AS Number
AS Name
Org Name
Master Internet s.r.o.






AS24971 Looking Glass






IPv6 NUMs(/64)


58,880 IPv4 Addresses
CIDR Description IP Num Bydzovsky s.r.o. 1024 ProfiSMS s.r.o. 256 VPSFREE-PRG4 1024 VPSFREE-PRG6 1024 Master Internet s.r.o. 8192 Master Internet s.r.o. 4096 Master Internet s.r.o. 4096 Master Internet s.r.o. 8192 VITS-PROXY-NETWORK 256 Master Internet s.r.o. 2048 Master Internet s.r.o. 8192 Internet Info, s.r.o. 256 QCM, s.r.o. 1024 oXyShop s.r.o. 256 W HOSTING, s.r.o. 1024 Axfone s.r.o. 256 BNV-NET1 256 Master Internet s.r.o. 2048 HostingSolutions s.r.o. 512 Master Internet s.r.o. 4096, z.s. 512 VPSFREE-BRQ3 512 NETIO Solutions s.r.o. 1024 ANAFRA s.r.o. 1024 Master Internet s.r.o. 1024 ServerNow s.r.o. 1024 Etnetera Core a.s. 1024 AdminIT, s. r. o. 1024 NETIO Solutions s.r.o. 512 NETIO Solutions s.r.o. 512 Imarto Inc. 512 ServerNow s.r.o. 1024 Virtualmaster, s.r.o. 1024
CIDR Description IP NUMs(prefix /64)
2001:678:a50::/48 Imarto Inc. 65536
2001:67c:68::/48 Internet Info, s.r.o. 65536
2a00:8220::/32 NETIO Solutions s.r.o. 4294967296
2a00:a5a0::/32 ANAFRA-6-CU0 4294967296
2a01:430::/32 Master Internet s.r.o. 4294967296
2a03:3b40::/40 VPSFREE-IPV6-PRG2 16777216
2a03:3b40:100::/40 VPSFREE-IPV6-BRQ2 16777216
2a03:3b40:200::/39 VPSFREE-IPV6-TUNNELS 33554432
2a03:7460::/32 ServerNow s.r.o. 4294967296
2a04:16c0:200::/48 NL-BITSAFE-002 65536
2a07:4880::/29 Etnetera Core a.s. 34359738368
2a0b:3240::/32 Bydzovsky s.r.o. 4294967296
2a0c:6380::/29 AdminIT, s. r. o. 34359738368
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS40994 Alwyzon - Hohl IT e.U., AT Austria 2,560 4,295,032,832 IPv4 IPv4 IPv6 IPv6
AS8529 OMANTEL-AS - Zain Omantel International FZ-LLC, AE United Arab Emirates 15,360 0 IPv6 IPv6
AS197451 VUTBR-AS - Brno University of Technology, CZ Czech 67,072 55,834,836,992 IPv6 IPv6
AS1299 TWELVE99 - Arelion Sweden AB, SE Sweden 229,632 88,068,194,304 IPv4 IPv4 IPv6 IPv6
AS37721 Virtual-Technologies-Solutions-SA - Virtual Technologies & Solutions, BF Burkina Faso 15,360 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS21320 GEANT_IAS_VRF - GEANT Vereniging, NL Netherlands 2,048 4,295,032,832 IPv4 IPv4 IPv6 IPv6
AS33891 CORE-BACKBONE - Core-Backbone GmbH, DE Germany 0 0 IPv6 IPv6
AS4455 BSO - IX Reach Ltd, GB United Kingdom 56,320 12,884,967,424 IPv4 IPv4
AS8218 NEO-ASN - Zayo Infrastructure France SA, FR France 47,616 12,884,967,424 IPv4 IPv4 IPv6 IPv6
AS59890 Kabel-TV-Lampert - Kabel-TV Lampert GmbH & Co KG, AT Austria 13,312 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS199524 GCORE - G-Core Labs S.A., LU Luxembourg 87,552 107,937,792 IPv4 IPv4 IPv6 IPv6
AS8447 A1TELEKOM-AT - A1 Telekom Austria AG, AT Austria 2,831,360 171,799,150,592 IPv4 IPv4
AS49544 i3Dnet - B.V, NL Netherlands 101,632 341,184,020,480 IPv4 IPv4 IPv6 IPv6
AS9002 RETN-AS - RETN Limited, GB United Kingdom 34,048 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS14840 COMMCORP COMUNICACOES LTDA, BR Brazil 64,512 15,083,634,688 IPv4 IPv4 IPv6 IPv6
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 21,504 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS35369 LINZAG-TELEKOM-AS - LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und Telekommunikation, AT Austria 38,400 4,294,967,296 IPv4 IPv4
AS39120 CONVERGENZE-AS - Convergenze S.p.A., IT Italy 38,144 12,884,901,888 IPv4 IPv4 IPv6 IPv6
AS51184 FONIRA - Fonira Telekom GmbH, AT Austria 12,800 111,669,739,520 IPv4 IPv4 IPv6 IPv6
AS6204 ZET-NET - INTERKVM HOST SRL, RO Romania 512 268,435,456 IPv4 IPv4 IPv6 IPv6
AS6939 HURRICANE - Hurricane Electric LLC, US United States 525,312 282,631,666,794,496 IPv4 IPv4 IPv6 IPv6
AS57463 NetIX - NetIX Communications JSC, BG Bulgaria 512 0 IPv4 IPv4 IPv6 IPv6
AS60068 CDN77 - Datacamp Limited, GB United Kingdom 98,304 990,052,352 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS21045 QnetCZ - K-net Technical International Group, s.r.o., CZ Czech 4,096 0 IPv4 IPv4
AS204957 GREENFLOID-AS - GREEN FLOID LLC, US United States 73,216 68,719,738,880 IPv4 IPv4 IPv6 IPv6
AS207167 amccomp-master-brno - mapnet IT services s.r.o., CZ Czech 3,584 38,654,705,664 IPv4 IPv4 IPv6 IPv6
AS208355 techkeeper - TechKeeper s.r.o., CZ Czech 1,024 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS48921 VEROTEL-AS - Yoursafe Holding B.V., NL Netherlands 1,280 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS51134 INTACTO-AS - Development 777 s.r.o., CZ Czech 1,792 34,359,803,904 IPv4 IPv4 IPv6 IPv6
AS24641 FASTER-AS - FASTER CZ spol. s r.o., CZ Czech 17,920 8,589,934,592 IPv6 IPv6
AS199806 DCIT-AS-CZ - DCIT, a.s., CZ Czech 256 65,536 IPv6 IPv6
AS211085 amccomp-master-praha - mapnet IT services s.r.o., CZ Czech 0 65,536 IPv6 IPv6

