{"id":"INC-twilio-q8lt1pxxvmxh","kind":"incident","aliases":[],"related":[],"title":"Twilio: SMS Delivery Receipt Delays from a Subset of Twilio Long Codes to AT&T United States","description":"Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Long Codes to AT&T network subscribers in the United States. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 2 hours or as soon as more information becomes available.","summary":null,"severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Twilio","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["incident","ops","sms","twilio","vendor"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-10-27T03:53:24+00:00","first_seen_at":"2026-10-27T03:55:25+00:00","triaged_at":"2026-10-27T03:57:20+00:00","updated_at":"2026-10-27T04:56:15+00:00","category":"vendor","confidence":null,"triage":null,"analyst_status":null,"analyst_note":null,"search":"'2':76C 'activ':56C 'anoth':73C 'avail':85C 'becom':84C 'code':12A,43C 'custom':29C 'delay':5A,36C,69C 'deliveri':3A,34C,61C,65C 'experienc':32C 'hour':77C 'inc':19A 'inc-twilio-q8lt1pxxvmxh':18A 'incid':23B 'inform':83C 'investig':57C 'issu':59C 'long':11A,42C 'may':30C,62C,67C 'messag':60C 'network':47C 'op':24B 'provid':72C 'q8lt1pxxvmxh':21A 'receipt':4A,35C,66C 'sms':2A,25B,33C 'soon':80C 'state':17A,52C 'subscrib':48C 'subset':8A,39C 'succeed':63C 'team':54C 'twilio':1A,10A,20A,22A,26B,28C,41C 'unit':16A,51C 'updat':74C 'vendor':27B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T03:53:24+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"statuspage","external_id":"twilio:q8lt1pxxvmxh","url":"https://stspg.io/yp9x8w2sjtx0","severity":"medium","published_at":"2026-10-27T03:53:24+00:00","modified_at":"2026-10-27T05:09:31+00:00","first_seen_at":"2026-10-27T03:55:25+00:00","fetched_at":"2026-10-27T05:59:31+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}