asn.dev

Address space

AS3112 OARNET-AS-1

IPv4 prefixes 22 9.76K addresses
IPv6 prefixes 0
Most common size /24 IPv4
Flagged 7

Shape

Prefix sizes

IPv4
/21
/21: 2
2
/22
/22: 2
2
/23
/23: 2
2
/24
/24: 9
9
/25
/25: 1
1
/26
/26: 1
1
/27
/27: 2
2
/28
/28: 1
1
/29
/29: 1
1
/30
/30: 1
1

How this network carves its IPv4 space. 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.

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America22

Review

Flagged prefixes

7 of 22
PrefixFamilyAddressesCountryFlags
131.187.185.0/27IPv432USToo specific
192.148.246.0/29IPv48USToo specific
192.148.246.8/30IPv44USToo specific
192.148.246.16/28IPv416USToo specific
192.148.246.32/27IPv432USToo specific
192.148.246.64/26IPv464USToo specific
192.148.246.128/25IPv4128USToo specific

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

Inventory

All prefixes

22 total
PrefixFamilyAddressesCountryFlags
131.187.185.0/27IPv432USToo specific
157.134.240.0/21IPv42,048US
192.88.191.0/24IPv4256US
192.88.192.0/24IPv4256US
192.148.242.0/24IPv4256US
192.148.246.0/29IPv48USToo specific
192.148.246.8/30IPv44USToo specific
192.148.246.16/28IPv416USToo specific
192.148.246.32/27IPv432USToo specific
192.148.246.64/26IPv464USToo specific
192.148.246.128/25IPv4128USToo specific
198.30.88.0/23IPv4512US
199.18.14.0/24IPv4256US
199.18.53.0/24IPv4256US
199.18.139.0/24IPv4256US
199.18.242.0/24IPv4256US
205.133.216.0/21IPv42,048US
206.21.56.0/24IPv4256US
206.21.57.0/24IPv4256US
206.21.58.0/23IPv4512US
206.21.60.0/22IPv41,024US
206.244.164.0/22IPv41,024US