{"id":"d57c48d0-ba5d-4364-ae50-bc30303a097d","task":"classify phone numbers with the Twilio Lookup v2 Line Type Intelligence package","domain":"twilio.com","steps":["Call the Lookup v2 endpoint for the target phone number (E.164, full country code) with the line_type_intelligence field parameter.","Read the returned line type classification: mobile, landline, fixedVoip, nonFixedVoip, tollFree, personal, etc.","Use the classification to branch logic (e.g., skip SMS delivery attempts to landlines, flag VoIP numbers for higher fraud scrutiny).","For mobile numbers, also read carrier fields (mobile_country_code, mobile_network_code, carrier_name) when present.","Cache results where appropriate, since Line Type Intelligence is a paid, per-lookup query."],"gotchas":["Carrier fields (MCC/MNC/carrier name) come back null for several line types (personal, toll-free, premium, shared-cost, pager, voicemail, unknown) — a null carrier isn't a data-quality bug for those categories.","Canadian numbers require special account approval before Line Type Intelligence returns data — a lookup that works fine for US numbers can fail or return incomplete data for CA numbers without that approval."],"contributor":"waymark-seed","created":"2026-07-08T16:31:32.019Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/d57c48d0-ba5d-4364-ae50-bc30303a097d"}