Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A0B7DF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N14518 · operated by UNITED AIRLINES INC

Hex
A0B7DF
Octal
50133737
Decimal
10,532,831
Country
US
Tail
N14518
Type
A21N
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
347
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S A0B7DF.

Country allocation

The ICAO 24-bit address A0B7DF 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
UAL1862 United Airlines 7 2026-06-14
UAL2475 - 5 2026-07-14
UAL1641 - 5 2026-07-11
UAL1356 United Airlines 5 2026-07-25
UAL662 United Airlines 4 2026-07-25
UAL353 - 4 2026-07-13
UAL2835 - 4 2026-07-19
UAL2361 United Airlines 4 2026-06-15
UAL2113 - 4 2026-06-15
UAL2071 United Airlines 4 2026-05-23
UAL1865 United Airlines 4 2026-05-03
UAL1323 United Airlines 4 2026-06-19
UAL1132 - 4 2026-07-07
UAL1100 United Airlines 4 2026-04-23
UAL1007 - 4 2026-07-06
UAL617 United Airlines 3 2026-07-25
UAL530 United Airlines 3 2026-07-24
UAL407 - 3 2026-07-07
UAL356 United Airlines 3 2026-05-21
UAL347 United Airlines 3 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL2297 EWR → LAS Jul 26, 19:20 UTCJul 26, 21:45 UTC2h 25m
2026-07-26 UAL558 HNL → SFO Jul 26, 14:00 UTCJul 26, 17:30 UTC3h 30m
2026-07-25 UAL1974 SFO → LAX Jul 25, 23:50 UTCJul 26, 01:50 UTC2h 0m
2026-07-25 UAL617 DEN → ORD Jul 25, 19:50 UTCJul 25, 22:05 UTC2h 15m
2026-07-25 UAL662 EWR → DFW Jul 25, 13:50 UTCJul 25, 17:40 UTC3h 50m
2026-07-25 UAL1356 SJC → DEN Jul 25, 00:15 UTCJul 25, 03:45 UTC3h 30m
2026-07-24 UAL1411 SFO → EWR Jul 24, 20:10 UTCJul 24, 22:20 UTC2h 10m
2026-07-24 UAL1994 SFO → PDX Jul 24, 14:55 UTCJul 24, 18:45 UTC3h 50m
2026-07-24 UAL530 ELP → ORD Jul 24, 10:30 UTCJul 24, 12:20 UTC1h 50m
2026-07-23 UAL1715 DEN → EWR Jul 23, 22:35 UTCJul 24, 01:40 UTC3h 5m
2026-07-23 UAL1715 DEN → EWR Jul 23, 22:34 UTCJul 24, 01:37 UTC3h 3m
2026-07-23 UAL2802 IAH → DEN Jul 23, 18:50 UTCJul 23, 20:55 UTC2h 5m
2026-07-23 UAL2089 PDX → SFO Jul 23, 11:50 UTCJul 23, 16:15 UTC4h 25m
2026-07-22 UAL695 EWR → CLT Jul 22, 20:15 UTCJul 23, 00:25 UTC4h 10m
2026-07-22 UAL1069 SFO → LAX Jul 22, 14:05 UTCJul 22, 17:35 UTC3h 30m
2026-07-21 UAL745 FLL → DEN Jul 21, 21:55 UTCJul 22, 01:35 UTC3h 40m
2026-07-21 UAL2494 IAH → EWR Jul 21, 16:55 UTCJul 21, 19:45 UTC2h 50m
2026-07-21 UAL1740 - Jul 21, 12:35 UTCJul 21, 15:00 UTC2h 25m
2026-07-20 UAL2487 RSW → EWR Jul 20, 23:30 UTCJul 21, 03:20 UTC3h 49m
2026-07-20 UAL1363 SJC → DEN Jul 20, 18:25 UTCJul 20, 22:00 UTC3h 35m
2026-07-20 UAL2683 ORD → SAN Jul 20, 13:50 UTCJul 20, 16:15 UTC2h 25m
