asn.dev

Address space

AS36040 YOUTUBE

Hosting ARIN

IPv4 prefixes 48 21.50K addresses
IPv6 prefixes 27
Most common size /24 IPv4
Flagged 10

Shape

IPv4 prefix sizes

All IPv4
/21
/21: 1
1
/22
/22: 5
5
/23
/23: 14
14
/24
/24: 28
28

A wall of /24s usually means many small customer assignments or fine-grained traffic engineering; a few short prefixes means large contiguous allocations announced whole.

Shape

IPv6 prefix sizes

All IPv6
/44
/44: 1
1
/45
/45: 2
2
/46
/46: 2
2
/47
/47: 4
4
/48
/48: 8
8
/63
/63: 1
1
/64
/64: 9
9

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America75

Review

Flagged prefixes

10 of 75
PrefixFamilyAddressesCountryFlags
2001:fb0:109f:12::/64IPv6/64USToo specific
2001:fb0:109f:14::/64IPv6/64USToo specific
2001:fb0:109f:18::/63IPv6/63USToo specific
2001:fb0:109f:1c::/64IPv6/64USToo specific
2001:fb0:109f:8007::/64IPv6/64USToo specific
2001:fb0:109f:8009::/64IPv6/64USToo specific
2001:fb0:109f:8010::/64IPv6/64USToo specific
2001:fb0:109f:8013::/64IPv6/64USToo specific
2001:fb0:109f:8014::/64IPv6/64USToo specific
2001:fb0:109f:8018::/64IPv6/64USToo specific

A flag is an observation, not an accusation. Very large and very specific prefixes are both legitimate in the right context.