Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ABB7F7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N854UA · AIRBUS A-319 · operated by UMB BANK NA TRUSTEE

Hex
ABB7F7
Octal
52733767
Decimal
11,253,751
Country
US
Tail
N854UA
Type
A319
Broadcasting now · callsign UAL265 · 7,625 ft
Flights observed
122
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

ABB7F7 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ABB7F7 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
UAL1536 United Airlines 3 2026-05-06
UAL8141 United Airlines 2 2026-05-14
UAL576 United Airlines 2 2026-05-27
UAL556 United Airlines 2 2026-05-20
UAL499 United Airlines 2 2026-05-20
UAL3940 United Airlines 2 2026-05-17
UAL358 United Airlines 2 2026-05-13
UAL2861 United Airlines 2 2026-05-08
UAL2669 United Airlines 2 2026-05-20
UAL2603 United Airlines 2 2026-05-14
UAL250 United Airlines 2 2026-05-11
UAL249 United Airlines 2 2026-05-03
UAL2483 United Airlines 2 2026-05-22
UAL2465 United Airlines 2 2026-05-02
UAL2232 United Airlines 2 2026-05-08
UAL2160 United Airlines 2 2026-05-13
UAL2066 United Airlines 2 2026-05-04
UAL1928 United Airlines 2 2026-05-07
UAL1836 United Airlines 2 2026-05-09
UAL1592 United Airlines 2 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 UAL1803 CHS → EWR May 29, 21:25 UTCMay 29, 21:45 UTC20m
2026-05-29 UAL1541 IAH → LGA May 29, 18:05 UTCMay 29, 19:55 UTC1h 50m
2026-05-29 UAL456 EWR → SRQ May 29, 14:15 UTCMay 29, 16:05 UTC1h 50m
2026-05-29 UAL387 YVR → LAX May 29, 01:35 UTCMay 29, 03:40 UTC2h 5m
2026-05-28 UAL1592 DEN → BOS May 28, 22:21 UTCMay 29, 00:15 UTC1h 54m
2026-05-28 UAL1592 DEN → BOS May 28, 22:15 UTCMay 29, 00:35 UTC2h 20m
2026-05-28 UAL352 IAD → BOS May 28, 20:00 UTCMay 28, 20:35 UTC35m
2026-05-28 UAL1772 EWR → MYR May 28, 18:05 UTCMay 28, 18:35 UTC30m
2026-05-28 UAL472 SFO → RDU May 28, 13:55 UTCMay 28, 15:50 UTC1h 55m
2026-05-28 UAL2317 EWR → AUS May 28, 01:50 UTCMay 28, 03:00 UTC1h 10m
2026-05-27 UAL2860 LGA → DEN May 27, 22:20 UTCMay 28, 00:00 UTC1h 40m
2026-05-27 UAL1746 LIH → SFO May 27, 19:40 UTCMay 27, 21:00 UTC1h 20m
2026-05-27 UAL576 MIA → DEN May 27, 16:49 UTCMay 27, 17:22 UTC33m
2026-05-27 UAL576 MIA → DEN May 27, 16:45 UTCMay 27, 17:35 UTC50m
2026-05-27 UAL2805 EWR → HNL May 27, 14:20 UTCMay 27, 15:20 UTC1h 0m
2026-05-27 UAL1869 SFO → IAD May 27, 10:20 UTCMay 27, 12:20 UTC2h 0m
2026-05-27 UAL1178 SMF → EWR May 27, 00:14 UTCMay 27, 01:59 UTC1h 45m
2026-05-23 UAL1400 SMF → ORD May 23, 20:20 UTCMay 23, 22:55 UTC2h 35m
2026-05-23 UAL1400 SMF → ORD May 23, 20:33 UTCMay 23, 22:39 UTC2h 6m
2026-05-23 UAL2287 ORD → SAN May 23, 16:30 UTCMay 23, 18:50 UTC2h 20m
