Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A0B7B8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N14504 · AIRBUS A-321neo · operated by UNITED AIRLINES INC

Hex
A0B7B8
Octal
50133670
Decimal
10,532,792
Country
US
Tail
N14504
Type
A21N
Broadcasting now · callsign UAL1023 · 6,625 ft
Flights observed
432
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:55 UTC

Current position

A0B7B8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A0B7B8 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
UAL2613 United Airlines 8 2026-07-21
UAL1568 United Airlines 7 2026-07-17
UAL706 - 6 2026-07-05
UAL2494 - 6 2026-06-15
UAL2088 United Airlines 5 2026-05-18
UAL1801 - 5 2026-07-02
UAL1525 - 5 2026-07-08
UAL1332 - 5 2026-06-22
UAL660 United Airlines 4 2026-07-25
UAL353 United Airlines 4 2026-05-17
UAL2802 - 4 2026-07-08
UAL2481 United Airlines 4 2026-06-13
UAL2354 United Airlines 4 2026-06-11
UAL2071 United Airlines 4 2026-06-03
UAL1996 United Airlines 4 2026-05-18
UAL1974 - 4 2026-07-07
UAL1792 United Airlines 4 2026-07-19
UAL1775 United Airlines 4 2026-06-08
UAL1740 - 4 2026-06-15
UAL1565 United Airlines 4 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL1424 ORD → AUS Jul 26, 18:20 UTCJul 26, 20:45 UTC2h 25m
2026-07-26 UAL1450 EWR → PBI Jul 26, 14:50 UTCJul 26, 16:40 UTC1h 50m
2026-07-26 UAL1450 EWR → PBI Jul 26, 14:52 UTCJul 26, 16:40 UTC1h 48m
2026-07-25 UAL1585 SFO → PVR Jul 25, 23:45 UTCJul 26, 01:40 UTC1h 55m
2026-07-25 UAL1585 SFO → PVR Jul 25, 23:41 UTCJul 26, 01:40 UTC1h 59m
2026-07-25 UAL1565 SFO → PHX Jul 25, 19:45 UTCJul 25, 21:40 UTC1h 55m
2026-07-25 UAL660 EWR → CHS Jul 25, 14:30 UTCJul 25, 18:00 UTC3h 30m
2026-07-25 UAL1850 IAH → SFO Jul 25, 08:40 UTCJul 25, 12:20 UTC3h 40m
2026-07-25 UAL1850 IAH → SFO Jul 25, 08:45 UTCJul 25, 12:10 UTC3h 25m
2026-07-25 UAL2123 AUS → SFO Jul 25, 04:00 UTCJul 25, 06:20 UTC2h 20m
2026-07-24 UAL800 EWR → MCO Jul 24, 21:05 UTCJul 25, 01:05 UTC4h 0m
2026-07-24 UAL1232 EWR → ORD Jul 24, 16:10 UTCJul 24, 19:40 UTC3h 30m
2026-07-24 UAL1889 SFO → IND Jul 24, 12:45 UTCJul 24, 14:40 UTC1h 55m
2026-07-24 UAL2132 MSP → EWR Jul 24, 02:25 UTCJul 24, 04:25 UTC2h 0m
2026-07-23 UAL746 SRQ → EWR Jul 23, 20:30 UTCJul 23, 23:50 UTC3h 20m
2026-07-23 UAL789 EWR → CLT Jul 23, 15:40 UTCJul 23, 18:40 UTC3h 0m
2026-07-23 UAL2643 DEN → BOS Jul 23, 11:45 UTCJul 23, 13:35 UTC1h 50m
2026-07-23 UAL475 EWR → MCO Jul 23, 03:25 UTCJul 23, 05:15 UTC1h 50m
2026-07-23 UAL475 EWR → MCO Jul 23, 03:20 UTCJul 23, 05:09 UTC1h 49m
2026-07-22 UAL484 DEN → LAS Jul 22, 22:45 UTCJul 23, 01:05 UTC2h 20m
2026-07-22 UAL1599 MSY → IAD Jul 22, 17:45 UTCJul 22, 19:40 UTC1h 55m
