AS24971 — MasterDC Master Internet
AS Name: MASTER-AS
Description: Czech Republic / www.master.cz e-mail: noc@master.cz
Organization: ORG-MIs2-RIPE
Registry: RIPE
Imports from (22)
Exports to (15)
⚠️ CIRCL BGP Security Rank: 0.0102% (position 8567)
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 AS48921AS-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 AS207167AS201922AS208143AS215777AS206321AS207583AS207575AS207576
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:
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: 2025-10-26T06:21:55Z
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: ****************************
Direct Membership
Macros that directly list AS24971 as a member:
AS24971:AS-MASTERCZ(2 members)
AS24971:AS-MAI-PEERING-CZ-PEER(10 members)
AS-EMAXSIXPEERS(39 members)
AS174:AS-COGC-033(45 members)
AS-SIXSTIP-SET(47 members)
AS8251:AS-NIX-PEERINGS(49 members)
AS-TO2-NIX-PEER(63 members)
AS-TRANSCZ(70 members)
AS42000:AS-NIXCZ-PEERINGS(80 members)
AS-LEVEL3-CUSTOMERS-EU(565 members)
AS-RETN-ACTUAL-V6(3802 members)
AS-RETN-ACTUAL-V4(12045 members)
Expanded Membership
All macros containing AS24971 (directly or via nested macros): 250
Show 100 macros
AS24971:AS-MAI-PEERING-CZ-PEER(10 ASNs)
AS24971:AS-MASTERCZ(22 ASNs)
AS24971:AS-MASTERCZ-CZNIX(22 ASNs)
AS24971:AS-MASTERCZ-CZPEERING(22 ASNs)
AS24971:AS-MASTERCZ-SKNIX(22 ASNs)
AS-EMAXSIXPEERS(39 ASNs)
AS174:AS-COGC-033(45 ASNs)
AS-SIXSTIP-SET(47 ASNs)
AS8251:AS-NIX-PEERINGS(49 ASNs)
AS-TO2-NIX-PEER(63 ASNs)
AS42000:AS-NIXCZ-PEERINGS(80 ASNs)
AS-TRANSCZ(261 ASNs)
AS-GTSCZ(388 ASNs)
AS-SLOVAK(406 ASNs)
AS-LEVEL3-CUSTOMERS-EU(565 ASNs)
AS-GTS-CE(1,469 ASNs)
AS-LEVEL3-CUSTOMERS(1,493 ASNs)
AS174:AS-COGENT(1,618 ASNs)
AS-RETN-ACTUAL-V6(3,802 ASNs)
AS-RETN-ACTUAL-V4(12,045 ASNs)
AS-INTEROUTE(43,471 ASNs)
AS-RETN6(44,950 ASNs)
AS-TELIANETRU-V6(45,288 ASNs)
AS1299:AS-TWELVE99-RU-V6(45,288 ASNs)
AS-RETN(47,667 ASNs)
AS-NIXSK-RSCLIENTS(55,989 ASNs)
AS47627:AS-NIXSK-RSCLIENTS(56,033 ASNs)
AS-BIX-V6(56,058 ASNs)
AS-TELIANETRU(56,840 ASNs)
AS1299:AS-TWELVE99-RU-V4(56,840 ASNs)
AS-PLIX6(60,222 ASNs)
AS-SET-INEX-RS(60,298 ASNs)
AS-BCIX-RS(61,123 ASNs)
AS16374:AS-BCIX-RS(61,123 ASNs)
AS-SOVAM-V6(64,052 ASNs)
AS-SOVAM6(64,052 ASNs)
AS-PANTEL(65,191 ASNs)
AS-TTI(65,191 ASNs)
AS5405:AS-INTERDOTLINK(66,620 ASNs)
AS-STUTTGARTIX-RS(66,636 ASNs)
AS-CW6(66,853 ASNs)
AS1273:AS-CWW-V6(66,853 ASNs)
AS201561:AS-DECIX-CPH(66,988 ASNs)
AS201561:AS-DECIX-CPH-V6(66,988 ASNs)
AS-SET-INEX-CONNECTED(67,097 ASNs)
AS-CW(67,352 ASNs)
AS-SIXSK-SETS(67,561 ASNs)
AS-BIX(68,877 ASNs)
AS2914:AS-ASIA-V6(68,905 ASNs)
AS-SEABONECUSTEU(69,169 ASNs)
AS-FRYS-IX-CONNECTED(69,468 ASNs)
AS-BIX-BG(69,751 ASNs)
AS-NETIX-INT(69,913 ASNs)
AS43380:AS-DTEL-IX(69,913 ASNs)
