{"uid":"cap_QECqVIeJOuL2wHUENkyy0","slug":"numberintel-phone-number-intelligence-934d1dd9","name":"NumberIntel Phone Number Intelligence","description":"Phone number static intelligence: E.164 normalization, format validity, NANP plausibility checks, geography, timezones and current local time for any US/CA number.","url":"https://numberintel.dev/v1/number","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["number"],"properties":{"number":{"type":"string","description":"NANP phone number, any common format (E.164 preferred)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"geo":{"type":["object","null"]},"npa":{"type":"string"},"e164":{"type":"string"},"npa_known":{"type":"boolean"},"plausible":{"type":"boolean"},"timezones":{"type":"array","items":{"type":"string"}},"toll_free":{"type":"boolean"},"premium_rate":{"type":"boolean"},"valid_format":{"type":"boolean"}}}}}}},"responseSchema":{"type":"json","example":{"geo":{"state":"US-AZ","region":"Arizona","country":"US"},"npa":"602","e164":"+16022966261","npa_known":true,"plausible":true,"timezones":["America/Phoenix"],"toll_free":false,"local_time":[{"tz":"America/Phoenix","time":"Sun 20:30"}],"premium_rate":false,"valid_format":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_RfM3IFf-HWXi1mcohPmwh","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up NANP phone number metadata including geographic region, timezone, toll-free/premium status, and format validity.","exampleAgentPrompt":"Can you look up the phone number +16022966261 and tell me what US state and timezone it belongs to, and whether it's toll-free or a premium rate number?","exampleUseCases":[{"title":"Screening inbound leads by region","prompt":"Before I call back this lead, can you check the number 602-296-6261 and tell me what state it's from and what their local time is right now?"},{"title":"Flagging premium rate numbers in CRM","prompt":"I have the number +18009876543 in our CRM — can you tell me if it's a toll-free number or a premium rate line so I know how to classify it?"},{"title":"Timezone-aware scheduling for contacts","prompt":"What timezone does the phone number +14155552671 belong to, and is it a valid, plausible North American number?"}],"resultDescription":"Returns a JSON object with the E.164-normalized number, NPA area code, geographic data (country, state/region), list of applicable timezones, current local time per timezone, boolean flags for toll-free, premium rate, format validity, plausibility, and whether the NPA is a known area code.","failureModes":["Invalid or non-NANP number format returns valid_format: false with null/empty geographic fields","Unknown or unrecognized area code returns npa_known: false with null geo data","Missing required 'number' query parameter returns a 400-level error","Payment failure or insufficient USDC balance on Base returns 402 Payment Required","Non-NANP international numbers (outside US/Canada/Caribbean) are not supported and may return implausible results"],"whenToPreferThis":"Use this endpoint when you need structured intelligence about a North American (NANP) phone number — specifically area code metadata, geographic attribution, timezone resolution, toll-free/premium classification, and format validation — and when per-call micropayment via x402/USDC is acceptable. Prefer this over generic phone validation APIs when you need timezone-aware local time or geo-region data tied to the area code, or when integrating into a USDC-on-Base payment flow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:31:20.488Z","isFirstParty":false}