2026-07-19 UAL1382 PHX → EWR Jul 19, 23:25 UTCJul 20, 01:35 UTC2h 10m
2026-07-19 UAL2835 SEA → ORD Jul 19, 18:10 UTCJul 19, 21:40 UTC3h 30m
2026-07-19 UAL2835 SEA → ORD Jul 19, 18:12 UTCJul 19, 21:06 UTC2h 54m
2026-07-19 UAL341 ORD → SEA Jul 19, 12:15 UTCJul 19, 16:05 UTC3h 50m
2026-07-19 UAL1482 SFO → ORD Jul 19, 01:40 UTCJul 19, 05:35 UTC3h 55m
2026-07-18 UAL1812 DEN → SFO Jul 18, 20:05 UTCJul 18, 22:10 UTC2h 5m
2026-07-18 UAL581 ORD → DEN Jul 18, 16:20 UTCJul 18, 18:15 UTC1h 55m
2026-07-18 UAL2631 BOS → ORD Jul 18, 11:35 UTCJul 18, 14:10 UTC2h 35m
2026-07-18 UAL8229 LGA → YYZ Jul 18, 04:10 UTCJul 18, 06:00 UTC1h 50m
2026-07-17 UAL2832 RSW → ORD Jul 17, 22:49 UTCJul 18, 01:39 UTC2h 50m
2026-07-17 UAL2601 RSW → EWR Jul 17, 15:55 UTCJul 17, 19:45 UTC3h 50m
2026-07-16 UAL2667 ORD → PHL Jul 16, 23:35 UTCJul 17, 02:39 UTC3h 5m
2026-07-16 UAL8153 MYR → EWR Jul 16, 18:40 UTCJul 16, 21:35 UTC2h 55m
2026-07-16 UAL2368 - Jul 16, 14:00 UTCJul 16, 15:55 UTC1h 55m
2026-07-15 UAL745 - Jul 15, 21:35 UTCJul 16, 01:05 UTC3h 30m
2026-07-15 UAL2494 RSW → ORD Jul 15, 16:35 UTCJul 15, 19:05 UTC2h 30m
2026-07-15 UAL1740 - Jul 15, 12:40 UTCJul 15, 15:00 UTC2h 20m
2026-07-15 UAL2258 DEN → ORD Jul 15, 01:30 UTCJul 15, 03:35 UTC2h 5m
2026-07-14 UAL2803 ORD → DEN Jul 14, 20:35 UTCJul 14, 22:20 UTC1h 45m
2026-07-14 UAL2475 MCO → ORD Jul 14, 16:45 UTCJul 14, 19:00 UTC2h 15m
2026-07-14 UAL2280 ORD → MCO Jul 14, 13:05 UTCJul 14, 15:15 UTC2h 10m
2026-07-14 UAL368 SFO → ORD Jul 14, 07:20 UTCJul 14, 11:40 UTC4h 20m
2026-07-14 UAL2179 ORD → SFO Jul 14, 01:45 UTCJul 14, 05:35 UTC3h 50m
2026-07-13 UAL2835 SEA → ORD Jul 13, 18:12 UTCJul 13, 21:19 UTC3h 7m
2026-07-13 UAL2835 - Jul 13, 18:15 UTCJul 13, 21:35 UTC3h 20m
2026-07-13 UAL341 ORD → SEA Jul 13, 12:15 UTCJul 13, 15:55 UTC3h 40m
2026-07-13 UAL353 - Jul 13, 05:55 UTCJul 13, 09:35 UTC3h 40m
2026-07-13 UAL1262 - Jul 13, 02:15 UTCJul 13, 04:10 UTC1h 55m
2026-07-12 UAL1354 RSW → DEN Jul 12, 20:05 UTCJul 12, 23:45 UTC3h 40m

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 N14518 page for operator, model, and routing details .

Mode-S A0B7DF frequently asked

What is Mode-S code A0B7DF?
A0B7DF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N14518.
Where is Mode-S A0B7DF registered?
Mode-S code A0B7DF 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 A0B7DF broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0B7DF, octal 50133737, decimal 10,532,831.
What flights does A0B7DF operate?
Mode-S A0B7DF has broadcast 20 distinct callsigns, including UAL1862, UAL2475, UAL1641, UAL1356, UAL662.