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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 36201 to 36250 of 85346
PrefixAddressesRegistryCountryAllocated
2001:67c:20f0::/4865.5k × /64RIPE NCCFR24th Feb 2011
2001:67c:2108::/4865.5k × /64RIPE NCCRU1st Mar 2011
2001:67c:2120::/4865.5k × /64RIPE NCCUA13th Nov 2024
2001:67c:2128::/4865.5k × /64RIPE NCCGE7th Mar 2011
2001:67c:212c::/4865.5k × /64RIPE NCCIT8th Mar 2011
2001:67c:2130::/4865.5k × /64RIPE NCCPL8th Mar 2011
2001:67c:2134::/4865.5k × /64RIPE NCCSE8th Mar 2011
2001:67c:213c::/4865.5k × /64RIPE NCCPL9th Mar 2011
2001:67c:2144::/4865.5k × /64RIPE NCCDE23rd Jul 2026
2001:67c:2150::/4865.5k × /64RIPE NCCNL16th Mar 2011
2001:67c:2158::/4865.5k × /64RIPE NCCPL23rd Dec 2015
2001:67c:2164::/4865.5k × /64RIPE NCCSA22nd Mar 2011
2001:67c:2168::/4865.5k × /64RIPE NCCFI23rd Mar 2011
2001:67c:216c::/4865.5k × /64RIPE NCCCZ24th Mar 2011
2001:67c:2178::/4865.5k × /64RIPE NCCDE24th Mar 2011
2001:67c:2180::/4865.5k × /64RIPE NCCAT28th Mar 2011
2001:67c:2194::/4865.5k × /64RIPE NCCCZ30th Mar 2011
2001:67c:21a0::/4865.5k × /64RIPE NCCIT4th Apr 2011
2001:67c:21a4::/4865.5k × /64RIPE NCCFI4th Apr 2011
2001:67c:21c4::/4865.5k × /64RIPE NCCRU13th Feb 2017
2001:67c:21c8::/4865.5k × /64RIPE NCCBG11th Apr 2011
2001:67c:21d4::/4865.5k × /64RIPE NCCSE12th Jun 2015
2001:67c:21e0::/4865.5k × /64RIPE NCCNO18th Apr 2011
2001:67c:21e4::/4865.5k × /64RIPE NCCSE18th Apr 2011
2001:67c:2220::/4865.5k × /64RIPE NCCCH29th Apr 2011
2001:67c:2224::/4865.5k × /64RIPE NCCUA29th Apr 2011
2001:67c:2228::/4865.5k × /64RIPE NCCSE29th Apr 2011
2001:67c:222c::/4865.5k × /64RIPE NCCSK3rd May 2011
2001:67c:2230::/4865.5k × /64RIPE NCCCH2nd Nov 2017
2001:67c:2234::/4865.5k × /64RIPE NCCRU14th Mar 2024
2001:67c:2238::/4865.5k × /64RIPE NCCCH6th May 2011
2001:67c:223c::/4865.5k × /64RIPE NCCDE13th Jun 2022
2001:67c:2240::/4865.5k × /64RIPE NCCNL3rd Jul 2026
2001:67c:2244::/4865.5k × /64RIPE NCCRU9th May 2011
2001:67c:2250::/4865.5k × /64RIPE NCCPL10th May 2011
2001:67c:2254::/4865.5k × /64RIPE NCCSI10th May 2011
2001:67c:2258::/4865.5k × /64RIPE NCCDE11th May 2011
2001:67c:2260::/4865.5k × /64RIPE NCCAT12th May 2011
2001:67c:2264::/4865.5k × /64RIPE NCCKG12th May 2011
2001:67c:2288::/4865.5k × /64RIPE NCCSI18th May 2011
2001:67c:2290::/4865.5k × /64RIPE NCCDE18th May 2011
2001:67c:2294::/4865.5k × /64RIPE NCCES18th May 2011
2001:67c:2298::/4865.5k × /64RIPE NCCGB19th May 2011
2001:67c:229c::/4865.5k × /64RIPE NCCFR14th Jan 2021
2001:67c:22a4::/4865.5k × /64RIPE NCCFR23rd May 2011
2001:67c:22a8::/4865.5k × /64RIPE NCCSI24th May 2011
2001:67c:22ac::/4865.5k × /64RIPE NCCSE24th May 2011
2001:67c:22b4::/4865.5k × /64RIPE NCCCZ26th May 2011
2001:67c:22c4::/4865.5k × /64RIPE NCCUA27th May 2011
2001:67c:22c::/4865.5k × /64RIPE NCCGB4th Jun 2010