{"id":"INC-twilio-h9z2vcwym575","kind":"incident","aliases":[],"related":[],"title":"Twilio: SMS Delivery Delays from a Subset of Twilio Short Codes to Cellularone NE Arizona United States","description":"The incident has been resolved and SMS delivery from a subset of Twilio Short Codes to Cellularone NE Arizona network subscribers in the United States is operating normally.","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":"resolved","published_at":"2026-10-21T17:10:54+00:00","first_seen_at":"2026-10-23T19:12:22+00:00","triaged_at":"2026-10-23T20:09:50+00:00","updated_at":"2026-10-23T20:09:50+00:00","category":"vendor","confidence":null,"triage":null,"analyst_status":null,"analyst_note":null,"search":"'arizona':15A,46C 'cellularon':13A,44C 'code':11A,42C 'delay':4A 'deliveri':3A,35C 'h9z2vcwym575':21A 'inc':19A 'inc-twilio-h9z2vcwym575':18A 'incid':23B,29C 'ne':14A,45C 'network':47C 'normal':55C 'op':24B 'oper':54C 'resolv':32C 'short':10A,41C 'sms':2A,25B,34C 'state':17A,52C 'subscrib':48C 'subset':7A,38C 'twilio':1A,9A,20A,22A,26B,40C 'unit':16A,51C 'vendor':27B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-21T17:10:54+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"statuspage","external_id":"twilio:h9z2vcwym575","url":"https://stspg.io/d5d07rxmhypd","severity":"medium","published_at":"2026-10-21T17:10:54+00:00","modified_at":"2026-10-22T10:57:12+00:00","first_seen_at":"2026-10-23T19:12:22+00:00","fetched_at":"2026-10-26T05:00:18+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"}