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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
	78.98.0.0/15	Slovak Telekom, a.s.
	84.47.0.0/17	Slovak Telekom, a.s.
	85.239.68.0/24	-
	85.239.69.0/24	-
	85.239.80.0/23	ANECT a.s.
	85.239.82.0/23	ANECT a.s.
	85.239.84.0/22	Hyperflex_demo
	85.248.31.0/24	SWAN, a.s.
	85.248.74.0/24	Migoli s. r. o.
	87.197.0.0/16	Slovak Telekom, a.s.
	91.127.0.0/16	Slovak Telekom, a.s.
	91.195.106.0/24	CESKA SPRAVA SOCIALNIHO ZABEZPECENI
	91.195.107.0/24	CESKA SPRAVA SOCIALNIHO ZABEZPECENI
	91.245.16.0/23	-
	95.102.0.0/15	Slovak Telekom, a.s.
	178.40.0.0/15	Slovak Telekom, a.s.
	185.58.102.0/24	-
	185.58.103.0/24	-
	193.84.7.0/24	Prague
	193.84.96.0/24	Prague
	193.84.97.0/24	Prague
	193.84.98.0/23	Prague
	193.84.245.0/24	Czech Environmental Institute
	193.200.143.0/24	Jadrova a vyradovacia spolocnost, a.s.
	193.201.110.0/24	Czech republic
	194.48.241.0/24	CESKY STATISTICKY URAD
	194.50.215.0/24	J&T BANKA, a.s.
	194.154.224.0/19	Slovak Telekom, a.s.
	194.169.224.0/24	JABLOTRON ALARMS a.s.
	195.91.0.0/17	Slovak Telekom, a.s.
	195.146.128.0/19	Slovak Telekom, a.s.
	195.146.130.0/24	Slovak Telekom
	195.216.240.0/24	Reditelstvi silnic a dalnic CR
	212.5.192.0/19	Slovak Telekom, a.s.
	213.81.128.0/17	Slovak Telekom, a.s.
	213.160.160.0/19	Slovak Telekom, a.s.
	2001:678:c14::/48	AISIN EUROPE MANUFACTURING CZECH s.r.o.
	2001:67c:16c0::/48	CESKY STATISTICKY URAD
	2001:67c:1bc4::/48	Urad prumysloveho vlastnictvi
	2001:67c:2cc0::/48	Sprava Prazskeho hradu
	2001:67c:2f9c::/48	Reditelstvi silnic a dalnic CR
	2a00:12a8::/29	Slovak Telekom, a.s.
	2a00:6bc0::/40	ANECT infrastructure
	2a01:5f7::/32	-

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS1299	Arelion (fka. Telia Carrier)	✔	✔
	AS3320	Deutsche Telekom AG	✔	✔
	AS44185	bonet.systems, s. r. o.	✔	✘
	AS33891	Core-Backbone GmbH	✔	✘

