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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 202.37.167.0/24 | 256 | APNIC |  NZ | 6th Jul 1995 |
| 202.37.183.0/24 | 256 | APNIC | NZ | 13th Apr 1996 |
| 202.37.197.0/24 | 256 | APNIC | NZ | 29th May 1995 |
| 202.37.208.0/21 | 2k | APNIC | NZ | 26th Feb 1996 |
| 202.37.236.0/22 | 1k | APNIC | NZ | 12th Dec 1996 |
| 202.37.255.0/24 | 256 | APNIC | NZ | 8th Sept 1994 |
| 202.37.45.0/24 | 256 | APNIC | NZ | 14th Feb 1997 |
| 202.37.56.0/24 | 256 | APNIC | NZ | 12th Sept 2000 |
| 202.37.58.0/24 | 256 | APNIC |  AU | 7th Apr 1995 |
| 202.37.68.0/24 | 256 | APNIC | NZ | 11th Mar 1999 |
| 202.37.69.0/24 | 256 | APNIC | NZ | 21st Nov 2001 |
| 202.37.84.0/24 | 256 | APNIC | AU | 11th Aug 1996 |
| 202.37.99.0/24 | 256 | APNIC | NZ | 3rd Mar 1995 |
| 202.38.0.0/23 | 512 | APNIC |  CN | 14th Apr 2011 |
| 202.38.130.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 202.38.135.0/24 | 256 | APNIC | CN | 21st Apr 1994 |
| 202.38.136.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 202.38.142.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 202.38.144.0/23 | 512 | APNIC | AU | 3rd Feb 2011 |
| 202.38.146.0/23 | 512 | APNIC | CN | 31st Aug 1994 |
| 202.38.148.0/24 | 256 | APNIC | AU | 20th Oct 2003 |
| 202.38.149.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.38.150.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 202.38.154.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 202.38.156.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.38.158.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 202.38.168.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 202.38.170.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.38.176.0/23 | 512 | APNIC | CN | 21st Dec 1994 |
| 202.38.178.0/23 | 512 | APNIC |  HK | 24th Dec 2003 |
| 202.38.2.0/23 | 512 | APNIC | CN | 1st Jul 1994 |
| 202.38.48.0/20 | 4.1k | APNIC | CN | 12th Apr 2011 |
| 202.38.6.0/23 | 512 | APNIC | HK | 6th Apr 2011 |
| 202.39.112.0/20 | 4.1k | APNIC |  TW | 16th Dec 1994 |
| 202.4.162.0/23 | 512 | APNIC | HK | 5th Jan 2018 |
| 202.4.164.0/24 | 256 | APNIC |  US | 24th Sept 2009 |
| 202.4.166.0/24 | 256 | APNIC | AU | 1st Oct 2009 |
| 202.4.184.0/24 | 256 | APNIC |  SG | 8th Dec 2009 |
| 202.4.185.0/24 | 256 | APNIC |  ID | 8th Dec 2009 |
| 202.4.240.0/22 | 1k | APNIC | AU | 4th Aug 2004 |
| 202.4.25.0/24 | 256 | APNIC |  IN | 14th Feb 2006 |
| 202.40.135.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.40.136.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.40.14.0/24 | 256 | APNIC | IN | 18th Jul 1994 |
| 202.40.140.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.40.142.0/24 | 256 | APNIC | HK | 27th Jan 1994 |
| 202.40.143.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.40.144.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 202.40.15.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.40.150.0/24 | 256 | APNIC | CN | 14th Apr 2011 |