AS31230 Slovak University of Technology in Bratislava

Company Website:

http://www.six.sk

Looking Glass:

https://bgp.he.net/lg/31230

Country of Origin:

Internet Exchanges: 2

Prefixes Originated (all): 0
Prefixes Originated (v4): 0
Prefixes Originated (v6): 0

Prefixes Announced (all): 713
Prefixes Announced (v4): 665
Prefixes Announced (v6): 48

RPKI Originated Valid (all): 0
RPKI Originated Valid (v4): 0
RPKI Originated Valid (v6): 0

BGP Peers Observed (all): 64
BGP Peers Observed (v4): 62
BGP Peers Observed (v6): 46

IPs Originated (v4): 0
AS Paths Observed (v4): 301
AS Paths Observed (v6): 168

Average AS Path Length (all): 3.062
Average AS Path Length (v4): 3.083
Average AS Path Length (v6): 3.024

AS31230 IPv4 Peers

ASN	Name
AS28725	CETIN a.s.
AS31117	ENERGOTEL a.s.
AS15935	ha-vel internet s.r.o.
AS25248	RADIOKOMUNIKACE a.s.
AS5405	Inter.link GmbH
AS29405	VNET a.s.
AS50629	LWLcom GmbH
AS8778	Slovanet a.s.
AS48326	DataNetworks s.r.o.
AS49115	E-MAX INTERNET & IT s.r.o.

AS31230 IPv6 Peers

ASN	Name
AS9002	RETN Limited
AS28725	CETIN a.s.
AS15935	ha-vel internet s.r.o.
AS29405	VNET a.s.
AS50629	LWLcom GmbH
AS5405	Inter.link GmbH
AS25248	RADIOKOMUNIKACE a.s.
AS8778	Slovanet a.s.
AS34820	DELTA ONLINE spol. s r.o.
AS38949	Trestel SK, a.s.

AS31230 IPv4 Peer Count

AS31230 IPv6 Peer Count

AS31230 IPv4 Prefixes Announced

AS31230 IPv6 Prefixes Announced

Bogon Prefixes
Prefix	Type	Status

Rank	Description	IPv6	Peer
1	CETIN a.s.	X	AS28725
2	ENERGOTEL a.s.	X	AS31117
3	ha-vel internet s.r.o.	X	AS15935
4	RADIOKOMUNIKACE a.s.	X	AS25248
5	Inter.link GmbH	X	AS5405
6	VNET a.s.	X	AS29405
7	LWLcom GmbH	X	AS50629
8	Slovanet a.s.	X	AS8778
9	DataNetworks s.r.o.	X	AS48326
10	E-MAX INTERNET & IT s.r.o.	X	AS49115
11	DSI DATA, a. s.	X	AS35328
12	NTS workspace AG	X	AS15576
13	Trestel SK, a.s.	X	AS38949
14	O2 Business Services, a.s	X	AS28952
15	ACS spol. s r. o.	X	AS12905
16	LightStorm Services s.r.o.		AS42005
17	Anexia Cloud Solutions GmbH	X	AS47147
18	DELTA ONLINE spol. s r.o.	X	AS34820
19	bonet.systems, s. r. o.	X	AS44185
20	Kantonsschule Zug	X	AS34288
21	AIRNET s.r.o.	X	AS201603
22	WebSupport s.r.o.	X	AS51013
23	Stadtwerke Feldkirch	X	AS48362
24	Exatel S.A.		AS20804
25	ANTIK Telecom s.r.o	X	AS42841
26	Lancom Ltd.		AS199081
27	David Kondicz trading as KONFER networks		AS50953
28	MAXNETWORK s.r.o.		AS205168
29	Detronics s.r.o.		AS56656
30	Atlantis Telekomunikasyon Bilisim Hizmetleri San. ve Tic. Ltd. Sti.		AS204457
31	G-Core Labs S.A.	X	AS199524
32	KOMNET, s.r.o.		AS56926
33	Automation & Business, s.r.o.	X	AS208882
34	Serbian Open Exchange DOO	X	AS13004
35	PEGO Slovakia, s.r.o.		AS43653
36	Innsbrucker Kommunalbetriebe AG	X	AS31510
37	Rainside s.r.o.	X	AS12508
38	Fonira Telekom GmbH	X	AS51184
39	Voxility LLP		AS3223
40	Belgacom International Carrier Services SA		AS6774
41	Xenox IT & Kommunikations GmbH	X	AS215628
42	SATRO s.r.o.	X	AS31127
43	OSTV s.r.o.	X	AS209531
44	SateliX s.r.o.	X	AS60533
45	IP-Net s.r.o.	X	AS56349
46	LLC "OTT UKRAINE"		AS204384
47	FunkFeuer Wien - Verein zur Foerderung freier Netze	X	AS35492
48	Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET	X	AS2607
49	Kabel-TV Lampert GmbH & Co KG	X	AS59890
50	The Slovak Internet eXchange Services	X	AS1922
51	CETIN Ltd. Belgrade		AS15958
52	Kinet s.r.o.		AS57760
53	Telemach Slovenija d.o.o.		AS3212
54	LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und Telekommunikation	X	AS35369
55	GOLEM TECH s.r.o.	X	AS30929
56	ISPER, s.r.o.		AS43248
57	ZSR - ZT Bratislava	X	AS25496
58	DIGI SLOVAKIA, s.r.o.		AS49044
59	Hetzner Online GmbH	X	AS24940
60	Nessus GmbH	X	AS47692
61	Alanata a. s.	X	AS8620
62	Proximus Luxembourg S.A.		AS56665

