AS24971 MasterDC s.r.o.

Company Website:

https://www.master.cz

Company Looking Glass:

https://lg.masterinter.net

Looking Glass:

https://bgp.he.net/lg/24971

Country of Origin:

Czech Republic

Internet Exchanges: 4

Prefixes Originated (all): 46
Prefixes Originated (v4): 33
Prefixes Originated (v6): 13

Prefixes Announced (all): 121
Prefixes Announced (v4): 65
Prefixes Announced (v6): 56

RPKI Originated Valid (all): 45
RPKI Originated Valid (v4): 32
RPKI Originated Valid (v6): 13

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

BGP Peers Observed (all): 65
BGP Peers Observed (v4): 59
BGP Peers Observed (v6): 49

IPs Originated (v4): 58,880
AS Paths Observed (v4): 844
AS Paths Observed (v6): 793

Average AS Path Length (all): 3.707
Average AS Path Length (v4): 3.829
Average AS Path Length (v6): 3.578

AS24971 IPv4 Peers

ASN	Name
AS1299	Arelion Sweden AB
AS9002	RETN Limited
AS6939	Hurricane Electric LLC
AS6204	INTERKVM HOST SRL
AS14840	BR.Digital Telecom
AS53062	ACESSOLINE TELECOMUNICACOES LTDA
AS8218	Zayo Infrastructure France SA
AS216265	ARISTO NETWORKS LTD
AS33891	Core-Backbone GmbH
AS50629	LWLcom GmbH

AS24971 IPv6 Peers

ASN	Name
AS9002	RETN Limited
AS6939	Hurricane Electric LLC
AS1299	Arelion Sweden AB
AS197451	Brno University of Technology
AS207167	mapnet IT services s.r.o.
AS14840	BR.Digital Telecom

AS24971 IPv4 Peer Count

AS24971 IPv6 Peer Count

AS24971 IPv4 Prefixes Announced

AS24971 IPv6 Prefixes Announced

AS24971 IPv4 Prefixes Originated

AS24971 IPv6 Prefixes Originated

AS24971 IPv4 Route Propagation

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AS24971 IPv6 Route Propagation

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Prefix	Description	Visibility
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Prefix	Description
5.180.200.0/22	Bydzovsky s.r.o.
37.140.220.0/24	ProfiSMS s.r.o.
37.205.8.0/22	vpsFree.cz, z.s.
37.205.12.0/22	VPSFREE-PRG6
77.93.192.0/19	MasterDC s.r.o.
80.79.16.0/20	MasterDC s.r.o.
81.31.32.0/20	MasterDC s.r.o.
83.167.224.0/19	MasterDC s.r.o.
83.223.52.0/24	VITS-PROXY-NETWORK
85.118.128.0/21	MasterDC s.r.o.
89.185.224.0/19	MasterDC s.r.o.
91.213.160.0/24	Internet Info, s.r.o.
91.214.192.0/22	QCM, s.r.o.
91.216.179.0/24	oXyShop s.r.o.
91.226.216.0/22	W HOSTING, s.r.o.
92.63.56.0/24	Axfone s.r.o.
130.193.16.0/24	AUTO GAMES PLUS a.s.
149.62.144.0/21	MasterDC s.r.o.
176.227.168.0/23	HostingSolutions s.r.o.
178.238.32.0/20	MasterDC s.r.o.
185.8.164.0/23	vpsFree.cz, z.s.
185.8.166.0/23	vpsFree.cz, z.s.
185.25.184.0/22	NETIO Solutions s.r.o.
185.32.160.0/22	ANAFRA a.s.
185.58.40.0/22	MasterDC s.r.o.
185.85.164.0/22	ServerNow s.r.o.
185.145.160.0/22	Etnetera Core a.s.
185.239.216.0/22	AdminIT, s. r. o.
188.213.234.0/23	NETIO Solutions s.r.o.
188.215.18.0/23	NETIO Solutions s.r.o.
193.169.160.0/23	Imarto Inc.
194.145.180.0/22	ServerNow s.r.o.
195.140.252.0/22	Virtualmaster, s.r.o.

Prefix	Description	Visibility
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Prefix	Description
2001:678:a50::/48	Imarto Inc.
2001:67c:68::/48	Internet Info, s.r.o.
2a00:8220::/32	NETIO Solutions s.r.o.
2a00:a5a0::/32	ANAFRA a.s.
2a01:430::/32	MasterDC s.r.o.
2a03:3b40::/40	vpsFree.cz - IPv6 - Prague 2
2a03:3b40:100::/40	vpsFree.cz - IPv6 - Brno 2
2a03:3b40:200::/39	vpsFree.cz, z.s.
2a03:7460::/32	ServerNow s.r.o.
2a04:16c0:200::/48	Verotel Merchant Services B.V.
2a07:4880::/29	Etnetera Core a.s.
2a0b:3240::/32	Bydzovsky s.r.o.
2a0c:6380::/29	AdminIT, s. r. o.

