Autonomous System
AS21283 A1 Slovenija telekomunikacijske storitve,d.d.
ISPActiveSloveniaRIPE
AS21283 (A1SI-AS) is an ISP network operated by A1 Slovenija telekomunikacijske storitve,d.d. in Slovenia, registered with RIPE. It has 18 IPv4 prefixes with 329,728 addresses and 2 IPv6 prefixes, which makes it the 894th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses329,728in 18 prefixes
IPv6 prefixes2≈ 7.1 × 10²⁹ addresses
Size rank#894of 82,200 active ASNs
Details
OrganizationA1 Slovenija telekomunikacijske storitve,d.d.
AS nameA1SI-AS
Websitea1.si
Country Slovenia (SI)
Network typeISP
RegistryRIPE
Abuse contactabuse@a1.si
Registered2002-09-20
Last updated2026-06-11
IPv4 prefixes
18 prefixes · 329,728 addresses| Network | Addresses | First – last address |
|---|---|---|
| 46.122.0.0/15 | 131,072 | 46.122.0.0 – 46.123.255.255 |
| 146.212.0.0/16 | 65,536 | 146.212.0.0 – 146.212.255.255 |
| 90.157.128.0/17 | 32,768 | 90.157.128.0 – 90.157.255.255 |
| 92.37.0.0/17 | 32,768 | 92.37.0.0 – 92.37.127.255 |
| 46.164.0.0/18 | 16,384 | 46.164.0.0 – 46.164.63.255 |
| 85.10.0.0/19 | 8,192 | 85.10.0.0 – 85.10.31.255 |
| 212.18.32.0/19 | 8,192 | 212.18.32.0 – 212.18.63.255 |
| 213.157.224.0/19 | 8,192 | 213.157.224.0 – 213.157.255.255 |
| 62.84.224.0/20 | 4,096 | 62.84.224.0 – 62.84.239.255 |
| 80.95.224.0/20 | 4,096 | 80.95.224.0 – 80.95.239.255 |
| 85.10.32.0/20 | 4,096 | 85.10.32.0 – 85.10.47.255 |
| 109.239.176.0/20 | 4,096 | 109.239.176.0 – 109.239.191.255 |
| 46.122.64.0/21 | 2,048 | 46.122.64.0 – 46.122.71.255 |
| 46.122.96.0/21 | 2,048 | 46.122.96.0 – 46.122.103.255 |
| 94.127.24.0/21 | 2,048 | 94.127.24.0 – 94.127.31.255 |
| 188.64.24.0/21 | 2,048 | 188.64.24.0 – 188.64.31.255 |
| 185.28.8.0/22 | 1,024 | 185.28.8.0 – 185.28.11.255 |
| 185.173.52.0/22 | 1,024 | 185.173.52.0 – 185.173.55.255 |
46.122.0.0/15 146.212.0.0/16 90.157.128.0/17 92.37.0.0/17 46.164.0.0/18 85.10.0.0/19 212.18.32.0/19 213.157.224.0/19 62.84.224.0/20 80.95.224.0/20 85.10.32.0/20 109.239.176.0/20 46.122.64.0/21 46.122.96.0/21 94.127.24.0/21 188.64.24.0/21 185.28.8.0/22 185.173.52.0/22
IPv6 prefixes
2 prefixes- 2001:15c0::/29
- 2a00:1a20::/32
2001:15c0::/29 2a00:1a20::/32
Query AS21283 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=AS21283&key=YOUR_API_KEY"Any address in its prefixes resolves to AS21283, with or without a key:
curl "https://api.ipapi.is/?q=46.122.0.1"