Autonomous system
AS6855 SK-TELEKOM Slovak Telekom T-Mobile CZ
Mobile RIPE
Summary
Slovak Telekom
isp mobile eyeball backbone
Slovak Telekom (SK-TELEKOM) is Slovakia's incumbent telecom operator, providing fixed broadband, TV, and mobile service under the Telekom brand. It is part of the Deutsche Telekom group.
What it's used for
- Mobile data plus fixed broadband, IPTV, and enterprise connectivity across Slovakia.
Notable
- The national incumbent and a major "eyeball" network — addresses here are mostly consumer mobile devices and home connections.
- Its mobile network was historically marketed as T-Mobile Slovensko before consolidating under the Telekom brand.
Interesting
- Part of Deutsche Telekom's Central European footprint, sharing the magenta Telekom identity used across the group.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 2 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| NIX.CZ - Neutral Internet eXchange for the Czech Republic | Prague, Czech Republic | 91.210.16.23 |
| Slovak Internet eXchange Bratislava | Bratislava, Slovakia | 192.108.148.30 |
Transit providers
7 upstream, 108 downstream and 168 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 38 prefixes · 663K addresses IPv6 9 prefixes
| Country | Name | Prefixes |
|---|---|---|
| SK | Slovakia | 47 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS6855- Registry name
- SK-TELEKOM
- Registrant
- Slovak Telekom, a.s.
- Abuse contact
- abuse@telekom.sk
- Registered
- 1970-01-01
- Last changed
- 2020-11-02
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 76% valid · 35 valid, 11 with no ROA
- ROAs
- 44 authorising AS6855
- ASPA
- no ASPA record
- IRR
- 100% registered · 46 of 46 announcements
- Route objects
- 66 naming AS6855
Reputation
Classification and threat
Mobile Cellular carrier. Addresses are shared by many handsets via CGNAT.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,773 prefixes, as published 2026-10-13. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere