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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

25,283 blocks match, ordered by prefix.

Allocated but unannounced blocks, 19101 to 19150 of 25283
PrefixAddressesRegistryCountryAllocated
2a0f:3800::/2934.4B × /64RIPE NCCAT29th Aug 2019
2a0f:3840::/2934.4B × /64RIPE NCCPL29th Oct 2019
2a0f:3880::/2934.4B × /64RIPE NCCPL24th Sept 2019
2a0f:38c0::/2934.4B × /64RIPE NCCFO29th Oct 2019
2a0f:3a40::/2934.4B × /64RIPE NCCES30th Oct 2019
2a0f:3a80::/2934.4B × /64RIPE NCCDE24th Sept 2019
2a0f:3b40::/2934.4B × /64RIPE NCCPL30th Oct 2019
2a0f:3bc0::/2934.4B × /64RIPE NCCME6th Dec 2022
2a0f:3c00::/2934.4B × /64RIPE NCCIT2nd Sept 2019
2a0f:3c0::/2934.4B × /64RIPE NCCGB23rd Oct 2019
2a0f:3c80::/2934.4B × /64RIPE NCCIT24th Sept 2019
2a0f:3d00::/2934.4B × /64RIPE NCCCH10th Sept 2019
2a0f:3d40::/2934.4B × /64RIPE NCCDE30th Oct 2019
2a0f:3e40::/2934.4B × /64RIPE NCCSE31st Oct 2019
2a0f:3ec0::/2934.4B × /64RIPE NCCKR22nd Oct 2025
2a0f:3f40::/2934.4B × /64RIPE NCCNL22nd Oct 2025
2a0f:3fc0::/2934.4B × /64RIPE NCCDE31st Oct 2019
2a0f:400::/2934.4B × /64RIPE NCCUA30th Aug 2019
2a0f:4040::/2934.4B × /64RIPE NCCSC23rd Oct 2025
2a0f:4080::/2934.4B × /64RIPE NCCFI25th Sept 2019
2a0f:40::/2934.4B × /64RIPE NCCNL22nd Oct 2019
2a0f:40c0::/2934.4B × /64RIPE NCCAT31st Oct 2019
2a0f:4100::/2934.4B × /64RIPE NCCUA25th Apr 2022
2a0f:41c0::/2934.4B × /64RIPE NCCUA23rd Oct 2025
2a0f:4380::/2934.4B × /64RIPE NCCRU1st Feb 2022
2a0f:43c0::/324.3B × /64RIPE NCCIT1st Nov 2019
2a0f:440::/2934.4B × /64RIPE NCCSE23rd Oct 2019
2a0f:45c0::/2934.4B × /64RIPE NCCIT1st Nov 2019
2a0f:4600::/2934.4B × /64RIPE NCCNL4th Sept 2019
2a0f:46c0::/2934.4B × /64RIPE NCCTR1st Nov 2019
2a0f:4740::/2934.4B × /64RIPE NCCIT1st Nov 2019
2a0f:47c0::/2934.4B × /64RIPE NCCUS1st Nov 2019
2a0f:4880::/2934.4B × /64RIPE NCCNL26th Sept 2019
2a0f:4900::/2934.4B × /64RIPE NCCBE11th Sept 2019
2a0f:4940::/324.3B × /64RIPE NCCPL1st Nov 2019
2a0f:49c0::/2934.4B × /64RIPE NCCBE1st Nov 2019
2a0f:4a80::/2934.4B × /64RIPE NCCMH6th Feb 2026
2a0f:4b00::/2934.4B × /64RIPE NCCNL11th Sept 2019
2a0f:4b80::/2934.4B × /64RIPE NCCUA26th Sept 2019
2a0f:4c80::/2934.4B × /64RIPE NCCCH26th Sept 2019
2a0f:4cc0::/2934.4B × /64RIPE NCCUS4th Nov 2019
2a0f:4d00::/2934.4B × /64RIPE NCCTR29th Sept 2022
2a0f:4d40::/2934.4B × /64RIPE NCCLU5th Nov 2019
2a0f:4dc0::/2934.4B × /64RIPE NCCIE5th Nov 2019
2a0f:4e00::/2934.4B × /64RIPE NCCBG4th Sept 2019
2a0f:4ec0::/2934.4B × /64RIPE NCCES5th Nov 2019
2a0f:4f40::/2934.4B × /64RIPE NCCRO5th Nov 2019
2a0f:4fc0::/2934.4B × /64RIPE NCCSI5th Nov 2019
2a0f:5040::/2934.4B × /64RIPE NCCIR5th Nov 2019
2a0f:50c0::/2934.4B × /64RIPE NCCSE5th Nov 2019