Apparatus

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sensors Mode-S transponder

A7133F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N555NW · BOEING 757-200 · operated by DELTA AIR LINES INC

Hex
A7133F
Octal
51611477
Decimal
10,949,439
Country
US
Tail
N555NW
Type
B752
Broadcasting now · callsign DAL498 · 37,000 ft
Flights observed
484
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Current position

A7133F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A7133F 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
DAL777 Delta Air Lines 16 2026-06-27
DAL1089 Delta Air Lines 12 2026-05-17
DAL466 Delta Air Lines 10 2026-07-24
DAL391 Delta Air Lines 10 2026-05-05
DAL796 Delta Air Lines 9 2026-07-22
DAL602 - 9 2026-06-13
DAL492 Delta Air Lines 8 2026-06-09
DAL1831 Delta Air Lines 8 2026-07-26
DAL1830 Delta Air Lines 8 2026-07-26
DAL2881 - 7 2026-06-30
DAL2326 Delta Air Lines 7 2026-06-20
DAL1385 Delta Air Lines 7 2026-07-25
DAL1167 Delta Air Lines 7 2026-05-01
DAL913 Delta Air Lines 6 2026-06-09
DAL757 - 6 2026-07-07
DAL748 Delta Air Lines 6 2026-07-06
DAL630 Delta Air Lines 6 2026-05-22
DAL348 - 6 2026-07-03
DAL2836 Delta Air Lines 6 2026-05-19
DAL2605 Delta Air Lines 6 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL1831 GUA → ATL Jul 26, 20:05 UTCJul 26, 21:45 UTC1h 40m
2026-07-26 DAL1831 GUA → ATL Jul 26, 19:20 UTCJul 26, 19:25 UTC5m
2026-07-26 DAL1830 ATL → GUA Jul 26, 14:55 UTCJul 26, 17:45 UTC2h 50m
2026-07-25 DAL1785 UVF → ATL Jul 25, 21:05 UTCJul 26, 00:25 UTC3h 20m
2026-07-25 DAL1785 UVF → ATL Jul 25, 20:15 UTCJul 26, 00:23 UTC4h 8m
2026-07-25 DAL2350 IND → ATL Jul 25, 14:00 UTCJul 25, 18:07 UTC4h 7m
2026-07-25 DAL2350 IND → ATL Jul 25, 14:00 UTCJul 25, 17:25 UTC3h 25m
2026-07-25 DAL1385 JFK → TPA Jul 25, 10:24 UTCJul 25, 11:43 UTC1h 19m
2026-07-25 DAL1385 JFK → TPA Jul 25, 10:25 UTCJul 25, 11:40 UTC1h 15m
2026-07-25 DAL1217 ATL → MSY Jul 25, 03:10 UTCJul 25, 04:35 UTC1h 25m
2026-07-24 DAL466 JFK → LAX Jul 24, 21:50 UTCJul 25, 01:20 UTC3h 30m
2026-07-24 DAL466 JFK → LAX Jul 24, 15:25 UTCJul 24, 19:00 UTC3h 35m
2026-07-24 DAL2569 JAX → ATL Jul 24, 12:25 UTCJul 24, 13:10 UTC45m
2026-07-24 DAL2569 JAX → ATL Jul 24, 12:23 UTCJul 24, 13:05 UTC42m
2026-07-24 DAL1001 ORD → LGA Jul 24, 02:10 UTCJul 24, 02:55 UTC45m
2026-07-23 DAL406 BZN → ATL Jul 23, 15:35 UTCJul 23, 23:55 UTC8h 20m
2026-07-23 DAL1463 IAH → MSP Jul 23, 12:25 UTCJul 23, 13:25 UTC1h 0m
2026-07-23 DAL1162 ATL → MCO Jul 23, 02:56 UTCJul 23, 03:56 UTC1h 0m
2026-07-23 DAL1162 ATL → MCO Jul 23, 03:00 UTCJul 23, 04:00 UTC1h 0m
2026-07-22 DAL796 ATL → PHX Jul 22, 20:30 UTCJul 22, 23:50 UTC3h 20m
