AS24971
Masterdc S.R.O. — master.cz
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Summary
| Country |
 Czechia
|
| Organization | Masterdc S.R.O. |
| Domain | master.cz |
| Number of IPv4 | 58,880 |
| Number of IPv6 | 1.6650× 1030 |
| AS Type | Hosting |
| Registry | RIPE NCC |
| Allocated | June 11, 2002 (about 23 years ago) |
| Updated | November 04, 2024 (about 11 months ago) |
IP Ranges
AS24971 announces 33 IPv4 ranges and 13 IPv6 ranges.
That's a total of 58,880 IPv4 addresses and 1.6650× 1030 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 5.180.200.0/22 |
Rozhled.cz Webhosting
|
1,024 | RIPE NCC | ASSIGNED PA |
| 37.140.220.0/24 |
profisms-1
|
256 | RIPE NCC | ASSIGNED PA |
| 37.205.8.0/22 |
Vpsfree.cz - Prague4
|
1,024 | RIPE NCC | ASSIGNED PA |
| 37.205.12.0/22 |
VPSFREE-PRG6
|
1,024 | RIPE NCC | ASSIGNED PA |
| 77.93.192.0/19 |
Master Internet S.R.O.
|
8,192 | RIPE NCC | ASSIGNED PA |
| 80.79.16.0/20 |
Master Internet S.R.O.
|
4,096 | RIPE NCC | ASSIGNED PA |
| 81.31.32.0/20 |
Master Internet S.R.O.
|
4,096 | RIPE NCC | ASSIGNED PA |
| 83.167.224.0/19 |
Masterdc S.R.O.
|
8,192 | RIPE NCC | ASSIGNED PA |
| 83.223.52.0/24 |
 VITS-PROXY-NETWORK
|
256 | RIPE NCC | ASSIGNED PA |
| 85.118.128.0/21 |
Seonet Multimedia S.R.O.
|
2,048 | RIPE NCC | ASSIGNED PA |
| 89.185.224.0/19 |
Masterdc S.R.O.
|
8,192 | RIPE NCC | ASSIGNED PA |
| 91.213.160.0/24 |
Internet Info, S.R.O.
|
256 | RIPE NCC | ASSIGNED PI |
| 91.214.192.0/22 |
Qcm, S.R.O.
|
1,024 | RIPE NCC | ASSIGNED PI |
| 91.216.179.0/24 |
Oxyshop S.R.O.
|
256 | RIPE NCC | ASSIGNED PI |
| 91.226.216.0/22 |
W Hosting, S.R.O.
|
1,024 | RIPE NCC | ASSIGNED PI |
| 92.63.56.0/24 |
Axfone S.R.O.
|
256 | RIPE NCC | ASSIGNED PA |
| 130.193.16.0/24 |
Bnv Technologies, S.R.O.
|
256 | RIPE NCC | ASSIGNED PA |
| 149.62.144.0/21 |
Masterdc S.R.O.
|
2,048 | RIPE NCC | ALLOCATED PA |
| 176.227.168.0/23 |
Hostingsolutions S.R.O.
|
512 | RIPE NCC | ASSIGNED PA |
| 178.238.32.0/20 |
Masterdc S.R.O.
|
4,096 | RIPE NCC | ALLOCATED PA |
| 185.8.164.0/23 |
Vpsfree.cz, Z.S.
|
512 | RIPE NCC | ASSIGNED PA |
| 185.8.166.0/23 |
Vpsfree.cz - Brno3
|
512 | RIPE NCC | ASSIGNED PA |
| 185.25.184.0/22 |
Netio Solutions S.R.O.
|
1,024 | RIPE NCC | ASSIGNED PA |
| 185.32.160.0/22 |
ANAFRA-185-1
|
1,024 | RIPE NCC | ASSIGNED PA |
| 185.58.40.0/22 |
Master Internet S.R.O.
|
1,024 | RIPE NCC | ASSIGNED PA |
| 185.85.164.0/22 |
Master Internet S.R.O.
|
1,024 | RIPE NCC | ASSIGNED PA |
| 185.145.160.0/22 |
Etnetera Core A.S.
|
1,024 | RIPE NCC | ASSIGNED PA |
| 185.239.216.0/22 |
Adminit, S. R. O.
|
1,024 | RIPE NCC | ALLOCATED PA |
| 188.213.234.0/23 |
Netio Solutions S.R.O.
|
512 | RIPE NCC | ASSIGNED PA |
| 188.215.18.0/23 |
Netio Solutions S.R.O.
|
512 | RIPE NCC | ASSIGNED PA |
| 193.169.160.0/23 |
Imarto Inc.
|
512 | RIPE NCC | ASSIGNED PI |
| 194.145.180.0/22 |
Servernow S.R.O.
|
1,024 | RIPE NCC | ASSIGNED PI |
| 195.140.252.0/22 |
Virtualmaster, S.R.O.
|
1,024 | RIPE NCC | ASSIGNED PI |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2001:678:a50::/48 |
Imarto Inc.
|
1.2089× 1024 | RIPE NCC | ASSIGNED PI |
| 2001:67c:68::/48 |
Internet Info, S.R.O.
|
1.2089× 1024 | RIPE NCC | ASSIGNED PI |
| 2a00:8220::/32 |
Netio Solutions S.R.O.
|
7.9228× 1028 | RIPE NCC | ASSIGNED |
| 2a00:a5a0::/32 |
ANAFRA-6-CU0
|
7.9228× 1028 | RIPE NCC | ASSIGNED |
| 2a01:430::/32 |
Masterdc S.R.O.
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a03:3b40::/40 |
Vpsfree.cz - Ipv6 - Prague 2
|
3.0949× 1026 | RIPE NCC | AGGREGATED-BY-LIR |
| 2a03:3b40:100::/40 |
Vpsfree.cz - Ipv6 - Brno 2
|
3.0949× 1026 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a03:3b40:200::/39 |
VPSFREE-IPV6-TUNNELS
|
6.1897× 1026 | RIPE NCC | AGGREGATED-BY-LIR |
| 2a03:7460::/32 |
Servernow S.R.O.
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-RIR |
| 2a04:16c0:200::/48 |
NL-BITSAFE-002
|
1.2089× 1024 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a07:4880::/29 |
Etnetera Core A.S.
|
6.3383× 1029 | RIPE NCC | ALLOCATED-BY-RIR |
| 2a0b:3240::/32 |
rozhled-ipv6-0
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0c:6380::/29 |
Adminit, S. R. O.
|
6.3383× 1029 | RIPE NCC | ALLOCATED-BY-RIR |
Peers
AS24971 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.
Upstreams
AS24971 connects to the global Internet via at least 3 upstream providers. In this setup, AS24971 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS24971 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS24971's role in extending Internet access beyond its own infrastructure.