asn.dev

Address space

AS3300 BT

Residential DROP-listed space RIPE

IPv4 prefixes 103 513K addresses
IPv6 prefixes 21
Most common size /24 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/16
/16: 2
2
/17
/17: 4
4
/18
/18: 7
7
/19
/19: 6
6
/20
/20: 7
7
/21
/21: 14
14
/22
/22: 12
12
/23
/23: 18
18
/24
/24: 33
33

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
/33
/33: 1
1
/34
/34: 3
3
/35
/35: 2
2
/36
/36: 4
4
/37
/37: 2
2
/38
/38: 3
3
/39
/39: 5
5
/40
/40: 1
1

Geography

Where the space lands

CountryNamePrefixes
GBUnited Kingdom124