---

Peers

	ASN	Description	IPv4	IPv6
	AS1299	Arelion (fka. Telia Carrier)	✔	✔
	AS3320	Deutsche Telekom AG	✔	✔
	AS13036	T-Mobile Czech Republic a.s.	✔	✔
	AS6461	Zayo Bandwidth	✔	✔
	AS29148	SURANY.NET s.r.o.	✔	✔
	AS49117	DTnet Detva s.r.o.	✔	✔
	AS48298	MINISTERSTVO VNITRA CR	✔	✔
	AS33891	Core-Backbone GmbH	✔	✔
	AS5588	T-Mobile Czech Republic a.s.	✘	✔
	AS6939	Hurricane Electric LLC	✔	✔
	AS30898	DataCentrum	✔	✘
	AS21433	Accenture UK Limited	✔	✘
	AS50881	ESET, spol. s r.o.	✔	✔
	AS43542	OptoNet Communication, spol. s.r.o.	✔	✔
	AS203208	Czech Telecommunication Office	✔	✔
	AS201603	AIRNET s.r.o.	✔	✔
	AS216450	Letiste Praha, a. s.	✔	✘
	AS201841	Petit Press, a.s.	✔	✘
	AS204690	PLAYMAX s.r.o.	✔	✔
	AS201447	The Czech National Bank	✔	✘
	AS58239	hanspaul-city.net s.r.o.	✔	✔
	AS203165	Statni pokladna Centrum sdilenych sluzeb, s.p.	✔	✔
	AS47749	ORIFLAME SOFTWARE s.r.o.	✔	✔
	AS199220	KrU Stredoceskeho kraje	✔	✔
	AS202564	ITcity s.r.o.	✔	✔
	AS39904	MERIT GROUP a.s	✔	✔
	AS48574	T-Mobile Czech Republic a.s.	✔	✘
	AS31127	SATRO s.r.o.	✔	✔
	AS34475	Agrostroj Pelhrimov, a.s.	✔	✘
	AS196861	DIGITAL ACTION s.r.o.	✔	✔
	AS6663	Türk Telekom International	✔	✘
	AS49044	DIGISK	✔	✘
	AS50695	VLTAVA LABE MEDIA a.s.	✔	✔
	AS207696	Dopravni podnik hl.m. Prahy, a.s.	✔	✔
	AS35096	Alef Nula a.s.	✔	✔
	AS214945	Ministerstvo zahranicnich veci Ceske Republiky	✔	✔
	AS48907	Norttel s.r.o.	✔	✘
	AS44234	Gaya, s.r.o.	✔	✘
	AS25093	Ceska sporitelna a.s.	✔	✘
	AS200355	CadcaNet plus s. r. o.	✔	✘
	AS210117	OravaSK s.r.o.	✔	✘
	AS60829	NEVERNET, s.r.o.	✔	✘
	AS197694	Municipal Office of the City Prague	✔	✘
	AS208329	Ceska televize	✔	✘
	AS12344	CZECH IT CLUSTER, druzstvo	✔	✔
	AS44424	Allegro Retail a.s.	✔	✘
	AS201163	Komercni banka, a.s.	✔	✘
	AS202876	BBNW s.r.o.	✔	✔
	AS207095	FORTUNA GAME a.s.	✔	✘
	AS214396	Sudolio a.s.	✔	✔
	AS50698	TETA s.r.o.	✔	✔
	AS34521	Atos Slovakia s.r.o.	✔	✘
	AS43757	ICZ a.s.	✔	✔
	AS48304	Digmia s.r.o.	✔	✔
	AS213057	innogy Ceska republika a.s	✔	✘
	AS203080	SAP SE	✔	✘
	AS56955	Jan Galbac	✔	✘
	AS28892	Cesky urad zememericky a katastralni	✔	✔
	AS6830	Liberty Global Europe Holding B.V.	✔	✔
	AS204394	Cortex, a.s.	✔	✔
	AS20708	SKODA AUTO a.s.	✔	✔
	AS211731	Ministry of labour and social affairs	✔	✔
	AS56973	VITKOVICE IT SOLUTIONS a.s.	✔	✔
	AS198103	CCS Ceska spolecnost pro platebni karty s.r.o.	✔	✘
	AS200828	TERMS a.s.	✔	✔
	AS208414	WEDOS Internet, a.s.	✔	✔
	AS3573	Accenture LLP	✘	✔
	AS44185	bonet.systems, s. r. o.	✔	✘
	AS198143	Ceska Posta s.p.	✔	✔
	AS57788	Ringier Slovakia Media s.r.o.	✔	✘
	AS202830	KBC GLOBAL SERVICES NV	✔	✘
	AS56891	Narodni rozvojova banka, a.s.	✔	✘
	AS206909	News and Media Holding a.s.	✔	✘
	AS204716	PLAYMAX s.r.o.	✔	✘
