AS20701 CZ.NIC z.s.p.o.

General Info - AS20701

CZ.NIC z.s.p.o.

Czechia

nic.cz

768

9,223,372,036,854,775,808

IP Address Ranges

Netblock Number of IPs   
5.187.34.0/24 256
185.43.135.0/24 256
193.17.47.0/24 256
Netblock Number of IPs   
2001:1489::/32 79,228,162,514,264,337,593,543,950,336
2001:148a::/31 158,456,325,028,528,675,187,087,900,672
2001:148c::/31 158,456,325,028,528,675,187,087,900,672
2001:148e::/32 79,228,162,514,264,337,593,543,950,336
2001:148f::/33 39,614,081,257,132,168,796,771,975,168
2001:148f:8000::/34 19,807,040,628,566,084,398,385,987,584
2001:148f:c000::/35 9,903,520,314,283,042,199,192,993,792
2001:148f:e000::/36 4,951,760,157,141,521,099,596,496,896
2001:148f:f000::/37 2,475,880,078,570,760,549,798,248,448
2001:148f:f800::/38 1,237,940,039,285,380,274,899,124,224
2001:148f:fc00::/39 618,970,019,642,690,137,449,562,112
2001:148f:fe00::/40 309,485,009,821,345,068,724,781,056
2001:148f:ff00::/41 154,742,504,910,672,534,362,390,528
2001:148f:ff80::/42 77,371,252,455,336,267,181,195,264
2001:148f:ffc0::/43 38,685,626,227,668,133,590,597,632
2001:148f:ffe0::/44 19,342,813,113,834,066,795,298,816
2001:148f:fff0::/45 9,671,406,556,917,033,397,649,408
2001:148f:fff8::/47 2,417,851,639,229,258,349,412,352
2001:148f:fffa::/48 1,208,925,819,614,629,174,706,176
2001:148f:fffe::/47 2,417,851,639,229,258,349,412,352

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Downstreams

There are no downstreams for this ASN.

What is an Autonomous System (AS)?

An Autonomous System (AS) is a collection of connected networks that operate under a common administrative domain and share routing policies. Each AS is identified by a unique Autonomous System Number (ASN), which is used to exchange routing information with other ASs. AS can control how traffic flows through networks and then filter out unwanted traffic.

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