AS47232 ISP Alliance
AS47232 is operated by ISP Alliance and registered with RIPE NCC (CZ) since 2008-05-21.
It announces 10 IPv4 and 6 IPv6 prefixes, 75% of them RPKI valid.
RIPE RIS sees 23 upstream and peer networks and 64 downstream networks next to it.
PeeringDB lists it as a Cable/DSL/ISP network at 2 internet exchanges and 3 facilities. Its peering policy is open.
| Name | ISP Alliance |
|---|---|
| Registry (RIR) | RIPE NCC |
| Country | Czechia (CZ) |
| Delegated on | 2008-05-21 |
| Network type | Cable/DSL/ISP, Regional |
| Peering policy | Open |
| IRR as-set | RIPE::AS-ISPALLIANCE-CZ |
| Prefixes (IPv4 / IPv6) | 10 / 6 |
| RPKI valid | 75% (12 / 16) |
| Upstreams and peers | 23 |
| Downstream networks | 64 |
| Website | ispalliance.cz |
Routing health
- AS47232 announces 10 IPv4 and 6 IPv6 prefixes.
- 12 of 16 announced prefixes are RPKI valid.
- 4 announced prefixes are not covered by a ROA of AS47232 (they may have none, or another network’s).
- 23 upstreams and peers, 64 downstream networks seen.
For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.
Announced prefixes 16
- 5.39.200.0/23
- 46.29.224.0/21
- 78.111.112.0/20
- 94.140.25.0/24
- 148.59.93.0/24
- 185.15.108.0/22
- 185.52.172.0/24
- 185.151.171.0/24
- 193.107.160.0/22
- 195.26.25.0/24
- 2a02:17a0::/29
- 2a02:17a0:d000::/36
- 2a03:2a80::/29
- 2a03:2a82::/31
- 2a04:7bc0::/29
- 2a04:7bc7::/32
Upstreams and peers 23
The networks RIPE RIS sees next to AS47232 in BGP paths, the most visible first.
Peering
Peering policy: Open. Suggested max-prefix limits: 500 IPv4, 100 IPv6. PeeringDB record
| Exchange | Ports | Speed | Route server |
|---|---|---|---|
| NIX.CZ: Public peering VLAN | 2 | 1.6T | Yes |
| Peering.cz | 2 | 400G | Yes |
| Facility | City | Country |
|---|---|---|
| CE Colo Prague | Prague | CZ |
| TTC TELEPORT DC1 | Prague | CZ |
| TTC TELEPORT DC2 | Prague | CZ |
More about AS47232
Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 03:31 UTC. The country is where the AS number was registered, not necessarily where the network operates.