The ham radio call sign prefix for Alaska before statehood was KL7 , with other Alaska prefixes also used such as AL7, NL7, and WL7. Alaska later continued to use AL, KL, NL, and WL combinations after statehood, but KL7 is the commonly cited pre-statehood prefix.

Quick Scoop

In older U.S. amateur radio prefix charts, Alaska is listed under KL0-7, AL0-7, NL0-7, and WL0-7. A separate reference also states KL7 - Alaska (AK) explicitly, which matches the usual historical answer for the territory era.

Why it looks confusing

Ham prefixes changed over time, and Alaska’s assignments did not stay locked to just one pattern. That is why you may see references to KL7 in historical context and broader Alaska blocks like KL0-7 in later reference tables.

TL;DR

KL7 is the answer most people mean when they ask for Alaska’s ham radio prefix before it became a state.