AS-KIVIX(69,914 ASNs)
AS52055:AS-NETIX-GR(69,958 ASNs)
AS-SIX(70,009 ASNs)
AS-UBNIX(70,042 ASNs)
AS-GLOBAL-IX(70,222 ASNs)
AS-EPIX-LOCAL(70,298 ASNs)
AS-EPIX(70,299 ASNs)
AS-C4LPEERS(70,320 ASNs)
AS56584:AS-SET-INTERIX-RS(70,331 ASNs)
AS17645:AS-NTTS(70,764 ASNs)
AS17645:AS-NTTS-IP(70,764 ASNs)
AS2914:AS-ASIA(70,764 ASNs)
AS-NETIX-NET(71,038 ASNs)
AS-IU-CL(71,146 ASNs)
AS-TSUA-PARITY(71,146 ASNs)
AS-UAIX(71,146 ASNs)
AS-UDC2UTEL(71,146 ASNs)
AS25229:AS-PARITY(71,150 ASNs)
AS-KIKE(71,185 ASNs)
AS21011:AS-PEERS-UA(71,230 ASNs)
AS21011:AS-UA(71,230 ASNs)
AS56584:AS-INTERIX(71,301 ASNs)
AS-SEABONE(71,409 ASNs)
AS3320:AS-DTAG-V6(71,426 ASNs)
AS-ROMANIA(71,783 ASNs)
AS-DECIX-MAD(71,930 ASNs)
AS48793:AS-DECIX-MAD(71,930 ASNs)
AS-SIXSK-SETS-V6(71,982 ASNs)
AS-INTERLANRO(72,156 ASNs)
AS43289:AS-PEERS(72,157 ASNs)
AS-PEERINGCZ-RS(72,214 ASNs)
AS-DECIX-PMO-V6(72,294 ASNs)
AS25083:AS-DECIX-PMO-V6(72,294 ASNs)
AS-DECIX-PMO(72,297 ASNs)
AS25083:AS-DECIX-PMO(72,297 ASNs)
AS29535:AS-TPIX(72,365 ASNs)
AS-DTAG(72,392 ASNs)
AS3320:AS-DTAG(72,392 ASNs)
AS-DECIX-DUS(73,592 ASNs)
AS56890:AS-DECIX-DUS(73,592 ASNs)
AS2914:AS-EUROPE-V6(73,647 ASNs)
AS-EBONE(73,672 ASNs)
AS-ST1-UPSTREAMS(73,733 ASNs)
AS-DECIX-HAM(73,753 ASNs)
AS-WORKIX(73,753 ASNs)
AS43252:AS-DECIX-HAM(73,753 ASNs)
... and 150 more
Upstream AS Paths
22 unique paths, avg length 1.7
AS Looking Glass
Upstream paths (matching graph above)
All 22 Upstream Paths
Complete list of all observed paths
AS24971 IPv4 Address Subnets (33)
| 77.93.192.0/19 | 🇨🇿 CZ | MASTER-NET-4 | MASTER-AS |
| 83.167.224.0/19 | 🇨🇿 CZ | MASTER-NET-5 | MASTER-AS |
| 89.185.224.0/19 | 🇨🇿 CZ | MASTER-NET-3 | MASTER-AS |
| 178.238.32.0/20 | 🇨🇿 CZ | CZ-MASTER-20100712 | MASTER-AS |
| 80.79.16.0/20 | 🇨🇿 CZ | MASTER-NET-2 | MASTER-AS |
| 81.31.32.0/20 | 🇨🇿 CZ | MASTER-NET-1 | MASTER-AS |
| 149.62.144.0/21 | 🇨🇿 CZ | CZ-MASTER-20110725 | MASTER-AS |
| 85.118.128.0/21 | 🇨🇿 CZ | CZ-MASTER-20120312 | MASTER-AS |
| 185.145.160.0/22 | 🇨🇿 CZ | CZ-ETNETERA-20160401 | MASTER-AS |
| 185.239.216.0/22 | 🇨🇿 CZ | CZ-ADMINIT-20180105 | MASTER-AS |
AS24971 IPv6 Address Subnets (13)
| 2001:678:a50::/48 | 🇨🇿 CZ | RU-AVANTEL-20190403 | MASTER-AS |
| 2001:67c:68::/48 | 🇨🇿 CZ | IINFO-1-IPV6-MAI-CZ | MASTER-AS |
| 2a00:8220::/32 | 🇨🇿 CZ | CZ-NETIO-20130508 | MASTER-AS |
| 2a00:a5a0::/32 | 🇨🇿 CZ | CZ-ANAFRA-20130624 | MASTER-AS |
| 2a01:430::/32 | 🇨🇿 CZ | MASTER-IPV6-1-MAI-CZ | MASTER-AS |
| 2a03:3b40::/40 | 🇨🇿 CZ | VPSFREE-IPV6-PRG2 | MASTER-AS |
| 2a03:3b40:100::/40 | 🇨🇿 CZ | VPSFREE-IPV6-BRQ2 | MASTER-AS |
| 2a03:3b40:200::/39 | 🇨🇿 CZ | VPSFREE-IPV6-TUNNELS | MASTER-AS |
| 2a03:7460::/32 | 🇨🇿 CZ | CZ-SN-20150126 | MASTER-AS |
| 2a04:16c0:200::/48 | 🇨🇿 CZ | Verotel Merchant Services B.V. | MASTER-AS |