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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,356 blocks match, ordered by prefix.

Allocated but unannounced blocks, 36901 to 36950 of 85356
PrefixAddressesRegistryCountryAllocated
2001:67c:c50::/4865.5k × /64RIPE NCCRU28th Mar 2023
2001:67c:c54::/4865.5k × /64RIPE NCCSE30th Mar 2023
2001:67c:c58::/4865.5k × /64RIPE NCCAT6th Apr 2023
2001:67c:c5c::/4865.5k × /64RIPE NCCSE13th Apr 2023
2001:67c:c68::/4865.5k × /64RIPE NCCSA11th Feb 2026
2001:67c:c70::/4865.5k × /64RIPE NCCDK19th Apr 2023
2001:67c:c78::/4865.5k × /64RIPE NCCRU20th Apr 2023
2001:67c:c7c::/4865.5k × /64RIPE NCCRU31st Oct 2023
2001:67c:c80::/4865.5k × /64RIPE NCCNL24th Apr 2023
2001:67c:c84::/4865.5k × /64RIPE NCCDE25th Apr 2023
2001:67c:c88::/4865.5k × /64RIPE NCCUS11th Feb 2026
2001:67c:c8::/4865.5k × /64RIPE NCCCH9th Dec 2009
2001:67c:c8c::/4865.5k × /64RIPE NCCDE1st May 2023
2001:67c:c90::/4865.5k × /64RIPE NCCPL1st May 2023
2001:67c:c::/4865.5k × /64RIPE NCCPL26th May 2009
2001:67c:cb4::/4865.5k × /64RIPE NCCUA1st Jun 2023
2001:67c:cc0::/4865.5k × /64RIPE NCCUS21st Jul 2023
2001:67c:cc4::/4865.5k × /64RIPE NCCUS21st Jul 2023
2001:67c:ccc::/4865.5k × /64RIPE NCCRU25th Jul 2023
2001:67c:cd0::/4865.5k × /64RIPE NCCSI26th Jul 2023
2001:67c:cec::/4865.5k × /64RIPE NCCDE10th Aug 2023
2001:67c:cf0::/4865.5k × /64RIPE NCCSK22nd Aug 2023
2001:67c:cf4::/4865.5k × /64RIPE NCCSK22nd Aug 2023
2001:67c:cf8::/4865.5k × /64RIPE NCCSK22nd Aug 2023
2001:67c:d00::/4865.5k × /64RIPE NCCUA25th Aug 2023
2001:67c:d08::/4865.5k × /64RIPE NCCSE28th Aug 2023
2001:67c:d0::/4865.5k × /64RIPE NCCAT18th Dec 2009
2001:67c:d18::/4865.5k × /64RIPE NCCDE29th Jan 2025
2001:67c:d1c::/4865.5k × /64RIPE NCCDK11th Sept 2023
2001:67c:d30::/4865.5k × /64RIPE NCCDE11th Apr 2024
2001:67c:d40::/4865.5k × /64RIPE NCCPL6th Oct 2023
2001:67c:d44::/4865.5k × /64RIPE NCCGR12th Oct 2023
2001:67c:d48::/4865.5k × /64RIPE NCCRS24th Oct 2023
2001:67c:d50::/4865.5k × /64RIPE NCCDE24th Nov 2023
2001:67c:d58::/4865.5k × /64RIPE NCCUS29th Nov 2023
2001:67c:d64::/4865.5k × /64RIPE NCCPL4th Dec 2023
2001:67c:d7c::/4865.5k × /64RIPE NCCFR9th Jan 2024
2001:67c:d80::/4865.5k × /64RIPE NCCUS10th Jan 2024
2001:67c:d90::/4865.5k × /64RIPE NCCGB10th Jan 2024
2001:67c:d98::/4865.5k × /64RIPE NCCIR18th Jan 2024
2001:67c:db4::/4865.5k × /64RIPE NCCUZ31st Jan 2024
2001:67c:db8::/4865.5k × /64RIPE NCCIR31st Jan 2024
2001:67c:dbc::/4865.5k × /64RIPE NCCMT31st Jan 2024
2001:67c:dd8::/4865.5k × /64RIPE NCCEE12th Aug 2025
2001:67c:de0::/4865.5k × /64RIPE NCCDE1st Jul 2026
2001:67c:de4::/4865.5k × /64RIPE NCCPL13th Feb 2024
2001:67c:df8::/4865.5k × /64RIPE NCCGR19th Feb 2024
2001:67c:dfc::/4865.5k × /64RIPE NCCAT19th Feb 2024
2001:67c:e04::/4865.5k × /64RIPE NCCUA14th Jan 2025
2001:67c:e10::/4865.5k × /64RIPE NCCDE26th Feb 2024