Peers at this Exchange Point

Country/Region IX IPv4 IPv6 Port Speed Updated
Czech NIX.CZ - Neutral Internet Exchange in the Czech Republic 2001:7f8:14::11:1 100 Gbps 2021-08-18 11:42:18
Slovakia NIX.SK - Neutral Internet eXchange Slovakia 2001:7f8:91::8:1 10 Gbps 2020-11-30 00:04:18
Czech BR-IX - Brno University of Technology 2001:7f8:87::11 10 Gbps 2017-08-15 11:50:53
Czech - eXchange 2001:7f8:7f::14 100 Gbps 2023-03-21 05:48:08
Czech NIX.CZ FENIX 2001:7f8:14:5ec::11:1 100 Gbps 2021-08-18 11:42:18
Czech NIX.CZ FENIX 2001:7f8:14:5ec::11:2 100 Gbps 2021-02-10 09:18:09
Czech NIX.CZ - Neutral Internet Exchange in the Czech Republic 2001:7f8:14::11:2 100 Gbps 2021-02-10 09:18:09

Private Peering Facilities

Country/Region Name City Website Updated
CE Colo Prague Prague 2016-03-14 21:50:19
GTS Telehouse Prague Prague 2016-03-14 21:50:19
Master DC Prague Prague 2016-03-14 20:31:40
Master DC Brno Brno 2016-03-14 20:31:40
IP Address Domain NUMs Domains 10 290
as-block:       AS24879 - AS24986
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2018-11-22T15:27:30Z
last-modified:  2018-11-22T15:27:30Z
source:         RIPE

aut-num:        AS24971
as-name:        MASTER-AS
org:            ORG-MIs2-RIPE
remarks:        .  .              _  _
remarks:        |\/| _. __|_ _ ._| \/
remarks:        |  |(_|_> |_(/_| |_/\_
descr:          Czech Republic /
descr:          e-mail: [email protected]
remarks:        ========================  Upstream  ========================
remarks:        = Arelion FKA Telia
import:         from AS1299 action pref=90; accept ANY AND NOT {};
export:         to AS1299  announce  AS24971:AS-MASTERCZ
remarks:        = RETN
import:         from AS9002 action pref=90; accept ANY AND NOT {};
export:         to AS9002  announce  AS24971:AS-MASTERCZ
remarks:        ========================  Downstream ========================
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
export:         to AS207167 announce {};
remarks:        = LAYER6
import:         from AS204957 action pref=10; accept AS204957;
export:         to AS204957 announce {};
remarks:        = Techkeeper
import:         from AS208355 action pref=10; accept AS208355;
export:         to AS208355 announce {};
remarks:        ======================== peering ========================
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:        ========================  NIX Prague peering ========================
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:        ========================  NIX Bratislava peering ========================
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
admin-c:        MAIc-RIPE
admin-c:        MZI-RIPE
tech-c:         MAIc-RIPE
tech-c:         MZI-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MASTER-MNT
created:        2002-06-11T14:14:49Z
last-modified:  2024-04-02T07:23:39Z
source:         RIPE

organisation:   ORG-MIs2-RIPE
org-name:       Master Internet s.r.o.
country:        CZ
org-type:       LIR
address:        Jiraskova 21
address:        602 00
address:        Brno
address:        CZECH REPUBLIC
phone:          +420 777919700
e-mail:         [email protected]
mnt-ref:        MASTER-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MASTER-MNT
admin-c:        PV352-RIPE
admin-c:        JIPA-RIPE
admin-c:        MZI-RIPE
admin-c:        PZAK-RIPE
abuse-c:        MAIc-RIPE
created:        2004-04-17T11:04:37Z
last-modified:  2020-12-16T12:56:39Z
source:         RIPE

role:           Master Internet contact
address:        Master Internet s.r.o
address:        Jiraskova 21
address:        602 00 Brno
address:        Czech Republic
phone:          +420777919484
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        PV352-RIPE
tech-c:         MZI-RIPE
tech-c:         JIPA-RIPE
tech-c:         MMAS-RIPE
nic-hdl:        MAIc-RIPE
mnt-by:         MASTER-MNT
created:        2009-03-28T19:44:57Z
last-modified:  2013-10-10T10:00:26Z
source:         RIPE

person:         Martin Zidek
address:        Master Internet s.r.o.
address:        Cejl 20
address:        602 00 Brno
address:        Czech Republic
phone:          +420 777919700
e-mail:         [email protected]
nic-hdl:        MZI-RIPE
mnt-by:         MASTER-MNT
created:        2008-04-11T07:45:37Z
last-modified:  2017-10-30T22:00:16Z
source:         RIPE