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MasterDC s.r.o.

MasterDC s.r.o. uses 30,016 IPv4 addresses in 260 ranges, and 164 IPv6 ranges, by the registry records IP Company reads.

master.cz·Czechia

30,016
IPv4 addresses
260
IPv4 ranges
164
IPv6 ranges
1
AS it operates
2
countries

Who routes its space

The networks announcing its IPv4, by the addresses each announces.

  1. AS24971 MasterDC s.r.o.29,888 · 99.57%
  2. AS51134 Development 777 s.r.o.0 · 0.00%

Where its space is

Its IPv4 that IP Geolocation places, by country. A /24 counts for the company using most of it.

  1. Czechia35,312 · 99.95%
  2. Slovakia16 · 0.05%

Networks it operates

The autonomous systems registered under its domain, by the IPv4 each announces anywhere.

ASNNAMETYPEREGISTEREDIPV4
AS24971MasterDC s.r.o.HostingCzechia58,112

How its networks peer

Each network's peering policy, traffic, ratio and reach as its operator states them, with the internet exchanges and facilities it is at.

ASNPOLICYTRAFFICRATIOSCOPEEXCHANGESFACILITIES
AS24971OpenMostly OutboundEurope54

Internet exchanges

The internet exchanges its networks connect at, by the capacity of their ports there: 5 exchanges, 7 ports and 520 Gbps in all.

EXCHANGEWHEREPORTSCAPACITY
NIX.CZPrague, Czechia2200 Gbps
NIX.CZ FENIXPrague, Czechia2200 Gbps
Peering.czPrague, Bratislava, Vienna, Frankfurt, Czechia1100 Gbps
BR-IXBrno, Czechia110 Gbps
NIX.SKBratislava, Slovakia110 Gbps

Facilities

The datacenters and colocation sites its networks are in: 4 in one country.

FACILITYWHERE
Master DC BrnoBrno, Czechia
CE Colo PraguePrague, Czechia
GTS Telehouse PraguePrague, Czechia
Master DC PraguePrague, Czechia

What the databases see

Addresses each address-keyed database holds in its IPv4, as a share of it, with the largest providers. A /24 counts for the company using most of it; counts overlap.

Speed tests

Speeds measured from its space in the last 90 days.

From M-Lab
21.4 Mbps
median download
7.2 Mbps
median upload
34
download tests
30
upload tests

Its address ranges

Its largest IPv4 ranges, then its IPv6 ones, as IP Company draws them, a CIDR a row, with the network announcing each.

