{"uid":"cap_EwrSeHpGTTxc55q0Px5zL","slug":"411data-io-reverse-phone-lookup-a5a25c5b","name":"411data.io Reverse Phone Lookup","description":"Reverse phone lookup (bill-on-match). Returns person name, emails, and addresses tied to the number.","url":"https://411data.io/api/v1/enrich/phone","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"phone":{"type":"string","maxLength":40,"minLength":5}}},"responseSchema":{"type":"json","example":{"data":{"people":[{"name":"James W Cole Sr","wp_id":"PX3vrMbpE3k","emails":[],"phones":[{"type":"unknown","label":"unknown","score":71,"number":"(724) 206-0094","source":"https://411data.io/person-hunt","sources":[{"url":"https://411data.io/person-hunt","label":"person hunt","wp_id":"PX3vrMbpE3k","vendor":"whitepages"}]}],"source":"https://411data.io/person-hunt","aliases":["James Cole Jr","Jim W Cole"],"addresses":[],"job_title":null,"relatives":[],"company_name":null,"linkedin_url":null}],"metadata":{"page":1,"page_size":5,"query_mode":"reverse_phone","result_count":5}},"input":{"phone":"+17242060094"},"billed":true,"vendor":"whitepages","matched":true,"endpoint":"enrich/phone","cache_hit":false}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.33","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.33/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.33","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.33","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_XRg624vLx_EfLCc8mReox","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.33","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Given a phone number, returns the associated person's name, email addresses, and physical addresses — billed only on a match.","exampleAgentPrompt":"Can you do a reverse phone lookup on +1-415-555-0192 and tell me the person's name, any email addresses, and their current address?","exampleUseCases":[{"title":"Identify unknown caller","prompt":"Someone called me from 312-867-5309 and left no voicemail — can you look up who that number belongs to and give me their name and address?"},{"title":"Sales lead contact enrichment","prompt":"I have a lead's phone number, 646-555-0147 — can you enrich it to get their full name, email, and mailing address so I can add them to my CRM?"},{"title":"Verify contact info before outreach","prompt":"Before I reach out, can you reverse-lookup the phone number 408-555-0233 to confirm the name and email we have on file actually match what's tied to that number?"}],"resultDescription":"Returns the matched person's full name, one or more associated email addresses, and one or more physical/mailing addresses linked to the phone number. Response is billed at $0.33 USDC only when a match is found (bill-on-match model).","failureModes":["No match found for the number — no charge applied but empty result returned","Invalid or malformed phone number format — request rejected with validation error","Number is unlistable (VOIP, burner, or newly issued) — low or no match rate","Rate limiting or quota exceeded — 429 error","Service unavailable — 5xx error"],"whenToPreferThis":"Use this endpoint when you have a phone number and need to identify the person behind it — their name, email, or address — without paying unless a match is returned. Preferred over person-search endpoints when the phone number is your primary identifier. Best for lead enrichment, unknown-caller identification, or contact verification workflows where cost efficiency (bill-on-match) matters.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:34:20.027Z","isFirstParty":false}