Allegiance Telecom

Allegiance Telecom is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Telecommunications Telephone Equipment & Systems Supplies & Parts
• Telecommunications Services

North American Industry Classification System (NAICS) Categories:

• Radio, Television, And Other Electronics Stores > Telephone & Communication Equipment
• Wired Telecommunications Carriers > Telecommunications Services

Standard Industry Classification (SIC) Categories:

• Telephone Communications, Except Radio > Telecommunications Services
• Miscellaneous Retail Stores, Nec > Telephone & Communication Equipment