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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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.
Browse by registry
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Countries with the most unannounced blocks, largest first.
Unannounced blocks in Italy
945 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2a00:a720::/32 | 4.3B × /64 | RIPE NCC |  IT | 25th Jun 2013 |
| 2a00:aa00::/32 | 4.3B × /64 | RIPE NCC | IT | 24th Jan 2011 |
| 2a00:aa20::/32 | 4.3B × /64 | RIPE NCC | IT | 19th May 2015 |
| 2a00:b200::/32 | 4.3B × /64 | RIPE NCC | IT | 25th Jan 2011 |
| 2a00:c18::/32 | 4.3B × /64 | RIPE NCC | IT | 2nd Oct 2008 |
| 2a00:c680::/32 | 4.3B × /64 | RIPE NCC | IT | 25th May 2011 |
| 2a00:c880::/32 | 4.3B × /64 | RIPE NCC | IT | 26th May 2011 |
| 2a00:d020::/29 | 34.4B × /64 | RIPE NCC | IT | 23rd Aug 2013 |
| 2a00:d7a0::/32 | 4.3B × /64 | RIPE NCC | IT | 30th Aug 2013 |
| 2a00:e220::/32 | 4.3B × /64 | RIPE NCC | IT | 16th Sept 2013 |
| 2a00:eea0::/29 | 34.4B × /64 | RIPE NCC | IT | 30th Sept 2013 |
| 2a00:f200::/32 | 4.3B × /64 | RIPE NCC | IT | 27th Jan 2011 |
| 2a00:f20::/32 | 4.3B × /64 | RIPE NCC | IT | 25th Nov 2008 |
| 2a00:f3a0::/32 | 4.3B × /64 | RIPE NCC | IT | 4th Oct 2013 |
| 2a00:f560::/32 | 4.3B × /64 | RIPE NCC | IT | 8th Oct 2013 |
| 2a01:44a0::/32 | 4.3B × /64 | RIPE NCC | IT | 25th Oct 2013 |
| 2a01:45e0::/32 | 4.3B × /64 | RIPE NCC | IT | 29th Oct 2013 |
| 2a01:4e80::/32 | 4.3B × /64 | RIPE NCC | IT | 8th Jun 2011 |
| 2a01:4ec0::/32 | 4.3B × /64 | RIPE NCC | IT | 30th May 2012 |
| 2a01:5720::/32 | 4.3B × /64 | RIPE NCC | IT | 22nd Nov 2013 |
| 2a01:5920::/32 | 4.3B × /64 | RIPE NCC | IT | 26th Nov 2013 |
| 2a01:6080::/32 | 4.3B × /64 | RIPE NCC | IT | 14th Jun 2011 |
| 2a01:6760::/32 | 4.3B × /64 | RIPE NCC | IT | 11th Dec 2013 |
| 2a01:6a0::/32 | 4.3B × /64 | RIPE NCC | IT | 4th Dec 2007 |
| 2a01:7000::/32 | 4.3B × /64 | RIPE NCC | IT | 6th Dec 2010 |
| 2a01:7460::/32 | 4.3B × /64 | RIPE NCC | IT | 3rd Jul 2015 |
| 2a01:77a0::/32 | 4.3B × /64 | RIPE NCC | IT | 9th Jan 2014 |
| 2a01:7ca0::/32 | 4.3B × /64 | RIPE NCC | IT | 16th Jan 2014 |
| 2a01:7f00::/32 | 4.3B × /64 | RIPE NCC | IT | 4th Mar 2011 |
| 2a01:8420::/32 | 4.3B × /64 | RIPE NCC | IT | 28th Jan 2014 |
| 2a01:8440::/32 | 4.3B × /64 | RIPE NCC | IT | 10th Jul 2012 |
| 2a01:8d40::/29 | 34.4B × /64 | RIPE NCC | IT | 16th Jul 2012 |
| 2a01:9120::/32 | 4.3B × /64 | RIPE NCC | IT | 12th Feb 2014 |
| 2a01:9220::/32 | 4.3B × /64 | RIPE NCC | IT | 12th Feb 2014 |
| 2a01:9a00::/32 | 4.3B × /64 | RIPE NCC | IT | 1st Feb 2011 |
| 2a01:9ca0::/32 | 4.3B × /64 | RIPE NCC | IT | 25th Feb 2014 |
| 2a01:a00::/29 | 34.4B × /64 | RIPE NCC | IT | 27th May 2026 |
| 2a01:a600::/32 | 4.3B × /64 | RIPE NCC | IT | 1st Feb 2011 |
| 2a01:ab00::/29 | 34.4B × /64 | RIPE NCC | IT | 11th Mar 2011 |
| 2a01:ac40::/32 | 4.3B × /64 | RIPE NCC | IT | 27th Aug 2012 |
| 2a01:b080::/32 | 4.3B × /64 | RIPE NCC | IT | 5th Jul 2011 |
| 2a01:b120::/32 | 4.3B × /64 | RIPE NCC | IT | 21st Mar 2014 |
| 2a01:bbe0::/32 | 4.3B × /64 | RIPE NCC | IT | 2nd Apr 2014 |
| 2a01:bce0::/32 | 4.3B × /64 | RIPE NCC | IT | 3rd Apr 2014 |
| 2a01:bee0::/32 | 4.3B × /64 | RIPE NCC | IT | 7th Apr 2014 |
| 2a01:e040::/29 | 34.4B × /64 | RIPE NCC | IT | 24th Sept 2024 |
| 2a01:ee00::/29 | 34.4B × /64 | RIPE NCC | IT | 1st Aug 2024 |
| 2a01:fa40::/29 | 34.4B × /64 | RIPE NCC | IT | 21st Oct 2024 |
| 2a01:fe40::/32 | 4.3B × /64 | RIPE NCC | IT | 28th Oct 2024 |
| 2a02:100::/32 | 4.3B × /64 | RIPE NCC | IT | 4th Mar 2008 |