Priority Mail service from USPS that includes tracking and delivery in 1-3 business days domestic USA.
https://www.usps.com/ship/priority-mail.htm
Shipping Providers
Get access to data on 78,158 websites that are USPS Priority Mail Customers. We know of 34,152 live websites using USPS Priority Mail and an additional 44,006 sites that used USPS Priority Mail historically and 31,929 websites in the United States.
Get a list of 78,158 websites using USPS Priority Mail which includes location information, hosting data, contact details, 34,152 currently live websites and an additional 56,414 domains that redirect to sites in this list. 44,006 sites that used this technology previouslyand 31,929 websites in the United States currently using USPS Priority Mail.
Countries
Financial
Group
Region