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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through RIPE NCC, largest first.

Unannounced blocks registered through RIPE NCC

25,318 blocks match, ordered by prefix.

Allocated but unannounced blocks, 13751 to 13800 of 25318
PrefixAddressesRegistryCountryAllocated
2a03:b180::/324.3B × /64RIPE NCCAE21st Oct 2011
2a03:b1c0::/324.3B × /64RIPE NCCRU31st Dec 2012
2a03:b20::/324.3B × /64RIPE NCCMT9th Jul 2014
2a03:b2c0::/2934.4B × /64RIPE NCCLT14th Jun 2019
2a03:b340::/324.3B × /64RIPE NCCIT2nd Apr 2015
2a03:b380::/324.3B × /64RIPE NCCDE24th Oct 2011
2a03:b3c0::/324.3B × /64RIPE NCCRU14th Feb 2017
2a03:b400::/324.3B × /64RIPE NCCDE17th Jan 2011
2a03:b40::/324.3B × /64RIPE NCCES8th Oct 2012
2a03:b440::/324.3B × /64RIPE NCCGB2nd Jan 2013
2a03:b5c0::/324.3B × /64RIPE NCCFR3rd Jan 2013
2a03:b600::/2934.4B × /64RIPE NCCIR18th Jan 2024
2a03:b6c0::/324.3B × /64RIPE NCCFR3rd Jan 2013
2a03:b740::/324.3B × /64RIPE NCCES3rd Jan 2013
2a03:b800::/324.3B × /64RIPE NCCGB20th Dec 2010
2a03:b80::/324.3B × /64RIPE NCCFI10th Aug 2011
2a03:b840::/324.3B × /64RIPE NCCFR4th Jan 2013
2a03:b980::/2934.4B × /64RIPE NCCCH26th Jun 2026
2a03:bac0::/324.3B × /64RIPE NCCFR8th Jan 2013
2a03:bbc0::/324.3B × /64RIPE NCCNL8th Jan 2013
2a03:bc0::/324.3B × /64RIPE NCCCH2nd Jul 2025
2a03:bc80::/2934.4B × /64RIPE NCCES26th Oct 2011
2a03:bd40::/2934.4B × /64RIPE NCCBA9th Jan 2013
2a03:be40::/324.3B × /64RIPE NCCGB9th Jan 2013
2a03:c080::/324.3B × /64RIPE NCCSA27th Oct 2011
2a03:c0::/324.3B × /64RIPE NCCDK3rd Oct 2012
2a03:c0c0::/324.3B × /64RIPE NCCPL10th Jan 2013
2a03:c180::/324.3B × /64RIPE NCCIT27th Oct 2011
2a03:c1c0::/324.3B × /64RIPE NCCIT10th Jan 2013
2a03:c240::/324.3B × /64RIPE NCCGE10th Jan 2013
2a03:c40::/2934.4B × /64RIPE NCCPS8th Oct 2012
2a03:c440::/324.3B × /64RIPE NCCRU11th Jan 2013
2a03:c540::/324.3B × /64RIPE NCCFI11th Jan 2013
2a03:c5c0::/324.3B × /64RIPE NCCIL11th Jan 2013
2a03:c640::/324.3B × /64RIPE NCCGB11th Jan 2013
2a03:c700::/2934.4B × /64RIPE NCCRU15th Apr 2011
2a03:c740::/324.3B × /64RIPE NCCBY11th Jan 2013
2a03:c840::/324.3B × /64RIPE NCCEE14th Jan 2013
2a03:c880::/324.3B × /64RIPE NCCES28th Oct 2011
2a03:c900::/324.3B × /64RIPE NCCAZ7th May 2025
2a03:cb40::/324.3B × /64RIPE NCCRU15th Jan 2013
2a03:cb80::/2934.4B × /64RIPE NCCBA31st Oct 2011
2a03:cc0::/2934.4B × /64RIPE NCCAT9th Sept 2022
2a03:cc80::/2934.4B × /64RIPE NCCBA31st Oct 2011
2a03:ccc0::/324.3B × /64RIPE NCCRU16th Jan 2013
2a03:cd40::/324.3B × /64RIPE NCCSE16th Jan 2013
2a03:cd80::/324.3B × /64RIPE NCCSK31st Oct 2011
2a03:cdc0::/2934.4B × /64RIPE NCCNL8th Jun 2026
2a03:cec0::/324.3B × /64RIPE NCCIT7th Apr 2015
2a03:d00::/324.3B × /64RIPE NCCDK25th Mar 2011