asn.dev

Address space

AS4637 ASN-TELSTRA-GLOBAL Telstra Global

Unclassified APNIC

IPv4 prefixes 594 1.23M addresses
IPv6 prefixes 255
Most common size /24 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/16
/16: 2
2
/17
/17: 5
5
/18
/18: 10
10
/19
/19: 39
39
/20
/20: 35
35
/21
/21: 46
46
/22
/22: 80
80
/23
/23: 140
140
/24
/24: 237
237

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
/31
/31: 1
1
/32
/32: 1
1
/33
/33: 1
1
/34
/34: 3
3
/35
/35: 2
2
/36
/36: 1
1
/37
/37: 6
6
/38
/38: 6
6
/39
/39: 8
8
/40
/40: 9
9
/41
/41: 13
13
/42
/42: 15
15
/43
/43: 16
16
/44
/44: 15
15
/45
/45: 21
21
/46
/46: 38
38
/47
/47: 45
45
/48
/48: 54
54

Geography

Where the space lands

CountryNamePrefixes
HKHong Kong849