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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,108 blocks match, ordered by prefix.

Allocated but unannounced blocks, 73001 to 73050 of 85108
PrefixAddressesRegistryCountryAllocated
2a0a:af40::/2934.4B × /64RIPE NCCRU21st Oct 2019
2a0a:af80::/2934.4B × /64RIPE NCCGB6th Dec 2016
2a0a:afc0::/2934.4B × /64RIPE NCCIQ13th Jan 2020
2a0a:b000::/324.3B × /64RIPE NCCDE9th Aug 2016
2a0a:b00::/2934.4B × /64RIPE NCCGB29th Mar 2022
2a0a:b040::/2934.4B × /64RIPE NCCFR24th Apr 2017
2a0a:b0c0::/2934.4B × /64RIPE NCCIT24th Apr 2017
2a0a:b100::/2934.4B × /64RIPE NCCRU3rd Oct 2016
2a0a:b140::/324.3B × /64RIPE NCCMK24th Apr 2017
2a0a:b180::/2934.4B × /64RIPE NCCPL7th Dec 2016
2a0a:b1c0::/2934.4B × /64RIPE NCCRU24th Apr 2017
2a0a:b200::/2934.4B × /64RIPE NCCAE2nd Sept 2016
2a0a:b280::/2934.4B × /64RIPE NCCFI19th Dec 2019
2a0a:b2c0::/2934.4B × /64RIPE NCCES24th Apr 2017
2a0a:b340::/2934.4B × /64RIPE NCCPL24th Apr 2017
2a0a:b480::/2934.4B × /64RIPE NCCDE7th Dec 2016
2a0a:b4c0::/2934.4B × /64RIPE NCCFR24th Apr 2017
2a0a:b500::/2934.4B × /64RIPE NCCAT3rd Oct 2016
2a0a:b540::/324.3B × /64RIPE NCCGB24th Apr 2017
2a0a:b580::/2934.4B × /64RIPE NCCRU7th Dec 2016
2a0a:b5c0::/2934.4B × /64RIPE NCCIT26th Mar 2020
2a0a:b740::/2934.4B × /64RIPE NCCFR25th Apr 2017
2a0a:b800::/2934.4B × /64RIPE NCCCY3rd Jan 2020
2a0a:b80::/2934.4B × /64RIPE NCCGB21st Aug 2019
2a0a:b840::/2934.4B × /64RIPE NCCNO25th Apr 2017
2a0a:b880::/2934.4B × /64RIPE NCCIL7th Dec 2016
2a0a:b8c0::/324.3B × /64RIPE NCCRU25th Apr 2017
2a0a:b940::/2934.4B × /64RIPE NCCDE26th Apr 2017
2a0a:b9c0::/2934.4B × /64RIPE NCCES26th Apr 2017
2a0a:ba40::/2934.4B × /64RIPE NCCUS26th Apr 2017
2a0a:ba80::/2934.4B × /64RIPE NCCDE7th Dec 2016
2a0a:bb40::/2934.4B × /64RIPE NCCUS26th Apr 2017
2a0a:bc0::/2934.4B × /64RIPE NCCUZ22nd Apr 2024
2a0a:bc40::/324.3B × /64RIPE NCCIR28th Apr 2017
2a0a:bc80::/2934.4B × /64RIPE NCCIR18th Nov 2025
2a0a:bd00::/324.3B × /64RIPE NCCTR4th Oct 2016
2a0a:bd40::/2934.4B × /64RIPE NCCIT28th Apr 2017
2a0a:bdc0::/2934.4B × /64RIPE NCCCZ28th Apr 2017
2a0a:bec0::/324.3B × /64RIPE NCCDE24th Jul 2025
2a0a:bf00::/2934.4B × /64RIPE NCCES4th Oct 2016
2a0a:bf40::/2934.4B × /64RIPE NCCNL28th Apr 2017
2a0a:bf80::/2934.4B × /64RIPE NCCUA8th Dec 2016
2a0a:c000::/2934.4B × /64RIPE NCCES5th Aug 2016
2a0a:c00::/2934.4B × /64RIPE NCCES15th Aug 2016
2a0a:c040::/2934.4B × /64RIPE NCCNO1st May 2017
2a0a:c0c0::/2934.4B × /64RIPE NCCRU1st May 2017
2a0a:c100::/2934.4B × /64RIPE NCCFR4th Oct 2016
2a0a:c140::/2934.4B × /64RIPE NCCAM12th Feb 2024
2a0a:c180::/2934.4B × /64RIPE NCCIT13th Jul 2018
2a0a:c240::/324.3B × /64RIPE NCCDE1st May 2017