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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
	212.87.240.0/23	Politechnika Czestochowska
	212.87.244.0/22	Politechnika Czestochowska
	2a01:699::/32	Politechnika Czestochowska

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS13293	Institute of Bioorganic Chemistry Polish Academy of S...	✔	✔
	AS50607	Stowarzyszenie e-Poludnie	✔	✔
	AS196844	Institute of Bioorganic Chemistry Polish Academy of S...	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS196844	Institute of Bioorganic Chemistry Polish Academy of S...	✔	✔
	AS13293	Institute of Bioorganic Chemistry Polish Academy of S...	✔	✔
	AS15373	Politechnika Czestochowska	✔	✔
	AS209860	My Net Michal Bronczkowski	✔	✘
	AS202667	Klasztor OO Paulinow Jasna Gora	✔	✘
	AS6939	Hurricane Electric LLC	✔	✔
	AS44454	Czestochowska Spoldzielnia Mieszkaniowa "Nasza Praca"	✔	✘
	AS50607	Stowarzyszenie e-Poludnie	✔	✔
	AS41056	APUS Piotr Sejfried	✔	✘
	AS200272	x-kom sp. z o.o.	✔	✘
	AS196730	TELSAT.TV Sp. z o.o.	✔	✘
	AS6204	INTERKVM HOST SRL	✔	✔
	AS206241	STOWARZYSZENIE DO SPRAW ROZWOJU SPOLECZENSTWA INFORMA...	✔	✘
	AS49544	i3D.net B.V	✔	✔
	AS202520	SkyPass Solutions Sp. z.o.o.	✔	✔
	AS51465	M3.NET Sp. z o.o. / Fixmap Group	✔	✘
	AS24482	SG.GS	✔	✔
	AS42739	Hawe Telekom S.A. in Restructuring	✔	✘
	AS22356	Durand do Brasil Ltda	✔	✔
	AS53062	ALT | GRUPO BRASIL TECPAR	✔	✘
	AS208041	Rafal Rajba trading as INTERTELL	✔	✔
	AS199524	Gcore S.A.	✔	✔
	AS32590	Valve Corporation	✔	✔
	AS20555	Akademia WIT w Warszawie	✔	✔
	AS35297	Dataline LLC	✔	✔
	AS47927	WIFIWEB s.r.l.	✘	✔
	AS1820	WNET TELECOM USA Corp.	✘	✔
	AS15169	Google LLC	✘	✔

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Downstreams

	ASN	Description	IPv4	IPv6
	AS209860	My Net Michal Bronczkowski	✔	✘
	AS202667	Klasztor OO Paulinow Jasna Gora	✔	✘
	AS44454	Czestochowska Spoldzielnia Mieszkaniowa "Nasza Praca"	✔	✘
	AS41056	APUS Piotr Sejfried	✔	✘
	AS200272	x-kom sp. z o.o.	✔	✘
	AS15373	Politechnika Czestochowska	✔	✔
	AS196730	TELSAT.TV Sp. z o.o.	✔	✘
	AS206241	STOWARZYSZENIE DO SPRAW ROZWOJU SPOLECZENSTWA INFORMA...	✔	✘

aut-num:        AS25084
org:            ORG-PC2-RIPE
as-name:        CZESTMAN-COM-AS
descr:          Non-academic AS dedicated to Metropolitan Area Network
descr:          CzestMAN, Czestochowa University of Technology
descr:          Czestochowa, POLAND
import:         from AS15373 action pref = 170; accept NOT <AS8501+ [AS20965 AS1299 AS5617]>
import:         from AS35628 accept AS35628 OR <^AS35628+ AS5617>
import:         from AS13293 accept ANY
import:         from AS8323 accept ANY
import:         from AS15744 accept ANY
import:         from AS44454 accept AS44454
import:         from AS41056 accept AS41056
import:         from AS202667 accept AS202667
import:         from AS206241 accept AS206241
import:         from AS200272 accept AS200272
import:         from AS24748 accept ANY
import:         from AS29535 accept ANY
import:         from AS6939 accept ANY
import:         from AS209860 accept AS209860
import:         from AS196730 accept AS196730
import:         from AS62047 accept ANY
import:         from AS15169 accept ANY
export:         to AS15373 announce AS25084 AS44454 AS41056 AS202667 AS206241 AS200272 AS209860 AS196730
export:         to AS13293 announce AS25084:AS-Czestochowa-COM-PCWS
export:         to AS35628 announce AS25084:AS-Czestochowa-COM-PIONIER-TP
export:         to AS8323 announce AS25084:AS-PCZ-POPS
export:         to AS15744 announce AS25084:AS-PCZ-POPS
export:         to AS44454 announce ANY
export:         to AS41056 announce ANY
export:         to AS202667 announce ANY
export:         to AS206241 announce ANY
export:         to AS200272 announce ANY
export:         to AS209860 announce ANY
export:         to AS196730 announce ANY
export:         to AS24748 announce AS25084:AS-PCZ-POPS
export:         to AS29535 announce AS25084:AS-PCZ-POPS
export:         to AS6939 announce AS25084:AS-PCZ-POPS
export:         to AS62047 announce AS25084:AS-PCZ-POPS
export:         to AS15169 announce AS25084:AS-PCZ-POPS
remarks:        CzestMAN's COM PEERS
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         PL-CZESTMAN-MNT
created:        2002-07-22T14:48:57Z
last-modified:  2025-03-16T13:05:04Z
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:        ****************************


organisation:   ORG-PC2-RIPE
org-name:       Politechnika Czestochowska
country:        PL
org-type:       LIR
address:        Dummy address for ORG-PC2-RIPE
# Email removed, Log into bgp.tools to see whois emails
abuse-c:        CZ512-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        PL-CZESTMAN-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         PL-CZESTMAN-MNT
created:        2004-04-17T11:46:51Z
last-modified:  2024-01-10T15:10:12Z
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: 2025-12-22T03:24:29Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RIPE	as15373:as-czestochowa-1013	1
RIPE	as5617:as-pl	2043
RIPE	as25084:as-czestochowa-com-pcws	10
RIPE	as25084:as-czestochowa-com-pionier-tp	10
RIPE	as25084:as-pcz-pops	10
RIPE	as15744:as-sask-com	3739
RIPE	as29535:as-tpix	84223
RIPE	as-ipartners	2849
RIPE	as35628:as-czestochowa-com	10
RIPE	as13293:as-czestochowa-com	10
RIPE	as-tpix	83884
RIPE	as196844:as-czestochowa-com	10
RIPE	as41056:as-peers	52