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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with the most unannounced blocks, largest first.

Unannounced blocks

85,124 blocks match, ordered by prefix.

Allocated but unannounced blocks, 70401 to 70450 of 85124
PrefixAddressesRegistryCountryAllocated
2a04:b580::/2934.4B × /64RIPE NCCDE24th Feb 2014
2a04:b600::/2934.4B × /64RIPE NCCTR3rd May 2016
2a04:b680::/2934.4B × /64RIPE NCCGB26th Feb 2014
2a04:b6c0::/2934.4B × /64RIPE NCCGB27th Feb 2014
2a04:b780::/2934.4B × /64RIPE NCCGB28th Feb 2014
2a04:b7c0::/2934.4B × /64RIPE NCCPL7th Jun 2016
2a04:b840::/2934.4B × /64RIPE NCCPL3rd Mar 2014
2a04:b8c0::/2934.4B × /64RIPE NCCIT4th Mar 2014
2a04:b980::/2934.4B × /64RIPE NCCCH4th Mar 2014
2a04:b9c0::/2934.4B × /64RIPE NCCSE5th Mar 2014
2a04:ba00::/2934.4B × /64RIPE NCCNL25th Aug 2025
2a04:ba40::/2934.4B × /64RIPE NCCUA14th Apr 2023
2a04:bb00::/2934.4B × /64RIPE NCCDE12th Jun 2018
2a04:bb80::/2934.4B × /64RIPE NCCRU7th Mar 2014
2a04:bbc0::/2934.4B × /64RIPE NCCGB7th Mar 2014
2a04:bc0::/2934.4B × /64RIPE NCCNO11th Feb 2013
2a04:bc40::/2934.4B × /64RIPE NCCUA7th Mar 2014
2a04:bc80::/2934.4B × /64RIPE NCCIE11th Mar 2014
2a04:bcc0::/2934.4B × /64RIPE NCCSE11th Mar 2014
2a04:bd00::/2934.4B × /64RIPE NCCFR11th Mar 2014
2a04:bd80::/2934.4B × /64RIPE NCCFI12th Mar 2014
2a04:be40::/2934.4B × /64RIPE NCCCH12th Mar 2014
2a04:bec0::/2934.4B × /64RIPE NCCIT14th Mar 2014
2a04:bf00::/2934.4B × /64RIPE NCCDE14th Mar 2014
2a04:bf40::/2934.4B × /64RIPE NCCRS31st Mar 2015
2a04:bfc0::/2934.4B × /64RIPE NCCCH14th Mar 2014
2a04:c000::/2934.4B × /64RIPE NCCTR13th Oct 2025
2a04:c040::/2934.4B × /64RIPE NCCGB9th Sept 2020
2a04:c080::/2934.4B × /64RIPE NCCTR11th Jun 2026
2a04:c140::/2934.4B × /64RIPE NCCIR19th Mar 2014
2a04:c1c0::/2934.4B × /64RIPE NCCIT20th Mar 2014
2a04:c200::/2934.4B × /64RIPE NCCGE20th Mar 2014
2a04:c280::/2934.4B × /64RIPE NCCEE1st Apr 2015
2a04:c2c0::/2934.4B × /64RIPE NCCDK21st Jul 2015
2a04:c340::/2934.4B × /64RIPE NCCRU21st Mar 2014
2a04:c380::/2934.4B × /64RIPE NCCGB9th Jan 2019
2a04:c3c0::/2934.4B × /64RIPE NCCCZ25th Mar 2014
2a04:c400::/2934.4B × /64RIPE NCCOM25th Mar 2014
2a04:c4c0::/2934.4B × /64RIPE NCCDE26th Mar 2014
2a04:c540::/2934.4B × /64RIPE NCCGB27th Mar 2014
2a04:c640::/2934.4B × /64RIPE NCCIT27th Mar 2014
2a04:c6c0::/2934.4B × /64RIPE NCCSE25th Jan 2016
2a04:c700::/2934.4B × /64RIPE NCCGB1st Apr 2015
2a04:c780::/2934.4B × /64RIPE NCCNL31st Mar 2014
2a04:c800::/2934.4B × /64RIPE NCCNL1st Apr 2014
2a04:c80::/2934.4B × /64RIPE NCCES12th Feb 2013
2a04:c8c0::/2934.4B × /64RIPE NCCGB13th May 2025
2a04:ca00::/2934.4B × /64RIPE NCCGB3rd Apr 2014
2a04:ca40::/2934.4B × /64RIPE NCCTR4th Apr 2014
2a04:cb00::/2934.4B × /64RIPE NCCIT7th Apr 2014