221.0.22.223
| Announced By | ||
|---|---|---|
| Origin AS | Announcement | Description |
| AS4766 | 221.0.0.0/12 | Korea Telecom |
| AS4766 | 221.0.0.0/13 | Korea Telecom |
| AS4837 | 221.0.0.0/15   | China Unicom Backbone |
| AS9304 | 221.0.0.0/16   | HGC Global Communications Limited |
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