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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Unannounced blocks in Canada

3,775 blocks match, ordered by prefix.

Allocated but unannounced blocks, 1601 to 1650 of 3775
PrefixAddressesRegistryCountryAllocated
199.43.113.0/24256ARINCA6th Jun 1994
199.43.116.0/24256ARINCA8th Mar 1994
199.43.117.0/24256ARINCA11th Mar 1994
199.43.118.0/24256ARINCA29th Mar 1994
199.43.122.0/24256ARINCA26th Apr 1994
199.43.123.0/24256ARINCA26th Apr 1994
199.43.124.0/221kARINCA26th Apr 1994
199.43.128.0/23512ARINCA26th Apr 1994
199.43.136.0/212kARINCA14th Mar 1994
199.43.144.0/23512ARINCA10th Jul 2014
199.43.147.0/24256ARINCA14th Mar 1994
199.43.150.0/23512ARINCA10th Mar 1994
199.43.152.0/212kARINCA10th Mar 1994
199.43.160.0/212kARINCA10th Mar 1994
199.43.168.0/221kARINCA10th Mar 1994
199.43.2.0/24256ARINCA12th Jan 1994
199.43.243.0/24256ARINCA7th Dec 1993
199.43.244.0/23512ARINCA7th Dec 1993
199.43.248.0/24256ARINCA17th May 1994
199.43.3.0/24256ARINCA1st Feb 1994
199.48.168.0/24256ARINCA17th Jan 2018
199.48.216.0/212kARINCA2nd Nov 2010
199.60.117.0/24256ARINCA23rd Nov 1993
199.60.121.0/24256ARINCA23rd Nov 1993
199.60.122.0/24256ARINCA23rd Nov 1994
199.60.128.0/204.1kARINCA3rd Mar 1994
199.60.152.0/221kARINCA29th Mar 1994
199.60.156.0/23512ARINCA4th Apr 1994
199.60.158.0/24256ARINCA4th Apr 1994
199.60.159.0/24256ARINCA23rd Nov 1993
199.60.192.0/204.1kARINCA3rd Jan 1994
199.60.208.0/23512ARINCA26th Apr 1994
199.60.210.0/23512ARINCA12th May 1994
199.60.213.0/24256ARINCA9th Jun 1994
199.60.214.0/24256ARINCA9th Jun 1994
199.60.216.0/23512ARINCA23rd Jan 1996
199.60.223.0/24256ARINCA23rd Nov 1993
199.60.224.0/24256ARINCA23rd Nov 1993
199.60.233.0/24256ARINCA23rd Nov 1993
199.60.234.0/23512ARINCA23rd Nov 1993
199.60.236.0/24256ARINCA23rd Nov 1993
199.60.238.0/24256ARINCA23rd Nov 1993
199.60.240.0/212kARINCA15th Dec 1993
199.60.248.0/23512ARINCA23rd Nov 1993
199.60.250.0/24256ARINCA23rd Nov 1993
199.60.251.0/24256ARINCA23rd Nov 1993
199.60.253.0/24256ARINCA23rd Nov 1993
199.60.254.0/24256ARINCA23rd Nov 1993
199.60.26.0/23512ARINCA7th Jan 1994
199.60.29.0/24256ARINCA18th Jan 1994