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Address Verification

Česká pošta Address Validation

By 6 June 2025June 11th, 2025No Comments
address validation

What is Česká pošta Address Validation, and How Does it Work?

The Czech Republic’s postal organization, Česká pošta, allows businesses to send postcards, letters, flyers, packages, etc., countrywide for reasonable rates. However, mail deliverability depends on several factors, like your mailing address accuracy and standardization. The post office will likely return your shipments if your addresses have typos or incorrect details. 

Česká pošta address validation lets you resolve the deliverability issue by checking whether the postal organization can send mail to specific locations and addresses. You can proceed with your direct mailings only if your addresses are valid. Otherwise, you can make changes or cross-check the details with your recipients. 

Furthermore, you can use address validation to standardize your addresses according to Česká pošta’s regulations. Since many postal machines read your mailing details upside down, maintaining a specific format is crucial for proper mail routing and deliveries. 

This blog discusses the meaning of Česká pošta address validation, how the tool works, its use cases, and its limitations. If you are serious about checking the validity of your address, you may want to consider a dedicated solution for this task, which we have also covered in this blog. Let us begin!

address validation

Key Takeaways

  • Česká pošta address validation lets you cross-check whether your delivery addresses are correct and complete. If not, it helps you make the necessary changes before mailing something. 
  • All healthcare, real estate, financial services, insurance, retail, and other companies require address validation to confirm customers’ identities, store accurate records, and ship documents promptly. They can also use it to update their client addresses occasionally. 
  • Česká pošta address validation has many tools to help businesses mail letters and packages, like a postal code finder, post office locator, tips on using postboxes, etc. You can access its website to leverage these services before shipping. 
  • These services can only assist you in mailing something; they do not allow you to determine whether your customers’ delivery addresses are valid and complete.
  • PostGrid’s Address Verification API allows you to check addresses within the Czech Republic and other countries. It lets you validate any number of mailing addresses whenever needed, ensuring timely deliveries and no mail returns.

What is Česká pošta Address Validation?

It involves finding a mailing address in Česká pošta’s authoritative database. Since most postal organizations keep records of all delivery points nationwide, businesses can cross-check whether their mailing lists are eligible for shipping something. Otherwise, they can make adequate changes to their records beforehand instead of incurring mail returns and wastage.

Address validation typically includes many steps, including autocomplete. This feature lets users see a list of accurate address suggestions when they enter something in the search field. Thus, it saves time and reduces the possibility of making mistakes while reducing the number of keystrokes. 

The following step is address standardization, which involves reformatting the addresses to match the postal service’s prescribed format. It simplifies reading the delivery details and routes shipments to ensure timely and hassle-free deliveries. 

How Does Česká pošta Address Validation Work?

This tool has many services to allow you to send mailpieces to your intended recipients accurately. You can access them through Česká pošta’s website whenever needed. They include:

Postal Code Finder

This service enables businesses to confirm whether a specific postal code is associated with a city, district, and street. Enter the city name of the postal code in the search field to get a list of addresses with the correct district names, villages, parts of the villages, and postal codes. 

Alternatively, you can directly feed in a postal code to get the names of all associated areas. For example, here’s what you can see when you type “60200:”

If you navigate the “District” dropdown, you get a list of all the districts within this postal code, including:

  • Benešov
  • Blansko
  • Brno-countryside
  • Domazlice
  • Havlíčku Brod
  • Hodonin, etc. 

Similarly, you can enter a street name and a descriptive number to filter the results further. This postal code finder is excellent for confirming whether a postal code serves the area your intended recipients live in! If not, you can find the right one. 

Branch Search

Businesses can look up postal service branches using the branch search. It allows you to enter a city name or postal code to locate all the post offices in the neighborhood or locality. You can use the filters this service offers to help you find a facility that can serve your requirements precisely, including:

  • Now open
  • Branch type
  • Services
  • Branch parameters
  • Additional services
  • Opening days and timings

You can select these filters according to your requirements to find post offices available in your locality that remain open when you have the time to visit. If you enter the postal code 11800, you get the following details:

Furthermore, you can search for post offices by navigating the map at the bottom of the page. It allows you to zoom in and out based on the location to locate postal facilities in any neighborhood you need.

