Allocated but unannounced space
Every block here was allocated or assigned by a regional internet registry, and none of them appeared in any routing table we collected at our last snapshot — neither as a route of their own, nor covered by a larger announcement, nor carved up into more specifics.
“Unannounced” does not mean “unused”
Plenty of allocated space is deliberately kept off the public internet: private interconnects, lab and lawful-intercept ranges, networks reachable only inside one operator, and space held in reserve. Some of it is announced somewhere our collectors cannot see, which is a limit of our vantage points rather than a fact about the block.
It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today. Nothing on this page means a block is unallocated, available, or free to announce.
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Countries with unannounced space registered through APNIC, largest first.
Unannounced blocks registered through APNIC
22,595 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2400:4980::/32 | 4.3B × /64 | APNIC | 1st Nov 2013 | |
| 2400:49a0::/32 | 4.3B × /64 | APNIC | 3rd Jan 2022 | |
| 2400:49e0::/32 | 4.3B × /64 | APNIC | 3rd Jan 2022 | |
| 2400:4ac0::/32 | 4.3B × /64 | APNIC | 24th Nov 2016 | |
| 2400:4b00::/32 | 4.3B × /64 | APNIC | 12th Apr 2011 | |
| 2400:4b20::/32 | 4.3B × /64 | APNIC | 6th Jan 2022 | |
| 2400:4b60::/32 | 4.3B × /64 | APNIC | 6th Jan 2022 | |
| 2400:4b80::/32 | 4.3B × /64 | APNIC | 4th Nov 2013 | |
| 2400:4bc0::/32 | 4.3B × /64 | APNIC | 24th Nov 2016 | |
| 2400:4c00::/32 | 4.3B × /64 | APNIC | 22nd Jun 2009 | |
| 2400:4c20::/32 | 4.3B × /64 | APNIC | 11th Jan 2022 | |
| 2400:4c40::/32 | 4.3B × /64 | APNIC | 24th Nov 2016 | |
| 2400:4c60::/32 | 4.3B × /64 | APNIC | 13th Jan 2022 | |
| 2400:4ca0::/32 | 4.3B × /64 | APNIC | 14th Jan 2022 | |
| 2400:4cc0::/32 | 4.3B × /64 | APNIC | 24th Nov 2016 | |
| 2400:4ce0::/32 | 4.3B × /64 | APNIC | 14th Jan 2022 | |
| 2400:4d00::/32 | 4.3B × /64 | APNIC | 12th Apr 2011 | |
| 2400:4da0::/32 | 4.3B × /64 | APNIC | 17th Jan 2022 | |
| 2400:4de0::/32 | 4.3B × /64 | APNIC | 17th Jan 2022 | |
| 2400:4e00::/32 | 4.3B × /64 | APNIC | 12th Mar 2010 | |
| 2400:4e40::/32 | 4.3B × /64 | APNIC | 28th Nov 2016 | |
| 2400:4ee0::/32 | 4.3B × /64 | APNIC | 18th Jan 2022 | |
| 2400:4f40::/32 | 4.3B × /64 | APNIC | 28th Nov 2016 | |
| 2400:4f60::/32 | 4.3B × /64 | APNIC | 18th Jan 2022 | |
| 2400:4fa0::/32 | 4.3B × /64 | APNIC | 18th Jan 2022 | |
| 2400:4fe0::/32 | 4.3B × /64 | APNIC | 18th Jan 2022 | |
| 2400:5040::/32 | 4.3B × /64 | APNIC | 28th Nov 2016 | |
| 2400:5060::/32 | 4.3B × /64 | APNIC | 21st Jan 2022 | |
| 2400:5080::/32 | 4.3B × /64 | APNIC | 5th Nov 2013 | |
| 2400:50a0::/32 | 4.3B × /64 | APNIC | 21st Jan 2022 | |
| 2400:50e0::/32 | 4.3B × /64 | APNIC | 21st Jan 2022 | |
| 2400:5140::/32 | 4.3B × /64 | APNIC | 29th Nov 2016 | |
| 2400:5180::/32 | 4.3B × /64 | APNIC | 6th Nov 2013 | |
| 2400:51a0::/32 | 4.3B × /64 | APNIC | 21st Jan 2022 | |
| 2400:5220::/32 | 4.3B × /64 | APNIC | 24th Jan 2022 | |
| 2400:5260::/32 | 4.3B × /64 | APNIC | 25th Jan 2022 | |
| 2400:52a0::/32 | 4.3B × /64 | APNIC | 25th Jan 2022 | |
| 2400:5340::/32 | 4.3B × /64 | APNIC | 30th Nov 2016 | |
| 2400:5360::/32 | 4.3B × /64 | APNIC | 26th Jan 2022 | |
| 2400:53a0::/32 | 4.3B × /64 | APNIC | 26th Jan 2022 | |
| 2400:53c0::/32 | 4.3B × /64 | APNIC | 30th Nov 2016 | |
| 2400:5400::/32 | 4.3B × /64 | APNIC | 26th Jun 2009 | |
| 2400:5440::/32 | 4.3B × /64 | APNIC | 30th Nov 2016 | |
| 2400:54e0::/32 | 4.3B × /64 | APNIC | 27th Jan 2022 | |
| 2400:5540::/32 | 4.3B × /64 | APNIC | 1st Dec 2016 | |
| 2400:5560::/32 | 4.3B × /64 | APNIC | 28th Jan 2022 | |
| 2400:5580::/32 | 4.3B × /64 | APNIC | 7th Nov 2013 | |
| 2400:55c0::/32 | 4.3B × /64 | APNIC | 2nd Dec 2016 | |
| 2400:55e0::/32 | 4.3B × /64 | APNIC | 30th Jan 2022 | |
| 2400:5600::/32 | 4.3B × /64 | APNIC | 15th Mar 2010 |