Autonomous System
AS25515 PJSC Rostelecom
ISPActiveRussiaRIPE
AS25515 (CTCNET-AS) is an ISP network operated by PJSC Rostelecom in Russia, registered with RIPE. It has 20 IPv4 prefixes with 249,856 addresses and 1 IPv6 prefix, which makes it the 1,108th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses249,856in 20 prefixes
IPv6 prefixes1≈ 1.2 × 10²⁴ addresses
Size rank#1,108of 82,200 active ASNs
Details
OrganizationPJSC Rostelecom
AS nameCTCNET-AS
Websiterostelecom.ru
Country Russia (RU)
Network typeISP
RegistryRIPE
Abuse contactabuse@rt.ru
Registered2002-12-18
Last updated2026-05-25
IPv4 prefixes
20 prefixes · 249,856 addresses| Network | Addresses | First – last address |
|---|---|---|
| 95.72.0.0/15 | 131,072 | 95.72.0.0 – 95.73.255.255 |
| 77.51.0.0/16 | 65,536 | 77.51.0.0 – 77.51.255.255 |
| 89.109.192.0/18 | 16,384 | 89.109.192.0 – 89.109.255.255 |
| 85.94.0.0/19 | 8,192 | 85.94.0.0 – 85.94.31.255 |
| 213.140.224.0/19 | 8,192 | 213.140.224.0 – 213.140.255.255 |
| 77.51.176.0/21 | 2,048 | 77.51.176.0 – 77.51.183.255 |
| 77.51.184.0/21 | 2,048 | 77.51.184.0 – 77.51.191.255 |
| 77.51.192.0/21 | 2,048 | 77.51.192.0 – 77.51.199.255 |
| 77.51.200.0/21 | 2,048 | 77.51.200.0 – 77.51.207.255 |
| 77.51.208.0/21 | 2,048 | 77.51.208.0 – 77.51.215.255 |
| 77.51.216.0/21 | 2,048 | 77.51.216.0 – 77.51.223.255 |
| 77.51.224.0/21 | 2,048 | 77.51.224.0 – 77.51.231.255 |
| 90.154.120.0/21 | 2,048 | 90.154.120.0 – 90.154.127.255 |
| 217.107.96.0/21 | 2,048 | 217.107.96.0 – 217.107.103.255 |
| 185.141.236.0/23 | 512 | 185.141.236.0 – 185.141.237.255 |
| 217.107.104.0/23 | 512 | 217.107.104.0 – 217.107.105.255 |
| 91.188.223.0/24 | 256 | 91.188.223.0 – 91.188.223.255 |
| 146.19.98.0/24 | 256 | 146.19.98.0 – 146.19.98.255 |
| 185.202.109.0/24 | 256 | 185.202.109.0 – 185.202.109.255 |
| 193.3.188.0/24 | 256 | 193.3.188.0 – 193.3.188.255 |
95.72.0.0/15 77.51.0.0/16 89.109.192.0/18 85.94.0.0/19 213.140.224.0/19 77.51.176.0/21 77.51.184.0/21 77.51.192.0/21 77.51.200.0/21 77.51.208.0/21 77.51.216.0/21 77.51.224.0/21 90.154.120.0/21 217.107.96.0/21 185.141.236.0/23 217.107.104.0/23 91.188.223.0/24 146.19.98.0/24 185.202.109.0/24 193.3.188.0/24
IPv6 prefixes
1 prefix- 2a00:56c0:40d::/48
2a00:56c0:40d::/48
Query AS25515 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=AS25515&key=YOUR_API_KEY"Any address in its prefixes resolves to AS25515, with or without a key:
curl "https://api.ipapi.is/?q=95.72.0.1"Other networks of PJSC Rostelecom
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