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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
	37.72.120.0/21	Spoldzielnia Telekomunikacyjna OST
	62.133.128.0/19	Spoldzielnia Telekomunikacyjna OST
	168.222.232.0/22	Spoldzielnia Telekomunikacyjna OST
	185.13.184.0/22	Spoldzielnia Telekomunikacyjna OST
	2a02:22e0::/32	Spoldzielnia Telekomunikacyjna OST

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS5617	Orange Polska Spolka Akcyjna	✔	✔
	AS20804	Exatel S.A.	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS5617	Orange Polska Spolka Akcyjna	✔	✔
	AS20804	Exatel S.A.	✔	✔
	AS6939	Hurricane Electric LLC	✔	✔
	AS200609	CHDE Polska Spolka Akcyjna	✔	✘
	AS31604	Intertele S.A.	✔	✘
	AS31381	Wyzsza Szkola Informatyki i Zarzadzania	✔	✘
	AS3303	Swisscom (Schweiz) AG	✔	✘
	AS14840	BR.DIGITAL	✔	✔
	AS6204	INTERKVM HOST SRL	✔	✘
	AS49544	i3D.net B.V	✔	✔
	AS22356	Durand do Brasil Ltda	✔	✔
	AS9498	Bharti Airtel Ltd.	✔	✘
	AS42739	Hawe Telekom S.A. in Restructuring	✔	✘
	AS53062	ALT | GRUPO BRASIL TECPAR	✔	✘
	AS51465	M3.NET Sp. z o.o. / Fixmap Group	✔	✘
	AS1820	WNET TELECOM USA Corp.	✔	✔
	AS202520	SkyPass Solutions Sp. z.o.o.	✔	✘
	AS56630	Melbikomas UAB	✔	✘
	AS208041	Rafal Rajba trading as INTERTELL	✔	✔
	AS24482	SG.GS	✔	✔
	AS32590	Valve Corporation	✔	✘
	AS36236	NetActuate, Inc	✔	✔
	AS15169	Google LLC	✔	✘
	AS20555	Akademia WIT w Warszawie	✔	✘
	AS35297	Dataline LLC	✔	✘
	AS42981	Pawel Kosiorowski trading as RES.PL Kosiorowski, Wisn...	✔	✘
	AS20473	The Constant Company, LLC	✘	✔

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Downstreams

	ASN	Description	IPv4	IPv6
	AS31604	Intertele S.A.	✔	✘
	AS31381	Wyzsza Szkola Informatyki i Zarzadzania	✔	✘
	AS42981	Pawel Kosiorowski trading as RES.PL Kosiorowski, Wisn...	✔	✘
	AS200609	CHDE Polska Spolka Akcyjna	✔	✘

