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Availability of DSL internet, regardless of provider, is shown in the map. Change between a map of the max DSL speeds and a map of the number of DSL providers using the buttons at the bottom of the map.
DSL (Digital Subscriber Line) delivers internet over ordinary telephone lines. Speeds are modest, typically 25 to 150 Mbps, and they fall off the farther a home sits from the provider's equipment. On the plus side, the line isn't shared with neighbors, so performance tends to stay steady through the day.
Many ISPs are retiring their DSL service. Today, DSL's main role is filling in where cable and fiber haven't been built.
Availability is reported at the level of hexagons rather than addresses. Not every address is necessarily serviced within a hexagon where a provider reports availability.
DSL availability data comes primarily from the May 2026 release of the FCC's Broadband Data Collection program (representing ISPs' availability as of December 2025).