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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
22,624 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 202.50.110.0/24 | 256 | APNIC |  NZ | 18th Jan 1996 |
| 202.50.113.0/24 | 256 | APNIC |  BD | 1st May 2024 |
| 202.50.158.0/24 | 256 | APNIC | NZ | 8th Sept 1995 |
| 202.50.160.0/22 | 1k | APNIC | NZ | 31st Aug 1995 |
| 202.50.172.0/23 | 512 | APNIC | NZ | 4th Oct 1995 |
| 202.50.174.0/24 | 256 | APNIC |  AU | 4th Oct 1995 |
| 202.50.206.0/23 | 512 | APNIC | NZ | 21st Dec 1995 |
| 202.50.220.0/24 | 256 | APNIC | NZ | 5th Jan 1996 |
| 202.50.222.0/24 | 256 | APNIC | NZ | 6th Jun 1996 |
| 202.50.224.0/22 | 1k | APNIC | NZ | 12th Jun 1995 |
| 202.50.228.0/23 | 512 | APNIC | NZ | 12th Jun 1995 |
| 202.50.230.0/24 | 256 | APNIC | NZ | 12th Jun 1995 |
| 202.50.242.0/24 | 256 | APNIC |  MY | 7th May 2024 |
| 202.50.32.0/20 | 4.1k | APNIC | NZ | 14th May 1994 |
| 202.50.74.0/24 | 256 | APNIC | NZ | 4th Nov 1996 |
| 202.50.75.0/24 | 256 | APNIC | NZ | 6th Nov 1996 |
| 202.50.80.0/22 | 1k | APNIC | NZ | 12th May 1996 |
| 202.51.4.0/22 | 1k | APNIC |  JP | 27th Jan 2005 |
| 202.52.131.0/24 | 256 | APNIC |  ID | 15th Jul 2010 |
| 202.52.143.0/24 | 256 | APNIC |  CN | 9th Jun 2016 |
| 202.52.145.0/24 | 256 | APNIC | AU | 5th Aug 2010 |
| 202.52.151.0/24 | 256 | APNIC | JP | 12th Aug 2010 |
| 202.52.157.0/24 | 256 | APNIC | NZ | 3rd Feb 2017 |
| 202.52.159.0/24 | 256 | APNIC | AU | 20th Aug 2010 |
| 202.52.192.0/20 | 4.1k | APNIC |  HK | 25th Jan 2001 |
| 202.52.2.0/23 | 512 | APNIC |  IN | 27th Apr 2005 |
| 202.52.208.0/20 | 4.1k | APNIC | HK | 18th Dec 2002 |
| 202.52.248.0/22 | 1k | APNIC |  SG | 23rd Feb 1999 |
| 202.52.33.0/24 | 256 | APNIC | CN | 9th Jun 2016 |
| 202.52.34.0/24 | 256 | APNIC | CN | 9th Jun 2016 |
| 202.52.47.0/24 | 256 | APNIC | CN | 9th Jun 2016 |
| 202.52.51.0/24 | 256 | APNIC | SG | 1st Jul 2010 |
| 202.53.131.0/24 | 256 | APNIC | BD | 28th Mar 2019 |
| 202.53.132.0/24 | 256 | APNIC | BD | 28th Mar 2019 |
| 202.53.140.0/24 | 256 | APNIC | CN | 9th Jun 2016 |
| 202.53.142.0/24 | 256 | APNIC | IN | 7th May 2024 |
| 202.53.143.0/24 | 256 | APNIC | CN | 9th Jun 2016 |
| 202.53.208.0/20 | 4.1k | APNIC | JP | 26th Mar 2004 |
| 202.53.96.0/20 | 4.1k | APNIC | IN | 9th May 2001 |
| 202.56.56.0/24 | 256 | APNIC | IN | 9th Oct 2023 |
| 202.56.58.0/23 | 512 | APNIC | IN | 24th Jul 2009 |
| 202.56.62.0/23 | 512 | APNIC |  NL | 29th Jul 2009 |
| 202.56.8.0/21 | 2k | APNIC | HK | 15th Oct 2004 |
| 202.57.132.0/22 | 1k | APNIC |  TH | 22nd Feb 1999 |
| 202.57.136.0/21 | 2k | APNIC | TH | 22nd Feb 1999 |
| 202.57.144.0/20 | 4.1k | APNIC | TH | 22nd Feb 1999 |
| 202.57.16.0/24 | 256 | APNIC | ID | 7th Jan 2002 |
| 202.57.17.0/24 | 256 | APNIC | ID | 7th Jan 2002 |
| 202.57.18.0/24 | 256 | APNIC | ID | 7th Jan 2002 |
| 202.57.212.0/22 | 1k | APNIC | CN | 6th Nov 2015 |