	AS209100	TP NET Plus s.r.o	✔	✘
	AS197642	Slovak Telekom, a.s.	✔	✘
	AS54189	Maxion Wheels U.S.A. LLC	✔	✘
	AS6658	NAPRI s.r.o.	✔	✘
	AS213247	JUKO s.r.o. Presov	✔	✘
	AS34462	DITEC, a.s.	✔	✘
	AS201997	MCOM-NET s.r.o.	✔	✘
	AS215718	IBA Group a.s.	✔	✘
	AS200222	Sama Tech s.r.o.	✔	✘
	AS16158	Mavenir Ltd	✔	✘
	AS205080	SITA	✔	✘
	AS206908	FORTUNA GAME a.s.	✔	✘
	AS60086	Valvera s.r.o.	✔	✔
	AS204113	Security Information Service	✔	✘
	AS206198	ELVISDK, s.r.o.	✔	✘
	AS212537	Kia Slovakia s. r. o.	✔	✘
	AS34443	365.bank a. s.	✔	✘
	AS204772	Reditelstvi silnic a dalnic s.p.	✔	✔
	AS197083	K2 atmitec s.r.o.	✔	✘
	AS59747	NIX.CZ z.s.p.o.	✔	✔
	AS10780	Pure Storage, INC.	✔	✘
	AS196762	ALKOM Security, a.s.	✔	✘
	AS2571	DHL Information Services (Europe) s.r.o	✔	✔
	AS213152	Narodni bezpecnostni urad Czech Republic	✔	✔
	AS15380	Air Navigation Services of the Czech Republic, state ...	✔	✘
	AS42826	Axians Slovakia s.r.o.	✔	✘
	AS198101	Kooperativa pojistovna, a.s., Vienna Insurance Group	✔	✔
	AS2607	Zdruzenie pouzivatelov Slovenskej akademickej datovej...	✔	✔
	AS48451	Prazska energetika, a.s.	✔	✔
	AS198543	MAC TV s.r.o.	✔	✔
	AS57007	NITEX ISP s.r.o.	✔	✔
	AS21430	WIA spol. s.r.o.	✔	✘
	AS16019	Vodafone Czech Republic a.s.	✔	✔
	AS15169	Google LLC	✔	✔
	AS48417	ITS akciova spolecnost	✔	✔
	AS199806	DCIT, a.s.	✔	✔
	AS29208	Quantcom, a.s.	✔	✔
	AS198494	PREGIS, a.s	✔	✔
	AS31349	a-net Liberec s.r.o.	✔	✔
	AS48405	CGI IT Czech Republic s.r.o.	✔	✘
	AS202877	VEJNET.CZ s.r.o.	✔	✔
	AS42	WoodyNet, Inc.	✔	✘
	AS57069	Dempsey and Clark s.r.o.	✔	✘
	AS29134	Webglobe, s.r.o.	✔	✔
	AS12767	T-Mobile Czech Republic a.s.	✔	✔
	AS20940	Akamai International B.V.	✔	✔
	AS48326	DataNetworks s.r.o.	✔	✘
	AS203411	FORTUNA GAME a.s.	✔	✘
	AS198161	Sokolovska uhelna, pravni nastupce, a.s.	✔	✔
	AS35328	DSI DATA, a. s.	✔	✘
	AS394545	Wrike, Inc.	✔	✘
	AS209531	OSTV s.r.o.	✔	✔
	AS30929	GOLEM TECH s.r.o.	✔	✔
	AS15962	Orange Slovensko a.s.	✔	✘
	AS199722	Sberbank CZ, a.s. v likvidaci	✔	✘
	AS49121	Infinity Telecom, s.r.o.	✘	✔
	AS56926	KOMNET, s.r.o.	✔	✘
	AS56349	IP-Net s.r.o.	✔	✘
	AS60533	SateliX s.r.o.	✔	✘
	AS49115	E-MAX INTERNET & IT s.r.o.	✔	✘
	AS39453	Ustav zdravotnickych informaci a statistiky Ceske republiky	✔	✘
	AS12508	Rainside s.r.o.	✔	✘
	AS42000	Futruy s.r.o.	✔	✘
	AS15935	ha-vel internet s.r.o.	✔	✘
	AS42005	LightStorm Services s.r.o.	✔	✘
	AS200055	Penta Investments Limited	✔	✘
	AS200646	BH securities, a.s.	✔	✘
	AS5610	O2 Czech Republic, a.s.	✔	✘
	AS208882	Automation & Business, s.r.o.	✘	✔
	AS206548	ZCOM.cz s.r.o	✘	✔
	AS12905	ACS spol. s r. o.	✔	✘
	AS29405	VNET a.s.	✘	✔
	AS3856	Packet Clearing House, Inc.	✔	✘
	AS28725	CETIN a.s.	✔	✘
	AS47232	ISP Alliance a.s.	✔	✘
	AS21942	AS21942	✔	✘

