1. Effectively I have the same thing as you:
2016-07-11 17:50
ELIZABETH CITY,US, Package arrived at the carrier facility (Yunexpress's Track End)

On this site:
http://www.track-chinapost.com/track.php?code=YT1618518979209007&fc=0

And on this site also:
http://www.trackitonline.ru/?service=track

2. This is the full copy of the tracking:
Number: YT1618518979209007
Package Status: In Transit
Destination Country: United States
Origin Country: China
2016-07-11 17:50 ELIZABETH CITY,US, Package arrived at the carrier facility (Yunexpress's Track End)
2016-07-09 10:16 US, Completed customs clearance process
2016-07-08 09:15 US, Package arrived at destination airport
2016-07-04 08:11 Guangzhou, China, Departure from airport to destination country
2016-07-03 20:38 SHENZHEN, CHINA, Package has left the carrier facility
2016-07-03 15:36 SHENZHEN, CHINA, Package received by carrier
2016-07-03 13:33 SHENZHEN, CHINA, Package has left seller facility and is in transit to carrier
2016-07-03 07:17 SHENZHEN,CHINA, Waybill Generated

3. Maybe you could bring this tracking to the USPS main Office in ELIZABETH CITY, 1001 W Ehringhaus St, Elizabeth City, NC 27909-9998
Also maybe your parcel has arrive and now has to be dispatch to one of the other office to be deliver.

Hope this help.

Hello HeidiLikes-EBM,

I can see that my expert friend int077 has already helped you on this query.

Just to update you on my story.

I had placed 4 orders on aliexpress in the month of June. And all of them had shipped via Yunexpress. Please find below the links of tracking numbers.

http://www.yuntrack.com/Track/Detail/YT1616590005768320
http://www.yuntrack.com/Track/Detail/YT1616590005771221
http://www.yuntrack.com/Track/Detail/YT1616590005429557
http://www.yuntrack.com/Track/Detail/YT1615990002074826

Please click on any of the first 3 links and you will see that my all 3 shipments are having same status just as yours - "Package arrived at the carrier facility (Yunexpress's Track End)"

Out of the above 4 shipments, order shipped through tracking number YT1615990002074826 the order was placed on 9th June 2016 and today 22 July 2016, I have received the order after 43 days.

The amazing part is that it could not be tracked on yuntrack website. But the same was partially traceable on http://www.trackitonline.ru/?service=track

and aftership(dot)com.

Both me and int077 were of the opinion that this parcel was lost in transit. But I received only this one so far. The remaining 3 parcels are already 40 days old for which I am waiting patiently.

Now coming to your parcel, the updates provided on the website is totally fake. That does not mean you won't receive your parcel. You just need to wait some more days patiently (may be a month probably). Calling your local post office won't help. I did the same thing and got rude answer from the customer agent. Post offices don't recognize the yuntrack tracking numbers format. Also "YT1615990002074826" was not printed on the parcel which I received today.

So please wait. And update us when you receive your shipment. I will do the same.

Please go through the following forums related to yuntrack comments: Remove (dot) and add .

chinapost-track(dot)com/track-yun-express

packageradar(dot)com/courier/yuntrack

Regards,
Gaurav