Address space
AS111 BOSTONU-AS
IPv4 prefixes
22
133K addresses
IPv6 prefixes
1
Most common size
/24
IPv4
Flagged
0
Shape
Prefix sizes
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.
Shape
Prefix sizes
Geography
Where the space lands
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 23 |
Inventory
All prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 128.197.0.0/17 | IPv4 | 32,768 | US | |
| 128.197.128.0/21 | IPv4 | 2,048 | US | |
| 128.197.136.0/24 | IPv4 | 256 | US | |
| 128.197.137.0/24 | IPv4 | 256 | US | |
| 128.197.138.0/23 | IPv4 | 512 | US | |
| 128.197.140.0/22 | IPv4 | 1,024 | US | |
| 128.197.144.0/20 | IPv4 | 4,096 | US | |
| 128.197.160.0/19 | IPv4 | 8,192 | US | |
| 128.197.192.0/19 | IPv4 | 8,192 | US | |
| 128.197.224.0/20 | IPv4 | 4,096 | US | |
| 128.197.240.0/21 | IPv4 | 2,048 | US | |
| 128.197.248.0/22 | IPv4 | 1,024 | US | |
| 128.197.252.0/23 | IPv4 | 512 | US | |
| 128.197.254.0/24 | IPv4 | 256 | US | |
| 128.197.255.0/24 | IPv4 | 256 | US | |
| 168.122.0.0/16 | IPv4 | 65,536 | US | |
| 192.5.206.0/23 | IPv4 | 512 | US | |
| 192.12.185.0/24 | IPv4 | 256 | US | |
| 192.12.186.0/23 | IPv4 | 512 | US | |
| 192.12.189.0/24 | IPv4 | 256 | US | |
| 192.12.190.0/23 | IPv4 | 512 | US | |
| 192.54.224.0/24 | IPv4 | 256 | US | |
| 2631:5000::/28 | IPv6 | — | US |