US phone carrier lookup: carrier of record, line type (mobile / landline / VoIP / pager), whether the number can be in service at all, rate center and risk hints for any US or US-territory number. NANPA public numbering data refreshed weekly; block-level, so ported numbers keep their original carrier.
# 1. Ask the endpoint what it costs (no payment, no wallet needed): curl -i -X GET 'https://numberintel.dev/v1/carrier' # -> HTTP/1.1 402 Payment Required # the response carries the price, asset and pay-to address. # 2. Pay and retry with any x402 client: npx x402-fetch 'https://numberintel.dev/v1/carrier'
Endpoint: https://numberintel.dev/v1/carrier. Operated by numberintel.dev, not by Animica. Price and availability were correct at the last probe on 2026-10-01 and are set by the operator, who may change them.
Signed settlement attestation: we make a REAL x402 purchase from your target endpoint (up to $0.1), grade the delivered response against its advertised schema, …
x402 conformance preflight of any endpoint: parses the 402 envelope, lints accepts[] (atomic units, payTo, network), reports the quote, Bazaar extension presenc…
Bulk phone list scrub: up to 100 US numbers per call. Per-number validity, in-service possibility, line type (mobile/landline/VoIP), SMS likelihood, carrier and…
NANP area code lookup: region, state, country, timezones, current local time, toll-free/premium/geographic flags. Static authoritative dataset (450 NPAs), sub-1…
Phone number static intelligence: E.164 normalization, format validity, NANP plausibility, geography, timezones, current local time for US/CA numbers.