-23 UAL1955 IAD → PHX Jul 23, 18:35 UTCJul 23, 21:35 UTC3h 0m
2026-07-23 UAL1448 SAN → SFO Jul 23, 14:20 UTCJul 23, 16:00 UTC1h 40m
2026-07-23 UAL1890 LAX → EWR Jul 23, 11:30 UTCJul 23, 12:40 UTC1h 10m
2026-07-22 UAL554 EWR → DFW Jul 22, 23:45 UTCJul 23, 00:45 UTC1h 0m
2026-07-22 UAL554 EWR → DFW Jul 22, 23:19 UTCJul 23, 00:43 UTC1h 24m
2026-07-22 UAL2172 IAH → PHL Jul 22, 20:55 UTCJul 22, 22:05 UTC1h 10m
2026-07-22 UAL661 ORD → EWR Jul 22, 14:10 UTCJul 22, 18:50 UTC4h 40m
2026-07-22 UAL308K ORD → SNA Jul 22, 01:25 UTCJul 22, 05:00 UTC3h 35m
2026-07-21 UAL291 CLT → EWR Jul 21, 21:00 UTCJul 21, 23:30 UTC2h 30m
2026-07-21 UAL2631 ORD → MCI Jul 21, 15:55 UTCJul 21, 17:35 UTC1h 40m
2026-07-21 UAL2465 IAD → PWM Jul 21, 13:05 UTCJul 21, 14:30 UTC1h 25m
2026-07-21 UAL2063 PHL → ORD Jul 21, 02:10 UTCJul 21, 03:10 UTC1h 0m
2026-07-20 UAL2860 LGA → DEN Jul 20, 22:20 UTCJul 21, 00:00 UTC1h 39m
2026-07-20 UAL1746 LIH → SFO Jul 20, 19:45 UTCJul 20, 21:10 UTC1h 25m
2026-07-20 UAL576 MIA → DEN Jul 20, 17:50 UTCJul 20, 18:20 UTC30m
2026-07-20 UAL576 MIA → DEN Jul 20, 16:45 UTCJul 20, 17:55 UTC1h 10m
2026-07-20 UAL576 MIA → DEN Jul 20, 16:49 UTCJul 20, 17:31 UTC42m
2026-07-20 UAL2805 - Jul 20, 14:35 UTCJul 20, 15:30 UTC55m
2026-07-20 UAL2218 SJU → EWR Jul 20, 11:10 UTCJul 20, 12:15 UTC1h 5m
2026-07-19 UAL1946 - Jul 19, 23:30 UTCJul 20, 00:35 UTC1h 5m
2026-07-19 UAL2357 JAC → ORD Jul 19, 18:47 UTCJul 19, 21:00 UTC2h 13m
2026-07-19 UAL307 ORD → ORD Jul 19, 15:10 UTCJul 19, 21:10 UTC6h 0m
2026-07-19 UAL2684 PHL → ORD Jul 19, 10:55 UTCJul 19, 12:35 UTC1h 40m
2026-07-19 UAL1557 - Jul 19, 00:35 UTCJul 19, 01:55 UTC1h 20m
2026-07-18 UAL1888 LAX → EWR Jul 18, 18:45 UTCJul 18, 21:00 UTC2h 15m
2026-07-18 UAL1888 LAX → EWR Jul 18, 18:17 UTCJul 18, 20:41 UTC2h 24m
2026-07-18 UAL519 DEN → SFO Jul 18, 15:50 UTCJul 18, 17:20 UTC1h 30m
2026-07-17 UAL2072 EWR → ATL Jul 17, 23:55 UTCJul 18, 02:45 UTC2h 50m
2026-07-17 UAL1955 ORD → SLC Jul 17, 18:19 UTCJul 17, 21:20 UTC3h 0m
2026-07-16 UAL2612 EWR → ORD Jul 16, 22:30 UTCJul 17, 16:19 UTC17h 50m
2026-07-16 UAL2186 - Jul 16, 15:45 UTCJul 16, 20:29 UTC4h 45m
2026-07-16 UAL1690 - Jul 16, 00:00 UTCJul 16, 04:45 UTC4h 45m
2026-07-15 UAL1076 BOS → EWR Jul 15, 19:05 UTCJul 15, 19:55 UTC50m
2026-07-15 UAL1076 BOS → EWR Jul 15, 18:46 UTCJul 15, 19:51 UTC1h 5m
2026-07-15 UAL1669 EWR → BOS Jul 15, 16:21 UTCJul 15, 16:50 UTC29m

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 N33714 page for operator, model, and routing details .

Mode-S A3B268 frequently asked

What is Mode-S code A3B268?
A3B268 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N33714.
Where is Mode-S A3B268 registered?
Mode-S code A3B268 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 A3B268 broadcasting right now?
Yes. Mode-S A3B268 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3B268, octal 50731150, decimal 10,728,040.
What flights does A3B268 operate?
Mode-S A3B268 has broadcast 20 distinct callsigns, including UAL1513, UAL2465, UAL497, UAL1860, UAL1050.