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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
Browse by country
Countries with the most unannounced blocks, largest first.
Unannounced blocks
85,244 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 196.223.252.0/24 | 256 | AFRINIC |  SN | 12th Jul 2016 |
| 196.223.26.0/24 | 256 | AFRINIC |  CI | 28th Feb 2020 |
| 196.223.27.0/24 | 256 | AFRINIC |  MW | 3rd Oct 2011 |
| 196.223.28.0/24 | 256 | AFRINIC |  CD | 8th Mar 2012 |
| 196.223.30.0/23 | 512 | AFRINIC |  ZA | 10th Jul 2012 |
| 196.223.32.0/24 | 256 | AFRINIC |  CG | 16th Jul 2012 |
| 196.223.33.0/24 | 256 | AFRINIC |  MZ | 4th Oct 2013 |
| 196.223.34.0/24 | 256 | AFRINIC |  GM | 6th Jan 2014 |
| 196.223.35.0/24 | 256 | AFRINIC |  NA | 22nd May 2014 |
| 196.223.36.0/24 | 256 | AFRINIC |  BI | 20th Mar 2014 |
| 196.223.37.0/24 | 256 | AFRINIC |  SZ | 3rd Oct 2014 |
| 196.223.38.0/24 | 256 | AFRINIC |  DJ | 30th Jul 2014 |
| 196.223.39.0/24 | 256 | AFRINIC |  GA | 23rd Sept 2014 |
| 196.223.4.0/24 | 256 | AFRINIC | CI | 24th Apr 2007 |
| 196.223.40.0/24 | 256 | AFRINIC |  BJ | 12th Nov 2014 |
| 196.223.41.0/24 | 256 | AFRINIC |  MG | 29th Jan 2015 |
| 196.223.42.0/24 | 256 | AFRINIC |  TD | 30th Jan 2015 |
| 196.223.43.0/24 | 256 | AFRINIC |  SC | 30th Jan 2015 |
| 196.223.44.0/24 | 256 | AFRINIC |  LR | 25th May 2015 |
| 196.223.45.0/24 | 256 | AFRINIC |  MR | 22nd Apr 2016 |
| 196.223.46.0/24 | 256 | AFRINIC | CI | 28th Feb 2020 |
| 196.223.47.0/24 | 256 | AFRINIC |  BF | 29th Apr 2016 |
| 196.223.5.0/24 | 256 | AFRINIC |  TZ | 11th Jun 2007 |
| 196.223.6.0/24 | 256 | AFRINIC | TZ | 29th Jun 2007 |
| 196.223.7.0/24 | 256 | AFRINIC |  EG | 31st Jul 2007 |
| 196.223.8.0/23 | 512 | AFRINIC | ZA | 25th Nov 2008 |
| 196.249.128.0/18 | 16.4k | AFRINIC | ZA | 17th Feb 2016 |
| 196.28.0.0/22 | 1k | AFRINIC | ZA | 26th Oct 1995 |
| 196.28.10.0/24 | 256 | AFRINIC |  NG | 4th Oct 2007 |
| 196.28.4.0/24 | 256 | AFRINIC | ZA | 22nd Nov 1995 |
| 196.28.6.0/24 | 256 | AFRINIC | ZA | 5th Dec 1995 |
| 196.28.8.0/24 | 256 | AFRINIC | ZA | 26th Nov 2015 |
| 196.29.0.0/19 | 8.2k | AFRINIC | ZA | 6th Sept 1995 |
| 196.29.208.0/20 | 4.1k | AFRINIC | CI | 28th Feb 2020 |
| 196.3.104.0/24 | 256 | ARIN |  JM | 10th May 1995 |
| 196.3.106.0/24 | 256 | LACNIC |  DO | 30th May 1995 |
| 196.3.107.0/24 | 256 | AFRINIC | ZA | 30th May 1995 |
| 196.3.108.0/24 | 256 | AFRINIC | ZA | 30th May 1995 |
| 196.3.109.0/24 | 256 | AFRINIC |  MU | 14th Jun 1995 |
| 196.3.116.0/22 | 1k | AFRINIC | ZA | 14th Jun 1995 |
| 196.3.120.0/22 | 1k | AFRINIC | ZA | 14th Jun 1995 |
| 196.3.124.0/22 | 1k | AFRINIC | ZA | 14th Jun 1995 |
| 196.3.128.0/22 | 1k | AFRINIC | ZA | 14th Jun 1995 |
| 196.3.148.0/24 | 256 | AFRINIC | ZA | 20th Jun 1995 |
| 196.3.149.0/24 | 256 | AFRINIC | ZA | 3rd Aug 1995 |
| 196.3.150.0/24 | 256 | AFRINIC | ZA | 17th Aug 1995 |
| 196.3.152.0/24 | 256 | LACNIC |  CU | 29th Aug 1995 |
| 196.3.153.0/24 | 256 | ARIN | JM | 31st Aug 1995 |
| 196.3.154.0/24 | 256 | AFRINIC | ZA | 31st Aug 1995 |
| 196.3.16.0/20 | 4.1k | LACNIC |  CW | 8th Sept 1994 |