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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 202.45.129.0/24 | 256 | APNIC |  JP | 29th Sept 2004 |
| 202.45.13.0/24 | 256 | APNIC |  AU | 10th Mar 2005 |
| 202.45.14.0/24 | 256 | APNIC |  HK | 27th Aug 2004 |
| 202.45.15.0/24 | 256 | APNIC |  CN | 14th Apr 2011 |
| 202.45.150.0/23 | 512 | APNIC | AU | 3rd Jul 2008 |
| 202.45.16.0/20 | 4.1k | APNIC | CN | 12th Apr 2011 |
| 202.45.2.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.46.128.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.46.132.0/22 | 1k | APNIC | AU | 15th Jul 2003 |
| 202.46.16.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 202.46.18.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.46.192.0/20 | 4.1k | APNIC |  IN | 11th Oct 2002 |
| 202.46.20.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 202.46.208.0/20 | 4.1k | APNIC | IN | 30th Jun 2004 |
| 202.46.96.0/20 | 4.1k | APNIC |  ID | 12th Jul 2001 |
| 202.47.100.0/22 | 1k | APNIC | CN | 21st Nov 2015 |
| 202.47.126.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.47.127.0/24 | 256 | APNIC | IN | 6th Oct 2004 |
| 202.47.128.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.47.130.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 202.47.161.0/24 | 256 | APNIC | ID | 14th Nov 2023 |
| 202.47.168.0/23 | 512 | APNIC | ID | 14th Nov 2023 |
| 202.47.170.0/23 | 512 | APNIC | ID | 14th Nov 2023 |
| 202.47.194.0/24 | 256 | APNIC | HK | 13th Mar 2000 |
| 202.47.82.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 202.47.86.0/24 | 256 | APNIC | AU | 22nd Dec 2009 |
| 202.47.96.0/22 | 1k | APNIC | CN | 21st Nov 2015 |
| 202.49.12.0/23 | 512 | APNIC |  NZ | 15th Mar 1994 |
| 202.49.169.0/24 | 256 | APNIC | NZ | 7th Oct 1999 |
| 202.49.180.0/23 | 512 | APNIC | NZ | 13th Nov 2003 |
| 202.49.190.0/24 | 256 | APNIC | NZ | 16th Feb 1996 |
| 202.49.192.0/22 | 1k | APNIC | NZ | 22nd Mar 1995 |
| 202.49.196.0/24 | 256 | APNIC | NZ | 17th May 1995 |
| 202.49.206.0/24 | 256 | APNIC | NZ | 1st Aug 1995 |
| 202.49.216.0/21 | 2k | APNIC | NZ | 22nd Aug 1995 |
| 202.49.32.0/24 | 256 | APNIC | AU | 23rd Aug 1994 |
| 202.49.38.0/24 | 256 | APNIC | NZ | 16th Dec 1994 |
| 202.49.39.0/24 | 256 | APNIC | NZ | 11th Oct 1995 |
| 202.49.49.0/24 | 256 | APNIC | NZ | 21st Jul 1998 |
| 202.49.50.0/24 | 256 | APNIC | NZ | 17th Feb 1995 |
| 202.49.8.0/22 | 1k | APNIC | NZ | 15th Mar 1994 |
| 202.49.82.0/24 | 256 | APNIC | NZ | 29th Oct 2003 |
| 202.49.91.0/24 | 256 | APNIC | NZ | 14th Aug 1995 |
| 202.5.190.0/24 | 256 | APNIC | AU | 20th Mar 2002 |
| 202.5.208.0/22 | 1k | APNIC | CN | 19th Nov 2015 |
| 202.5.212.0/22 | 1k | APNIC | CN | 19th Nov 2015 |
| 202.5.216.0/22 | 1k | APNIC | CN | 19th Nov 2015 |
| 202.5.8.0/22 | 1k | APNIC |  TW | 24th Sept 2002 |
| 202.5.80.0/20 | 4.1k | APNIC |  TH | 28th May 2003 |
| 202.50.100.0/24 | 256 | APNIC | NZ | 18th Dec 1995 |