asn.dev

Autonomous system

AS56717 RESAL-AS

Unclassified ARIN

IPv4 addresses 256 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly CZ
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

RESAL

Czechia · AI-generated

business residential czech

The AS handle RESAL-AS is held by OG Soft s.r.o.

What it's used for

  • The address space carries residential and business traffic, evidenced by reverse DNS entries such as 64-7-227-91.dc.resal.cz and the netname RESAL-NET.
  • The network announces 256 IPv4 addresses and 1 IPv6 prefix, with 2 observed routing neighbours, indicating a small-scale access or local business network rather than a transit provider.
  • Traffic from this AS consists of end-user connectivity for the RESAL brand, serving customers in the Ústí nad Orlicí region of Czechia.

Notable

  • The RDAP registrant OG Soft s.r.o. matches the registry holder and the AS name RESAL-AS, confirming consistent ownership.
  • The address inventory is compact, consisting of a single /24 IPv4 block and a single /48 IPv6 prefix, typical for a regional ISP.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS29208Quantcom, a.s.55
AS25512CD-Telematika a.s.36

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 256 addresses IPv6 1 prefixes

CountryNamePrefixes
CZCzechia2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS56717
Registry name
RESAL-AS
Registrant
MNT-R
Abuse contact
abuse@ogsoft.cz
Registered
2011-05-03
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS56717
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS56717

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: 442 networks and 1,771 prefixes, as published 2026-10-15. 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

Cross-check