AS24971 Content
MASTER-AS
MasterDC s.r.o.
CZ
33
IPv4 Prefixes
13
IPv6 Prefixes
0
peering network
5
IX Points
4
Facilities
AS Name
MASTER-AS
Organization
Czech Republic / www.master.cz
Registration Date
2002-06-11T14:14:49Z
Update Date
2026-03-21T14:38:51Z
IPv4 Prefixes (33)
149.62.144.0/21 91.216.179.0/24 185.8.166.0/23 194.145.180.0/22 37.140.220.0/24 37.205.12.0/22 85.118.128.0/21 130.193.16.0/24 91.214.192.0/22 92.63.56.0/24 176.227.168.0/23 91.226.216.0/22 178.238.32.0/20 185.58.40.0/22 77.93.192.0/19 185.8.164.0/23 185.145.160.0/22 185.25.184.0/22 80.79.16.0/20 185.32.160.0/22 +13 个
IPv6 Prefixes (13)
2a00:8220::/32 2a01:430::/32 2a00:a5a0::/32 2a03:3b40:200::/39 2a03:3b40::/40 2a03:3b40:100::/40 2a03:7460::/32 2a04:16c0:200::/48 2a07:4880::/29 2a0b:3240::/32 2a0c:6380::/29 2001:67c:68::/48 +1 个
AS24971 network topology (Upstream/Downstream)
Facility List (4)
Name City Country
CE Colo Prague Prague CZ
GTS Telehouse Prague Prague CZ
Master DC Prague Prague CZ
Master DC Brno Brno CZ
Colocated Networks (Shared Data Center)
ASN Name Type Shared Facility
AS29208 Quantcom NSP 3/4
AS9002 RETN NSP 3/4
AS49121 Infinity Telecom NSP 2/4
AS47200 NIX.CZ Route Servers Route Server 2/4
AS43355 UPL TELECOM NSP 2/4
AS42000 Kaora NSP 2/4
AS39904 MERIT GROUP a.s. Cable/DSL/ISP 2/4
AS35592 Coolhousing Content 2/4
AS31246 NETBOX Cable/DSL/ISP 2/4
AS21430 WIA Cable/DSL/ISP 2/4
AS15685 Casablanca INT a.s. Content 2/4
AS12570 itself s.r.o. NSP 2/4
AS9080 Ipex Cable/DSL/ISP 2/4
AS8518 Radio Free Europe Content 2/4
AS6881 NIX.CZ, z.s.p.o. Non-Profit 2/4
AS174 Cogent Communications, Inc. NSP 2/4
AS215704 NGN CZ s.r.o. NSP 1/4
AS211816 ERON X Network Services 1/4
AS210139 DPT Cable/DSL/ISP 1/4
AS209810 Netcore services s.r.o. NSP 1/4
+10 colocated networks
Raw Whois Data
aut-num:        AS24971
as-name:        MASTER-AS
org:            ORG-MIs2-RIPE
remarks:        .  .              _  _
remarks:        |\/| _. __|_ _ ._| \/
remarks:        |  |(_|_> |_(/_| |_/\_
remarks:
descr:          Czech Republic / www.master.cz
descr:          e-mail: [email protected]
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 AS-FDR
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;
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:  2026-03-21T14:38:51Z
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:        ****************************




--- ARIN Whois ---


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


No match found for a AS24971.


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#