AS42763 FPUH Czajen Krzysztof Czaja 🇵🇱 PL

Announcing 17 prefixes, seen at the RIS collectors.

IPv4 prefixes
17
7,168 (28 × /24)
IPv6 prefixes
0
-
Upstreams
3
transit providers observed
Peers
2
settlement-free adjacencies
Downstreams
1
transit customers observed
Customer cone
2
ASes reachable through it

Registry and operator data

AS number
AS42763
Name
FPUH Czajen Krzysztof Czaja
Organisation
Czajen
Country
🇵🇱 PL
RIR
RIPENCC
Allocated
2007-04-12
Network type
Cable/DSL/ISP
Traffic levels
20-50Gbps
Scope
Regional
Peering policy
Open
PeeringDB
net/26394
Exchanges
2
Facilities
1

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

17 valid (100.0%) 0 invalid (0.0%) 0 no ROA (0.0%)

Whois

Fetched from whois.ripe.net

as-block:       AS42383 - AS42953
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2026-06-23T05:12:23Z
last-modified:  2026-06-23T05:12:23Z
source:         RIPE

aut-num:        AS42763
as-name:        CZAJEN
org:            ORG-CZA1-RIPE
import:         from AS8308 accept ANY
export:         to AS8308 announce AS42763
import:         from AS34275 accept ANY
export:         to AS34275 announce AS42763
admin-c:        KC960-RIPE
tech-c:         KC960-RIPE
status:         ASSIGNED
mnt-by:         AP-MEDIA-MNT
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         czajen-mnt
created:        2007-04-12T13:31:23Z
last-modified:  2018-09-04T10:23:26Z
source:         RIPE
sponsoring-org: ORG-ASZO80-RIPE

organisation:   ORG-CZA1-RIPE
org-name:       FPUH Czajen Krzysztof Czaja
country:        PL
reg-nr:         Not Applicable
org-type:       OTHER
descr:          FPUH czaJen Krzysztof Czaja
remarks:        !=====================================================
remarks:        In case of abuse (intrusion attempts, hacking,
remarks:        spamming or other unaccepted behavior) from
remarks:        our address space, please contact only to:
remarks:
remarks:        abuse@czajen.pl
remarks:
remarks:        Mails sent to other mailboxes will be left without action.
remarks:        !=====================================================
address:        ul. 3go Maja 12
address:        Mielec
address:        Poland
phone:          +48 17 5831497
fax-no:         +48 17 5830289
abuse-c:        ACRO228-RIPE
admin-c:        KC960-RIPE
tech-c:         KP82-RIPE
mnt-ref:        AP-MEDIA-MNT
mnt-by:         AP-MEDIA-MNT
mnt-by:         czajen-mnt
created:        2007-03-14T15:04:17Z
last-modified:  2026-05-13T05:59:56Z
source:         RIPE # Filtered

person:         Krzysztof Czaja
address:        ul. 3go Maja 12
address:        Mielec
address:        Poland
phone:          +48 17 5831497
fax-no:         +48 17 5830289
nic-hdl:        KC960-RIPE
mnt-by:         AP-MEDIA-MNT
mnt-by:         czajen-mnt
created:        2007-03-14T15:04:16Z
last-modified:  2018-01-19T21:00:46Z
source:         RIPE # Filtered