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International Javascript Client for Address Capture

International Address Data

Verify Global Data via a single service on the Hopewiser Portal



Hopewiser’s International addressing service allows users to verify and capture addresses from 242 countries around the world. Capturing accurate, global customer addresses means you can quickly and easily process the data for deliveries, marketing purposes and business analysis.

Hopewiser’s International data is accessed within our cloud self-service Portal.

The API automatically updates so you will always have access to the latest International data available.





Enhanced Data

Improve Global Data Accuracy

Using International Address Data helps your business capture and verify global data which can lead to greater customer satisfaction and improved ROI.


Improve Data Input Speed

With Instant Access to one API which includes over 242 countries your business can correctly input an accurate address in seconds.


Increase Website Conversions

Ecommerce checkout and form conversions will increase, plus failed deliveries and mailings are reduced, which in turn improves brand satisfaction and business productivity.


There is no one Global address format. In almost every country, the address format differs. Even if the differences between the respective formats seem small, not only the correct elements of an address, but also their hierarchical alignment can play a big role. Only with the right software, can you be sure that a mailing gets to its addressee.

For instance, Germany has strict rules about receiving mail, which, if ignored, may result in your mail being returned to you with no attempt at delivery. When addressing mail to Germany, always:

  • Use the new five-digit postcode (using an old four-digit postcode will cause delay)
  • Put the postcode before the town name
  • Put the house number after the street name

In USA, if only the first half of the postcode/zipcode is known, this will be sufficient, although both parts are preferred. The abbreviation USA is also acceptable.

By using Hopewiser’s software you will be able to:

  • Support both alpha-2 and alpha-3 country codes
  • Where localised address formats are known and the coverage level permits, these are applied to the returned address label
  • Access accurate geocodes where available

So how do you ensure your International data is correct?

With over 242 countries available to validate, you need software that will format into the correct structure and secondly verify against available address data for the relevant country. Hopewiser’s Portal offers this service via a Desktop Client, REST API or JavaScript Client.

Hopewiser understand the differences in address quality from country to country, where the coverage level varies from full premise down to no accurate address information being available.

Sub-premise level data – 3 countries
Premise level data – 65 countries
Premise-range level data – 39 countries
Street level data – 40 countries
Locality level data – 43 countries
No data available – 52 countries

We can also provide accurate location information (geocoding) for more than 360 million addresses in over 107 countries.


The following datasets are a selection of what is also available. Please CONTACT US for the full list.

Ordnance Survey

Ordnance Survey

Ordnance Survey data available including AddressBase Premium.



Access to 1.8 million UK postcodes and 30 million residential and business addresses including Not Yet Built and Multiple Residence.


Office of National Statistics (ONS)

National Statistics Postcode Directory (NSPD) dataset with extra data such as Grid References.

companies house

Companies House

Company information from Companies House, including registered office address, filing history, accounts and annual return.