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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through APNIC, largest first.
Unannounced blocks registered through APNIC
22,592 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 119.150.108.0/22 | 1k | APNIC |  JP | 18th Feb 2008 |
| 119.150.206.0/24 | 256 | APNIC | JP | 18th Feb 2008 |
| 119.150.207.0/24 | 256 | APNIC | JP | 18th Feb 2008 |
| 119.150.208.0/22 | 1k | APNIC | JP | 18th Feb 2008 |
| 119.150.212.0/24 | 256 | APNIC | JP | 18th Feb 2008 |
| 119.150.213.0/24 | 256 | APNIC | JP | 18th Feb 2008 |
| 119.150.214.0/24 | 256 | APNIC | JP | 18th Feb 2008 |
| 119.150.228.0/22 | 1k | APNIC | JP | 18th Feb 2008 |
| 119.150.232.0/22 | 1k | APNIC | JP | 18th Feb 2008 |
| 119.150.236.0/24 | 256 | APNIC | JP | 18th Feb 2008 |
| 119.150.237.0/24 | 256 | APNIC | JP | 18th Feb 2008 |
| 119.150.238.0/24 | 256 | APNIC | JP | 18th Feb 2008 |
| 119.151.192.0/18 | 16.4k | APNIC |  CN | 12th Apr 2011 |
| 119.160.200.0/21 | 2k | APNIC | CN | 12th Apr 2011 |
| 119.160.210.0/24 | 256 | APNIC |  ID | 19th Oct 2026 |
| 119.160.211.0/24 | 256 | APNIC | ID | 19th Oct 2026 |
| 119.160.212.0/24 | 256 | APNIC |  KI | 19th Oct 2026 |
| 119.160.213.0/24 | 256 | APNIC |  TH | 22nd Feb 2008 |
| 119.160.216.0/22 | 1k | APNIC | TH | 22nd Feb 2008 |
| 119.160.222.0/24 | 256 | APNIC | TH | 22nd Feb 2008 |
| 119.160.223.0/24 | 256 | APNIC | ID | 19th Oct 2026 |
| 119.160.240.0/20 | 4.1k | APNIC |  TW | 27th Feb 2008 |
| 119.161.0.0/19 | 8.2k | APNIC |  KR | 22nd Feb 2008 |
| 119.161.48.0/20 | 4.1k | APNIC |  AU | 25th Feb 2011 |
| 119.18.128.0/20 | 4.1k | APNIC |  VN | 7th Dec 2007 |
| 119.18.192.0/20 | 4.1k | APNIC | CN | 11th Dec 2007 |
| 119.18.225.0/24 | 256 | APNIC | CN | 14th Dec 2007 |
| 119.18.227.0/24 | 256 | APNIC | CN | 14th Dec 2007 |
| 119.18.228.0/22 | 1k | APNIC | CN | 14th Dec 2007 |
| 119.18.232.0/23 | 512 | APNIC | CN | 14th Dec 2007 |
| 119.18.235.0/24 | 256 | APNIC | CN | 14th Dec 2007 |
| 119.18.240.0/20 | 4.1k | APNIC | CN | 14th Dec 2007 |
| 119.19.0.0/16 | 65.5k | APNIC | CN | 10th Dec 2007 |
| 119.2.0.0/19 | 8.2k | APNIC | CN | 22nd Nov 2007 |
| 119.224.96.0/19 | 8.2k | APNIC |  HK | 26th Feb 2008 |
| 119.232.0.0/16 | 65.5k | APNIC | CN | 29th Feb 2008 |
| 119.233.0.0/17 | 32.8k | APNIC | CN | 29th Feb 2008 |
| 119.235.0.0/22 | 1k | APNIC |  LK | 29th Feb 2008 |
| 119.235.104.0/21 | 2k | APNIC | JP | 23rd Feb 2011 |
| 119.235.14.0/23 | 512 | APNIC | LK | 29th Feb 2008 |
| 119.235.192.0/20 | 4.1k | APNIC | KR | 7th Mar 2008 |
| 119.252.96.0/21 | 2k | APNIC | CN | 12th Apr 2011 |
| 119.27.128.0/19 | 8.2k | APNIC | CN | 12th Apr 2011 |
| 119.27.64.0/18 | 16.4k | APNIC | CN | 14th Dec 2007 |
| 119.30.48.0/20 | 4.1k | APNIC | CN | 19th Dec 2007 |
| 119.37.128.0/18 | 16.4k | APNIC | CN | 27th Dec 2007 |
| 119.38.128.0/18 | 16.4k | APNIC | CN | 27th Dec 2007 |
| 119.42.128.0/21 | 2k | APNIC | CN | 12th Apr 2011 |
| 119.42.192.0/19 | 8.2k | APNIC |  SG | 8th Jan 2008 |
| 119.42.44.0/22 | 1k | APNIC |  GB | 20th Jul 2016 |