Bogon Prefixes
Prefix	Type	Status

Rank	Description	IPv6	Peer
1	Arelion Sweden AB	X	AS1299
2	RETN Limited	X	AS9002
3	Hurricane Electric LLC	X	AS6939
4	INTERKVM HOST SRL	X	AS6204
5	BR.Digital Telecom	X	AS14840
6	ACESSOLINE TELECOMUNICACOES LTDA		AS53062
7	Zayo Infrastructure France SA	X	AS8218
8	ARISTO NETWORKS LTD		AS216265
9	Core-Backbone GmbH	X	AS33891
10	LWLcom GmbH		AS50629
11	Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH	X	AS1764
12	mapnet IT services s.r.o.	X	AS207167
13	GEANT Vereniging	X	AS21320
14	Yoursafe Holding B.V.	X	AS48921
15	ROUTE 95 LLC	X	AS204957
16	Broadband Hosting B.V.	X	AS20562
17	IX Reach Ltd	X	AS4455
18	Durand do Brasil Ltda		AS22356
19	Nessus GmbH	X	AS47692
20	Lancom Ltd.	X	AS199081
21	NIX.CZ z.s.p.o.	X	AS6881
22	SG.GS	X	AS24482
23	Exatel S.A.	X	AS20804
24	Inovare-Prim SRL	X	AS60602
25	NETPLANET GmbH		AS24953
26	Fonira Telekom GmbH	X	AS51184
27	MC-IX Matrix Internet Exchange RS-1	X	AS55818
28	Atman Sp. z o.o.		AS15694
29	Joint Venture Dragon Capital LLC		AS64481
30	Telemach Slovenija d.o.o.	X	AS3212
31	Akronic Network LTDA	X	AS199829
32	NetIX Communications JSC	X	AS57463
33	SIACOM JSC	X	AS198150
34	K-net Technical International Group, s.r.o.		AS21045
35	OVH SAS	X	AS16276
36	Netia SA		AS12741
37	TurkNet Iletisim Hizmetleri A.S.	X	AS12735
38	Wobcom GmbH	X	AS9136
39	Huge Solucoes Corporativas Ltda		AS264409
40	OMONIA		AS44306
41	Open X Tecnologia Ltda	X	AS263444
42	Euroweb Romania S.R.L.	X	AS6663
43	Convergenze S.p.A.	X	AS39120
44	NetActuate, Inc	X	AS36236
45	Kabel-TV Lampert GmbH & Co KG	X	AS59890
46	Telehouse EAD		AS57344
47	Novelcomm LP	X	AS206735
48	CORIX NETWORKS		AS999
49	Freenet Liberec, z.s.	X	AS29504
50	Virtual Technologies & Solutions	X	AS37721
51	Hohl IT e.U.	X	AS40994
52	INIZIO Internet Media s.r.o.		AS202857
53	Valve Corporation	X	AS32590
54	Hetzner Online GmbH	X	AS24940
55	mapnet IT services s.r.o.	X	AS211085
56	Development 777 s.r.o.	X	AS51134
57	Fiord Networks, UAB		AS28917
58	i3D.net B.V	X	AS49544
59	ISP Alliance a.s.		AS47232

Rank	Description	IPv4	Peer
1	RETN Limited	X	AS9002
2	Hurricane Electric LLC	X	AS6939
3	Arelion Sweden AB	X	AS1299
4	Brno University of Technology		AS197451
5	mapnet IT services s.r.o.	X	AS207167
6	BR.Digital Telecom	X	AS14840
7	Yoursafe Holding B.V.	X	AS48921
8	Zayo Infrastructure France SA	X	AS8218
9	INTERKVM HOST SRL	X	AS6204
10	Broadband Hosting B.V.	X	AS20562
11	Nessus GmbH	X	AS47692
12	i3D.net B.V	X	AS49544
13	GEANT Vereniging	X	AS21320
14	Novelcomm LP	X	AS206735
15	wilhelm.tel GmbH		AS15943
16	Kabel-TV Lampert GmbH & Co KG	X	AS59890
17	Open X Tecnologia Ltda	X	AS263444
18	EDGOO NETWORKS UNIPESSOAL LDA		AS6424
19	Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH	X	AS1764
20	Telemach Slovenija d.o.o.	X	AS3212
21	Fonira Telekom GmbH	X	AS51184
22	NetIX Communications JSC	X	AS57463
23	IX Reach Ltd	X	AS4455
24	NetActuate, Inc	X	AS36236
25	Fiber Telecom S.p.A.		AS41327
26	SIACOM JSC	X	AS198150
27	NIX.CZ z.s.p.o.	X	AS6881
28	Core-Backbone GmbH	X	AS33891
29	mapnet IT services s.r.o.	X	AS211085
30	Convergenze S.p.A.	X	AS39120
31	Lancom Ltd.	X	AS199081
32	Euroweb Romania S.R.L.	X	AS6663
33	Akronic Network LTDA	X	AS199829
34	Inovare-Prim SRL	X	AS60602
35	Virtual Technologies & Solutions	X	AS37721
36	VSX Networks		AS262355
37	OVH SAS	X	AS16276
38	Hetzner Online GmbH	X	AS24940
39	TurkNet Iletisim Hizmetleri A.S.	X	AS12735
40	Hohl IT e.U.	X	AS40994
41	Wobcom GmbH	X	AS9136
42	ROUTE 95 LLC	X	AS204957
43	SG.GS	X	AS24482
44	Valve Corporation	X	AS32590
45	Exatel S.A.	X	AS20804
46	Zain Omantel International FZ-LLC		AS8529
47	MC-IX Matrix Internet Exchange RS-1	X	AS55818
48	Development 777 s.r.o.	X	AS51134
49	Freenet Liberec, z.s.	X	AS29504

