SmartyStreets

What Is

Address AutocompleteArrow Icon
Address Autocomplete is a feature that suggests street addresses to users as they type an address into a form.
Address CleansingArrow Icon
Address cleansing is the collective process of standardizing, correcting and then validating a postal address.
Address Standardization and ValidationArrow Icon
Address standardization and validation are two of the main services SmartyStreets provides.
Address Verification GlossaryArrow Icon
The process of changing addresses to adhere to USPS standards. The USPS defines a standardized...
AVS vs. Address Validation: What's the Difference?Arrow Icon
It's easy to explain the difference between AVS and address validation.
County FIPS CodesArrow Icon
County FIPS Codes are 5-digit numbers used to designate each county across the United States. FIPS Codes are...
Finding a Quality Address Validation APIArrow Icon
There are two main qualities that will help you determine if an address validation API is a good...
Free KnowledgeArrow Icon
Knowledge is important. In some mathematical representations, it's equal to power. It's the difference...
GeocodingArrow Icon
Geocoding is the process of finding geographical coordinates for an address or place that is in...,
How to Find a County By Using a ZIP CodeArrow Icon
Every mailing address is located within a specific county AND a specific ZIP Code. Therefore...
How to use APIs for Address Validation, Standardization and moreArrow Icon
An address API is an application programmatic interface (API) that processes postal addresses.
How to Validate an Address Using [Programming Language of Your Choice]Arrow Icon
A lot of programmers want to know how to validate an address using Regex, JavaScript, .Net, PHP...

LACSLink®

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LACSLink® matches addresses against a list of rural route, highway route, and box number addresses...

PO Box–Only ZIP CodesArrow Icon
Is there a list of ZIP Codes where the USPS doesn't deliver to physical addresses? Yes.
Rejected address? What does that mean?Arrow Icon
I just ran some rejected addresses. What does that mean?
Unique ZIP CodesArrow Icon
Some organizations (such as large businesses, universities, or government agencies) receive...
Validation / VerificationArrow Icon
Address validation is the process of checking a mailing address against an authoritative database...
What are Geocodes & what is Geocoding?Arrow Icon
A geocode is the GPS coordinates (or the latitude and longitude) of a physical address. Geocoding is the...
What Are Postal Codes?Arrow Icon
Postal codes are strings of numbers (and sometimes letters) that help postal services determine where...
What are Service Level Agreements?Arrow Icon
An SLA (Service Level Agreement) is a part of a standardized service contract in which specific...
What are URLs?Arrow Icon
URL stands for Uniform Resource Locator, and is a way to reference a resource like a web page on...
What are ZIP+4 Codes?Arrow Icon
ZIP+4 Codes are the last 4 digits of a nine-digit ZIP Code. A nine-digit ZIP Code is made of two parts.
What is Address Standardization?Arrow Icon
Address standardization is the process of formatting an address so that it matches the approved format...
What is an "Address Lookup"?Arrow Icon
When you submit an address to our API, we return data about it. Each submission to our API counts...
What is an API?Arrow Icon
API is short for "Application Program Interface". An API is a set of programmatic instructions that...
What is an "Inactive" Address?Arrow Icon
The US Postal Service labels some addresses "no-stat." At SmartyStreets, we call them "inactive."
What is Data Governance?Arrow Icon
Data Governance is a set of principles and standards that dictate the organization and unification of...
What is Canada Post?Arrow Icon
Canada Post is the Canadian equivalent of the USPS in the United States. They serve as the postal...
What is CASS Processing?Arrow Icon
What is CASS? Coding Accuracy Support System (CASS) is a certification system from the...
What is CASS?Arrow Icon
CASS stands for The Coding Accuracy Support System (CASS). It's a tool created and used by the...
What is County Data?Arrow Icon
A county is the largest geographic division of local government. According to the National association...
What is Delivery Point Validation (DPV)?Arrow Icon
Delivery Point Validation™ (DPV®) is the process of verifying that an address is actually deliverable...
What is Deutsche Post?Arrow Icon
Deutsche Post AG, also known as Deutsche Post DHL, is Germany's primary postal delivery service.
What is HTTP?Arrow Icon
HTTP stands for "HyperText Transfer Protocol," and it's the computer communication protocol used...
What is International Address Validation?Arrow Icon
International address validation is the process of comparing a non-US address against an...
What is La Poste and the French Postal System?Arrow Icon
Postal codes in France are similar to ZIP Codes in the United States. For example, the postal code/ZIP...
What is RDI, and Where Can I Find It?Arrow Icon
RDI stands for "Residential Delivery Indicator". It tells you if a mailing address is a residential or business...
What is Royal Mail?Arrow Icon
Royal Mail plc is the primary postal service in the United Kingdom. It provides postal delivery...
What is Reverse Geocoding?Arrow Icon
Reverse geocoding starts with a latitude and longitude point, and gives you back the corresponding street address...
Where Is Your Error?Arrow Icon
Despite best efforts, errors happen. It can be helpful to know where those errors are happening.
Why Address Standardization during Data Entry is Essential to Quality DataArrow Icon
Many problems with the quality of address data can be eliminated by simply validating and...
Why Is Address Verification Important?Arrow Icon
Before you can understand why address verification is important to you and your company, you must...

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