asn.dev

Address space

AS109 CISCOSYSTEMS

Unclassified ARIN

IPv4 prefixes 78 1.14M addresses
IPv6 prefixes 54
Most common size /22 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/14
/14: 1
1
/15
/15: 1
1
/16
/16: 5
5
/17
/17: 5
5
/18
/18: 7
7
/19
/19: 7
7
/20
/20: 11
11
/21
/21: 9
9
/22
/22: 13
13
/23
/23: 12
12
/24
/24: 7
7

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
/34
/34: 1
1
/35
/35: 3
3
/36
/36: 3
3
/37
/37: 3
3
/38
/38: 2
2
/39
/39: 4
4
/40
/40: 4
4
/41
/41: 4
4
/42
/42: 4
4
/43
/43: 3
3
/44
/44: 4
4
/45
/45: 7
7
/46
/46: 8
8
/47
/47: 4
4

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America132