Assignment history for 503 021
| Vehicle | Date | Model |
| 18140 | 2026/03/13 | 2018 NFI XN40 |
| 18367 | 2026/03/12 | 2018 Nova Bus LFS HEV |
| 24107 | 2026/03/11 | |
| 18130 | 2026/03/10 | 2018 NFI XN40 |
| 16124 | 2026/03/09 | 2016 NFI XD40 |
| 18379 | 2026/03/09 | 2018 Nova Bus LFS HEV |
| 16116 | 2026/03/06 | 2016 NFI XD40 |
| 18362 | 2026/03/05 | 2018 Nova Bus LFS HEV |
| 9669 | 2026/03/04 | 2007 Nova Bus LFS |
| 19138 | 2026/03/03 | 2019 NFI XN40 |
| 18367 | 2026/03/02 | 2018 Nova Bus LFS HEV |
| 7489 | 2026/02/27 | 2006 NFI D40LFR |
| 18153 | 2026/02/26 | 2018 NFI XN40 |
| 16114 | 2026/02/25 | 2016 NFI XD40 |
| 9672 | 2026/02/24 | 2007 Nova Bus LFS |
| 7468 | 2026/02/23 | 2006 NFI D40LFR |
| 18106 | 2026/02/20 | 2018 NFI XN40 |
| 18159 | 2026/02/19 | 2018 NFI XN40 |
| 18380 | 2026/02/18 | 2018 Nova Bus LFS HEV |
| 24112 | 2026/02/17 | |
| 24148 | 2026/02/13 | |
| 18143 | 2026/02/12 | 2018 NFI XN40 |
| 16128 | 2026/02/11 | 2016 NFI XD40 |
| 24129 | 2026/02/10 | |
| 24137 | 2026/02/09 | |
| 24131 | 2026/02/09 | |
| 19112 | 2026/02/06 | 2019 NFI XN40 |
| 19112 | 2026/02/05 | 2019 NFI XN40 |
| 18115 | 2026/02/04 | 2018 NFI XN40 |
| 7492 | 2026/02/03 | 2006 NFI D40LFR |
| 24109 | 2026/02/02 | |