Autonomous system
AS39904 MERIT-AS MERIT GROUP a.s.
Unclassified RIPE Cable/DSL/ISP
Summary
Merit Group
isp residential czech cable
MERIT-AS is operated by Merit Group a.s.
What it's used for
- The address space carries residential and business internet access, evidenced by netnames such as
CZ-MERIT-GROUP-20110201,MERIT-CZ-PI, andMERIT-CZ-PI-MAI. - The AS announces 3584 IPv4 addresses across 5 prefixes and 16 IPv6 prefixes, with 27 observed neighbours, indicating a regional access provider role.
- Traffic consists of subscriber eyeballs for cable and DSL services in the Czech Republic, specifically in the Olomouc region.
Notable
- All registrants for the announced prefixes are listed as
MERIT GROUP HostmasterorMERIT GROUP a.s, matching the AS holder. - Merit Group operates as a cable and DSL ISP in Europe, with a primary office in Olomouc, Czech Republic.
- The inventory consists of five distinct IPv4 blocks, including a /22 and two /24s, alongside a large contiguous IPv6 allocation under
2a02:7a00::/47.
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 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| NIX.CZ - Neutral Internet eXchange for the Czech Republic | Prague, Czech Republic | 91.210.16.38 |
Transit providers
7 upstream, 4 downstream and 17 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 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 5 prefixes · 3.58K addresses IPv6 16 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CZ | Czechia | 21 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS39904- Registry name
- MERIT-AS
- Registrant
- MERIT-MNT
- Abuse contact
- abuse@merit.cz
- Registered
- 2006-05-12
- Last changed
- 2025-06-26
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- MERIT GROUP a.s.
- Also known as
- MeritNET
- Network type
- Cable/DSL/ISP
- Scope
- Europe
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
AS-MERIT-NIX- Present at
- 1 exchanges
- Facilities
- 3 facilities
- Website
- http://www.meritgroup.cz
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 4 authorising AS39904
- ASPA
- 5 declared providers
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 4 naming AS39904
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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