Autonomous System
AS24641 FASTER CZ spol. s r.o.
ISPActiveCzechiaRIPE
AS24641 (FASTER-AS) is an ISP network operated by FASTER CZ spol. s r.o. in Czechia, registered with RIPE. It has 10 IPv4 prefixes with 18,432 addresses and 2 IPv6 prefixes, which makes it the 7,178th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses18,432in 10 prefixes
IPv6 prefixes2≈ 1.6 × 10²⁹ addresses
Size rank#7,178of 82,200 active ASNs
Details
OrganizationFASTER CZ spol. s r.o.
AS nameFASTER-AS
Websitefaster.cz
Country Czechia (CZ)
Network typeISP
RegistryRIPE
Abuse contactabuse@faster.cz
Registered2002-02-01
Last updated2025-04-23
IPv4 prefixes
10 prefixes · 18,432 addresses| Network | Addresses | First – last address |
|---|---|---|
| 77.240.176.0/20 | 4,096 | 77.240.176.0 – 77.240.191.255 |
| 81.19.0.0/20 | 4,096 | 81.19.0.0 – 81.19.15.255 |
| 85.132.144.0/20 | 4,096 | 85.132.144.0 – 85.132.159.255 |
| 95.129.96.0/21 | 2,048 | 95.129.96.0 – 95.129.103.255 |
| 91.196.40.0/22 | 1,024 | 91.196.40.0 – 91.196.43.255 |
| 185.50.228.0/22 | 1,024 | 185.50.228.0 – 185.50.231.255 |
| 185.146.4.0/22 | 1,024 | 185.146.4.0 – 185.146.7.255 |
| 91.224.48.0/23 | 512 | 91.224.48.0 – 91.224.49.255 |
| 77.240.176.0/24 | 256 | 77.240.176.0 – 77.240.176.255 |
| 85.132.153.0/24 | 256 | 85.132.153.0 – 85.132.153.255 |
77.240.176.0/20 81.19.0.0/20 85.132.144.0/20 95.129.96.0/21 91.196.40.0/22 185.50.228.0/22 185.146.4.0/22 91.224.48.0/23 77.240.176.0/24 85.132.153.0/24
IPv6 prefixes
2 prefixes- 2a01:ade0::/32
- 2a02:e98::/32
2a01:ade0::/32 2a02:e98::/32
Query AS24641 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS24641&key=YOUR_API_KEY"Any address in its prefixes resolves to AS24641, with or without a key:
curl "https://api.ipapi.is/?q=77.240.176.1"Largest networks in Czechia
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