2026-07-22 DAL796 ATL → PHX Jul 22, 15:30 UTCJul 22, 18:45 UTC3h 15m
2026-07-22 DAL2569 JAX → ATL Jul 22, 12:25 UTCJul 22, 13:10 UTC45m
2026-07-22 DAL2276 SLC → SFO Jul 22, 03:10 UTCJul 22, 03:50 UTC40m
2026-07-21 DAL1785 UVF → ATL Jul 21, 20:45 UTCJul 22, 00:05 UTC3h 20m
2026-07-21 DAL2350 IND → ATL Jul 21, 13:50 UTCJul 21, 17:05 UTC3h 15m
2026-07-21 DAL1726 TPA → ATL Jul 21, 10:25 UTCJul 21, 11:25 UTC1h 0m
2026-07-21 DAL1720 ATL → TPA Jul 21, 01:00 UTCJul 21, 02:05 UTC1h 5m
2026-07-20 DAL587 MEX → ATL Jul 20, 19:45 UTCJul 20, 22:40 UTC2h 55m
2026-07-20 DAL587 MEX → ATL Jul 20, 19:44 UTCJul 20, 22:40 UTC2h 56m
2026-07-20 DAL588 ATL → MEX Jul 20, 14:40 UTCJul 20, 17:35 UTC2h 55m
2026-07-20 DAL1486 JFK → MSY Jul 20, 11:40 UTCJul 20, 12:45 UTC1h 5m
2026-07-20 DAL1560 PBI → LGA Jul 20, 03:25 UTCJul 20, 04:25 UTC1h 0m
2026-07-20 DAL1560 PBI → LGA Jul 20, 03:25 UTCJul 20, 04:24 UTC59m
2026-07-19 DAL591 LAS → ATL Jul 19, 22:10 UTCJul 20, 01:45 UTC3h 35m
2026-07-19 DAL421 DFW → LGA Jul 19, 16:45 UTCJul 19, 20:10 UTC3h 25m
2026-07-19 DAL1298 ATL → DTW Jul 19, 13:40 UTCJul 19, 13:45 UTC5m
2026-07-19 DAL1298 ATL → DTW Jul 19, 13:38 UTCJul 19, 15:05 UTC1h 27m
2026-07-18 DAL9960 JFK → ATL Jul 18, 23:25 UTCJul 19, 01:30 UTC2h 5m
2026-07-15 DAL2614 MSP → BNH Jul 15, 02:20 UTCJul 15, 04:30 UTC2h 10m
2026-07-14 DAL2238 LAS → MSP Jul 14, 21:35 UTCJul 15, 00:20 UTC2h 44m
2026-07-14 DAL2238 LAS → MSP Jul 14, 21:34 UTCJul 15, 00:15 UTC2h 41m
2026-07-14 DAL2238 MSP → LAS Jul 14, 17:00 UTCJul 14, 19:35 UTC2h 35m
2026-07-14 DAL1308 BOS → MSP Jul 14, 12:33 UTCJul 14, 15:01 UTC2h 28m
2026-07-14 DAL1308 BOS → MSP Jul 14, 12:35 UTCJul 14, 15:00 UTC2h 25m
2026-07-13 DAL430 LAS → BOS Jul 13, 18:00 UTCJul 13, 22:55 UTC4h 55m
2026-07-13 DAL607 JFK → LAS Jul 13, 11:15 UTCJul 13, 15:40 UTC4h 25m
2026-07-12 DAL624 - Jul 12, 20:50 UTCJul 13, 02:05 UTC5h 15m
2026-07-12 DAL625 JFK → MEX Jul 12, 14:05 UTCJul 12, 18:44 UTC4h 39m
2026-07-12 DAL625 - Jul 12, 14:05 UTCJul 12, 17:45 UTC3h 40m
2026-07-12 DAL498 LAS → JFK Jul 12, 07:20 UTCJul 12, 11:50 UTC4h 30m

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 N555NW page for operator, model, and routing details .

Mode-S A7133F frequently asked

What is Mode-S code A7133F?
A7133F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N555NW.
Where is Mode-S A7133F registered?
Mode-S code A7133F 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 A7133F broadcasting right now?
Yes. Mode-S A7133F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7133F, octal 51611477, decimal 10,949,439.
What flights does A7133F operate?
Mode-S A7133F has broadcast 20 distinct callsigns, including DAL777, DAL1089, DAL466, DAL391, DAL796.