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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through RIPE NCC, largest first.

Unannounced blocks in Portugal

94 blocks match, ordered by prefix.

Allocated but unannounced blocks, 51 to 94 of 94
PrefixAddressesRegistryCountryAllocated
203.171.64.0/198.2kRIPE NCCPT5th Nov 2004
2a01:b020::/324.3B × /64RIPE NCCPT20th Mar 2014
2a02:138::/324.3B × /64RIPE NCCPT7th Mar 2008
2a02:740::/324.3B × /64RIPE NCCPT2nd Sept 2008
2a03:3f60::/324.3B × /64RIPE NCCPT7th Oct 2014
2a03:84e0::/324.3B × /64RIPE NCCPT27th Feb 2015
2a04:8940::/2934.4B × /64RIPE NCCPT21st Nov 2013
2a04:b040::/2934.4B × /64RIPE NCCPT13th Feb 2014
2a04:e040::/2934.4B × /64RIPE NCCPT20th May 2014
2a05:7540::/2934.4B × /64RIPE NCCPT2nd Dec 2014
2a05:7800::/2934.4B × /64RIPE NCCPT2nd Dec 2014
2a05:9640::/2934.4B × /64RIPE NCCPT14th May 2025
2a05:c800::/2934.4B × /64RIPE NCCPT13th Feb 2015
2a06:e640::/2934.4B × /64RIPE NCCPT31st Dec 2015
2a09:2840::/2934.4B × /64RIPE NCCPT22nd Jan 2019
2a09:5640::/324.3B × /64RIPE NCCPT8th Feb 2019
2a09:5b00::/2934.4B × /64RIPE NCCPT16th Nov 2018
2a0a:5b00::/2934.4B × /64RIPE NCCPT26th Sept 2016
2a0a:e3c0::/2934.4B × /64RIPE NCCPT4th Jun 2021
2a0b:8400::/2934.4B × /64RIPE NCCPT23rd Aug 2016
2a0b:e640::/2934.4B × /64RIPE NCCPT4th Sept 2017
2a0c:3840::/2934.4B × /64RIPE NCCPT20th Jan 2020
2a0c:9740::/2934.4B × /64RIPE NCCPT10th Aug 2026
2a0c:b800::/2934.4B × /64RIPE NCCPT26th Sept 2017
2a0d:2340::/2934.4B × /64RIPE NCCPT15th Aug 2018
2a0d:94c0::/2934.4B × /64RIPE NCCPT27th Sept 2018
2a0d:e300::/2934.4B × /64RIPE NCCPT14th Dec 2017
2a0d:f600::/2934.4B × /64RIPE NCCPT7th Jun 2018
2a0e:1f40::/2934.4B × /64RIPE NCCPT1st Jul 2019
2a0e:bc00::/2934.4B × /64RIPE NCCPT10th Apr 2019
2a10:1f80::/2934.4B × /64RIPE NCCPT24th Feb 2020
2a10:5000::/2934.4B × /64RIPE NCCPT15th Apr 2020
2a11:6740::/2934.4B × /64RIPE NCCPT14th Nov 2025
2a11:e740::/324.3B × /64RIPE NCCPT19th Feb 2026
2a13:3fc0::/2934.4B × /64RIPE NCCPT24th Nov 2022
2a13:67c0::/2934.4B × /64RIPE NCCPT20th Dec 2022
2a13:de80::/2934.4B × /64RIPE NCCPT27th Mar 2023
2a13:f2c0::/2934.4B × /64RIPE NCCPT27th Sept 2023
2a14:3840::/2934.4B × /64RIPE NCCPT9th Apr 2024
2a14:da80::/2934.4B × /64RIPE NCCPT31st Mar 2025
77.95.168.0/24256RIPE NCCPT17th Jan 2025
91.212.59.0/24256RIPE NCCPT16th Sept 2024
92.243.81.0/24256RIPE NCCPT15th Jan 2008
94.231.208.0/221kRIPE NCCPT28th Aug 2018