Autonomous system
AS8646 CLOUDINFRASTACK
Hosting RIPE NSP
Summary
cloudinfrastack
hosting legacy
cloudinfrastack, s.r.o. (cloudinfrastack) — a small Prague-based hosting and cloud-infrastructure provider, registered at Tachovské náměstí in Praha 3.
What it's used for
- Server hosting out of a single Czech location. It announces one
185.120.68.0/22allocation, registered directly to the company asCZ-CLOUDINFRASTACKCOM-20151007, and the rDNS on it is first-party: routers namedr1.cz1.cloudinfrastack.comandxe-r1-r2.cz1.cloudinfrastack.com, with customer sites resolving to their own domains. - Roughly 1,024 addresses in total, holding a few hundred hosted domains — the scale of a boutique provider, not a large cloud.
Notable
- Self-registered allocation plus first-party router rDNS is what separates a real small host from an address broker wearing the same silhouette. The inventory here is a single contiguous block with a coherent reverse zone.
- Peers widely for its size, taking transit from a couple of upstreams while exchanging traffic at Czech exchanges.
Interesting
- The low AS number is not an early-internet pedigree. The organisation object (May 2015), the
/22allocation (October 2015) and the AS assignment (October 2015) all date from the same year: AS8646 is a reissued number, and the netname even carries its allocation date,20151007.
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 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Peering.cz | Prague, Czech Republic | 185.0.20.213 |
| NIX.CZ - Neutral Internet eXchange for the Czech Republic | Prague, Czech Republic | 91.210.16.196 |
Transit providers
7 upstream, 1 downstream and 8 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 2026-10-30, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 1.02K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CZ | Czechia | 1 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS8646- Registry name
- cloudinfrastack
- Registrant
- Cloudinfrastack
- Abuse contact
- zdenek.janda@cloudevelops.com
- Registered
- 2015-10-13
- Last changed
- 2018-09-04
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- cloudinfrastack
- Also known as
- AS8646
- Network type
- NSP
- Scope
- Europe
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
AS8646- Present at
- 2 exchanges
- Facilities
- 3 facilities
- Website
- https://cloudinfrastack.com
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 · 1 valid, 0 with no ROA
- ROAs
- 1 authorising AS8646
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS8646
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
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: 448 networks and 1,849 prefixes, as published 2026-10-30. 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