sensors Mode-S transponder
8004DE
ICAO 24-bit transponder address · allocated to India
Currently assigned to VT-ALP · BOEING 777-300ER
- Hex
- 8004DE
- Octal
- 40002336
- Decimal
- 8,389,854
- Country
- IN
- Tail
- VT-ALP
- Type
- B77W
- Flights observed
- 61
- Distinct callsigns
- 18
- Country
- IN
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 8004DE falls within the block assigned to India (IN) by ICAO Annex 10, Volume III. Every aircraft registered in India 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 18 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| AIC189 | Air India | 9 | 2026-04-16 |
| AIC187 | Air India | 8 | 2026-05-30 |
| AIC127 | Air India | 8 | 2026-05-24 |
| AIC4174 | - | 6 | 2026-05-29 |
| AIC190 | Air India | 6 | 2026-04-17 |
| AIC188 | Air India | 4 | 2026-05-30 |
| AIC126 | Air India | 4 | 2026-05-24 |
| AIC538 | Air India | 3 | 2026-06-02 |
| AIC173 | Air India | 3 | 2026-05-27 |
| AIC3107 | - | 2 | 2026-04-15 |
| AIC816 | Air India | 1 | 2026-06-01 |
| AIC537 | Air India | 1 | 2026-06-02 |
| AIC441 | Air India | 1 | 2026-06-01 |
| AIC4305 | Air India | 1 | 2026-05-16 |
| AIC3111 | - | 1 | 2026-04-19 |
| AIC2CE | Air India | 1 | 2026-05-02 |
| AIC186 | Air India | 1 | 2026-05-19 |
| AIC185 | Air India | 1 | 2026-05-18 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | AIC538 | BBI → MAA | Jun 2, 17:05 UTC | Jun 2, 17:35 UTC | 30m |
| 2026-06-02 | AIC537 | MAA → BBI | Jun 2, 11:10 UTC | Jun 2, 11:30 UTC | 20m |
| 2026-06-01 | AIC816 | BOM → DEL | Jun 1, 16:05 UTC | Jun 1, 17:40 UTC | 1h 35m |
| 2026-06-01 | AIC441 | DEL → BOM | Jun 1, 12:30 UTC | Jun 1, 14:20 UTC | 1h 50m |
| 2026-05-30 | AIC188 | YYZ → DEL | May 30, 18:40 UTC | May 31, 10:30 UTC | 15h 50m |
| 2026-05-30 | AIC187 | DEL → YYZ | May 30, 06:10 UTC | May 30, 14:25 UTC | 8h 15m |
| 2026-05-29 | AIC187 | DEL → YYZ | May 29, 19:45 UTC | May 30, 04:35 UTC | 8h 50m |
| 2026-05-29 | AIC4174 | - | May 29, 13:25 UTC | May 29, 15:40 UTC | 2h 15m |
| 2026-05-28 | AIC4174 | - | May 28, 19:35 UTC | May 29, 11:05 UTC | 15h 30m |
| 2026-05-27 | AIC173 | DEL → SFO | May 27, 23:50 UTC | May 28, 16:10 UTC | 16h 20m |
| 2026-05-26 | AIC188 | YYZ → DEL | May 26, 18:24 UTC | May 27, 10:15 UTC | 15h 51m |
| 2026-05-26 | AIC187 | DEL → YYZ | May 26, 06:29 UTC | May 26, 15:20 UTC | 8h 50m |
| 2026-05-25 | AIC187 | DEL → YYZ | May 25, 19:15 UTC | May 26, 04:20 UTC | 9h 5m |
| 2026-05-24 | AIC126 | ORD → DEL | May 24, 19:40 UTC | May 25, 12:20 UTC | 16h 40m |
| 2026-05-24 | AIC127 | DEL → ORD | May 24, 07:05 UTC | May 24, 16:55 UTC | 9h 50m |
| 2026-05-23 | AIC127 | DEL → ORD | May 23, 20:00 UTC | May 24, 05:05 UTC | 9h 5m |
| 2026-05-23 | AIC4174 | SFO → CCU | May 23, 15:15 UTC | May 23, 16:55 UTC | 1h 40m |
| 2026-05-22 | AIC4174 | SFO → CCU | May 22, 20:55 UTC | May 23, 13:05 UTC | 16h 9m |