List of Undeliverable Places

Česká pošta offers businesses a list of places that don’t have postal delivery services, keeping you from sending mail items to these destinations. You can download this list in a CSV file, which will help you cross-check your customer records. Hence, you can avoid shipping to these locations via the post office. Instead, you can use other courier options, like UPS and FedEx, to complete hassle-free deliveries within your desired timeframes. 

Mailbox and Out-of-Service Mailboxes Lists

You can find nearby mailboxes by using the Česká pošta address validation. It lets you drop off mail items without traveling long distances or delaying shipments. However, you cannot send something to a mailbox out of order. Hence, Česká pošta has curated a list of all mailboxes in the Czech Republic and a list of all out-of-service mailboxes. You can download these files in a CSV format and incorporate them into your system for error-free shipping. 

List of Municipalities and Parts of Municipalities

These lists have all the details about the municipalities in the Czech Republic. You can add these files to your existing workflows for free. So, whenever you need to validate an address, you can look up these records and spot any mistakes. Though free and helpful, your staff must dedicate quite some time and effort to adding these files to your systems and using them regularly. 

Who Uses Česká pošta Address Validation?

Česká pošta address validation has many use cases or applications across several sectors. Though they might ship different types of mail items or their audiences differ, this tool allows them to save money, time, and effort:

Insurance Companies

Checking address validity allows insurance firms to confirm client identities when they buy their policies. It also allows them to verify whether legitimate policyholders have made a claim and it is not an identity theft event. Also, correct delivery addresses help firms send policy renewal reminders, notices, bills, product terms and conditions, etc., to clients at the right time!

Retail Brands 

Online stores, fashion brands, and grocery retailers benefit the most because they ship high volumes daily. By ensuring addresses are valid at checkout, they speed up order processing and avoid delays. It also helps with fraud prevention by flagging suspicious addresses. Retail brands use this tool to provide a smoother shopping experience and make their shipping process more efficient.

These businesses use Česká pošta address validation to cross-check customer addresses before shipping products. It allows them to reduce delivery errors, prevent lost packages, and improve customer satisfaction. Furthermore, brands can save money by avoiding returns due to incomplete and undeliverable addresses. 

Real Estate Firms

They rely on Česká pošta address validation to keep property data accurate and reliable. When listing homes, signing contracts, or sending legal documents, even a tiny address mistake can cause significant problems. This tool ensures every address is correct, preventing delays and confusion. Agents use it to verify client details, while property managers depend on it for lease agreements and rent notices. It also helps firms target the right buyers and tenants with marketing campaigns. Address validation allows real estate businesses to operate smoothly and provide better client service by reducing errors and improving efficiency.

Healthcare Organizations 

They verify addresses to ship patient records, prescriptions, and billing statements with sensitive information to the correct recipients. Hospitals, clinics, and pharmacies require accurate addresses to avoid critical communications and medication delivery delays. It helps emergency services locate patients faster when response time matters most. 

Healthcare insurance providers use Česká pošta address validation to verify policyholder addresses, reducing fraud and claim disputes. Organizations improve patient care, streamline administrative tasks, and prevent costly mistakes by cross-checking every address for validity, completeness, and deliverability.

Financial Services Companies

Banks, insurance firms, and lending institutions use address validation and standardization for account verification, statements, loan documents, and fraud prevention. Incorrect or outdated addresses can lead to lost documents, identity theft risks, or compliance issues. This tool ensures that crucial financial communications, like credit card bills and policy updates, arrive at the accurate destinations on time. It also helps businesses meet regulatory requirements by maintaining up-to-date client information.

Nonprofit Organizations 

They use Česká pošta address validation before sending marketing mail, donation request letters, receipts, etc., to supporters, donors, and beneficiaries. Accurate addresses help charities send donation receipts, event invitations, and newsletters without wasted postage or delays. It also improves fundraising efforts by ensuring appeals and thank-you letters reach the intended recipients. For organizations providing aid, such as food banks or shelters, correct addresses prevent delivery mistakes and ensure resources get to those in need.

Česká pošta Address Validation Limitations

Organizations can use Česká pošta address validation for several reasons, like finding nearby post offices or getting a list of all postal codes in the country. However, it has many drawbacks, like:

No In-Line Address Validation Capabilities

You cannot enter an entire delivery address (street address, city, state, and postal code) into a search field and get verified results using Česká pošta address validation. The tool only allows you to download files containing the details of delivery points across the Czech Republic. You must manually sync all the files to cross-check your intended recipients’ delivery addresses across different data resources. 

