Address space
AS50398 FASTCOMMUNICATIONS
IPv4 prefixes
2
3.07K addresses
IPv6 prefixes
1
Most common size
/21
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 |
|---|---|---|
| CZ | Czechia | 3 |
Inventory
All prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 91.219.44.0/22 | IPv4 | 1,024 | CZ | |
| 91.245.0.0/21 | IPv4 | 2,048 | CZ | |
| 2001:67c:1260::/48 | IPv6 | — | CZ |