subnet.im

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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 the most unannounced blocks, largest first.

Unannounced blocks

85,239 blocks match, ordered by prefix.

Allocated but unannounced blocks, 63901 to 63950 of 85239
PrefixAddressesRegistryCountryAllocated
27.132.0.0/212kAPNICJP21st Apr 2010
27.132.176.0/204.1kAPNICJP21st Apr 2010
27.133.10.0/23512APNICJP21st Apr 2010
27.133.172.0/23512APNICJP21st Apr 2010
27.133.174.0/24256APNICJP21st Apr 2010
27.133.175.0/24256APNICJP21st Apr 2010
27.133.208.0/204.1kAPNICJP21st Apr 2010
27.133.24.0/212kAPNICJP21st Apr 2010
27.133.32.0/212kAPNICJP21st Apr 2010
27.133.40.0/221kAPNICJP21st Apr 2010
27.133.44.0/23512APNICJP21st Apr 2010
27.133.64.0/204.1kAPNICJP21st Apr 2010
27.133.80.0/212kAPNICJP21st Apr 2010
27.133.88.0/23512APNICJP21st Apr 2010
27.134.16.0/221kAPNICJP21st Apr 2010
27.134.189.0/24256APNICJP21st Apr 2010
27.134.190.0/23512APNICJP21st Apr 2010
27.134.192.0/198.2kAPNICJP21st Apr 2010
27.134.20.0/23512APNICJP21st Apr 2010
27.134.224.0/212kAPNICJP21st Apr 2010
27.134.232.0/221kAPNICJP21st Apr 2010
27.134.236.0/23512APNICJP21st Apr 2010
27.134.238.0/23512APNICJP21st Apr 2010
27.134.72.0/212kAPNICJP21st Apr 2010
27.134.96.0/198.2kAPNICJP21st Apr 2010
27.135.57.0/24256APNICJP21st Apr 2010
27.135.58.0/23512APNICJP21st Apr 2010
27.135.60.0/221kAPNICJP21st Apr 2010
27.135.64.0/212kAPNICJP21st Apr 2010
27.135.72.0/24256APNICJP21st Apr 2010
27.248.0.0/14262kAPNICIN24th Mar 2010
27.253.0.0/1732.8kAPNICAU22nd Mar 2011
27.254.0.0/23512APNICTH16th Mar 2010
27.254.184.0/24256APNICTH16th Mar 2010
27.254.229.0/24256APNICTH16th Mar 2010
27.34.192.0/198.2kAPNICJP25th Mar 2010
27.34.232.0/212kAPNICCN12th Apr 2011
27.50.40.0/212kAPNICCN12th Apr 2011
27.54.144.0/221kAPNICBD14th Dec 2015
27.54.152.0/212kAPNICCN12th Apr 2011
27.54.192.0/1816.4kAPNICCN25th Mar 2010
27.54.72.0/212kAPNICCN12th Apr 2011
27.96.160.0/198.2kAPNICKR19th May 2010
27.98.208.0/204.1kAPNICCN25th May 2010
27.99.0.0/1732.8kAPNICAU24th May 2010
2800:100::/324.3B × /64LACNICVE12th Mar 2007
2800:10::/324.3B × /64LACNICNI24th Nov 2005
2800:170::/324.3B × /64LACNICAR31st Aug 2007
2800:220::/324.3B × /64LACNICAR6th Jun 2008
2800:230::/324.3B × /64LACNICCU4th Jun 2008