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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with the most unannounced blocks, largest first.

Unannounced blocks

85,285 blocks match, ordered by prefix.

Allocated but unannounced blocks, 56001 to 56050 of 85285
PrefixAddressesRegistryCountryAllocated
2403:f300::/324.3B × /64APNICCN17th May 2012
2403:f340::/324.3B × /64APNICBD15th Nov 2018
2403:f380::/324.3B × /64APNICCN10th Dec 2015
2403:f540::/324.3B × /64APNICBD18th Nov 2018
2403:f580::/324.3B × /64APNICCN11th Dec 2015
2403:f5c0::/324.3B × /64APNICPK19th Nov 2018
2403:f640::/324.3B × /64APNICPH19th Nov 2018
2403:f740::/324.3B × /64APNICCN20th Nov 2018
2403:f80::/324.3B × /64APNICCN12th Oct 2015
2403:f8c0::/324.3B × /64APNICCN22nd Nov 2018
2403:f980::/324.3B × /64APNICCN14th Dec 2015
2403:f9c0::/324.3B × /64APNICBD22nd Nov 2018
2403:fb00::/324.3B × /64APNICCN18th May 2012
2403:fb40::/324.3B × /64APNICTW23rd Nov 2018
2403:fb80::/324.3B × /64APNICCN15th Dec 2015
2403:fc40::/324.3B × /64APNICCN25th Nov 2018
2403:fcc0::/324.3B × /64APNICPK25th Nov 2018
2403:fd00::/324.3B × /64APNICAU22nd May 2012
2403:fdc0::/324.3B × /64APNICAU26th Nov 2018
2403:fe40::/324.3B × /64APNICCN26th Nov 2018
2403:fe80::/324.3B × /64APNICCN16th Dec 2015
2403:fec0::/324.3B × /64APNICCN26th Nov 2018
2403:ff40::/324.3B × /64APNICBD26th Nov 2018
2403:ff80::/324.3B × /64APNICCN16th Dec 2015
2403:ffc1::/324.3B × /64APNICCN26th Nov 2023
2404:100::/324.3B × /64APNICCN23rd May 2012
2404:1040::/324.3B × /64APNICID6th Dec 2018
2404:1080::/324.3B × /64APNICCN25th Dec 2015
2404:10c0::/324.3B × /64APNICCN6th Dec 2018
2404:1180::/324.3B × /64APNICCN28th Dec 2015
2404:1240::/324.3B × /64APNICNZ7th Dec 2018
2404:1300::/324.3B × /64APNICJP30th May 2012
2404:1340::/324.3B × /64APNICIN7th Dec 2018
2404:1380::/324.3B × /64APNICBD30th Dec 2015
2404:1400::/324.3B × /64APNICID8th Feb 2010
2404:14c0::/324.3B × /64APNICCN10th Dec 2018
2404:1500::/324.3B × /64APNICIN31st May 2012
2404:1540::/324.3B × /64APNICNP10th Dec 2018
2404:158::/324.3B × /64APNICCN22nd Jun 2006
2404:15c0::/324.3B × /64APNICTW11th Dec 2018
2404:1600::/324.3B × /64APNICAU25th Aug 2010
2404:1601::/324.3B × /64APNICAU19th Nov 2014
2404:1680::/324.3B × /64APNICTH4th Jan 2016
2404:16c0::/324.3B × /64APNICBD11th Dec 2018
2404:1740::/324.3B × /64APNICBD11th Dec 2018
2404:1780::/324.3B × /64APNICMM4th Jan 2016
2404:178::/324.3B × /64APNICTW18th Aug 2006
2404:17c0::/324.3B × /64APNICIN11th Dec 2018
2404:1840::/324.3B × /64APNICAU12th Dec 2018
2404:1880::/324.3B × /64APNICCN5th Jan 2016