asn.dev

Address space

AS17897 CHINATELECOM-HLJ-AS-AP asn for Heilongjiang Provincial Net of CT

Unclassified ARIN

IPv4 prefixes 29 151K addresses
IPv6 prefixes 9
Most common size /24 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/16
/16: 1
1
/17
/17: 1
1
/18
/18: 1
1
/19
/19: 1
1
/20
/20: 2
2
/21
/21: 5
5
/22
/22: 5
5
/23
/23: 6
6
/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
/37
/37: 3
3
/40
/40: 2
2
/48
/48: 4
4

Geography

Where the space lands

CountryNamePrefixes
CNChina38