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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 35451 to 35500 of 85346
Prefix	Addresses	Registry	Country	Allocated
2001:678:10f8::/48	65.5k × /64	RIPE NCC	RO	27th Aug 2025
2001:678:1100::/48	65.5k × /64	RIPE NCC	RO	27th Aug 2025
2001:678:1118::/48	65.5k × /64	RIPE NCC	ES	29th Oct 2025
2001:678:111c::/48	65.5k × /64	RIPE NCC	ES	29th Oct 2025
2001:678:1128::/48	65.5k × /64	RIPE NCC	SK	4th Nov 2025
2001:678:1130::/48	65.5k × /64	RIPE NCC	AE	4th Nov 2025
2001:678:1134::/48	65.5k × /64	RIPE NCC	PL	7th Nov 2025
2001:678:1144::/48	65.5k × /64	RIPE NCC	TR	12th Nov 2025
2001:678:115c::/48	65.5k × /64	RIPE NCC	ES	25th Nov 2025
2001:678:1160::/48	65.5k × /64	RIPE NCC	NO	26th Nov 2025
2001:678:1178::/48	65.5k × /64	RIPE NCC	GB	10th Dec 2025
2001:678:118::/48	65.5k × /64	RIPE NCC	DE	8th Mar 2024
2001:678:1198::/48	65.5k × /64	RIPE NCC	UA	8th Jan 2026
2001:678:11a8::/48	65.5k × /64	RIPE NCC	GB	16th Jan 2026
2001:678:11ac::/48	65.5k × /64	RIPE NCC	GB	16th Jan 2026
2001:678:11b0::/48	65.5k × /64	RIPE NCC	NL	23rd Jan 2026
2001:678:11b4::/48	65.5k × /64	RIPE NCC	NL	10th Feb 2026
2001:678:11b8::/48	65.5k × /64	RIPE NCC	GB	24th Feb 2026
2001:678:11bc::/48	65.5k × /64	RIPE NCC	DK	25th Feb 2026
2001:678:11c::/48	65.5k × /64	RIPE NCC	SI	16th Dec 2024
2001:678:11e0::/48	65.5k × /64	RIPE NCC	CZ	2nd Mar 2026
2001:678:11ec::/48	65.5k × /64	RIPE NCC	FI	4th Mar 2026
2001:678:1208::/48	65.5k × /64	RIPE NCC	ES	18th Mar 2026
2001:678:1224::/48	65.5k × /64	RIPE NCC	UA	30th Mar 2026
2001:678:1228::/48	65.5k × /64	RIPE NCC	ES	2nd Apr 2026
2001:678:1230::/48	65.5k × /64	RIPE NCC	DE	2nd Apr 2026
2001:678:1234::/48	65.5k × /64	RIPE NCC	PL	8th Apr 2026
2001:678:1240::/48	65.5k × /64	RIPE NCC	DE	10th Apr 2026
2001:678:124::/48	65.5k × /64	RIPE NCC	RU	30th Mar 2016
2001:678:1254::/48	65.5k × /64	RIPE NCC	UA	17th Apr 2026
2001:678:1258::/48	65.5k × /64	RIPE NCC	DE	17th Apr 2026
2001:678:1260::/48	65.5k × /64	RIPE NCC	RO	1st May 2026
2001:678:1264::/48	65.5k × /64	RIPE NCC	NL	1st May 2026
2001:678:128::/48	65.5k × /64	RIPE NCC	RU	8th Jul 2020
2001:678:128c::/48	65.5k × /64	RIPE NCC	DE	19th May 2026
2001:678:1298::/48	65.5k × /64	RIPE NCC	PL	29th May 2026
2001:678:129c::/48	65.5k × /64	RIPE NCC	NO	29th May 2026
2001:678:12a0::/48	65.5k × /64	RIPE NCC	UA	5th Jun 2026
2001:678:12b0::/48	65.5k × /64	RIPE NCC	RU	26th Jun 2026
2001:678:12b8::/48	65.5k × /64	RIPE NCC	CN	26th Jun 2026
2001:678:12bc::/48	65.5k × /64	RIPE NCC	GB	30th Jun 2026
2001:678:12c0::/48	65.5k × /64	RIPE NCC	SI	16th Jul 2026
2001:678:12c4::/48	65.5k × /64	RIPE NCC	CN	16th Jul 2026
2001:678:12cc::/48	65.5k × /64	RIPE NCC	CN	16th Jul 2026
2001:678:12d0::/48	65.5k × /64	RIPE NCC	GB	31st Jul 2026
2001:678:12d8::/48	65.5k × /64	RIPE NCC	DE	31st Jul 2026
2001:678:12dc::/48	65.5k × /64	RIPE NCC	DE	31st Jul 2026
2001:678:12e4::/48	65.5k × /64	RIPE NCC	PL	7th Aug 2026
2001:678:12e8::/48	65.5k × /64	RIPE NCC	NL	10th Aug 2026
2001:678:12ec::/48	65.5k × /64	RIPE NCC	NL	10th Aug 2026