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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,346 blocks match, ordered by prefix.

Allocated but unannounced blocks, 52951 to 53000 of 85346
PrefixAddressesRegistryCountryAllocated
24.143.224.0/198.2kARINUS26th Feb 2007
24.149.128.0/1732.8kARINUS21st Jan 2004
24.152.91.0/24256LACNICBR11th Mar 2020
24.157.0.0/204.1kARINUS20th Nov 2007
24.170.208.0/204.1kARINUS10th Sept 2007
24.171.128.0/198.2kARINUS27th Jun 2002
24.194.0.0/15131kARINUS11th Jul 2002
24.214.184.0/24256ARINUS15th Apr 1999
24.214.186.0/24256ARINUS15th Apr 1999
24.221.0.0/1665.5kARINUS8th Dec 1998
24.223.81.0/24256ARINUS2nd Sept 2014
24.224.54.0/24256ARINUS29th Jan 2007
24.224.57.0/24256ARINUS29th Jan 2007
24.225.32.0/198.2kARINUS28th Aug 2003
24.225.64.0/198.2kARINUS28th Aug 2003
24.233.128.0/204.1kAPNICAU7th Oct 2002
24.233.32.0/198.2kARINUS2nd Aug 2002
24.235.64.0/212kARINUS2nd Sept 2005
24.236.0.0/198.2kARINUS13th Oct 1997
24.244.112.0/204.1kARINCA22nd May 2008
24.31.64.0/1816.4kARINUS2nd Mar 1999
24.38.144.0/204.1kARINCA15th Jun 2007
24.40.192.0/198.2kARINUS16th Sept 2005
24.48.160.0/24256ARINUS22nd Oct 2008
24.50.128.0/204.1kARINUS22nd May 2009
24.50.144.0/204.1kARINUS28th Oct 2009
24.56.152.0/212kARINUS17th Sept 2025
24.75.248.0/212kARINUS17th Sept 2025
24.75.96.0/204.1kARINUS1st May 2003
2400:1040::/324.3B × /64APNICCN9th Nov 2016
2400:1060::/324.3B × /64APNICVN7th Oct 2021
2400:10a0::/324.3B × /64APNICIN7th Oct 2021
2400:10c0::/324.3B × /64APNICBD10th Nov 2016
2400:10e0::/324.3B × /64APNICAU8th Oct 2021
2400:1100::/324.3B × /64APNICSG31st Mar 2011
2400:1140::/324.3B × /64APNICBD10th Nov 2016
2400:11a0::/324.3B × /64APNICBD10th Oct 2021
2400:1200::/324.3B × /64APNICNZ10th Mar 2010
2400:1260::/324.3B × /64APNICMY13th Oct 2021
2400:12a0::/324.3B × /64APNICBD13th Oct 2021
2400:12c0::/324.3B × /64APNICCN10th Nov 2016
2400:1300::/324.3B × /64APNICTW1st Apr 2011
2400:1320::/324.3B × /64APNICMY13th Oct 2021
2400:1340::/324.3B × /64APNICCN10th Nov 2016
2400:1380::/324.3B × /64APNICCN24th Sept 2013
2400:13a0::/324.3B × /64APNICHK13th Oct 2021
2400:13c0::/324.3B × /64APNICAU11th Nov 2016
2400:1400::/324.3B × /64APNICID9th Jun 2009
2400:1460::/324.3B × /64APNICPK14th Oct 2021
2400:14a0::/324.3B × /64APNICIN14th Oct 2021