STIR/SHAKEN statistics from October 2024

The October 2024 STIR/SHAKEN and robocall statistics are now available. The data show the latest trends in robocalls, STIR/SHAKEN participation, and attestation level usage. Let’s have a look.

Signed robocalls by attestation level

Robocalls level

Figure 1. Signed Robocalls by Attestation Last 6 Months

Figure 1 shows signed robocalls by attestation level over the past six months. The numbers were mostly unchanged from the previous month.

STIR/SHAKEN participation and coverage

We measure STIR/SHAKEN participation changes in two ways:

1. The number of Originating Service Providers (OSPs) signing calls received by our customers,
2. Service providers authorized to do SHAKEN by the STI Policy Administrator (STI-PA),

SHAKEN signing level

Figure 2. Monthly Number of OSPs Sending Signed Calls

Figure 2 shows the number of Originating Service Providers (OSPs) observed signing calls was up 2.8% from the previous month, reaching 1,004.

The number of SHAKEN-authorized providers up slightly

Figure 3. STIR/SHAKEN Authorized Providers by Month

Figure 3 shows the number of SHAKEN authorized providers. There was a 2.3% increase of 31 SHAKEN-authorized providers in October.

These two measures show that the STIR/SHAKEN participation was up slightly after several months of level participation.

STIR/SHAKEN coverage

Signed calls at termination up slightly

Figure 4. The Percentage of Signed Calls at Termination Last 6 Months

Figure 4 shows the percentage of signed calls at termination for the past six months. This statistic was 49.3% in October, the same as the previous month.

Calls by attestation level

Figure 5. Percentage of Calls with SHAKEN Attestation Levels Last 6 Months

Figure 5 shows the percentage of calls signed by attestation level. Calls signed with full A-level attestation were 31.4% in October, down slightly from 32.3 in September. Calls signed with B-level attestation were 4.7%, up slightly from 4.1% in September. Calls signed with C-level attestation were 10.9%, up slightly from 10.8% in September.

Patterns among prolific robocall signers

Here are robocall and attestation statistics for the top 10 SHAKEN-authorized providers ranked by the percentages of signed calls identified as robocalls.

Robocalls from prolific robocall signers level

Figure 6. Robocall Percentage by Attestation—Prolific Robocall Signers by Robocall %

Figure 6 shows robocalls authenticated by the top 10 robocall signers ranked by robocall percentage over the past six months. In October, the robocall percentage for calls signed with A-level attestation by the top 10 prolific robocallers was 58.3%, up slightly from 59.6% in September. Prolific robocalls for calls signed with B-level attestation was 38.4%, down from 43.0% in September. These signers authenticate very few calls with C-level attestation.

Calls from prolific robocall signers

Figure 7. Call Percentage by Attestation—Prolific Robocall Signers

Figure 7 shows the percentages of calls signed by the top 10 robocall signers by authentication level. In October, they signed 91.6% of their calls with A-level attestation, 6.1% with B-level attestation, and 2.3% with C-level attestation.

Recap

• Robocalls were level.
• STIR/SHAKEN participation was up slightly.
• STIR/SHAKEN coverage was level, just under 50%.
• The percentages of robocalls signed by the top 10 prolific robocall signers were level for calls signed with A-level attestation, which is how they sign most of their calls. There was a drop in the percentage of robocalls among calls signed with B-level attestation.

TransNexus solutions

TransNexus is a leader in developing innovative software to manage and protect telecommunications networks. The company has over 25 years of experience in providing telecom software solutions including branded calling, toll fraud prevention, robocall mitigation and prevention, TDoS prevention, analytics, routing, billing support, STIR/SHAKEN, and SHAKEN certificate services.

Contact us today to learn more.