Signed-call coverage holds near 54% for a third month

TransNexus published its September STIR/SHAKEN statistics on October 5. Signed calls at termination were 54.5%, against 54.8% in August, and the company says the figure “has been hovering around 54% for three months.” Robocalls were 3.4% of all calls, up from 3.2%. They were 1.6% of A-attested calls, 4.6% of B and 7.8% of C. As a share of all calls, A-level attestation fell to 32.8% from 33.8%, B to 5.5% from 5.7%, and C rose to 9.3% from 8.0%.

The ten SHAKEN-authorized providers with the highest robocall percentage signed 75% of their calls at A-level, 5% at B and 20% at C. In August the same ranking showed 71% A and 27% C. The number of originating providers observed signing calls rose 2.4% and the number of SHAKEN-authorized providers rose 1.6%. TransNexus gives neither count.

The data are calls received by the hundreds of providers running TransNexus products, not the whole network. Coverage in the series went from 45.6% in May to 54.3% in July and has not moved since.