But what happens if you don’t have the time to do so regularly? You must seek an alternative, like PostGrid’s Address Verification API. It lets you check your entire mailing address in one run, helping you get the desired results without trouble.

No Geocoding Features

Česká pošta does not offer forward or reverse geocoding solutions. Hence, businesses cannot obtain their customers’ rooftop geocodes for data mapping, marketing, logistics, and other purposes. They also don’t get any other metadata, like the census data, county information, etc. 

Cannot Provide Real-Time Updates

You must repeatedly download and sync all the data files with your system to get real-time insights. Otherwise, your database will be filled with outdated delivery addresses. It is a significant limitation of Česká pošta address validation because you can only find post offices and search postal codes in real-time. 

Cannot Check Addresses in Bulk

Businesses must pair Česká pošta address validation with another tool to check their recipients’ delivery addresses in large quantities. Since it does not offer a reliable service to enter address records and get validated results, it does not have a bulk verification feature. 

What is the Best Česká pošta Address Validation Alternative?

Businesses that regularly ship items to customers, suppliers, partners, associates, etc., need a solid address validation platform to ensure accurate deliveries. You might send several marketing, transactional, and compliance mailpieces often, making having such a tool essential. Though Česká pošta offers a lot of data and services, it is not a dedicated address-checking platform. Hence, you can try another alternative, like PostGrid’s Address Verification API.

PostGrid offers address autocomplete, parsing, standardization, validation, and geocoding—all in one place. You don’t have to pay separately for these features. Once you enter your delivery addresses, you get updated, accurate, deliverable results. Also, you get the associated latitudes and longitudes, allowing you to store adequate metadata on your customer records. 

Česká Pošta vs PostGrid Address Validation

Parameters

Česká Pošta 

PostGrid

Usage This tool is helpful for businesses that want to obtain a list of municipalities, postal codes, or other elements in CSV format to incorporate into their system. This tool allows you to standardize and validate delivery addresses for accurate shipping, marketing, decision-making, etc. 
International Coverage It only provides you with data for delivery points within the Czech Republic. PostGrid offers address validation for 245+ countries and territories, enabling you to serve national and international audiences.
Autocomplete and Standardization It does not offer these features because it is not a dedicated address validation platform. It offers up to 100 autocomplete suggestions for users to choose the correct address from the list. The solution also standardizes all delivery addresses to match the local post office guidelines.
Bulk Verification Česká Pošta cannot check multiple addresses because you have to look for the details for every location manually.  PostGrid can check up to a million delivery addresses simultaneously in only two hours.
Real-Time Checking It might take time for the post office to register new properties or update address changes, making it impossible to provide real-time checking. It checks all mailing addresses in real-time, constantly updating itself with new data from authoritative databases worldwide.
Pricing It is free, but you only get a list of postal codes and municipalities.  It has many reasonable pricing plans that you can select according to your needs.

How Does PostGrid Enable Businesses to Validate Mailing Lists and Ensure Accurate Shipping?

PostGrid helps businesses keep their address data clean, accurate, and up-to-date. It checks and fixes addresses to prevent errors that can cause lost mail or delivery delays. With bulk verification, you can process thousands of addresses simultaneously, saving time and effort. Also, PostGrid offers international verification to ensure addresses are correct, regardless of the country you’re mailing to.

If a customer moves, PostGrid updates their address using change-of-address data, so your mail always reaches the intended recipients. Our fuzzy address matching corrects small mistakes, like typos or missing details, ensuring the post office can identify the location and fulfill deliveries without issues. 

Furthermore, PostGrid’s Address Verification API offers geocoding to help you get exact location coordinates, which is helpful for mapping and logistics. You can also leverage reverse geocoding to locate your audiences and send marketing and other mail items. 

PostGrid offers all these features at low prices, making it affordable for businesses of all sizes. Whether you need to verify customer addresses, send mail without errors, or improve delivery accuracy, PostGrid makes the process easy and reliable. Hence, businesses can save money, avoid returned mail, and keep their customer data clean. 

Get a demo now to validate your mailing lists and ensure all mail items are headed in the correct direction!