Autonomous System
AS39184 UltraNET Ltd
ISPActiveBulgariaRIPE
AS39184 (UltraNET-AS) is an ISP network operated by UltraNET Ltd in Bulgaria, registered with RIPE. It has 195 IPv4 prefixes with 75,776 addresses, which makes it the 2,799th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses75,776in 195 prefixes
IPv6 prefixes0none
Size rank#2,799of 82,200 active ASNs
Details
OrganizationUltraNET Ltd
AS nameUltraNET-AS
Websiteultranet.biz
Country Bulgaria (BG)
Network typeISP
RegistryRIPE
Abuse contactabuse@ultranet.biz
Registered2005-12-29
Last updated2026-04-20
IPv4 prefixes
195 prefixes · 75,776 addresses| Network | Addresses | First – last address |
|---|---|---|
| 77.77.0.0/18 | 16,384 | 77.77.0.0 – 77.77.63.255 |
| 77.76.32.0/19 | 8,192 | 77.76.32.0 – 77.76.63.255 |
| 45.65.68.0/22 | 1,024 | 45.65.68.0 – 45.65.71.255 |
| 45.67.88.0/22 | 1,024 | 45.67.88.0 – 45.67.91.255 |
| 85.95.86.0/23 | 512 | 85.95.86.0 – 85.95.87.255 |
| 5.133.92.0/24 | 256 | 5.133.92.0 – 5.133.92.255 |
| 5.133.93.0/24 | 256 | 5.133.93.0 – 5.133.93.255 |
| 5.133.94.0/24 | 256 | 5.133.94.0 – 5.133.94.255 |
| 5.133.95.0/24 | 256 | 5.133.95.0 – 5.133.95.255 |
| 5.181.28.0/24 | 256 | 5.181.28.0 – 5.181.28.255 |
| 5.181.29.0/24 | 256 | 5.181.29.0 – 5.181.29.255 |
| 5.181.30.0/24 | 256 | 5.181.30.0 – 5.181.30.255 |
| 5.181.31.0/24 | 256 | 5.181.31.0 – 5.181.31.255 |
| 5.183.228.0/24 | 256 | 5.183.228.0 – 5.183.228.255 |
| 5.183.229.0/24 | 256 | 5.183.229.0 – 5.183.229.255 |
| 5.183.230.0/24 | 256 | 5.183.230.0 – 5.183.230.255 |
| 5.183.231.0/24 | 256 | 5.183.231.0 – 5.183.231.255 |
| 45.65.68.0/24 | 256 | 45.65.68.0 – 45.65.68.255 |
| 45.65.69.0/24 | 256 | 45.65.69.0 – 45.65.69.255 |
| 45.65.70.0/24 | 256 | 45.65.70.0 – 45.65.70.255 |
| 45.65.71.0/24 | 256 | 45.65.71.0 – 45.65.71.255 |
| 45.67.88.0/24 | 256 | 45.67.88.0 – 45.67.88.255 |
| 45.67.89.0/24 | 256 | 45.67.89.0 – 45.67.89.255 |
| 45.67.90.0/24 | 256 | 45.67.90.0 – 45.67.90.255 |
| 45.67.91.0/24 | 256 | 45.67.91.0 – 45.67.91.255 |
77.77.0.0/18 77.76.32.0/19 45.65.68.0/22 45.67.88.0/22 85.95.86.0/23 5.133.92.0/24 5.133.93.0/24 5.133.94.0/24 5.133.95.0/24 5.181.28.0/24 5.181.29.0/24 5.181.30.0/24 5.181.31.0/24 5.183.228.0/24 5.183.229.0/24 5.183.230.0/24 5.183.231.0/24 45.65.68.0/24 45.65.69.0/24 45.65.70.0/24 45.65.71.0/24 45.67.88.0/24 45.67.89.0/24 45.67.90.0/24 45.67.91.0/24
The 25 largest of 195. The API and the database have all of them.
IPv6 prefixes
No IPv6 prefixes.
Query AS39184 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=AS39184&key=YOUR_API_KEY"Any address in its prefixes resolves to AS39184, with or without a key:
curl "https://api.ipapi.is/?q=77.77.0.1"