asn.dev

Address space

AS1968 UMASSNET-AS1968 - UMASSNET

Unclassified ARIN

IPv4 prefixes 24 156K addresses
IPv6 prefixes 28
Most common size /23 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/16
/16: 1
1
/18
/18: 2
2
/19
/19: 4
4
/20
/20: 4
4
/21
/21: 1
1
/22
/22: 2
2
/23
/23: 7
7
/24
/24: 3
3

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
/30
/30: 1
1
/31
/31: 1
1
/32
/32: 1
1
/33
/33: 1
1
/35
/35: 2
2
/36
/36: 2
2
/37
/37: 1
1
/38
/38: 3
3
/39
/39: 3
3
/40
/40: 3
3
/41
/41: 2
2
/42
/42: 2
2
/43
/43: 2
2
/44
/44: 2
2
/45
/45: 2
2

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America52