Geo Service
WSDL
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This service is a completely new API that evolved from the original Zip Codes web service.
It suppors most of the same functions, except area code lookup.
It simplifies and aligns various API functions and adds full support for REST with JSON and XML as well as traditional SOAP.
This service requires a subscription.
Paid monthly and yearly subscriptions as well as free evaluation plans are available.
Zip Code Service
WSDL
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This service is the evolution of the old Zip Codes web service.
It enhances zip code lookup by adding support for cities, towns, villages, etc.
Now you can find near-by zip codes and cities, find distance
between zip codes and cities, get coordinates of zip codes and cities.
The service also supports user-defined places. You can upload a list of your locations
and perform searches on them similarly to zip codes and cities.
This service requires a subscription.
Paid monthly and yearly subscriptions as well as free evaluation plans are available.
Zip Code Service (old interface)
NOTE: This service is being deprecated.
WSDL
Zip Code service contains functionality to search for near-by zip codes within a specified distance.
The service also supports user-defined places. You can upload a list of your locations
and perform searches on them similarly to zip codes and cities.
This service requires a subscription.