asn.dev

Address space

AS28186 ITS TELECOMUNICACOES LTDA

Unclassified ARIN NSP

IPv4 prefixes 163 69.63K addresses
IPv6 prefixes 147
Most common size /24 IPv4
Flagged 60

Shape

IPv4 prefix sizes

All IPv4
/20
/20: 2
2
/21
/21: 7
7
/22
/22: 17
17
/23
/23: 33
33
/24
/24: 44
44
/25
/25: 5
5
/26
/26: 7
7
/27
/27: 7
7
/28
/28: 7
7
/29
/29: 7
7
/30
/30: 7
7
/31
/31: 8
8
/32
/32: 12
12

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: 2
2
/35
/35: 2
2
/36
/36: 2
2
/37
/37: 1
1
/38
/38: 2
2
/39
/39: 4
4
/40
/40: 4
4
/41
/41: 3
3
/42
/42: 2
2
/43
/43: 3
3
/44
/44: 6
6
/45
/45: 11
11
/46
/46: 28
28
/47
/47: 45
45
/48
/48: 30
30

Geography

Where the space lands

CountryNamePrefixes
BRBrazil310

Review

Flagged prefixes

60 of 310
PrefixFamilyAddressesCountryFlags
187.44.128.0/31IPv42BRToo specific
187.44.128.2/31IPv42BRToo specific
187.44.128.4/30IPv44BRToo specific
187.44.128.8/29IPv48BRToo specific
187.44.128.16/28IPv416BRToo specific
187.44.128.32/27IPv432BRToo specific
187.44.128.64/26IPv464BRToo specific
187.44.128.128/25IPv4128BRToo specific
187.44.212.0/26IPv464BRToo specific
187.44.212.64/31IPv42BRToo specific
187.44.212.66/32IPv41BRToo specific
187.44.212.67/32IPv41BRToo specific
187.44.212.68/30IPv44BRToo specific
187.44.212.72/29IPv48BRToo specific
187.44.212.80/28IPv416BRToo specific
187.44.212.96/27IPv432BRToo specific
187.44.212.128/25IPv4128BRToo specific
189.89.129.0/25IPv4128BRToo specific
189.89.129.128/29IPv48BRToo specific
189.89.129.136/31IPv42BRToo specific
189.89.129.138/32IPv41BRToo specific
189.89.129.139/32IPv41BRToo specific
189.89.129.140/30IPv44BRToo specific
189.89.129.144/28IPv416BRToo specific
189.89.129.160/27IPv432BRToo specific

The first 25. Every flag also shows in the IPv4 and IPv6 lists.

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