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If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	77.87.0.0/24	FPUH Czajen Krzysztof Czaja
	77.87.0.0/21	FPUH Czajen Krzysztof Czaja
	77.87.1.0/24	FPUH Czajen Krzysztof Czaja
	77.87.2.0/24	FPUH Czajen Krzysztof Czaja
	77.87.3.0/24	FPUH Czajen Krzysztof Czaja
	77.87.4.0/24	FPUH Czajen Krzysztof Czaja
	77.87.5.0/24	FPUH Czajen Krzysztof Czaja
	77.87.6.0/24	FPUH Czajen Krzysztof Czaja
	77.87.7.0/24	FPUH Czajen Krzysztof Czaja
	91.193.120.0/24	FPUH Czajen Krzysztof Czaja
	91.193.120.0/22	FPUH Czajen Krzysztof Czaja
	91.193.121.0/24	FPUH Czajen Krzysztof Czaja
	91.193.122.0/24	FPUH Czajen Krzysztof Czaja
	91.193.123.0/24	FPUH Czajen Krzysztof Czaja
	193.33.174.0/24	FPUH Czajen Krzysztof Czaja
	193.33.174.0/23	FPUH Czajen Krzysztof Czaja
	193.33.175.0/24	FPUH Czajen Krzysztof Czaja

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS12912	T-Mobile Polska S.A.	✔	✘
	AS198424	HLG Internet Sp. z o.o.	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS12912	T-Mobile Polska S.A.	✔	✘
	AS6939	Hurricane Electric LLC	✔	✘
	AS43326	Fundacja Nasza Wizja	✔	✘
	AS137409	GSL Networks Pty LTD	✔	✘
	AS198424	HLG Internet Sp. z o.o.	✔	✘
	AS24115	Equinix IX	✔	✘
	AS49544	i3D.net B.V	✔	✘
	AS42739	Hawe Telekom S.A. in Restructuring	✔	✘
	AS24482	SG.GS	✔	✘
	AS52110	IPC ROMAN ROMANOWSKI	✔	✘
	AS51465	M3.NET Sp. z o.o. / Fixmap Group	✔	✘
	AS32590	Valve Corporation	✔	✘
	AS199524	Gcore S.A.	✔	✘
	AS36236	NetActuate, Inc	✔	✘
	AS49559	A-Systems Sp. z o.o.	✔	✘
	AS59711	HZ Hosting Ltd	✔	✘
	AS15169	Google LLC	✔	✘
	AS35320	Eurotranstelecom Ltd	✔	✘
	AS8664	University of Warsaw	✔	✘

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Downstreams

	ASN	Description	IPv4	IPv6
	AS43326	Fundacja Nasza Wizja	✔	✘

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:        DUMY-RIPE
tech-c:         DUMY-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
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************


organisation:   ORG-CZA1-RIPE
org-name:       FPUH Czajen Krzysztof Czaja
country:        PL
org-type:       OTHER
address:        Dummy address for ORG-CZA1-RIPE
# Email removed, Log into bgp.tools to see whois emails
abuse-c:        ACRO228-RIPE
mnt-ref:        AP-MEDIA-MNT
mnt-by:         AP-MEDIA-MNT
mnt-by:         czajen-mnt
created:        2007-03-14T15:04:17Z
last-modified:  2022-12-01T16:21:34Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************

Last Update: 2025-12-22T03:24:38Z UTC

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Member of the following AS-SETs

-	Member
RIPE	as-ipartners
RIPE	as29535:as-mix2
LEVEL3	as-lumen-customers-asns
RIPE	as42763:as-czajen-transit
RIPE	as-cpop
RIPE	as8246:as-tpnet
RIPE	as-tpix
RIPE	as21021:as-multimedia-tpsa-wa-wa
RIPE	as21021:as-multimedia-d-cix
RIPE	as-kike-local
RIPE	as-acckrk
RIPE	as-set-52195
RIPE	as21021:as-multimedia-level3
RIPE	as5617:as-world-transit
RIPE	as-multimedia
RIPE	as8308:as-cust-transit
RIPE	as30778:as-customers
RIPE	as24748:as-thinx
RIPE	as24748:as-ix
RIPE	as29535:as-tpix
RIPE	as-hlg
RIPE	as-ghnet
RIPE	as-plix-connected