asn.dev

Address space

AS19108 SUDDENLINK-COMMUNICATIONS

Unclassified ARIN

IPv4 prefixes 885 2.84M addresses
IPv6 prefixes 70
Most common size /22 IPv4
Flagged 3

Shape

IPv4 prefix sizes

All IPv4
/16
/16: 4
4
/17
/17: 10
10
/18
/18: 31
31
/19
/19: 80
80
/20
/20: 113
113
/21
/21: 157
157
/22
/22: 179
179
/23
/23: 156
156
/24
/24: 152
152
/25
/25: 1
1
/26
/26: 2
2

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
/32
/32: 1
1
/35
/35: 2
2
/36
/36: 4
4
/37
/37: 4
4
/38
/38: 4
4
/39
/39: 3
3
/40
/40: 5
5
/41
/41: 5
5
/42
/42: 5
5
/43
/43: 5
5
/44
/44: 8
8
/45
/45: 5
5
/46
/46: 5
5
/47
/47: 6
6
/48
/48: 8
8

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America955

Review

Flagged prefixes

3 of 955
PrefixFamilyAddressesCountryFlags
66.76.193.0/26IPv464USToo specific
66.76.193.64/26IPv464USToo specific
66.76.193.128/25IPv4128USToo specific

A flag is an observation, not an accusation. Very large and very specific prefixes are both legitimate in the right context.