Autonomous system profile

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

AS42763

Announcement observedRIPE NCC

CZAJEN FPUH Czajen Krzysztof Czaja · CZAJEN

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

Last active10/28/2026, 02:55:01Snapshot expired

View network topology RDAP registration

ASN: AS42763
Registration country: Poland
Name: CZAJEN FPUH Czajen Krzysztof Czaja
Abbreviation: CZAJEN
Registration date: 4/12/2007, 13:31:23
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
193.33.174.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
193.33.174.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
193.33.175.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
77.87.0.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
77.87.0.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
77.87.1.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
77.87.2.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
77.87.3.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
77.87.4.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
77.87.5.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
77.87.6.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
77.87.7.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
91.193.120.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
91.193.120.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
91.193.121.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
91.193.122.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid
91.193.123.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/27/2026, 16:00:00	✓	×	Currently valid

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

Registration and sources

Organization: CZAJEN FPUH Czajen Krzysztof Czaja
RIR: RIPE NCC
Registration country: Poland
Registration date: 4/12/2007, 13:31:23
Abuse contact: abuse@czajen.pl

Snapshot trend

10/28/2026, 02:55:0117 v40 v66 Upstream · 3 Uncertain

10/13/2026, 04:22:2917 v40 v65 Upstream · 3 Uncertain

10/3/2026, 15:44:0417 v40 v66 Upstream · 3 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 · rir-rdap-asn · iana-rdap-asn-bootstrap