Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Location | Aircraft | Tail number | Aircraft damage | Fatalities |
| --- | --- | --- | --- | --- |
| Greece | Douglas C-47A | YA-AAD | W/O | Unknown |
| Off Beirut | DC-4 | YA-BAG | W/O | 24/27 |
| London | Boeing 727-100C | YA-FAR | W/O | 50 |
| Kabul | Douglas C-47DL | YA-BAD | W/O | Unknown |
| Pakistan | An-26 | Unknown | W/O | 25/25 |
| Zabol | An-26 | YA-BAK | W/O | 6/39 |
| Kabul | Tu-154M | YA-TAP | W/O | 0/0 |
| Kabul | An-26 | YA-BAN | W/O | Unknown |
| Jalalabad | An-26B | YA-BAO | W/O | 3/46 |
| Jalalabad | Yak-40 | YA-KAE | W/O | 1 |
| Charasyab | Boeing 727-200 | YA-FAZ | W/O | 45/45 |
| Kabul | An-12B | YA-DAA | W/O | 0/0 |
| Kabul | An-12BK | YA-DAB | W/O | 0/0 |
| Kabul | An-24 | Unknown | W/O | 0/0 |
| Kabul | An-24B | YA-DAH | W/O | 0/0 |
| Kabul | An-24RV | YA-DAJ | W/O | 0/0 |
| Kabul | Boeing 727-100C | YA-FAU | W/O | 0/0 |
| Kabul | Boeing 727-100C | YA-FAW | W/O | 0/0 |
| Istanbul | A300B4-200 | YA-BAD | W/O | 0 |
Question:
What tail number was on the an-26, with 25/25 fatalities?
Answer:
Unknown