ISP Alliance a.s.
AS210712 is ISP Alliance a.s. (ispalliance.cz). It announces 14,336 IPv4 addresses in 7 prefixes, and 1 IPv6 prefixes.
Czechia· RIPE· allocated 2021-09-24· isp
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Czechia14,336 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- GRAPESC-ISP
- name
- ISP Alliance a.s.
- org
- ORG-GSa22-RIPE
- org name
- ISP Alliance a.s.
- org address
- Kukanova 2262, 43003, Chomutov, CZECH REPUBLIC
- org country
- CZ
- country
- CZ
- source
- ripe
- status
- ASSIGNED
- created
- 2021-09-24
- updated
- 2025-09-01
- remarks
- This ASN is used for residential broadband ISP services.
- maintainer
- RIPE-NCC-END-MNT|MNT-GRAPESC
- abuse name
- ISPalliance Abuse
- abuse email
- abuse@ispalliance.cz
- abuse kind
- role
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- VPN IP467best_proxy_switcher, watchguard, cisco3.26%
- anyip, geonix, proxyseller1.59%
- None here
- dataimpulse, floppydata0.03%
- None here
- None here
- Hosting IP9,98469.64%
- None here
- None here
- None here
- SSH IP3352.34%
- SMTP IP610.43%
- 0.36%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 91.192.32.0/22 | Czechia | valid | 17 | 2026-10-02 |
| 93.91.144.0/20 | Czechia | valid | 17 | 2026-10-02 |
| 109.235.0.0/21 | Czechia | valid | 17 | 2026-10-02 |
| 185.40.80.0/22 | Czechia | valid | 17 | 2026-10-02 |
| 185.94.4.0/22 | Czechia | valid | 17 | 2026-10-02 |
| 213.109.172.0/22 | Czechia | valid | 17 | 2026-10-02 |
| 217.75.208.0/20 | Czechia | valid | 17 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2a02:17a0::/30 | Czechia | valid | 20 | 2026-10-02 |
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