{"id":"INC-twilio-xjnvlzqphqx7","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 and MMS delivery 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":"2026-10-27T12:58:12+00:00","first_seen_at":"2026-10-27T12:59:15+00:00","triaged_at":"2026-10-27T13:00:50+00:00","updated_at":"2026-10-27T14:07:37+00:00","category":"vendor","confidence":null,"triage":null,"analyst_status":null,"analyst_note":null,"search":"'2':77C 'activ':57C 'anoth':74C 'avail':86C 'becom':85C 'code':12A,44C 'custom':29C 'delay':5A,37C,70C 'deliveri':3A,36C,62C,66C 'experienc':32C 'hour':78C 'inc':19A 'inc-twilio-xjnvlzqphqx7':18A 'incid':23B 'inform':84C 'investig':58C 'issu':60C 'long':11A,43C 'may':30C,63C,68C 'messag':61C 'mms':35C 'network':48C 'op':24B 'provid':73C 'receipt':4A,67C 'sms':2A,25B,33C 'soon':81C 'state':17A,53C 'subscrib':49C 'subset':8A,40C 'succeed':64C 'team':55C 'twilio':1A,10A,20A,22A,26B,28C,42C 'unit':16A,52C 'updat':75C 'vendor':27B 'xjnvlzqphqx7':21A","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T12:58:12+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"statuspage","external_id":"twilio:xjnvlzqphqx7","url":"https://stspg.io/8g1k2tbylkx8","severity":"medium","published_at":"2026-10-27T12:58:12+00:00","modified_at":"2026-10-27T14:28:09+00:00","first_seen_at":"2026-10-27T12:59:15+00:00","fetched_at":"2026-10-27T14:39:52+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"}