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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 the most unannounced blocks, largest first.
Unannounced blocks
84,968 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2c0f:f8c8::/32 | 4.3B × /64 | AFRINIC |  NE | 29th Nov 2012 |
| 2c0f:f8f8::/32 | 4.3B × /64 | AFRINIC |  SO | 2nd Jan 2013 |
| 2c0f:f928::/32 | 4.3B × /64 | AFRINIC |  GW | 15th Feb 2013 |
| 2c0f:f938::/32 | 4.3B × /64 | AFRINIC |  ZM | 4th Mar 2013 |
| 2c0f:f950::/32 | 4.3B × /64 | AFRINIC |  SS | 17th Apr 2013 |
| 2c0f:f960::/32 | 4.3B × /64 | AFRINIC |  TZ | 30th Apr 2013 |
| 2c0f:f978::/32 | 4.3B × /64 | AFRINIC |  CD | 17th May 2013 |
| 2c0f:f990::/32 | 4.3B × /64 | AFRINIC |  GN | 5th Jun 2013 |
| 2c0f:f9b0::/32 | 4.3B × /64 | AFRINIC |  GA | 15th Jul 2013 |
| 2c0f:f9c0::/32 | 4.3B × /64 | AFRINIC |  BW | 16th Jul 2013 |
| 2c0f:f9f0::/32 | 4.3B × /64 | AFRINIC |  MG | 13th Aug 2013 |
| 2c0f:fa00::/32 | 4.3B × /64 | AFRINIC |  GH | 7th Sept 2011 |
| 2c0f:fa0::/32 | 4.3B × /64 | AFRINIC |  MR | 29th Jun 2026 |
| 2c0f:fa20::/32 | 4.3B × /64 | AFRINIC | SS | 12th Sept 2011 |
| 2c0f:fa38::/32 | 4.3B × /64 | AFRINIC |  AO | 19th Sept 2011 |
| 2c0f:fa98::/32 | 4.3B × /64 | AFRINIC |  ZW | 15th Nov 2011 |
| 2c0f:fac8::/32 | 4.3B × /64 | AFRINIC | BW | 17th Nov 2011 |
| 2c0f:fad8::/32 | 4.3B × /64 | AFRINIC |  CM | 23rd Nov 2011 |
| 2c0f:fae0::/32 | 4.3B × /64 | AFRINIC | CM | 24th Nov 2011 |
| 2c0f:fae8::/32 | 4.3B × /64 | AFRINIC |  KE | 29th Nov 2011 |
| 2c0f:fb00::/32 | 4.3B × /64 | AFRINIC |  UG | 22nd Dec 2011 |
| 2c0f:fb30::/32 | 4.3B × /64 | AFRINIC |  ZA | 27th Jan 2012 |
| 2c0f:fb48::/32 | 4.3B × /64 | AFRINIC |  MZ | 8th Feb 2012 |
| 2c0f:fb58::/32 | 4.3B × /64 | AFRINIC | AO | 14th Mar 2012 |
| 2c0f:fb70::/32 | 4.3B × /64 | AFRINIC | AO | 22nd Mar 2012 |
| 2c0f:fb80::/32 | 4.3B × /64 | AFRINIC | ZA | 2nd Apr 2012 |
| 2c0f:fb98::/32 | 4.3B × /64 | AFRINIC |  NG | 26th Apr 2012 |
| 2c0f:fba8::/32 | 4.3B × /64 | AFRINIC | NG | 22nd May 2012 |
| 2c0f:fbb0::/32 | 4.3B × /64 | AFRINIC | ZA | 4th Jun 2012 |
| 2c0f:fbc8::/32 | 4.3B × /64 | AFRINIC | UG | 13th Feb 2014 |
| 2c0f:fc0::/32 | 4.3B × /64 | AFRINIC | CD | 4th Oct 2024 |
| 2c0f:fc40::/32 | 4.3B × /64 | AFRINIC |  EG | 7th Mar 2011 |
| 2c0f:fc48::/32 | 4.3B × /64 | AFRINIC |  MW | 10th Mar 2011 |
| 2c0f:fc60::/31 | 8.6B × /64 | AFRINIC | NG | 16th Mar 2011 |
| 2c0f:fc68::/32 | 4.3B × /64 | AFRINIC | ZA | 17th Mar 2011 |
| 2c0f:fc80::/32 | 4.3B × /64 | AFRINIC | ZA | 14th Apr 2011 |
| 2c0f:fca8::/32 | 4.3B × /64 | AFRINIC | GH | 21st Apr 2011 |
| 2c0f:fcd8::/32 | 4.3B × /64 | AFRINIC | SO | 5th May 2011 |
| 2c0f:fcf8::/32 | 4.3B × /64 | AFRINIC | GH | 12th May 2011 |
| 2c0f:fd00::/32 | 4.3B × /64 | AFRINIC |  LS | 17th May 2011 |
| 2c0f:fd18::/32 | 4.3B × /64 | AFRINIC |  SC | 31st May 2011 |
| 2c0f:fd30::/32 | 4.3B × /64 | AFRINIC | TZ | 9th Jun 2011 |
| 2c0f:fd38::/32 | 4.3B × /64 | AFRINIC | NG | 12th Jun 2011 |
| 2c0f:fd40::/32 | 4.3B × /64 | AFRINIC | ZM | 12th Jun 2011 |
| 2c0f:fd60::/32 | 4.3B × /64 | AFRINIC | UG | 14th Jun 2011 |
| 2c0f:fd78::/32 | 4.3B × /64 | AFRINIC |  BI | 22nd Jun 2011 |
| 2c0f:fd90::/32 | 4.3B × /64 | AFRINIC | ZM | 12th Sept 2014 |
| 2c0f:fd98::/32 | 4.3B × /64 | AFRINIC | ZM | 30th Jun 2011 |
| 2c0f:fde8::/32 | 4.3B × /64 | AFRINIC | MW | 12th Aug 2011 |
| 2c0f:fdf8::/32 | 4.3B × /64 | AFRINIC | ZA | 17th Aug 2011 |