Self-Hosted SHAKEN Validation! Unlimited lookups, USD$???/mth Learn More
Currently there are two USA Test numbers, graciously donated by Clearly IP. These allow you to check your attestation level as they are routed through different carriers.
Your attestation test results should be exactly the same via any of these numbers. If there is any difference, please speak to YOUR carrier, and get them to check propogation of their Identity headers.
As the Canadian SHAKEN/STIR implementation is in its infancy, there is no ability to provide a test number. When it progresses, test numbers will be made available.