Address space
AS400773 BOSTON-FIBER
IPv4 prefixes
2
768 addresses
IPv6 prefixes
17
Most common size
/23
IPv4
Flagged
17
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 | 19 |
Review
Flagged prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 2602:ff65:e27::/60 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:10::/64 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:11::/64 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:12::/63 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:14::/62 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:18::/61 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:20::/59 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:40::/58 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:80::/57 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:100::/56 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:200::/55 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:400::/54 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:800::/53 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:1000::/52 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:2000::/51 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:4000::/50 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:8000::/49 | IPv6 | — | US | Too 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
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 23.157.24.0/23 | IPv4 | 512 | US | |
| 209.135.164.0/24 | IPv4 | 256 | US | |
| 2602:ff65:e27::/60 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:10::/64 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:11::/64 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:12::/63 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:14::/62 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:18::/61 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:20::/59 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:40::/58 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:80::/57 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:100::/56 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:200::/55 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:400::/54 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:800::/53 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:1000::/52 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:2000::/51 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:4000::/50 | IPv6 | — | US | Too specific |
| 2602:ff65:e27:8000::/49 | IPv6 | — | US | Too specific |