asn.dev

Address space

AS21859 ZEN-ECN

Hosting DROP-listed space ARIN Content

IPv4 prefixes 997 668K addresses
IPv6 prefixes 168
Most common size /24 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/18
/18: 1
1
/19
/19: 5
5
/20
/20: 19
19
/21
/21: 69
69
/22
/22: 129
129
/23
/23: 239
239
/24
/24: 535
535

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
/29
/29: 7
7
/33
/33: 2
2
/34
/34: 3
3
/35
/35: 2
2
/36
/36: 10
10
/37
/37: 4
4
/38
/38: 5
5
/39
/39: 6
6
/40
/40: 6
6
/41
/41: 6
6
/42
/42: 6
6
/43
/43: 6
6
/44
/44: 6
6
/45
/45: 7
7
/46
/46: 12
12
/47
/47: 27
27
/48
/48: 53
53

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America1,165