{"rid":"data-apis/iptoasn","card":{"rid":"data-apis/iptoasn","eid":"iptoasn","topic":"data-apis","slug":"iptoasn","provider":"IPtoASN","url":"https://iptoasn.com/","domain":"iptoasn.com","category":"IP to ASN and country database download","tier":"Free database download","verdict":"qualifies","vorder":0,"grp":"usable","self_hosted":0,"confidence":"measured","binding":"none","identity_kind":"anonymous","identity_basis":"stated","needs_card":0,"needs_phone":0,"needs_id":0,"needs_institution":0,"country":null,"crypto":null,"interfaces":null,"egress_metered":0,"per_object_bytes":8697031,"retention_days":null,"verified_at":"2026-11-02T00:23:42.887Z","verified_basis":"live","checked_on":"2026-11-02","stale_on":"2027-01-02","n_evidence":10,"usd_month":null,"usd_per_tb_month":null,"summary":"free IP to ASN and IP to country database files, updated hourly: IPv4, IPv6 and combined TSV files in gzip, no account; the hosted API was phased out on Dece...","duplicate_of":null,"n_unknown":2,"free_unit":"unlimited"},"record":{"topic":"data-apis","slug":"iptoasn","provider":"IPtoASN","url":"https://iptoasn.com/","category":"IP to ASN and country database download","tier":"Free database download","free_tier":{"stated":"free IP to ASN and IP to country database files, updated hourly: IPv4, IPv6 and combined TSV files in gzip, no account; the hosted API was phased out on December 31, 2020","unit":"unlimited","metered_on":"none","source_url":"https://iptoasn.com/","read_on":"2026-11-02","notes":"the IPv4 to ASN file ip2asn-v4.tsv.gz was 8,697,031 bytes with HTTP 200 when probed."},"per_object_cap":{"stated":"ip2asn-v4.tsv.gz is 8,697,031 bytes","bytes":8697031,"source_url":"https://iptoasn.com/data/ip2asn-v4.tsv.gz"},"retention":{"stated":"each file is the current snapshot; the page says it is updated hourly","days":null,"source_url":"https://iptoasn.com/"},"egress":{"terms":"not applicable: static files served through Cloudflare with no published meter","metered":false,"free_allowance":null,"price_per_tb":null,"source_url":"https://iptoasn.com/"},"interface":["unknown"],"interface_detail":"plain HTTPS download of gzip-compressed TSV files from https://iptoasn.com/data/ (ip2asn-v4, ip2asn-v4-u32, ip2country-v4, ip2country-v4-u32, ip2asn-v6, ip2country-v6 and ip2asn-combined) with the columns range_start, range_end, AS_number, country_code, AS_description; the interface vocabulary has no term for a file download (https-download)","endpoint":"https://iptoasn.com/data/ip2asn-v4.tsv.gz","tooling":"curl or wget and gunzip, any TSV reader or SQL loader; the author's iptoasn-webservice source turns the files into a lookup API, which the user installs and runs on a rented or free machine and which is the last resort after the downloads","chaining":"The one free ASN and country mapping with no account and no per-request limit, usable as a local join table in a pipeline. Bulk path: the files themselves, IPv4 to ASN 8,697,031 bytes gzipped.","limits":[],"binding":"none","binding_note":"static files with no published download limit.","identity_cost":{"kind":"anonymous","detail":"no account; plain HTTPS downloads","country":null},"reliability_note":"the hosted API was phased out on 2020-12-31 due to increasing traffic; ip2asn-v4.tsv.gz had Last-Modified Sun, 01 Nov 2026 09:38:42 GMT in an answer dated Mon, 02 Nov 2026 10:42:50 GMT, while the page says the data is updated hourly","confidence":"measured","confidence_note":"The IPv4 to ASN file was downloaded in full on 2026-11-02 (HTTP 200, 8,697,031 bytes) and the page was quoted; the other files were not downloaded and the hourly update claim was observed once, not tracked.","evidence":[{"url":"https://iptoasn.com/","date":"2026-11-02","proved":"a free IP to ASN and country database, updated hourly","capture":"sha256:5f78aa8d3fefb10a7d7416e360d1795969add4386e47ddb6a6e5839f30a0e93c","quote":"Free IP to ASN & Country mapping database. Updated hourly."