---

Downstreams

	ASN	Description	IPv4	IPv6
	AS13036	T-Mobile Czech Republic a.s.	✔	✔
	AS29148	SURANY.NET s.r.o.	✔	✔
	AS49117	DTnet Detva s.r.o.	✔	✔
	AS48298	MINISTERSTVO VNITRA CR	✔	✔
	AS30898	DataCentrum	✔	✘
	AS21433	Accenture UK Limited	✔	✘
	AS50881	ESET, spol. s r.o.	✔	✔
	AS43542	OptoNet Communication, spol. s.r.o.	✔	✔
	AS203208	Czech Telecommunication Office	✔	✔
	AS216450	Letiste Praha, a. s.	✔	✘
	AS201603	AIRNET s.r.o.	✔	✔
	AS204690	PLAYMAX s.r.o.	✔	✔
	AS201447	The Czech National Bank	✔	✘
	AS58239	hanspaul-city.net s.r.o.	✔	✔
	AS201841	Petit Press, a.s.	✔	✘
	AS203165	Statni pokladna Centrum sdilenych sluzeb, s.p.	✔	✔
	AS39904	MERIT GROUP a.s	✔	✔
	AS199220	KrU Stredoceskeho kraje	✔	✔
	AS47749	ORIFLAME SOFTWARE s.r.o.	✔	✔
	AS48574	T-Mobile Czech Republic a.s.	✔	✘
	AS31127	SATRO s.r.o.	✔	✔
	AS34475	Agrostroj Pelhrimov, a.s.	✔	✘
	AS202564	ITcity s.r.o.	✔	✔
	AS196861	DIGITAL ACTION s.r.o.	✔	✔
	AS49044	DIGISK	✔	✘
	AS50695	VLTAVA LABE MEDIA a.s.	✔	✔
	AS207696	Dopravni podnik hl.m. Prahy, a.s.	✔	✔
	AS214945	Ministerstvo zahranicnich veci Ceske Republiky	✔	✔
	AS35096	Alef Nula a.s.	✔	✔
	AS197694	Municipal Office of the City Prague	✔	✘
	AS208329	Ceska televize	✔	✘
	AS25093	Ceska sporitelna a.s.	✔	✘
	AS12344	CZECH IT CLUSTER, druzstvo	✔	✔
	AS200355	CadcaNet plus s. r. o.	✔	✘
	AS201163	Komercni banka, a.s.	✔	✘
	AS48907	Norttel s.r.o.	✔	✘
	AS210117	OravaSK s.r.o.	✔	✘
	AS60829	NEVERNET, s.r.o.	✔	✘
	AS44424	Allegro Retail a.s.	✔	✘
	AS44234	Gaya, s.r.o.	✔	✘
	AS202876	BBNW s.r.o.	✔	✔
	AS207095	FORTUNA GAME a.s.	✔	✘
	AS214396	Sudolio a.s.	✔	✔
	AS43757	ICZ a.s.	✔	✔
	AS48304	Digmia s.r.o.	✔	✔
	AS213057	innogy Ceska republika a.s	✔	✘
	AS203080	SAP SE	✔	✘
	AS34521	Atos Slovakia s.r.o.	✔	✘
	AS56955	Jan Galbac	✔	✘
	AS204394	Cortex, a.s.	✔	✔
	AS28892	Cesky urad zememericky a katastralni	✔	✔
	AS20708	SKODA AUTO a.s.	✔	✔
	AS50698	TETA s.r.o.	✔	✔
	AS211731	Ministry of labour and social affairs	✔	✔
