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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
22,575 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 116.92.160.0/20 | 4.1k | APNIC |  JP | 22nd May 2007 |
| 116.92.176.0/21 | 2k | APNIC | JP | 22nd May 2007 |
| 116.92.248.0/21 | 2k | APNIC | JP | 22nd May 2007 |
| 116.92.3.0/24 | 256 | APNIC | JP | 22nd May 2007 |
| 116.92.32.0/19 | 8.2k | APNIC | JP | 22nd May 2007 |
| 116.92.5.0/24 | 256 | APNIC | JP | 22nd May 2007 |
| 116.92.6.0/24 | 256 | APNIC | JP | 22nd May 2007 |
| 116.92.7.0/24 | 256 | APNIC | JP | 22nd May 2007 |
| 117.100.0.0/15 | 131k | APNIC |  CN | 9th Jul 2007 |
| 117.103.0.0/21 | 2k | APNIC |  ID | 16th Jul 2007 |
| 117.103.114.0/23 | 512 | APNIC | ID | 25th Sept 2017 |
| 117.103.128.0/20 | 4.1k | APNIC | CN | 20th Jul 2007 |
| 117.103.16.0/20 | 4.1k | APNIC | CN | 16th Jul 2007 |
| 117.103.40.0/21 | 2k | APNIC | CN | 12th Apr 2011 |
| 117.103.48.0/20 | 4.1k | APNIC | ID | 18th Jul 2007 |
| 117.103.72.0/21 | 2k | APNIC | CN | 12th Apr 2011 |
| 117.104.168.0/21 | 2k | APNIC | CN | 12th Apr 2011 |
| 117.104.232.0/21 | 2k | APNIC |  IN | 27th Jul 2007 |
| 117.105.0.0/16 | 65.5k | APNIC |  SG | 30th Jul 2007 |
| 117.120.64.0/18 | 16.4k | APNIC | CN | 8th Aug 2007 |
| 117.121.192.0/21 | 2k | APNIC | CN | 6th Aug 2007 |
| 117.121.248.0/21 | 2k | APNIC |  AU | 16th Aug 2007 |
| 117.18.232.0/21 | 2k | APNIC | AU | 15th Jun 2007 |
| 117.18.80.0/21 | 2k | APNIC | AU | 7th Jun 2007 |
| 117.19.0.0/16 | 65.5k | APNIC |  TW | 12th Jun 2007 |
| 117.47.0.0/16 | 65.5k | APNIC |  TH | 18th Jun 2007 |
| 117.49.0.0/16 | 65.5k | APNIC | CN | 20th Jun 2007 |
| 117.53.156.0/22 | 1k | APNIC |  NZ | 3rd Jun 2010 |
| 117.53.176.0/20 | 4.1k | APNIC | CN | 2nd Jul 2007 |
| 117.53.48.0/20 | 4.1k | APNIC | CN | 25th Jun 2007 |
| 117.58.0.0/17 | 32.8k | APNIC | CN | 3rd Jul 2007 |
| 117.58.192.0/19 | 8.2k | APNIC |  PH | 6th Jul 2007 |
| 117.74.80.0/20 | 4.1k | APNIC | CN | 12th Apr 2011 |
| 117.75.0.0/16 | 65.5k | APNIC | CN | 9th Jul 2007 |
| 118.102.128.0/17 | 32.8k | APNIC | IN | 4th Sept 2007 |
| 118.102.32.0/21 | 2k | APNIC | CN | 12th Apr 2011 |
| 118.103.160.0/22 | 1k | APNIC | IN | 5th Jan 2016 |
| 118.103.168.0/22 | 1k | APNIC | CN | 5th Jan 2016 |
| 118.103.172.0/22 | 1k | APNIC | CN | 5th Jan 2016 |
| 118.103.176.0/22 | 1k | APNIC | CN | 5th Jan 2016 |
| 118.107.152.0/21 | 2k | APNIC | JP | 11th Feb 2011 |
| 118.107.196.0/22 | 1k | APNIC |  MY | 13th Sept 2007 |
| 118.107.224.0/21 | 2k | APNIC |  HK | 13th Sept 2007 |
| 118.127.128.0/19 | 8.2k | APNIC | CN | 12th Apr 2011 |
| 118.127.168.0/21 | 2k | APNIC | AU | 21st Nov 2007 |
| 118.127.176.0/20 | 4.1k | APNIC | AU | 21st Nov 2007 |
| 118.184.0.0/17 | 32.8k | APNIC | CN | 19th Oct 2007 |
| 118.191.13.0/24 | 256 | APNIC | CN | 19th Oct 2007 |
| 118.191.14.0/23 | 512 | APNIC | CN | 19th Oct 2007 |
| 118.191.16.0/21 | 2k | APNIC | CN | 19th Oct 2007 |