Brief Introduction
USPS short for the United States Postal Service is one of largest mail services in USA and the world. Set up on July 26th of 1775, it’s an independent organization of U.S. federal government. Owning about 596,000 staffs and 218,684 vehicles, it can be regarded as the largest civilian fleet in the world. Each year, they deal with about 177 hundreds millions of letters accounting for 25% of the global amount.
You can use the above tracking tool to check your USPS package status at any time easily and for free.
Tracking Number Formats
The most common tracking number format is 20 digits (e.g. 9999 9999 9999 9999 9999), or a combination of 13 alphabetic and numeric characters, usually starting with 2 alphabets, following by 9 digits, and ending by "US" (e.g. EA 888 888 666 US). Some other less common formats may also exist, such as 10 digits and 22 digits.
| Service | Number Format |
| Certified Mail | 7000 0000 0000 0000 0000 |
| 9407 1000 0000 0000 0000 00 | |
| Global Express Guaranteed | 82 000 000 00 |
| Priority Mail Express International | EC 000 000 000 US |
| Priority Mail Express | EA 000 000 000 US |
| 9270 1000 0000 0000 0000 00 | |
| Priority Mail International | CP 000 000 000 US |
| Priority Mail | 1400 0000 0000 0000 0000 |
| 9205 5000 0000 0000 0000 00 | |
| Registered Mail | RA 000 000 000 US |
| 9208 8000 0000 0000 0000 00 |
Estimated Delivery Time from USA to China
Priority Mail International: 6-10 working days
Priority Mail Express International: 3- 5 working days
Please note the above time refers to the time that the package arrives in China custom. It may need another 3 or 7 days to reach the recipient.
If you use USPS to send your package from USA to China, when it arrived in China, it will be dealt with by China Post or EMS as there are no official offices of USPS in China. In general, if the tracking number begins with E, it will be delivered by EMS. If it starts with L, R, or C, it will be handed to China post to deliver as an ordinary package especially for L started tracking numbers. So, when the package is in China, you can use China post tracking system to tracking the status of your package. Also, if there is any problem for your package when it arrives in China, you can let the recipient to call 11185 which is the telephone number of China Post customer service to ask.
If your customer requires you to use USPS for them to receive the parcel, in China you can use EMS to post. When it arrives in USA, it will be delivered by USPS.
Postage Rate from USA to China
| Weight Not Over (pounds) |
Priority Mail International | Priority Mail Express International |
|---|---|---|
| 0.5 | $60.00 | |
| 1 | $47.50 | $61.50 |
| 2 | 51.95 | 67.40 |
| 3 | 56.40 | 73.30 |
| 4 | 60.85 | 79.20 |
| 5 | 65.30 | 85.10 |
| 6 | 68.65 | 91.15 |
| 7 | 72.00 | 97.20 |
| 8 | 75.35 | 103.25 |
| 9 | 78.70 | 109.30 |
| 10 | 82.05 | 115.35 |
| 11 | 85.40 | 121.70 |
| 12 | 88.75 | 128.05 |
| 13 | 92.10 | 134.40 |
| 14 | 95.45 | 140.75 |
| 15 | 98.80 | 147.10 |
| 16 | 102.05 | 153.45 |
| 17 | 105.30 | 159.80 |
| 18 | 108.55 | 166.15 |
| 19 | 111.80 | 172.50 |
| 20 | 115.05 | 178.85 |
| 21 | 118.30 | 184.50 |
| 22 | 121.55 | 190.15 |
| 23 | 124.80 | 195.80 |
| 24 | 128.05 | 201.45 |
| 25 | 131.30 | 207.10 |
| 26 | 134.55 | 212.75 |
| 27 | 137.80 | 218.40 |
| 28 | 141.05 | 224.05 |
| 29 | 144.30 | 229.70 |
| 30 | 147.55 | 235.35 |
| 31 | 150.80 | 241.00 |
| 32 | 154.05 | 246.65 |
| 33 | 157.30 | 252.30 |
| 34 | 160.55 | 257.95 |
| 35 | 163.80 | 263.60 |
| 36 | 167.05 | 269.25 |
| 37 | 170.30 | 274.90 |
| 38 | 173.55 | 280.55 |
| 39 | 176.80 | 286.20 |
| 40 | 180.05 | 291.85 |
| 41 | 183.30 | 297.50 |
| 42 | 186.55 | 303.15 |
| 43 | 189.80 | 308.80 |
| 44 | 193.05 | 314.45 |
| 45 | 196.30 | 320.10 |
| 46 | 199.55 | 325.75 |
| 47 | 202.80 | 331.40 |
| 48 | 206.05 | 337.05 |
| 49 | 209.30 | 342.70 |
| 50 | 212.55 | 348.35 |
| 51 | 215.80 | 354.00 |
| 52 | 219.05 | 359.65 |
| 53 | 222.30 | 365.30 |
| 54 | 225.55 | 370.95 |
| 55 | 228.80 | 376.60 |
| 56 | 232.05 | 382.25 |
| 57 | 235.30 | 387.90 |
| 58 | 238.55 | 393.55 |
| 59 | 241.80 | 399.20 |
| 60 | 245.05 | 404.85 |
| 61 | 248.30 | 410.50 |
| 62 | 251.55 | 416.15 |
| 63 | 254.80 | 421.80 |
| 64 | 258.05 | 427.45 |
| 65 | 261.30 | 433.10 |
| 66 | 264.55 | 438.75 |
Note:
Max. Weight Limits: 66 LBS
Max. Item Value: $1,222 for Priority Mail International and $5,000 for Priority Mail Express International
Insurance Fee: No charge for item with worth less than $200.
How to Contact USPS
If you have questions about your package and would like to have a complaint, the best way to contact USPS is to give them a call. Automated information is available 24 hours per day, 7 days a week.
Services (Delivery Services, Change of Address, Redelivery, Hold Mail, etc.)
Please call: 1-800-275-8777
Hours of Operation
Monday - Friday 8 AM - 8:30 PM ET
Saturday 8 AM - 6 PM ET
Closed on Sundays and Holidays (Please check the following chart to get the holidays’ dates):
2025 Postal Holidays
| Date | Day | Holiday |
|---|---|---|
| January 1 | Wednesday | New Year’s Day |
| January 20 | Monday | Martin Luther King Jr’s Birthday |
| February 17 | Monday | Washington’s Birthday (President’s Day) |
| May 26 | Monday | Memorial Day |
| July 4 | Friday | Independence Day |
| September 1 | Monday | Labor Day |
| October 13 | Monday | Columbus Day |
| November 11 | Tuesday | Veteran’s Day |
| November 27 | Thursday | Thanksgiving Day |
| December 22 | Thursday | Christmas Day |
Prohibited Items to Deliver
（1）Brand goods and textiles
（2）Aerosol Cans
（3）Firearms
（4）Flammable materials
（5）Liquids & powders
（6）Lottery tickets
（7）Poisons
（8）Alcoholic beverages
（9）Ammunition
（10）Drug paraphernalia
（11）Fireworks & other explosives
Track Other International Packages:
DHL Package Tracking
FedEx Package Tracking
UPS Package Tracking
Hong Kong Post Packet Tracking
China Post Small Packet Tracking
China International EMS Package Tracking
DHL Package Tracking
FedEx Package Tracking
UPS Package Tracking
Hong Kong Post Packet Tracking
China Post Small Packet Tracking
China International EMS Package Tracking