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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 35751 to 35800 of 85346
PrefixAddressesRegistryCountryAllocated
2001:678:a44::/4865.5k × /64RIPE NCCPL26th Mar 2019
2001:678:a48::/4865.5k × /64RIPE NCCFR29th Mar 2019
2001:678:a4::/4865.5k × /64RIPE NCCAT2nd Mar 2015
2001:678:a4c::/4865.5k × /64RIPE NCCFR1st Apr 2019
2001:678:a54::/4865.5k × /64RIPE NCCEE9th Apr 2019
2001:678:a58::/4865.5k × /64RIPE NCCDE9th Apr 2019
2001:678:a60::/4865.5k × /64RIPE NCCRU11th Apr 2019
2001:678:a64::/4865.5k × /64RIPE NCCFR16th Apr 2019
2001:678:a70::/4865.5k × /64RIPE NCCRU25th Apr 2019
2001:678:a78::/4865.5k × /64RIPE NCCPL26th Apr 2019
2001:678:a84::/4865.5k × /64RIPE NCCDE12th Jun 2019
2001:678:a94::/4865.5k × /64RIPE NCCPL14th Jun 2019
2001:678:a::/4865.5k × /64RIPE NCCBE24th Nov 2008
2001:678:aa0::/4865.5k × /64RIPE NCCDE18th Jun 2019
2001:678:aa8::/4865.5k × /64RIPE NCCGB18th Jun 2019
2001:678:ae0::/4865.5k × /64RIPE NCCUA5th Aug 2019
2001:678:ae8::/4865.5k × /64RIPE NCCNL19th Dec 2022
2001:678:af0::/4865.5k × /64RIPE NCCUA16th Aug 2019
2001:678:af4::/4865.5k × /64RIPE NCCUA21st Aug 2019
2001:678:af8::/4865.5k × /64RIPE NCCCH29th Aug 2019
2001:678:afc::/4865.5k × /64RIPE NCCIS2nd Sept 2019
2001:678:b00::/4865.5k × /64RIPE NCCDE4th Sept 2019
2001:678:b04::/4865.5k × /64RIPE NCCGB9th Sept 2019
2001:678:b08::/4865.5k × /64RIPE NCCIT27th Sept 2023
2001:678:b0::/46262k × /64RIPE NCCIR15th Apr 2015
2001:678:b20::/4865.5k × /64RIPE NCCHK13th Aug 2026
2001:678:b2c::/4865.5k × /64RIPE NCCGB7th Oct 2019
2001:678:b34::/4865.5k × /64RIPE NCCRU28th Apr 2026
2001:678:b38::/4865.5k × /64RIPE NCCDE17th Oct 2019
2001:678:b3c::/4865.5k × /64RIPE NCCRU17th Oct 2019
2001:678:b48::/4865.5k × /64RIPE NCCRU18th Oct 2019
2001:678:b4c::/4865.5k × /64RIPE NCCUA25th Oct 2019
2001:678:b54::/4865.5k × /64RIPE NCCSE8th Jan 2026
2001:678:b80::/4865.5k × /64RIPE NCCLV13th Nov 2019
2001:678:b84::/4865.5k × /64RIPE NCCCH22nd Nov 2019
2001:678:b88::/4865.5k × /64RIPE NCCLV13th Nov 2019
2001:678:b8c::/4865.5k × /64RIPE NCCUA22nd Nov 2019
2001:678:ba0::/4865.5k × /64RIPE NCCUA15th Nov 2019
2001:678:bd4::/4865.5k × /64RIPE NCCRU24th Dec 2019
2001:678:be0::/4865.5k × /64RIPE NCCCZ3rd Jan 2020
2001:678:bec::/4865.5k × /64RIPE NCCRU14th Jan 2020
2001:678:bf0::/4865.5k × /64RIPE NCCGR16th Jan 2020
2001:678:bfc::/4865.5k × /64RIPE NCCCH21st Jan 2020
2001:678:c04::/4865.5k × /64RIPE NCCUS10th Jun 2025
2001:678:c0c::/4865.5k × /64RIPE NCCIL24th Jan 2020
2001:678:c18::/4865.5k × /64RIPE NCCGB6th Feb 2026
2001:678:c1c::/4865.5k × /64RIPE NCCAT24th Jan 2020
2001:678:c20::/4865.5k × /64RIPE NCCRO1st Aug 2024
2001:678:c24::/4865.5k × /64RIPE NCCDE27th Jan 2020
2001:678:c2c::/4865.5k × /64RIPE NCCDE26th Aug 2020