4PX Tracking
4px Worldwide Express (递四方) is a China’s warehouse and fulfillment company focusing on cross-border logistics service for ecommerce. SingPost acquired a 20% stake in 4px.

4PX branded tracking experience
Give customers the best post-purchase experience with proactive delivery updates.

4PX tracking API and webhooks
Designed for developers to integrate 4PX tracking functionality easily using 4PX tracking API

Get 4PX updates with AfterShip mobile app
Keep your shopping organized. Never miss your 4PX delivery again.

For business
Engage customers after sales with delivery updates.
Keep customers informed of delivery updates.
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For shoppers
Keep your online shopping organized
See the latest status of your online orders in one place.

Scan to download app (free) iOS & Android 4.7 ⭐️
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