Autonomous System
AS197394 CJSC Telecommunications 21
ISPActiveRussiaRIPE
AS197394 (Telecommunications21century) is an ISP network operated by CJSC Telecommunications 21 in Russia, registered with RIPE. It has 18 IPv4 prefixes with 11,008 addresses, which makes it the 9,701st largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses11,008in 18 prefixes
IPv6 prefixes0none
Size rank#9,701of 82,200 active ASNs
Details
OrganizationCJSC Telecommunications 21
AS nameTelecommunications21century
Websitet21v.ru
Country Russia (RU)
Network typeISP
RegistryRIPE
Abuse contactabuse@t21v.ru
Registered2010-11-15
Last updated2024-09-24
IPv4 prefixes
18 prefixes · 11,008 addresses| Network | Addresses | First – last address |
|---|---|---|
| 91.245.48.0/20 | 4,096 | 91.245.48.0 – 91.245.63.255 |
| 91.245.40.0/21 | 2,048 | 91.245.40.0 – 91.245.47.255 |
| 91.245.36.0/22 | 1,024 | 91.245.36.0 – 91.245.39.255 |
| 91.245.33.0/24 | 256 | 91.245.33.0 – 91.245.33.255 |
| 91.245.34.0/24 | 256 | 91.245.34.0 – 91.245.34.255 |
| 91.245.35.0/24 | 256 | 91.245.35.0 – 91.245.35.255 |
| 91.245.37.0/24 | 256 | 91.245.37.0 – 91.245.37.255 |
| 91.245.38.0/24 | 256 | 91.245.38.0 – 91.245.38.255 |
| 91.245.39.0/24 | 256 | 91.245.39.0 – 91.245.39.255 |
| 91.245.40.0/24 | 256 | 91.245.40.0 – 91.245.40.255 |
| 91.245.41.0/24 | 256 | 91.245.41.0 – 91.245.41.255 |
| 91.245.42.0/24 | 256 | 91.245.42.0 – 91.245.42.255 |
| 91.245.43.0/24 | 256 | 91.245.43.0 – 91.245.43.255 |
| 91.245.44.0/24 | 256 | 91.245.44.0 – 91.245.44.255 |
| 91.245.45.0/24 | 256 | 91.245.45.0 – 91.245.45.255 |
| 91.245.46.0/24 | 256 | 91.245.46.0 – 91.245.46.255 |
| 91.245.47.0/24 | 256 | 91.245.47.0 – 91.245.47.255 |
| 91.245.48.0/24 | 256 | 91.245.48.0 – 91.245.48.255 |
91.245.48.0/20 91.245.40.0/21 91.245.36.0/22 91.245.33.0/24 91.245.34.0/24 91.245.35.0/24 91.245.37.0/24 91.245.38.0/24 91.245.39.0/24 91.245.40.0/24 91.245.41.0/24 91.245.42.0/24 91.245.43.0/24 91.245.44.0/24 91.245.45.0/24 91.245.46.0/24 91.245.47.0/24 91.245.48.0/24
IPv6 prefixes
No IPv6 prefixes.
Query AS197394 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=AS197394&key=YOUR_API_KEY"Any address in its prefixes resolves to AS197394, with or without a key:
curl "https://api.ipapi.is/?q=91.245.48.1"