2026-07-22 UAL647 BOS → DEN Jul 22, 12:00 UTCJul 22, 16:15 UTC4h 15m
2026-07-22 UAL647 BOS → DEN Jul 22, 12:02 UTCJul 22, 16:15 UTC4h 13m
2026-07-21 UAL597 EWR → LAS Jul 21, 23:05 UTCJul 22, 02:15 UTC3h 10m
2026-07-21 UAL2455 EWR → ATL Jul 21, 16:15 UTCJul 21, 20:10 UTC3h 55m
2026-07-21 UAL2613 DEN → EWR Jul 21, 02:30 UTCJul 21, 05:40 UTC3h 10m
2026-07-20 UAL540 PDX → DEN Jul 20, 21:25 UTCJul 20, 23:35 UTC2h 10m
2026-07-20 UAL1506 SFO → ORD Jul 20, 16:50 UTCJul 20, 18:45 UTC1h 55m
2026-07-20 UAL459 ORD → LAS Jul 20, 12:10 UTCJul 20, 14:10 UTC2h 0m
2026-07-20 UAL498 DEN → PDX Jul 20, 02:30 UTCJul 20, 04:40 UTC2h 10m
2026-07-19 UAL2845 MCO → DEN Jul 19, 20:10 UTCJul 19, 23:15 UTC3h 5m
2026-07-19 UAL2292 DEN → MCO Jul 19, 14:35 UTCJul 19, 18:00 UTC3h 25m
2026-07-19 UAL1792 IAH → EWR Jul 19, 06:05 UTCJul 19, 09:30 UTC3h 25m
2026-07-19 UAL2613 DEN → EWR Jul 19, 00:55 UTCJul 19, 04:00 UTC3h 5m
2026-07-19 UAL2613 DEN → EWR Jul 19, 00:33 UTCJul 19, 04:02 UTC3h 29m
2026-07-18 UAL540 PDX → DEN Jul 18, 20:50 UTCJul 18, 22:55 UTC2h 5m
2026-07-18 UAL8206 DEN → SFO Jul 18, 16:35 UTCJul 18, 18:40 UTC2h 5m
2026-07-18 UAL459 ORD → LAS Jul 18, 12:45 UTCJul 18, 14:50 UTC2h 5m
2026-07-18 UAL498 DEN → PDX Jul 18, 02:00 UTCJul 18, 04:05 UTC2h 6m
2026-07-17 UAL2769 ORD → DEN Jul 17, 21:45 UTCJul 17, 23:44 UTC1h 59m
2026-07-17 UAL2769 ORD → DEN Jul 17, 21:55 UTCJul 17, 23:50 UTC1h 55m
2026-07-17 UAL1568 ORD → SFO Jul 17, 15:40 UTCJul 17, 19:30 UTC3h 50m
2026-07-17 UAL1568 ORD → SFO Jul 17, 15:37 UTCJul 17, 19:24 UTC3h 47m
2026-07-17 UAL1389 DEN → SFO Jul 17, 02:45 UTCJul 17, 05:10 UTC2h 25m
2026-07-16 UAL2845 MCO → DEN Jul 16, 20:05 UTCJul 16, 23:20 UTC3h 15m
2026-07-16 UAL2292 DEN → MCO Jul 16, 14:20 UTCJul 16, 17:35 UTC3h 15m
2026-07-16 UAL1197 EWR → DEN Jul 16, 05:15 UTCJul 16, 08:45 UTC3h 30m
2026-07-16 UAL2329 ORD → EWR Jul 16, 01:10 UTCJul 16, 03:25 UTC2h 15m
2026-07-15 UAL587 - Jul 15, 14:15 UTCJul 15, 17:55 UTC3h 40m
2026-07-14 UAL1107 - Jul 14, 22:20 UTCJul 15, 01:45 UTC3h 24m

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 N14504 page for operator, model, and routing details .

Mode-S A0B7B8 frequently asked

What is Mode-S code A0B7B8?
A0B7B8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N14504.
Where is Mode-S A0B7B8 registered?
Mode-S code A0B7B8 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 A0B7B8 broadcasting right now?
Yes. Mode-S A0B7B8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0B7B8, octal 50133670, decimal 10,532,792.
What flights does A0B7B8 operate?
Mode-S A0B7B8 has broadcast 20 distinct callsigns, including UAL2613, UAL1568, UAL706, UAL2494, UAL2088.