Autonomous system
AS39392 SUPERNETWORK _
Hosting RIPE
Summary
SH.cz
hosting isp czech enterprise
The AS handle SUPERNETWORK _ is held by SH.cz s.r.o.
What it's used for
- The address space carries hosting and web services, evidenced by reverse DNS entries such as
unn-88-86-119-254.superhosting.czandhosting14-254.vas-hosting.cz, alongside netnames likeCZ-SUPERNETWORK-20060214andCZ-WPHOSTING-20180227. - The network announces 31,744 IPv4 addresses across 13 prefixes and 19 IPv6 prefixes, while maintaining 135 observed neighbours. This high neighbour count relative to the address inventory indicates a transit or peering-heavy role rather than a pure access network.
- Traffic from this AS consists of web hosting endpoints, API services, and general internet services provided by SH.cz and its affiliated hosting entities.
Notable
- Registrants for the majority of prefixes are SH.cz s.r.o., matching the AS holder, while smaller blocks are registered to Ecay Networks s.r.o., IT & WP HOST s.r.o., Navmatix s.r.o., and Hostuj to s.r.o., indicating a portfolio of acquired or leased address space.
- The operator formerly known as SuperNetwork rebranded to SH.cz, a change reflected in the registry holder name and the company's public announcement of a brand modernization after 18 years.
- The inventory includes a mix of /19, /20, and /22 blocks, with the largest being 88.86.96.0/19 and 95.168.192.0/19, showing a consolidated but diverse address estate.
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 |
|---|---|---|
| Peering.cz | Prague, Czech Republic | 185.0.20.4 |
Transit providers
12 upstream, 100 downstream and 205 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 13 prefixes · 31.74K addresses IPv6 19 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CZ | Czechia | 32 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS39392- Registry name
- SuperNetwork
- Registrant
- SH.cz s.r.o.
- Abuse contact
- abuse@superhosting.cz
- Registered
- 2006-02-14
- Last changed
- 2022-01-13
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 88% valid · 15 valid, 2 with no ROA
- ROAs
- 18 authorising AS39392
- ASPA
- no ASPA record
- IRR
- 100% registered · 17 of 17 announcements
- Route objects
- 19 naming AS39392
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: 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