UPU S10 Standard

The UPU S10 standard provides guidelines for using tracking numbers in international mail. Tracking numbers are unique codes assigned to postal items that enable postal operators and customers to track packages or letters. Per the UPU S10 standard, tracking numbers are assigned to all postal items, such as EMS or registered mail.

More info about S10 standard

Postal Services. UPU Members

The Universal Postal Union (UPU) is an international organization that brings together postal operators from around the world to promote the efficient and reliable exchange of mail. The UPU currently has 192 member countries, making it one of the largest organizations of its kind in the world. The UPU includes countries from all continents, from small island states to major economic powers. Each member country is represented in the UPU by its designated postal operator, responsible for providing postal services on its national territory and complying with the rules and standards of the UPU for international postal traffic.

By cooperating through the UPU, member countries can access the global postal network and benefit from a universal postal service system that helps facilitate trade, communication, and social connections across borders. The UPU strives to promote the interests and needs of all its member countries and works to ensure that the benefits of postal services are available to everyone, regardless of location or economic status.

Part of this list of postal services we provide you in our catalog, where you can find detailed information about the carrier, contact details and check/validate the tracking number.

  • Hrvatska Pošta
  • Posten Norge
  • Poste Maroc (Morocco Post)
  • Poste Italiane (Italian Post)
  • Österreichische Post (Austrian Post)
  • Slovenská Pošta (Slovak Post)
  • Pošta Slovenije (Slovenia Post)
  • Posta Shqiptare (Albania Post)
  • Pošta Srbije (Post Serbia)
  • Poșta Română (Romanian Post)
  • North Macedonia Post
  • Poșta Moldovei (Moldova Post)
  • Postal Corporation of Kenya (Kenya Post)
  • La Poste Tunisienne (Tunisian Post)
  • Pošta Crne Gore (Montenegro Post)
  • BH Pošte (Bosnia and Herzegovina Post)
  • Pos Malaysia (Malaysia Post)
  • Pos Indonesia (Indonesia Post)
  • Poczta Polska (Polish Post)
  •  O‘zbekiston Pochtasi (Uzbekistan Post)
  • PHLPost (Philippine Postal Corporation)
  • Latvijas Pasts (Latvian Post)
  • Pakistan Post
  • OPT-NC (New Caledonia Post English)
  • Omniva (Eesti Post)
  • PTT (Turkish Post)
  • Vietnam Post
  • USPS
  • Ukrposhta
  • Thailand Post (THP)
  • Swiss Post
  • Saudi Post
  • SingPost (Singapore Post)
  • Russian Post
  • Royal Mail
  • Royal Gibraltar Post Office
  • Qatar Post
  • Oman Post
  • Pósturinn (Iceland Post)
  • Chunghwa Post (Taiwan Post)
  • South African Post Office
  • PostNord Sweden
  • PostNord Denmark
  • PostNL
  • POST Luxembourg
  • Lietuvos paštas (Lithuania Post)
  • Liechtensteinische Post
  • Iran Post
  • Posti (Finland Post)
  • 4-72 (Colombia Post)
  • Egypt Post
  • Deutsche Post
  • Cyprus Post
  • Correios De Macau (Macao Post)
  • CTT Correios de Portugal
  • Correo Uruguayo (Uruguay Post)
  • Correos De Mexico
  • Correos del Ecuador (Ecuador Post)
  • CorreosChile (Chile Post)
  • Correos (Spanish Post)
  • Correo Argentino
  • Correios (Brazil Post)
  • ELTA Hellenic Post (Greece Post)
  • China Post
  • Česká Pošta (Czech Post)
  • Canada Post
  • BPost (Belgian Post Group)
  • BotswanaPost
  • Bulgarian Posts
  • Belpochta
  • Bangladesh Post Office (Bangla Post)
  • Azərpoçt
  • Australia Post
  • An Post (Ireland Post)
  • KEP (Kyrgyz Express Post)
  • NZ Post
  • NIPOST (Nigerian Post)
  • Myanmar Post
  • Kuwait Post
  • MaltaPost (Malta Post)
  • Magyar Posta (Hungary Post)
  • LibanPost (Liban Post)
  • La Poste Monaco (Monaco Post)
  • La Poste (French Post)
  • Enterprise des Poste Lao (Laos Post)
  • Korea Post
  • Afghan Post
  • Kazpost (Kazakhstan Post)
  • Jordan Post Company
  • Jersey Post
  • Japan Post
  • Israel Post
  • India Post
  • Hongkong Post
  • Armenia Post (HayPost)
  • Georgian Post
  • Ethiopost (Ethiopia Post)
  • Emirates Post

Questions and Answers

  • Suppose you have a tracking number for an international package and are still determining the sender's credibility or the online store from which you made the purchase. Our service can help validate the tracking number according to the UPU S10 standard. To do this, enter the tracking number in the provided input field, and we will provide you with comprehensive information about the type of parcel and the postal operator that issued the tracking number.

  • A tracking number is a unique alphanumeric code assigned to a parcel, shipment, or letter that allows you to identify and control its movement throughout delivery. It serves as an identifier to track the activity and status of the movement of goods from origin to destination. Tracking numbers are typically provided by postal services, courier companies, or logistics providers and can be used by senders, recipients, and carriers to track a shipment's progress and receive real-time updates on its location and delivery status.

  • Not all shipments are tracked, primarily due to the lower cost associated with their delivery. According to the UPU S10 standard, only tracking numbers starting from the LA-LZ range are available. However, there may be cases where other parcels can be tracked in the recipient's country, but this is optional and may vary depending on the specific postal service or carrier.

  • According to the UPU S10 standard, it is impossible to determine the country of destination based solely on the tracking number. However, you can identify the postal operator that issued the tracking number and select the type of mailing. If you want more information, you can visit the carrier's official website and track your package using the provided tracking number. The carrier's website will give you the most accurate and up-to-date information on the status and location of your package.

  • To determine if your tracking number is fake or invalid, you can take the following steps:

    Check the UPU S10 format. Ensure that the tracking number matches the UPU S10 format. You can visit the validation page and enter the tracking number to verify its validity, package type, and the postal service that issued the tracking number.

    Track your package. Use the tracking number to track your parcel on the carrier's official website or through a trusted partner tracking service. If the tracking information is unavailable, not updated, or shows unusual or inconsistent data, it could indicate a fake tracking number.

    Contact the carrier or postal service. Contact the courier or postal service directly and provide them with your tracking number. They can authenticate the tracking number and provide you with information on the status of your shipment.

    Be cautious with surprising tracking numbers. If you receive a tracking number unexpectedly, especially from an unfamiliar source, exercise caution. It might be a phishing attempt or a scam. Please don't click on any links or share personal information associated with the tracking number.