asn.dev

Address space

AS721 DNIC-ASBLK-00721-00726

Unclassified ARIN

IPv4 prefixes 5,377 29.69M addresses
IPv6 prefixes 59
Most common size /24 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/11
/11: 1
1
/12
/12: 3
3
/13
/13: 3
3
/14
/14: 9
9
/15
/15: 27
27
/16
/16: 90
90
/17
/17: 50
50
/18
/18: 130
130
/19
/19: 253
253
/20
/20: 473
473
/21
/21: 636
636
/22
/22: 948
948
/23
/23: 1,258
1,258
/24
/24: 1,496
1,496

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
/33
/33: 2
2
/34
/34: 1
1
/35
/35: 3
3
/36
/36: 3
3
/37
/37: 2
2
/38
/38: 4
4
/39
/39: 4
4
/40
/40: 4
4
/41
/41: 4
4
/42
/42: 4
4
/43
/43: 4
4
/44
/44: 4
4
/45
/45: 2
2
/46
/46: 5
5
/47
/47: 7
7
/48
/48: 6
6

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America5,436