},{"url":"https://iptoasn.com/","date":"2026-11-02","proved":"the hosted API was phased out on 2020-12-31","capture":"sha256:5f78aa8d3fefb10a7d7416e360d1795969add4386e47ddb6a6e5839f30a0e93c","quote":"The public API was phased out on December 31, 2020 due to increasing traffic."},{"url":"https://iptoasn.com/","date":"2026-11-02","proved":"the databases stay downloadable and an own API server is the stated route","capture":"sha256:5f78aa8d3fefb10a7d7416e360d1795969add4386e47ddb6a6e5839f30a0e93c","quote":"You can still download the databases above and [run your own API server](https://github.com/jedisct1/iptoasn-webservice) for production use."},{"url":"https://iptoasn.com/","date":"2026-11-02","proved":"the data is under the Public Domain Dedication and License v1.0","capture":"sha256:5f78aa8d3fefb10a7d7416e360d1795969add4386e47ddb6a6e5839f30a0e93c","quote":null},{"url":"https://iptoasn.com/","date":"2026-11-02","proved":"the IP to ASN file columns","capture":"sha256:5f78aa8d3fefb10a7d7416e360d1795969add4386e47ddb6a6e5839f30a0e93c","quote":"`range_start range_end AS_number country_code AS_description`"},{"url":"https://iptoasn.com/","date":"2026-11-02","proved":"a combined IPv4 and IPv6 file is offered","capture":"sha256:5f78aa8d3fefb10a7d7416e360d1795969add4386e47ddb6a6e5839f30a0e93c","quote":"*   [Download ip2asn-combined.tsv.gz](https://iptoasn.com/data/ip2asn-combined.tsv.gz)"},{"url":"probe:https://iptoasn.com/data/ip2asn-v4.tsv.gz","date":"2026-11-02","proved":"the IPv4 to ASN file answered HTTP 200","capture":"sha256:bcfb577227d09b49fcc33790d22d90757d5c0b6d663432c84defdf10faa8003a","quote":"\"status\": 200,"},{"url":"probe:https://iptoasn.com/data/ip2asn-v4.tsv.gz","date":"2026-11-02","proved":"the IPv4 to ASN file is 8,697,031 bytes","capture":"sha256:bcfb577227d09b49fcc33790d22d90757d5c0b6d663432c84defdf10faa8003a","quote":"\"bytes\": 8697031,"},{"url":"probe:https://iptoasn.com/data/ip2asn-v4.tsv.gz","date":"2026-11-02","proved":"the file carried a Last-Modified of 2026-11-01 09:38:42 GMT","capture":"sha256:bcfb577227d09b49fcc33790d22d90757d5c0b6d663432c84defdf10faa8003a","quote":"\"last-modified\": \"Sun, 01 Nov 2026 09:38:42 GMT\""},{"url":"probe:https://iptoasn.com/data/ip2asn-v4.tsv.gz","date":"2026-11-02","proved":"the answer was dated 2026-11-02 10:42:50 GMT","capture":"sha256:bcfb577227d09b49fcc33790d22d90757d5c0b6d663432c84defdf10faa8003a","quote":"\"date\": \"Mon, 02 Nov 2026 10:42:50 GMT\""}],"verdict":"qualifies","verified_at":"2026-11-02T00:23:42.887Z","notes":"Free requests: unmetered (static files). Rate limit: none published. The data v1.0. Bulk path: the TSV files, IPv4, IPv6 and combined. Last resort: run the author's API server over the files.","extras":{"bulk_path":"the gzip TSV files (IPv4, IPv6, combined)","free_requests":"unmetered downloads"}},"claims":[{"path":"$.free_tier","kind":"has-free-tier","num":1,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.free_tier.stated","kind":"free-quota","num":null,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"unparsed"}],"unknown":[["$.evidence[3].quote","withheld"],["$.interface","interface-unknown"]],"history":[],"drift":[]}