Data may not be real time. “Live” times come from MTA real-time feeds as processed by our trip planner; “Scheduled” times come from published timetables. This site is independent and not affiliated with the MTA. Updated 11:25 PM ET; refreshes every 30 seconds.
No alerts currently posted for the Bx4A Bx21 at this stop.
Alerts from MTA service alert feeds, shown as published (English). Data may not be real time.
| Route & direction | Weekday | Sat | Sun |
|---|---|---|---|
| Bx4A WESTCHESTER AV via METROPOLITAN OVAL | 6:06 AM – 12:19 AM | 6:51 AM – 12:38 AM | 6:55 AM – 12:55 AM |
| Bx21 Mott Haven 136 St | 24 hours | 24 hours | 24 hours |
From the published schedule (reference dates Oct 20, 2026, Oct 17, 2026, Oct 18, 2026). Late-night service may differ; overnight trips after midnight are shown as early-morning times.