Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Compassvale Int → Ang Mo Kio Int | 05:15 | 23:30 | 7–10 min | 10–14 min | 10–12 min | 11–22 min |
| Ang Mo Kio Int → Compassvale Int | 06:00 | 23:30 | 10–14 min | 9–13 min | 10–12 min | 10–24 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.