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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 202.165.242.0/24 | 256 | APNIC |  PK | 10th Mar 1998 |
| 202.165.243.0/24 | 256 | APNIC |  CN | 14th Apr 2011 |
| 202.165.244.0/24 | 256 | APNIC | PK | 10th Mar 1998 |
| 202.165.245.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.165.247.0/24 | 256 | APNIC | PK | 10th Mar 1998 |
| 202.165.251.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.165.252.0/22 | 1k | APNIC | CN | 14th Apr 2011 |
| 202.166.185.0/24 | 256 | APNIC |  JP | 6th Dec 2007 |
| 202.166.188.0/22 | 1k | APNIC |  PH | 18th Dec 2007 |
| 202.166.224.0/19 | 8.2k | APNIC | CN | 12th Apr 2011 |
| 202.167.192.0/20 | 4.1k | APNIC |  SG | 9th Apr 2001 |
| 202.168.128.0/22 | 1k | APNIC | CN | 16th Dec 2015 |
| 202.168.132.0/22 | 1k | APNIC | CN | 16th Dec 2015 |
| 202.168.136.0/22 | 1k | APNIC | CN | 16th Dec 2015 |
| 202.168.140.0/22 | 1k | APNIC | CN | 16th Dec 2015 |
| 202.168.80.0/22 | 1k | APNIC | CN | 10th Nov 2015 |
| 202.168.92.0/23 | 512 | APNIC | SG | 27th Dec 2007 |
| 202.170.224.0/19 | 8.2k | APNIC | CN | 12th Apr 2011 |
| 202.171.192.0/20 | 4.1k | APNIC |  MY | 25th Sept 2000 |
| 202.171.216.0/21 | 2k | APNIC | CN | 12th Apr 2011 |
| 202.171.232.0/24 | 256 | APNIC | CN | 9th Jun 2016 |
| 202.171.233.0/24 | 256 | APNIC |  ID | 31st Jul 2009 |
| 202.171.235.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.171.237.0/24 | 256 | APNIC | ID | 5th Aug 2009 |
| 202.171.239.0/24 | 256 | APNIC |  IN | 11th Aug 2009 |
| 202.172.0.0/22 | 1k | APNIC | CN | 14th Apr 2011 |
| 202.172.4.0/23 | 512 | APNIC |  VN | 25th Oct 2006 |
| 202.172.64.0/19 | 8.2k | APNIC | JP | 13th Apr 2004 |
| 202.172.7.0/24 | 256 | APNIC | CN | 9th Jun 2016 |
| 202.173.0.0/22 | 1k | APNIC | CN | 14th Apr 2011 |
| 202.173.112.0/22 | 1k | APNIC | CN | 25th Sept 2015 |
| 202.173.6.0/24 | 256 | APNIC | CN | 9th Jun 2016 |
| 202.174.124.0/22 | 1k | APNIC | CN | 29th Oct 2015 |
| 202.174.16.0/20 | 4.1k | APNIC |  TW | 26th Oct 2005 |
| 202.174.64.0/20 | 4.1k | APNIC | CN | 12th Apr 2011 |
| 202.174.8.0/21 | 2k | APNIC |  HK | 13th May 2005 |
| 202.176.13.0/24 | 256 | APNIC | MY | 11th Jan 2008 |
| 202.176.14.0/24 | 256 | APNIC |  AU | 15th Jan 2008 |
| 202.176.224.0/19 | 8.2k | APNIC | CN | 12th Apr 2011 |
| 202.178.0.0/19 | 8.2k | APNIC | MY | 4th Aug 1997 |
| 202.178.32.0/19 | 8.2k | APNIC | MY | 14th May 1999 |
| 202.178.64.0/20 | 4.1k | APNIC | MY | 7th Mar 2001 |
| 202.179.148.0/22 | 1k | APNIC |  KR | 19th May 2017 |
| 202.179.160.0/22 | 1k | APNIC | CN | 23rd Nov 2015 |
| 202.179.164.0/22 | 1k | APNIC | CN | 23rd Nov 2015 |
| 202.179.168.0/22 | 1k | APNIC | CN | 23rd Nov 2015 |
| 202.179.172.0/22 | 1k | APNIC | CN | 23rd Nov 2015 |
| 202.179.208.0/20 | 4.1k | APNIC | JP | 3rd Jun 2004 |
| 202.180.128.0/19 | 8.2k | APNIC | CN | 10th May 2005 |
| 202.180.176.0/20 | 4.1k | APNIC | JP | 11th Feb 2004 |