Autonomous System
AS44546 ALFA TELECOM s.r.o.
ISPActiveCzechiaRIPE
AS44546 (ALFATELECOM-AS) is an ISP network operated by ALFA TELECOM s.r.o. in Czechia, registered with RIPE. It has 14 IPv4 prefixes with 527,616 addresses, which makes it the 663rd largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses527,616in 14 prefixes
IPv6 prefixes0none
Size rank#663of 82,200 active ASNs
Details
OrganizationALFA TELECOM s.r.o.
AS nameALFATELECOM-AS
Websitealfatelecom.cz
Country Czechia (CZ)
Network typeISP
RegistryRIPE
Abuse contactabuse@alfatelecom.cz
Registered2008-02-05
Last updated2026-04-14
IPv4 prefixes
14 prefixes · 527,616 addresses| Network | Addresses | First – last address |
|---|---|---|
| 93.170.0.0/15 | 131,072 | 93.170.0.0 – 93.171.255.255 |
| 95.46.0.0/15 | 131,072 | 95.46.0.0 – 95.47.255.255 |
| 31.148.0.0/16 | 65,536 | 31.148.0.0 – 31.148.255.255 |
| 146.120.0.0/16 | 65,536 | 146.120.0.0 – 146.120.255.255 |
| 92.38.0.0/17 | 32,768 | 92.38.0.0 – 92.38.127.255 |
| 92.253.128.0/17 | 32,768 | 92.253.128.0 – 92.253.255.255 |
| 146.158.0.0/17 | 32,768 | 146.158.0.0 – 146.158.127.255 |
| 151.249.128.0/17 | 32,768 | 151.249.128.0 – 151.249.255.255 |
| 91.201.20.0/22 | 1,024 | 91.201.20.0 – 91.201.23.255 |
| 185.67.252.0/22 | 1,024 | 185.67.252.0 – 185.67.255.255 |
| 195.178.4.0/23 | 512 | 195.178.4.0 – 195.178.5.255 |
| 31.148.242.0/24 | 256 | 31.148.242.0 – 31.148.242.255 |
| 93.170.98.0/24 | 256 | 93.170.98.0 – 93.170.98.255 |
| 95.46.122.0/24 | 256 | 95.46.122.0 – 95.46.122.255 |
93.170.0.0/15 95.46.0.0/15 31.148.0.0/16 146.120.0.0/16 92.38.0.0/17 92.253.128.0/17 146.158.0.0/17 151.249.128.0/17 91.201.20.0/22 185.67.252.0/22 195.178.4.0/23 31.148.242.0/24 93.170.98.0/24 95.46.122.0/24
IPv6 prefixes
No IPv6 prefixes.
Query AS44546 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=AS44546&key=YOUR_API_KEY"Any address in its prefixes resolves to AS44546, with or without a key:
curl "https://api.ipapi.is/?q=93.170.0.1"Largest networks in Czechia
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