asn.dev

Address space

AS37963 ALIBABA-CN-NET Hangzhou Alibaba Advertising Co.,Ltd.

Hosting APNIC

IPv4 prefixes 455 9.43M addresses
IPv6 prefixes 208
Most common size /22 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/14
/14: 8
8
/15
/15: 17
17
/16
/16: 38
38
/17
/17: 35
35
/18
/18: 36
36
/19
/19: 55
55
/20
/20: 50
50
/21
/21: 58
58
/22
/22: 59
59
/23
/23: 51
51
/24
/24: 48
48

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
/23
/23: 1
1
/24
/24: 1
1
/25
/25: 1
1
/26
/26: 1
1
/27
/27: 1
1
/29
/29: 1
1
/30
/30: 2
2
/31
/31: 5
5
/32
/32: 4
4
/33
/33: 5
5
/34
/34: 10
10
/35
/35: 12
12
/36
/36: 11
11
/37
/37: 13
13
/38
/38: 13
13
/39
/39: 13
13
/40
/40: 14
14
/41
/41: 12
12
/42
/42: 11
11
/43
/43: 13
13
/44
/44: 13
13
/45
/45: 13
13
/46
/46: 13
13
/47
/47: 11
11
/48
/48: 14
14

Geography

Where the space lands

CountryNamePrefixes
CNChina663