aut-num:        AS38987
as-name:        OST-ASN
org:            ORG-OSTw2-RIPE
descr:          Spoldzielnia Telekomuniacyjna OST
descr:          ul. Kosciuszki 8
descr:          36-020 Tyczyn, Poland
import:         from AS20804 accept ANY
import:         from AS31381 accept AS31381
import:         from AS31604 accept AS31604
import:         from AS42981 accept AS42981
import:         from AS48850 accept ANY
import:         from AS61027 accept ANY
import:         from AS62047 accept ANY
import:         from AS201054 accept ANY
import:         from AS29535 accept ANY
import:         from AS21395 accept ANY
import:         from AS8075 accept ANY
import:         from AS16509 accept ANY
import:         from AS13335 accept ANY
import:         from AS20940 accept ANY
import:         from AS6939 accept ANY
import:         from AS15133 accept ANY
import:         from AS26506 accept ANY
export:         to AS20804 announce ANY
export:         to AS31381 announce ANY
export:         to AS31604 announce ANY
export:         to AS42981 announce ANY
export:         to AS48850 announce AS-OST
export:         to AS61027 announce AS-OST
export:         to AS62047 announce AS-OST
export:         to AS201054 announce AS-OST
export:         to AS29535 announce AS-OST
export:         to AS21395 announce AS-OST
export:         to AS8075 announce AS-OST
export:         to AS16509 announce AS-OST
export:         to AS13335 announce AS38987
export:         to AS20940 announce AS-OST
export:         to AS6939 announce AS-OST
export:         to AS15133 announce AS-OST
export:         to AS26506 announce AS-OST
remarks:        -----------------------------------------------------------------
remarks:        BGP COMMUNITY SUPPORT FOR AS38987 BGP PEERS:
remarks:        Community Action
remarks:        --------- -------------------------------------------------
remarks:        38987:80 Set local preference path to 80
remarks:        38987:120 Set local preference path to 120
remarks:        Default local preference is set to 100
remarks:        BGP COMMUNITIES APPLIED AT INGRESS
remarks:        (to determine entry point of route)
remarks:        Community Entry point of route
remarks:        --------- -------------------------------------------------
remarks:        38987:210 EPIX Katowice (AS62047)
remarks:        38987:220 EWSCHOD-AS (AS61027)
remarks:        38987:230 ORANGE PL (AS5617)
remarks:        38987:270 EXATEL (AS20804)
remarks:        38987:310 EPIX Warszawa (AS48850)
remarks:        38987:330 TPIX ORANGE PL(AS29535)
remarks:        38987:340 MICROSOFT Cache (AS8075 via TPIX ORANGE PL)
remarks:        38987:350 AMAZON (AS16509 via TPIX ORANGE PL)
remarks:        38987:360 CLOUDFLARE (AS13335 via TPIX ORANGE PL or EPIX Warszawa)
remarks:        38987:370 AKAMAI (AS20940 via EPIX KATOWICE)
remarks:        38987:380 AKAMAI (AS20940 via EPIX WARSZAWA)
remarks:        38987:390 HE (AS6939 via TPIX WARSZAWA)
remarks:        38987:400 META (AS32934 via TPIX PL)
remarks:        38987:410 META (AS32934 via EPIX WARSZAWA PL)
remarks:        38987:420 META (AS63293 via EPIX KATOWICE PL)
remarks:        -----------------------------------------------------------------
remarks:        BGP COMMUNITY SUPPORT FOR AS38987 BGP CUSTOMERS:
remarks:        Community Action
remarks:        ----------------------------------------------------------
remarks:        38987:90 Do not advertise to BGP uplinks
remarks:        38987:98 Do not advertise to BGP peers
remarks:        38987:99 Do not advertise anywhere
remarks:        38987:1100 Do not advertise to EPIX Katowice (AS62047)
remarks:        38987:110x Prepend x times [x=1..5] with AS38987 to EPIX Katowice (AS62047)
remarks:        38987:2100 Do not advertise to EWSCHOD-AS (AS61027)
remarks:        38987:210x Prepend x times [x=1..5] with AS38987 to EWSCHOD-AS (AS61027)
remarks:        38987:3100 Do not advertise to ORANGE PL (AS5617)
remarks:        38987:310x Prepend x times [x=1..5] with AS38987 to ORANGE PL (AS5617)
remarks:        38987:9100 Do not advertise to OST Google Global Cache
remarks:        38987:910x Prepend x times [x=1..5] with AS38987 to OST Google Global Cache
remarks:        38987:10100 Do not advertise to EXATEL (AS20804)
remarks:        38987:1010x Prepend x times [x=1..5] with AS38987 to EXATEL (AS20804)
remarks:        38987:10130 Do not advertise to EPIX Warszawa (AS48850)
remarks:        38987:1013x Prepend x times [x=1..5] with AS38987 to EPIX Warszawa (AS48850)
remarks:        38987:10240 Do not advertise to TPIX (AS29535)
remarks:        38987:1024x Prepend x times [x=1..5] with AS38987 to TPIX (AS29535)
remarks:        38987:10340 Do not advertise to MICROSOFT Cache (AS8075)
remarks:        38987:1034x Prepend x times [x=1..5] with AS38987 to MICROSOFT CACHE (AS8075)
remarks:        38987:10350 Do not advertise to AMAZON (AS16509)
remarks:        38987:1035x Prepend x times [x=1..5] with AS38987 to AMAZON (AS16509)
remarks:        38987:10360 Do not advertise to CLOUDFLARE (AS13335)
remarks:        38987:1036x Prepend x times [x=1..5] to CLOUDFLARE (AS13335)
remarks:        38987:10370 Do not advertise to AKAMAI via EPIX KATOWICE (AS20940)
remarks:        38987:1037x Prepend x times [x=1..5] with AS38987 to AKAMAI via EPIX KATOWICE (AS20940)
remarks:        38987:10380 Do not advertise to AKAMAI via EPIX WARSZAWA (AS20940)
remarks:        38987:1038x Prepend x times [x=1..5] with AS38987 to AKAMAI via EPIX WARSZAWA (AS20940)
remarks:        38987:10390 Do not advertise to HE via TPIX PL (AS6939)
remarks:        38987:1039x Prepend x times [x=1..5] with AS38987 to HE via TPIX WARSZAWA (AS6939)
remarks:        38987:10400 Do not advertise to META via TPIX PL (AS32934)
remarks:        38987:1040x Prepend x times [x=1..5] with AS38987 to META via TPIX PL (AS32934)
remarks:        38987:10410 Do not advertise to META via EPIX WARSZAWA (AS32934)
remarks:        38987:1041x Prepend x times [x=1..5] with AS38987 to META via EPIX WARSZAWA (AS32934)
remarks:        38987:10420 Do not advertise to META via EPIX KATOWICE (AS63293)
remarks:        38987:1042x Prepend x times [x=1..5] with AS38987 to META via EPIX KATOWICE (AS63293)
remarks:        -----------------------------------------------------------------
remarks:        -----------------------------------------------------------------
remarks:        38987:999 Blackhole in OST - available to PEERS (not upstreams)
remarks:        -----------------------------------------------------------------
remarks:        -----------------------------------------------------------------
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
notify:         registry@ostnet.pl
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         OST-MNT
created:        2005-11-23T16:17:55Z
last-modified:  2025-11-13T09:30:25Z
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-OSTW2-RIPE
org-name:       Spoldzielnia Telekomunikacyjna OST
country:        PL
org-type:       LIR
address:        Dummy address for ORG-OSTW2-RIPE
# Email removed, Log into bgp.tools to see whois emails
abuse-c:        OCIN1-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        OST-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         OST-MNT
created:        2005-09-30T13:08:02Z
last-modified:  2020-12-16T12:47:17Z
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: 2026-02-07T03:23:46Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RIPE	as-plix-connected	228
RIPE	as29535:as-tpix	84597
RIPE	as5617:as-world-transit	3063
LEVEL3	as-level3-origins-eu	0
RIPE	as12968:as-acx	157
RIPE	as-exatel-pl	2922
RIPE	as-ost6	1
RIPE	as5617:as-pl	2036
RIPE	as29535:as-mix2	685
RIPE	as-ost	6
RIPE	as-exatel-int	2657
RIPE	as-tpix	84258