2026-05-23 UAL1857 BWI → ORD May 23, 13:00 UTCMay 23, 14:15 UTC1h 15m
2026-05-23 UAL1842 IAD → DEN May 23, 01:10 UTCMay 23, 02:20 UTC1h 10m
2026-05-22 UAL2144 IAH → SFO May 22, 19:50 UTCMay 22, 23:30 UTC3h 40m
2026-05-22 UAL2483 ORD → PDX May 22, 14:10 UTCMay 22, 18:10 UTC4h 0m
2026-05-22 UAL1612 IAH → BOS May 22, 11:40 UTCMay 22, 12:45 UTC1h 5m
2026-05-21 UAL2496 PDX → SFO May 21, 23:45 UTCMay 22, 00:40 UTC55m
2026-05-21 UAL600 EWR → LAS May 21, 20:05 UTCMay 21, 21:05 UTC1h 0m
2026-05-21 UAL1778 EWR → SAT May 21, 17:45 UTCMay 21, 18:55 UTC1h 10m
2026-05-21 UAL1577 RNO → SFO May 21, 14:40 UTCMay 21, 16:20 UTC1h 40m
2026-05-21 UAL1848 MCO → SFO May 21, 02:10 UTCMay 21, 04:00 UTC1h 50m
2026-05-20 UAL556 EWR → FLL May 20, 16:50 UTCMay 20, 18:40 UTC1h 50m
2026-05-20 UAL556 EWR → FLL May 20, 16:54 UTCMay 20, 18:38 UTC1h 44m
2026-05-20 UAL2669 SAT → SFO May 20, 13:50 UTCMay 20, 15:25 UTC1h 35m
2026-05-20 UAL2669 SAT → SFO May 20, 13:26 UTCMay 20, 15:29 UTC2h 3m
2026-05-20 UAL499 DEN → EWR May 20, 02:55 UTCMay 20, 04:40 UTC1h 46m
2026-05-20 UAL499 DEN → EWR May 20, 02:54 UTCMay 20, 04:36 UTC1h 42m
2026-05-19 UAL1478 SEA → SFO May 19, 23:50 UTCMay 20, 01:45 UTC1h 55m
2026-05-19 UAL382 IAH → SAT May 19, 16:55 UTCMay 19, 19:45 UTC2h 50m
2026-05-19 UAL512 SAN → SFO May 19, 13:00 UTCMay 19, 15:35 UTC2h 35m
2026-05-19 UAL2086 EWR → ATL May 19, 00:20 UTCMay 19, 00:55 UTC35m
2026-05-18 UAL404 SFO → DEN May 18, 21:20 UTCMay 18, 21:55 UTC35m
2026-05-18 UAL515 JFK → LAX May 18, 16:10 UTCMay 18, 19:40 UTC3h 29m
2026-05-18 UAL2690 LAS → IAH May 18, 12:40 UTCMay 18, 14:25 UTC1h 45m
2026-05-18 UAL1261 EWR → IAH May 18, 00:27 UTCMay 18, 02:00 UTC1h 33m
2026-05-18 UAL1261 EWR → IAH May 18, 00:20 UTCMay 18, 02:05 UTC1h 45m
2026-05-17 UAL3940 DEN → SEA May 17, 01:30 UTCMay 17, 01:45 UTC15m
2026-05-17 UAL3940 DEN → SEA May 17, 01:07 UTCMay 17, 02:08 UTC1h 1m
2026-05-15 UAL1460 SFO → DEN May 15, 02:25 UTCMay 15, 03:10 UTC45m
2026-05-14 UAL2265 IAH → SFO May 14, 22:40 UTCMay 15, 00:45 UTC2h 5m
2026-05-14 UAL2603 LAX → SFO May 14, 17:26 UTCMay 14, 19:42 UTC2h 16m

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 N854UA page for operator, model, and routing details .

Mode-S ABB7F7 frequently asked

What is Mode-S code ABB7F7?
ABB7F7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N854UA.
Where is Mode-S ABB7F7 registered?
Mode-S code ABB7F7 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 ABB7F7 broadcasting right now?
Yes. Mode-S ABB7F7 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABB7F7, octal 52733767, decimal 11,253,751.
What flights does ABB7F7 operate?
Mode-S ABB7F7 has broadcast 20 distinct callsigns, including UAL1536, UAL8141, UAL576, UAL556, UAL499.