research: add range-based global IP registry

2026-07-22 10:42:37 +00:00
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+# Global IP range registry
+
+This folder is the human-readable registry of IP knowledge collected by this repository. It is organized by **network range**, not by one file for every individual address: IPv4 alone contains 4,294,967,296 addresses, and registration and routing facts normally apply to prefixes.
+
+## Filename convention
+
+```text
+<registry>--<network-address-with-hyphens>--<prefix-length>.md
+```
+
+Examples:
+
+```text
+iana--0-0-0-0--8.md
+apnic--1-1-1-0--24.md
+```
+
+The parts mean:
+
+- `registry`: authoritative number registry currently responsible for the record (`iana`, `afrinic`, `apnic`, `arin`, `lacnic`, or `ripe-ncc`);
+- `network-address-with-hyphens`: canonical network address with dots replaced by hyphens;
+- `prefix-length`: CIDR range number without `/`.
+
+IPv6 filenames use the same rule, with colons replaced by hyphens and compressed notation expanded to avoid ambiguous names.
+
+## Current coverage
+
+| Range | Registry | Classification | Known exact addresses | Record |
+|---|---|---|---|---|
+| `0.0.0.0/8` | IANA | Special-purpose | `0.0.0.0` | [record](iana--0-0-0-0--8.md) |
+| `1.1.1.0/24` | APNIC | Public unicast | `1.1.1.1` | [record](apnic--1-1-1-0--24.md) |
+
+This is **not yet a list of all global ranges**. It contains the two ranges investigated so far. The expansion plan is in [`research/ip-network-roadmap.md`](../research/ip-network-roadmap.md).
+
+## Required contents
+
+Every range file must distinguish:
+
+1. registry and registered resource holder;
+2. special-purpose classification, where applicable;
+3. observed BGP announcement and origin ASN;
+4. operator and service relationships;
+5. exact addresses already investigated inside the range;
+6. sources and verification dates.
+
+Do not compress these into a single misleading “owner” field. Registration, routing, operation, and service responsibility can belong to different organizations.