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