asn.dev

Address space

AS8437 UTA-AS

Unclassified RIPE

IPv4 prefixes 95 550K addresses
IPv6 prefixes 67
Most common size /24 IPv4
Flagged 8

Shape

IPv4 prefix sizes

All IPv4
/16
/16: 1
1
/17
/17: 4
4
/18
/18: 10
10
/19
/19: 13
13
/20
/20: 8
8
/21
/21: 14
14
/22
/22: 13
13
/23
/23: 9
9
/24
/24: 15
15
/25
/25: 1
1
/26
/26: 1
1
/27
/27: 1
1
/28
/28: 1
1
/29
/29: 1
1
/30
/30: 1
1
/31
/31: 1
1
/32
/32: 1
1

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
/33
/33: 1
1
/35
/35: 2
2
/36
/36: 2
2
/37
/37: 2
2
/38
/38: 2
2
/39
/39: 2
2
/40
/40: 2
2
/41
/41: 2
2
/42
/42: 1
1
/43
/43: 2
2
/44
/44: 1
1
/45
/45: 6
6
/46
/46: 4
4
/47
/47: 11
11
/48
/48: 26
26

Geography

Where the space lands

CountryNamePrefixes
ATAustria162

Review

Flagged prefixes

8 of 162
PrefixFamilyAddressesCountryFlags
86.59.21.0/27IPv432ATToo specific
86.59.21.32/30IPv44ATToo specific
86.59.21.36/31IPv42ATToo specific
86.59.21.39/32IPv41ATToo specific
86.59.21.40/29IPv48ATToo specific
86.59.21.48/28IPv416ATToo specific
86.59.21.64/26IPv464ATToo specific
86.59.21.128/25IPv4128ATToo specific

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