	AS56973	VITKOVICE IT SOLUTIONS a.s.	✔	✔
	AS198103	CCS Ceska spolecnost pro platebni karty s.r.o.	✔	✘
	AS200828	TERMS a.s.	✔	✔
	AS208414	WEDOS Internet, a.s.	✘	✔
	AS3573	Accenture LLP	✘	✔
	AS198143	Ceska Posta s.p.	✔	✔
	AS56891	Narodni rozvojova banka, a.s.	✔	✘
	AS54189	Maxion Wheels U.S.A. LLC	✔	✘
	AS215718	IBA Group a.s.	✔	✘
	AS205080	SITA	✔	✘
	AS16158	Mavenir Ltd	✔	✘
	AS206908	FORTUNA GAME a.s.	✔	✘
	AS60086	Valvera s.r.o.	✔	✔
	AS204113	Security Information Service	✔	✘
	AS209100	TP NET Plus s.r.o	✔	✘
	AS213247	JUKO s.r.o. Presov	✔	✘
	AS202830	KBC GLOBAL SERVICES NV	✔	✘
	AS206909	News and Media Holding a.s.	✔	✘
	AS6658	NAPRI s.r.o.	✔	✘
	AS201997	MCOM-NET s.r.o.	✔	✘
	AS204716	PLAYMAX s.r.o.	✔	✘
	AS34462	DITEC, a.s.	✔	✘
	AS197642	Slovak Telekom, a.s.	✔	✘
	AS200222	Sama Tech s.r.o.	✔	✘
	AS57788	Ringier Slovakia Media s.r.o.	✔	✘
	AS204772	Reditelstvi silnic a dalnic s.p.	✔	✔
	AS59747	NIX.CZ z.s.p.o.	✔	✔
	AS197083	K2 atmitec s.r.o.	✔	✘
	AS10780	Pure Storage, INC.	✔	✘
	AS206198	ELVISDK, s.r.o.	✔	✘
	AS213152	Narodni bezpecnostni urad Czech Republic	✔	✔
	AS212537	Kia Slovakia s. r. o.	✔	✘
	AS34443	365.bank a. s.	✔	✘
	AS196762	ALKOM Security, a.s.	✔	✘
	AS2571	DHL Information Services (Europe) s.r.o	✔	✔
	AS15380	Air Navigation Services of the Czech Republic, state ...	✔	✘
	AS42826	Axians Slovakia s.r.o.	✔	✘
	AS198101	Kooperativa pojistovna, a.s., Vienna Insurance Group	✔	✔
	AS48451	Prazska energetika, a.s.	✔	✔
	AS198543	MAC TV s.r.o.	✘	✔
	AS57007	NITEX ISP s.r.o.	✔	✔
	AS48417	ITS akciova spolecnost	✔	✘
	AS199806	DCIT, a.s.	✔	✔
	AS198494	PREGIS, a.s	✔	✔
	AS31349	a-net Liberec s.r.o.	✔	✔
	AS48405	CGI IT Czech Republic s.r.o.	✔	✘
	AS202877	VEJNET.CZ s.r.o.	✔	✘
	AS57069	Dempsey and Clark s.r.o.	✔	✘
	AS203411	FORTUNA GAME a.s.	✔	✘
	AS12767	T-Mobile Czech Republic a.s.	✔	✘
	AS198161	Sokolovska uhelna, pravni nastupce, a.s.	✔	✘
	AS199722	Sberbank CZ, a.s. v likvidaci	✔	✘
	AS394545	Wrike, Inc.	✔	✘
	AS21942	AS21942	✔	✘

