asn.dev

Address space

AS137689 CHINATELECOM-IOT-JIANGSU-NETWORK IOT Jiangsu network, Chinatelecom, P.R.China.

Unclassified APNIC

IPv4 prefixes 34 43.26K addresses
IPv6 prefixes 25
Most common size /23 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/19
/19: 1
1
/20
/20: 3
3
/21
/21: 4
4
/22
/22: 7
7
/23
/23: 10
10
/24
/24: 9
9

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
/39
/39: 1
1
/40
/40: 5
5
/41
/41: 4
4
/42
/42: 9
9
/43
/43: 2
2
/44
/44: 4
4

Geography

Where the space lands

CountryNamePrefixes
CNChina59