Rank	Description	IPv4	Peer
1	RETN Limited		AS9002
2	CETIN a.s.	X	AS28725
3	ha-vel internet s.r.o.	X	AS15935
4	VNET a.s.	X	AS29405
5	LWLcom GmbH	X	AS50629
6	Inter.link GmbH	X	AS5405
7	RADIOKOMUNIKACE a.s.	X	AS25248
8	Slovanet a.s.	X	AS8778
9	DELTA ONLINE spol. s r.o.	X	AS34820
10	Trestel SK, a.s.	X	AS38949
11	NTS workspace AG	X	AS15576
12	bonet.systems, s. r. o.	X	AS44185
13	O2 Business Services, a.s	X	AS28952
14	ANTIK Telecom s.r.o	X	AS42841
15	Anexia Cloud Solutions GmbH	X	AS47147
16	WebSupport s.r.o.	X	AS51013
17	DSI DATA, a. s.	X	AS35328
18	Stadtwerke Feldkirch	X	AS48362
19	DataNetworks s.r.o.	X	AS48326
20	E-MAX INTERNET & IT s.r.o.	X	AS49115
21	The Slovak Internet eXchange Services	X	AS1922
22	Rainside s.r.o.	X	AS12508
23	ZSR - ZT Bratislava	X	AS25496
24	Fonira Telekom GmbH	X	AS51184
25	Kabel-TV Lampert GmbH & Co KG	X	AS59890
26	Alanata a. s.	X	AS8620
27	OSTV s.r.o.	X	AS209531
28	MakeNewMedia Communications GmbH		AS44765
29	SATRO s.r.o.	X	AS31127
30	Kantonsschule Zug	X	AS34288
31	G-Core Labs S.A.	X	AS199524
32	AIRNET s.r.o.	X	AS201603
33	ACS spol. s r. o.	X	AS12905
34	Hetzner Online GmbH	X	AS24940
35	Nessus GmbH	X	AS47692
36	Automation & Business, s.r.o.	X	AS208882
37	GOLEM TECH s.r.o.	X	AS30929
38	ENERGOTEL a.s.	X	AS31117
39	SateliX s.r.o.	X	AS60533
40	IP-Net s.r.o.	X	AS56349
41	Innsbrucker Kommunalbetriebe AG	X	AS31510
42	LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und Telekommunikation	X	AS35369
43	Serbian Open Exchange DOO	X	AS13004
44	Xenox IT & Kommunikations GmbH	X	AS215628
45	FunkFeuer Wien - Verein zur Foerderung freier Netze	X	AS35492
46	Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET	X	AS2607

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RIPE

aut-num: AS31230 as-name: SIX-ROUTE-SERVERS org: ORG-STU1-RIPE import: from AS-ANY accept ANY export: to AS-ANY announce AS-SIXSK-SETS mp-import: afi ipv6.unicast from AS-ANY accept ANY mp-export: afi ipv6.unicast to AS-ANY announce AS-SIXSK-SETS-V6 remarks: SIX Route Servers filter announcements from members against IRR. admin-c: DUMY-RIPE tech-c: DUMY-RIPE status: ASSIGNED mnt-by: RIPE-NCC-END-MNT mnt-by: SWDB-SANET mnt-by: AS2607-MNT created: 2015-05-19T13:53:22Z last-modified: 2025-10-16T07:35:28Z source: RIPE sponsoring-org: ORG-SAN1-RIPE remarks: Route server operation could be modified with following large BGP communities: remarks: remarks: 31230:0:peer-as - do not announce prefix to peer-as remarks: 31230:1:peer-as - announce prefix to peer-as remarks: 31230:100:peer-as - do not prepend when announcing to peer-as remarks: 31230:101:peer-as - apply 1 prepend when announcing to peer-as remarks: 31230:102:peer-as - apply 2 prepends when announcing to peer-as remarks: 31230:103:peer-as - apply 3 prepends when announcing to peer-as remarks: remarks: When you set peer-as to 0, action will be performed for all SIX peers. This could be overriden remarks: by setting additional BGP community for specific peer-as. remarks: remarks: If your router doesn't support large BGP communities, for 16-bit AS you can also use standard remarks: community 0:peer-as which works the same way as community 31230:0:peer-as. 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: ****************************

Exchange	CC	City	IPv4	IPv6
SIX.SK	SK	Bratislava	192.108.148.2 192.108.148.1	2001:7f8:2f::1 2001:7f8:2f::2
VIX	AT	Vienna	193.203.0.67	2001:7f8:30:0:2:1:3:1230

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