aut-num:        AS6855
as-name:        SK-TELEKOM
descr:          Slovak Telekom / T-Mobile CZ
org:            ORG-ST4-RIPE
remarks:        --------------
remarks:        -- Upstream --
remarks:        --------------
import:         from AS3320 action pref=60; accept ANY
import:         from AS1299 action pref=60; accept ANY
remarks:        -------------
remarks:        -- Peering --
remarks:        -------------
import:         from AS-SIXSTIP-SET action pref=70; accept ANY
remarks:        ----------------
remarks:        -- Upstream --
remarks:        --------------
export:         to AS3320 announce AS-SLOVAK
export:         to AS1299 announce AS-SLOVAK
export:         to AS5588 announce AS13036
remarks:        -------------
remarks:        -- Peering --
remarks:        -------------
export:         to AS-SIXSTIP-SET announce AS-SLOVAK
remarks:        ----------------
default:        to AS3320 action pref=100; networks ANY
remarks:        ==============================
remarks:        Communities to control traffic
remarks:        6855:1101 Do not announce to SIX
remarks:        6855:1102 Do not announce to DT AS3320
remarks:        6855:1107 Do not announce to TeliaSonera AS1299
remarks:        6855:1201 Prepend 6855 when announcing to SIX
remarks:        6855:1202 Prepend 6855 when announcing to AS3320
remarks:        6855:1207 Prepend 6855 when announcing to AS1299
remarks:        6855:1301 Prepend 6855 6855 when announcing to SIX
remarks:        6855:1302 Prepend 6855 6855 when announcing to AS3320
remarks:        6855:1307 Prepend 6855 6855 when announcing to AS1299
remarks:        6855:50 SET_LOCAL_PREFERENCE to 50
remarks:        6855:90 SET_LOCAL_PREFERENCE to 90
remarks:        LOC_PREF settings
remarks:        50 Customer routes - GLOBAL BACKUP
remarks:        60 Upstream providers
remarks:        70 Peering partners
remarks:        90 Customer routes - BACKUP links with ST AS6855
remarks:        100 Customer routes - PRIMARY connections
remarks:        Other:
remarks:        DSCP = 0 on ANY connection
remarks:        (upstream, peer, customers, dial customers, VPN customers)
remarks:        ================
remarks:        Route colouring:
remarks:        6855:2401 Routes from SIX peering
remarks:        6855:2402 Routes from DT
remarks:        6855:2407 Routes from TeliaSonera
remarks:        6855:2700 Default route
remarks:        POP NAME POP ID PA comm strings PI comm strings
remarks:        <name> xx 6855:26xx 6855:25xx
remarks:        ==================================================
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         SK-TELECOM-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2020-11-02T09:17:37Z
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-ST4-RIPE
org-name:       Slovak Telekom, a.s.
country:        SK
org-type:       LIR
address:        Dummy address for ORG-ST4-RIPE
mnt-ref:        SK-TELECOM-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SK-TELECOM-MNT
abuse-c:        STIP-RIPE
created:        2004-04-17T12:06:36Z
last-modified:  2026-04-29T05:30:35Z
source:         RIPE
# Email removed, Log into bgp.tools to see whois emails/phone numbers
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: 2026-05-06T03:23:38Z UTC

---

Member of the following AS-SETs

-	Member	ASN Count
RIPE	as-energotel_six_peers	52
RIPE	as-emaxsixpeers	39
RIPE	as-gtscz	882
RADB	as-btn-customers	1495
RIPE	as-ztba	2
RIPE	as8251:as-nix-peerings	49
RIPE	as-primanetsixpeers	39
RIPE	as-interoute	61415
RIPE	as-ewsk-six	34
RIPE	as42000:as-sixsk-peerings	35
RIPE	as-slovak	895
RIPE	as-ebone	80655
RIPE	as5578:as-sixpeers	51
RIPE	as-slovak6	4
RIPE	as-sixsk-members	57