Autonomous system
AS28725 CETIN-AS
Residential RIPE
IPv4 addresses
134K
7 prefixes
IPv6 prefixes
2
counted as prefixes, not addresses
Countries
1
mostly CZ
Flagged prefixes
0
none
Summary
CETIN (Czechia)
isp residential eyeball dsl fiber
CETIN a.s. (CETIN) — the Czech wholesale fixed and mobile access network,
spun out of O2 Czech Republic in 2015.
What it's used for
- The physical DSL/fibre access network that carries home broadband for O2 and other Czech retail ISPs.
Notable
- An "eyeball" network: the addresses here are Czech home internet connections, even though CETIN sells wholesale to retail providers rather than direct to consumers.
- Carrier-of-carriers model — one of the largest access networks in the country by subscriber footprint.
Interesting
- CETIN (Czech Telecommunication Infrastructure) was carved out of O2 so the passive/access infrastructure could be operated and regulated separately from the retail brand; it is part of the PPF 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.
Address space
Summary
| Country | Name | Prefixes |
|---|---|---|
| CZ | Czechia | 9 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS28725- Registry name
- CETIN-AS
- Registrant
- CETIN-MNT
- Abuse contact
- abuse@cetin.cz
- Registered
- 2003-02-10
- Last changed
- 2020-03-24
- Status
- active
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
No IC3 indicators Nothing from the FBI IC3 feed.
Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere