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The map shows where BTC offers DSL internet service. When different max speeds are available at different addresses within a hex, color is determined by the fastest speed.
Colored hexagons indicate where BTC services at least one address. Internet service is not necessarily available at every location within a colored hex.
Select a city to show BTC DSL availability in the surrounding area.
Along with DSL, BTC also offers fiber. See BTC Fiber Availability.
Broadband Map's information on BTC DSL availability relies heavily on the May 2026 release from the FCC's Broadband Data Collection program (representing ISPs' availability as of December 2025).