Twilio Heightened Awareness Period (HAP) – November 24, 2025 - January 5, 2026

Between Monday, November 24, 2025 and Monday, January 5, 2026, Twilio will enter a Heightened Awareness Period (HAP) to help ensure reliable message delivery during peak traffic times, such as Black Friday and Cyber Monday. 

During this period, message sending rates to U.S. destinations will be monitored and may be limited at the account level for toll-free, short code, and 10DLC numbers.

Accounts that send high volumes of messages from short codes or toll-free numbers may be temporarily migrated to Market Throughput during the HAP; customers will be notified via email if their account is affected. Market Throughput does not affect 10DLC numbers, which will continue to live on Account Based Throughput.