District Of Columbia

District Of Columbia is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Government Offices State
• Telephones Answering Service

North American Industry Classification System (NAICS) Categories:

• Telephone Answering Services
• Executive Offices > Executive Offices, State & Local > Government Offices State

Standard Industry Classification (SIC) Categories:

• Business Services, Nec > Telephone Answering & Messenger Services > Telephone Answering Service
• Executive Offices > Executive Offices, State & Local > Government Offices State