Autonomous system
AS43248 ISPER-ASN
Unclassified ARIN
Summary
ISPER
isp residential slovakia internet
ISPER-ASN is operated by ISPER, s.r.o.
What it's used for
- The address space carries residential and business internet access, evidenced by reverse DNS entries such as
0-226-rev.isper.skand the netnameSK-ISPER-20070702. - The AS announces a single IPv4 prefix,
77.247.224.0/21, comprising 2048 addresses, while maintaining 25 observed routing neighbours. - As a Slovak internet service provider, the traffic consists of subscriber eyeballs for residential and small business customers connecting to the internet.
Notable
- The RDAP registrant
ISPER-SK-ADMINSand netnameSK-ISPER-20070702align directly with the AS holder ISPER, s.r.o. - The company was formed by the merger of two firms operating in information technology and internet services.
- The inventory consists of a single contiguous /21 block with no announced IPv6 prefixes.
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 |
|---|---|---|
| Peering.cz | Prague, Czech Republic | 185.0.20.224 |
| Slovak Internet eXchange Bratislava | Bratislava, Slovakia | 192.108.148.230 |
Transit providers
8 upstream, 0 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 2026-10-11, 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 · 2.05K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| SK | Slovakia | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS43248- Registry name
- ISPER-ASN
- Registrant
- MNT-ISPER-SK
- Abuse contact
- ripe@isper.sk
- Registered
- 2007-07-02
- Last changed
- 2023-07-16
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- ISPER
- Scope
- Europe
- Traffic ratio
- Heavy Inbound
- Peering policy
- Open
- IRR as-set
AS-ISPER- Present at
- 1 exchanges
- Website
- https://isper.sk/
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
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS43248
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS43248
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