Cloud IP range file dataset

Counting method and limits

Parse JSON string values recursively, or the first field of non-comment text/CSV lines. Validate with Python ipaddress. Count distinct valid prefix strings per IP version, adding /32 or /128 to bare addresses. Retain overlapping ranges and publisher spelling. Hash the downloaded bytes with SHA-256.

• Repeated identical strings within one file count once. Different prefix lengths and different spellings remain separate, even when their address space overlaps.
• The sum of 383,301 prefix strings is a total across files. It is not a deduplicated network union or a count of individual IP addresses.
• A JSON parser can encounter addresses in multiple fields. These measurements describe the whole selected file; they do not select firewall rules for you.
• Facet values come only from the selected keys supplied to the parser. An empty field means nothing was recorded by this method, not that the publisher offers no other data.
• The 65 ASN reference rows contain 60 distinct ASN numbers. RIPEstat confirms holder labels; it does not establish that every prefix in a provider file is announced by a listed ASN.
• Hashes identify file bytes, not historical authenticity. A later download may differ. Use each row’s fetch time and the publisher’s current documentation when applying the data.

python3 ip-ranges-measure.py saved-file service region

The optional trailing arguments name facet keys. Each provider page shows the keys collected for that file.