The ECR Code
The Enhanced Correction Result (ECR) code describes the level of precision of the latitude/longitude coordinates returned for the address. The code consists of a prefix followed by a dash then the body of the code.
The prefix always begins with "EL" followed by a number from 1 to 5 indicating the overall level of precision:
- 5—Point geocode
- 4—Street centroid
- 3—Postcode centroid
- 2—City centroid
- 1—Region centroid
The body of the code identifies the components that were used to match the address to a geocode. Note that the body consists of letters and numerals. Here's what they mean:
- P—Premise/house number, building or PO box
- S—Street
- T—City
- R—Region/state
- Z—Postal code
- C—Country
There are only two numeric options in the body: 4 or 0
- 4—The component data was available to make the geocode-address match.
- 0—The component date was not available.
For example: EL4-P0S4T4R4Z4C4
In this example, the 0 following the P tells us that premise/house number data was not available to make this address match; everything from street to country, however, was used in the assignment.