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RIPE

aut-num: AS24971 as-name: MASTER-AS org: ORG-MIs2-RIPE remarks: . . _ _ remarks: |\/| _. __|_ _ ._| \/ remarks: | |(_|_> |_(/_| |_/\_ remarks: descr: Czech Republic / www.master.cz descr: e-mail: noc@master.cz remarks: remarks: ======================== Upstream ======================== remarks: remarks: = Arelion FKA Telia remarks: import: from AS1299 action pref=90; accept ANY AND NOT {0.0.0.0/0}; export: to AS1299 announce AS24971:AS-MASTERCZ remarks: remarks: = RETN remarks: import: from AS9002 action pref=90; accept ANY AND NOT {0.0.0.0/0}; export: to AS9002 announce AS24971:AS-MASTERCZ remarks: remarks: ======================== Downstream ======================== remarks: remarks: = Q-Net CZ import: from AS21045 action pref=10; accept AS21045 export: to AS21045 announce ANY remarks: = netsafe import: from AS48921 action pref=10; accept AS48921 AS61005:AS-OPENTLD export: to AS48921 announce ANY remarks: = INTACTO GAMES a.s. import: from AS51134 action pref=10; accept AS51134 export: to AS51134 announce ANY remarks: = DCIT, a.s. import: from AS199806 action pref=10; accept AS199806 export: to AS199806 announce ANY remarks: = amccomp s.r.o. import: from AS207167 action pref=10; accept AS207167 AS201922 AS208143 AS215777 AS206321 AS207583 AS207575 AS207576 export: to AS207167 announce {0.0.0.0/0}; remarks: = LAYER6 import: from AS204957 action pref=10; accept AS204957 AS202051; export: to AS204957 announce {0.0.0.0/0}; remarks: = Dragon-Capital import: from AS64481 action pref=10; accept AS64481; export: to AS64481 announce {0.0.0.0/0}; remarks: = INIZIO Internet Media s.r.o. import: from AS202857 action pref=10; accept AS202857; export: to AS202857 announce {0.0.0.0/0}; remarks: remarks: ======================== peering.cz peering ======================== remarks: import: from AS24971:AS-MAI-PEERING-CZ-PEER action pref = 50; accept as-peeringcz-rs export: to AS24971:AS-MAI-PEERING-CZ-PEER announce AS24971:AS-MASTERCZ-CZPEERING remarks: remarks: ======================== NIX Prague peering ======================== remarks: import: from AS24971:AS-MAI-NIX-PEER action pref = 50; accept AS47200:AS-NIXCZ-RSCLIENTS export: to AS24971:AS-MAI-NIX-PEER announce AS24971:AS-MASTERCZ-CZNIX remarks: remarks: ======================== NIX Bratislava peering ======================== remarks: import: from AS24971:AS-MAI-NIX-PEER action pref = 50; accept AS47627:AS-NIXSK-RSCLIENTS export: to AS24971:AS-MAI-NIX-PEER announce AS24971:AS-MASTERCZ-SKNIX remarks: admin-c: DUMY-RIPE tech-c: DUMY-RIPE status: ASSIGNED mnt-by: RIPE-NCC-END-MNT mnt-by: MASTER-MNT created: 2002-06-11T14:14:49Z last-modified: 2026-09-22T11:58:17Z 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: ****************************

Exchange	CC	City	IPv4	IPv6
BR-IX	CZ	Brno	185.1.25.11	2001:7f8:87::11
NIX.CZ	CZ	Prague	91.210.16.86 91.210.16.85	2001:7f8:14::11:2 2001:7f8:14::11:1
NIX.SK	SK	Bratislava	194.30.187.85	2001:7f8:91::8:1
Peering.cz	CZ	Prague	185.0.20.14	2001:7f8:7f::14

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