U S Postal Service-Zip Code Information

U S Postal Service-Zip Code Information is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Information & Referral Services
• Postal Services

North American Industry Classification System (NAICS) Categories:

• Postal Service
• All Other Business Support Services > Business Information & Referral Services

Standard Industry Classification (SIC) Categories:

• United States Postal Service
• Business Services, Nec > Business Information & Referral Services