AS6855 Slovak Telekom/T-Mobile CZ
AS6855 is operated by Slovak Telekom/T-Mobile CZ and registered with RIPE NCC (SK) since 1996-12-03.
It announces 39 IPv4 and 9 IPv6 prefixes, 75% of them RPKI valid.
RIPE RIS sees 10 upstream and peer networks and 109 downstream networks next to it.
PeeringDB lists it as an NSP network at 3 internet exchanges. Its peering policy is selective.
| Name | Slovak Telekom/T-Mobile CZ |
|---|---|
| Registry (RIR) | RIPE NCC |
| Country | Slovakia (SK) |
| Delegated on | 1996-12-03 |
| Network type | NSP, Europe |
| Peering policy | Selective |
| IRR as-set | RIPE::AS-SLOVAK |
| Prefixes (IPv4 / IPv6) | 39 / 9 |
| RPKI valid | 75% (36 / 48) |
| Upstreams and peers | 10 |
| Downstream networks | 109 |
| Website | telekom.sk |
Routing health
- AS6855 announces 39 IPv4 and 9 IPv6 prefixes.
- 36 of 48 announced prefixes are RPKI valid.
- 12 announced prefixes are not covered by a ROA of AS6855 (they may have none, or another network’s).
- 10 upstreams and peers, 109 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 48
- 78.98.0.0/15
- 84.47.0.0/17
- 85.239.68.0/24
- 85.239.69.0/24
- 85.239.80.0/23
- 85.239.82.0/23
- 85.239.84.0/22
- 85.248.31.0/24
- 85.248.74.0/24
- 87.197.0.0/16
- 91.127.0.0/16
- 91.195.106.0/24
- 91.195.107.0/24
- 91.245.16.0/23
- 95.102.0.0/15
- 178.40.0.0/15
- 185.19.72.0/22
- 185.58.102.0/24
- 185.58.103.0/24
- 193.84.7.0/24
- 193.84.96.0/24
- 193.84.97.0/24
- 193.84.98.0/23
- 193.84.150.0/24
- 193.84.245.0/24
- 193.200.143.0/24
- 193.201.110.0/24
- 193.228.234.0/24
- 194.48.241.0/24
- 194.50.215.0/24
- 194.154.224.0/19
- 194.169.224.0/24
- 195.91.0.0/17
- 195.146.128.0/19
- 195.146.130.0/24
- 195.216.240.0/24
- 212.5.192.0/19
- 213.81.128.0/17
- 213.160.160.0/19
- 2a00:6bc0::/40
- 2a00:12a8::/29
- 2a01:5f7::/32
- 2001:67c:1bc4::/48
- 2001:67c:2cc0::/48
- 2001:67c:2f9c::/48
- 2001:67c:16c0::/48
- 2001:67c:1314::/48
- 2001:678:c14::/48
Upstreams and peers 10
The networks RIPE RIS sees next to AS6855 in BGP paths, the most visible first.
Peering
Peering policy: Selective. Suggested max-prefix limits: 1,000 IPv4, 300 IPv6. PeeringDB record
| Exchange | Ports | Speed | Route server |
|---|---|---|---|
| NIX.CZ: Public peering VLAN | 2 | 600G | No |
| NIX.SK | 1 | 20G | No |
| SIX.SK | 2 | 400G | No |
More about AS6855
Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-15 04:30 UTC. The country is where the AS number was registered, not necessarily where the network operates.