NCOALink® Limited Service Provider Licensees

This document provides a list of service providers and contact information for NCOA^Link®. These providers receive 18 months of change-of-address (COA) data on a weekly basis from the USPS^®. For the full 48 months of COA data refer to the NCOA^Link Full Service Provider Licensees.

Domestic Merchant Returns API: User Guide

This user guide provides examples of XML transactions to the USPS Merchant Returns web service and guidance for installation.

Publication 401: Guide to the Manifest Mailing System

This publication provides information on the Manifest Mailing System, which automates the documentation of postage and fees for all pieces in a mailing paid via permit imprint indicia.

NCOALink® with ANKLink® Service Providers

This document provides a list of service providers and contact information for NCOA^Link® with ANK^Link®. These service providers have 18 months of Change-of-address (COA) data from the USPS^®. In addition, they inform mailers if a move has occurred in months 19 - 48, but do not provide the new address. The mailer will need to contact the Full Service Provider licensees to obtain the new address data for months 19 - 48.

June 2024 Nixie Volume

This spreadsheet contains the UAA statistics for June 2024.

Automated Zone Indicator (AZI) Table

The AZI table lists each five-digit ZIP Code™ and is an indicator of the type of processing that typically takes place on letter mail destined for each ZIP Code. Each number in the file is a ZIP Code appended with a numeric zone indicator. The five numeric indicators are as follows:

1. Two Pass Zones: Automated two-step sector/segment at mail processing facilities
2. 876 Carrier Route Sort Zones: Automated incoming secondary carrier route sorting at plants
3. Carrier Route Barcode Sorter (CSBCS) Zones: Automated walk sequence sorting on CSBCS machines at delivery units
4. Delivery Barcode Sorter (DBCS) Zones: Automated walk sequence sorting on DBCS machines at plants [i.e., sectional center facilities (SCFs)] or at delivery units
5. Manual/Mechanized Zones: No automated sorting; no tracking code scans should be generated from facilities matched to these ZIP Codes

Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Operation Codes List

This spreadsheet provides a list of operation codes (opcodes), also known as Scan Event Codes, for the IV-MTR application.

MPE (Mail Processing Equipment) Service Provider Licensees

Marketing contact information for certified Mail Processing Equipment (MPE) licensees 

SuiteLink® Developers (PDF)

This document is for Suite^Link® developer licensees marketing contact information.

SuiteLink® Distributors (PDF)

This document is for the Suite^Link® interface and data distributor licensees marketing contact information.