Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS43542

Announcement observedRIPE NCC

OptoNet Communication, spol. s.r.o. · OptoNet-AS

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/3/2026, 19:00:48Snapshot expired

View network topology RDAP registration

ASN: AS43542
Registration country: Czechia
Name: OptoNet Communication, spol. s.r.o.
Abbreviation: OptoNet-AS
Registration date: 8/20/2007, 08:25:37
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
78.156.128.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: OptoNet Communication, spol. s.r.o.
RIR: RIPE NCC
Registration country: Czechia
Registration date: 8/20/2007, 08:25:37
Abuse contact: abuse@optonet.cz

Snapshot trend

10/3/2026, 19:00:481 v41 v615 Upstream · 9 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn