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At Block our main concern is to provide quality equipment and prompt, courteous customer service. Block Communications is family owned and operated. Interlock devices can be installed in any and all vehicles. We have done installations in vehicles that date from 1932 to 2017. All manufacturers including but not limited to Porsche, Jag, BMW, Audi, Chevy, Ford, GMC, Lexus, Chrysler, Dodge, Jeep, Mercedes, and more...... The Draeger Interlock XT has the easiest test in the Interlock market. One company, one focus. Ignition Interlocks No sub-contractors, No worries.

Block Communications Questions

The Block Communications annual revenue was $6 million in 2026.

Block Communications is based in Doylestown, Pennsylvania.

The NAICS codes for Block Communications are [33, 3363, 33632, 336].

The SIC codes for Block Communications are [369, 36].

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