| 2026-05-22 | AIC173 | DEL → SFO | May 22, 01:55 UTC | May 22, 17:20 UTC | 15h 25m |
| 2026-05-19 | AIC186 | YVR → DEL | May 19, 17:20 UTC | May 20, 10:00 UTC | 16h 41m |
| 2026-05-18 | AIC185 | DEL → YVR | May 18, 23:15 UTC | May 19, 14:00 UTC | 14h 45m |
| 2026-05-18 | AIC538 | BBI → MAA | May 18, 11:50 UTC | May 18, 18:10 UTC | 6h 20m |
| 2026-05-17 | AIC538 | BBI → MAA | May 17, 11:30 UTC | May 17, 18:05 UTC | 6h 35m |
| 2026-05-16 | AIC4305 | DEL → DXB | May 16, 23:55 UTC | May 17, 08:35 UTC | 8h 40m |
| 2026-05-15 | AIC126 | ORD → DEL | May 15, 20:30 UTC | May 16, 12:25 UTC | 15h 56m |
| 2026-05-15 | AIC127 | DEL → ORD | May 15, 08:15 UTC | May 15, 17:30 UTC | 9h 14m |
| 2026-05-14 | AIC127 | DEL → ORD | May 14, 20:50 UTC | May 15, 06:40 UTC | 9h 50m |
| 2026-05-13 | AIC188 | YYZ → DEL | May 13, 18:30 UTC | May 14, 10:00 UTC | 15h 30m |
| 2026-05-13 | AIC187 | DEL → YYZ | May 13, 06:55 UTC | May 13, 15:50 UTC | 8h 55m |
| 2026-05-12 | AIC187 | DEL → YYZ | May 12, 19:30 UTC | May 13, 05:05 UTC | 9h 35m |
| 2026-05-11 | AIC4174 | SFO → CCU | May 11, 12:55 UTC | May 11, 15:00 UTC | 2h 5m |
| 2026-05-10 | AIC4174 | SFO → CCU | May 10, 19:00 UTC | May 11, 11:25 UTC | 16h 25m |
| 2026-05-09 | AIC173 | DEL → SFO | May 9, 22:34 UTC | May 10, 14:09 UTC | 15h 35m |
| 2026-05-08 | AIC126 | ORD → DEL | May 8, 20:55 UTC | May 9, 13:20 UTC | 16h 25m |
| 2026-05-08 | AIC127 | DEL → ORD | May 8, 07:20 UTC | May 8, 16:40 UTC | 9h 20m |
| 2026-05-07 | AIC127 | DEL → ORD | May 7, 20:05 UTC | May 8, 05:20 UTC | 9h 15m |
| 2026-05-06 | AIC188 | YYZ → DEL | May 6, 19:40 UTC | May 7, 11:25 UTC | 15h 45m |
| 2026-05-06 | AIC187 | DEL → YYZ | May 6, 07:01 UTC | May 6, 15:45 UTC | 8h 44m |
| 2026-05-05 | AIC187 | DEL → YYZ | May 5, 20:01 UTC | May 6, 05:20 UTC | 9h 19m |
| 2026-05-04 | AIC126 | ORD → DEL | May 4, 00:15 UTC | May 4, 17:00 UTC | 16h 45m |
| 2026-05-03 | AIC127 | DEL → ORD | May 3, 08:15 UTC | May 3, 17:24 UTC | 9h 10m |
| 2026-05-02 | AIC127 | DEL → ORD | May 2, 20:25 UTC | May 3, 05:55 UTC | 9h 29m |
| 2026-05-02 | AIC2CE | BOM → DEL | May 2, 16:45 UTC | May 2, 17:30 UTC | 45m |
| 2026-04-19 | AIC3111 | - | Apr 19, 09:30 UTC | Apr 19, 10:05 UTC | 35m |
| 2026-04-17 | AIC190 | YYZ → DEL | Apr 17, 09:35 UTC | Apr 17, 10:25 UTC | 50m |
| 2026-04-17 | AIC190 | YYZ → DEL | Apr 17, 03:20 UTC | Apr 17, 03:50 UTC | 30m |
| 2026-04-17 | AIC190 | YYZ → DEL | Apr 17, 01:20 UTC | Apr 17, 03:15 UTC | 1h 55m |
| 2026-04-16 | AIC190 | YYZ → DEL | Apr 16, 23:25 UTC | Apr 17, 01:15 UTC | 1h 50m |
| 2026-04-16 | AIC190 | YYZ → DEL | Apr 16, 19:15 UTC | Apr 16, 19:50 UTC | 35m |
| 2026-04-16 | AIC190 | YYZ → DEL | Apr 16, 18:25 UTC | Apr 16, 19:10 UTC | 45m |
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 VT-ALP page for operator, model, and routing details .