first 100 of 424 ranges
RANGEIPV4ORIGIN
91.226.216.0/221,024AS24971
80.79.18.0/23512AS24971
80.79.20.0/24256AS24971
80.79.21.0/25128AS24971
85.118.130.128/25128AS24971
85.118.131.0/24256AS24971
85.118.132.0/23512AS24971
83.167.228.224/2732AS24971
83.167.229.0/24256AS24971
83.167.230.0/23512AS24971
185.85.165.0/24256AS24971
185.85.166.0/23512AS24971
77.93.212.0/23512AS24971
77.93.214.0/24256AS24971
83.167.235.0/24256AS24971
83.167.236.0/23512AS24971
83.167.226.0-83.167.228.207720AS24971
80.79.26.128/25128AS24971
80.79.27.0/24256AS24971
80.79.28.0/24256AS24971
178.238.38.192/2664AS24971
178.238.39.0/24256AS24971
178.238.40.0/24256AS24971
89.185.247.200-89.185.249.255568AS24971
77.93.215.0-77.93.217.47560AS24971
178.238.32.0/23512AS24971
77.93.221.0/24256AS24971
77.93.222.0/24256AS24971
80.79.30.0/23512AS24971
83.167.241.0/24256AS24971
83.167.242.0/24256AS24971
89.185.244.0/23512AS24971
81.31.40.0-81.31.41.167424AS24971
83.167.251.95-83.167.252.255417AS24971
149.62.147.128/25128AS24971
149.62.148.0/24256AS24971
77.93.196.128/25128AS24971
77.93.197.0/24256AS24971
77.93.203.0/24256AS24971
77.93.204.0/25128AS24971
77.93.204.128/25128AS24971
77.93.205.0/24256AS24971
89.185.236.128/25128AS24971
89.185.237.0/24256AS24971
83.167.249.224-83.167.251.93382AS24971
185.58.42.192/2664AS24971
185.58.43.0/24256AS24971
83.167.239.0/24256AS24971
83.167.240.0/2664AS24971
83.167.246.192/2664AS24971
83.167.247.0/24256AS24971
89.185.239.224/2732AS24971
89.185.240.0/24256AS24971
89.185.251.0/24256AS24971
89.185.252.0/2732AS24971
77.93.210.0/24256AS24971
77.93.211.0/2816AS24971
89.185.252.252/304AS24971
89.185.253.0/24256AS24971
149.62.144.0/24256AS24971
149.62.146.0/24256AS24971
149.62.150.0/24256AS24971
178.238.36.0/24256AS24971
178.238.42.0/24256AS24971
178.238.46.0/24256AS24971
178.238.47.0/24256AS24971
185.58.40.0/24256AS24971
77.93.194.0/24256AS24971
77.93.207.0/24256AS24971
77.93.223.0/24256AS24971
80.79.17.0/24256AS24971
80.79.24.0/24256AS24971
83.167.224.0/24256AS24971
83.167.233.0/24256AS24971
83.167.234.0/24256AS24971
85.118.135.0/24256AS24971
89.185.227.0/24256AS24971
89.185.238.0/24256AS24971
89.185.243.0/24256AS24971
91.213.160.0/24256AS24971
83.167.243.0/25128AS24971
83.167.243.128/2664AS24971
83.167.243.192/2732AS24971
178.238.44.0/25128AS24971
178.238.44.128/2664AS24971
89.185.224.128/25128AS24971
89.185.225.0/2664AS24971
178.238.41.128/25128AS24971
195.60.89.0/25128
77.93.211.128/25128AS24971
80.79.21.128/25128AS24971
80.79.22.128/25128AS24971
81.31.32.0/25128AS24971
81.31.34.224/2732AS24971
81.31.35.0/2664AS24971
81.31.35.64/2732AS24971
81.31.44.128/25128AS24971
83.167.225.128/25128AS24971
83.167.244.128/25128AS24971
83.167.246.0/25128AS24971
83.167.254.0/25128AS24971
83.167.254.128/25128AS24971
89.185.232.0/25128AS24971
81.31.42.200-81.31.43.47104AS24971
77.93.206.0/2664AS24971
77.93.206.64/2732AS24971
77.93.209.32/2732AS24971
77.93.209.64/2664AS24971
83.167.249.64/2664AS24971
83.167.249.128/2732AS24971
81.31.37.52-81.31.37.14392AS24971
81.31.35.168/298AS24971
81.31.35.176/2816AS24971
81.31.35.192/2664AS24971
81.31.41.168/298AS24971
81.31.41.176/2816AS24971
81.31.41.192/2664AS24971
149.62.145.16/2816AS24971
149.62.145.32/2732AS24971
149.62.145.64/2732AS24971
89.185.252.144/2816AS24971
89.185.252.160/2732AS24971
89.185.252.192/2732AS24971
81.31.33.0/2664AS24971
81.31.33.64/298AS24971
178.238.37.128/2664AS24971
178.238.37.192/2664AS24971
185.85.164.0/2664AS24971
77.93.196.0/2664AS24971
77.93.201.128/2664AS24971
77.93.217.64/2664AS24971
81.31.36.80/2816AS24971
81.31.36.96/2732AS24971
81.31.36.128/2816AS24971
81.31.45.64/2664AS24971
83.167.238.64/2664AS24971
83.167.248.192/2664AS24971
83.167.253.0/2664AS24971
83.167.253.64/2664AS24971
89.185.231.0/2664AS24971
89.185.239.128/2664AS24971
89.185.252.32/2732AS24971
89.185.252.64/2732AS24971
89.185.255.192/2664AS24971
81.31.32.200/298AS24971
81.31.32.208/2816AS24971
81.31.32.224/2732AS24971
81.31.33.160/2732AS24971
81.31.33.192/2816AS24971
81.31.33.208/298AS24971
89.185.239.40/298AS24971
89.185.239.48/2816AS24971
89.185.239.64/2732AS24971
149.62.151.32/2732AS24971
149.62.151.64/2816AS24971

Names it registers under

The holder names its registry records give, by the IPv4 under each.

  1. MasterDC s.r.o.28,984 · 96.56%
  2. ServerNow s.r.o.864 · 2.88%
  3. Master Internet s.r.o.168 · 0.56%
  4. MasterInternet backbone/offices0 · 0.00%
  5. Virtualmaster, s.r.o.0 · 0.00%
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