Network report
Who holds an IP address, prefix or AS number, how it is routed (origin AS, RPKI, IRR), its reverse DNS, blocklist listings and PeeringDB record, with what to fix first.
Checking routing, RPKI, reverse DNS, blocklists and the registry. This usually takes 3 to 10 seconds.
Warning: AS47232 (ISPAlliance ISP Alliance a.s.) announces 10 IPv4 and 6 IPv6 prefixes. 2 warnings
| AS page | AS47232 |
|---|---|
| Holder | ISPAlliance ISP Alliance a.s. |
| Allocation | RIPE NCC, Czechia (CZ), allocated 2008-05-21 |
| Prefixes (IPv4 / IPv6) | 10 / 6 |
| RPKI valid | 75% (12 / 16) |
| Upstreams and peers | 23 |
| Peering policy | Open |
What to fix
-
Warning
4 of 16 announced prefixes have no ROA (RPKI not found): 94.140.25.0/24, 148.59.93.0/24, 193.107.160.0/22, 195.26.25.0/24.
Without a ROA, networks cannot tell your routes from a hijack.
Fix: Create a ROA for each at your RIR portal, with origin AS47232 and a max length equal to the prefix length:
94.140.25.0/24 AS47232 max-length /24 148.59.93.0/24 AS47232 max-length /24 193.107.160.0/22 AS47232 max-length /22 195.26.25.0/24 AS47232 max-length /24
-
Warning
No public NOC, policy or technical contact.
Other networks use these addresses to set up peering and to reach you during an incident.
Fix: Add a role contact (for example noc@ or peering@ an address you monitor) with visibility Public.
Checks
Routing and RPKI 4 of 16 announced prefixes have no ROA (RPKI not found): 94.140.25.0/24, 148.59.93.0/24, 193.107.160.0/22, 195.26.25.0/24.
- Pass: AS47232 announces 10 IPv4 and 6 IPv6 prefixes.
- Warning: 4 of 16 announced prefixes have no ROA (RPKI not found): 94.140.25.0/24, 148.59.93.0/24, 193.107.160.0/22, 195.26.25.0/24.
- Info: 12 of 16 announced prefixes are RPKI valid.
- Pass: Every announced prefix has an IRR route object.
- Info: 23 upstreams and peers, 64 downstream networks seen.
| Holder | ISPAlliance ISP Alliance a.s. |
|---|---|
| IPv4 prefixes | 10 |
| IPv6 prefixes | 6 |
| RPKI | 12 valid · 4 not found |
| Downstream networks | 64 |
| Prefix | RPKI |
|---|---|
| 94.140.25.0/24 | No ROA |
| 148.59.93.0/24 | No ROA |
| 193.107.160.0/22 | No ROA |
| 195.26.25.0/24 | No ROA |
Source: RIPEstat (RIPE NCC RIS, Routinator, IRR); AS names: Team Cymru
Open in ASN & BGP prefix lookupRegistration Found at rdap.db.ripe.net.
- Pass: Found at rdap.db.ripe.net.
| Name | ISPAlliance |
|---|---|
| Handle | AS47232 |
| Range | AS47232 |
| Status | active |
| Registered | 2008-05-21T13:49:01Z |
| Last changed | 2026-05-29T05:07:46Z |
| Abuse contact | abuse@ispalliance.cz |
| Registry (RIR) | RIPE NCC |
|---|---|
| Country | Czechia (CZ) |
| Delegated on | 2008-05-21 |
| Status | Allocated |
| Delegated range | AS47232 |
Source: RIR delegation data, updated daily. The country is where the range was registered, not necessarily where it is used.
| Role | Name | |
|---|---|---|
| registrant | MNT-GRAPESC | |
| registrant | ISP Alliance a.s. | |
| registrant | RIPE-NCC-END-MNT | |
| abuse | ISPalliance Abuse | abuse@ispalliance.cz |
Source: https://rdap.db.ripe.net/autnum/47232. Registration data from rdap.db.ripe.net, shown under its terms of use (terms): not for marketing or bulk collection. Personal contacts in this registry are not shown.
Open in WHOIS / RDAP lookupPeeringDB No public NOC, policy or technical contact.
- Pass: AS47232 is in PeeringDB as ISP Alliance.
- Info: Peering policy: Open.
- Info: Present at 2 internet exchanges with 4 ports (2T in total).
- Warning: No public NOC, policy or technical contact.
- Info: The record was last updated 2023-02-14.
| Network | ISP Alliance (ISPA) |
|---|---|
| AS number | AS47232 |
| Type | Cable/DSL/ISP, Regional |
| Website | http://www.ispalliance.cz |
| IRR as-set | RIPE::AS-ISPALLIANCE-CZ |
| Prefixes (IPv4 / IPv6) | 500 / 100 |
| Traffic | 500-1000Gbps, Mostly Inbound |
| Peering policy | Open |
| Locations | Not Required |
| Ratio required | No |
| Contracts | Not Required |
| Last updated | 2023-02-14 |
Source: PeeringDB. Results are cached for an hour.
Open in PeeringDB lookup