Autonomous System
AS51569 Fiberwide S.p.a.
ISPActiveItalyRIPE
AS51569 (FIBERING) is an ISP network operated by Fiberwide S.p.a. in Italy, registered with RIPE. It has 12 IPv4 prefixes with 17,408 addresses and 1 IPv6 prefix, which makes it the 7,473rd largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses17,408in 12 prefixes
IPv6 prefixes1≈ 6.3 × 10²⁹ addresses
Size rank#7,473of 82,200 active ASNs
Details
OrganizationFiberwide S.p.a.
AS nameFIBERING
Websitefiberwide.com
Country Italy (IT)
Network typeISP
RegistryRIPE
Abuse contactabuse@fiberwide.com
Registered2010-09-29
Last updated2026-06-19
IPv4 prefixes
12 prefixes · 17,408 addresses| Network | Addresses | First – last address |
|---|---|---|
| 46.20.80.0/20 | 4,096 | 46.20.80.0 – 46.20.95.255 |
| 83.139.224.0/20 | 4,096 | 83.139.224.0 – 83.139.239.255 |
| 85.31.160.0/21 | 2,048 | 85.31.160.0 – 85.31.167.255 |
| 45.132.208.0/22 | 1,024 | 45.132.208.0 – 45.132.211.255 |
| 83.139.212.0/22 | 1,024 | 83.139.212.0 – 83.139.215.255 |
| 83.139.216.0/22 | 1,024 | 83.139.216.0 – 83.139.219.255 |
| 185.95.136.0/22 | 1,024 | 185.95.136.0 – 185.95.139.255 |
| 185.159.52.0/22 | 1,024 | 185.159.52.0 – 185.159.55.255 |
| 83.139.202.0/23 | 512 | 83.139.202.0 – 83.139.203.255 |
| 83.139.220.0/23 | 512 | 83.139.220.0 – 83.139.221.255 |
| 83.139.242.0/23 | 512 | 83.139.242.0 – 83.139.243.255 |
| 83.139.244.0/23 | 512 | 83.139.244.0 – 83.139.245.255 |
46.20.80.0/20 83.139.224.0/20 85.31.160.0/21 45.132.208.0/22 83.139.212.0/22 83.139.216.0/22 185.95.136.0/22 185.159.52.0/22 83.139.202.0/23 83.139.220.0/23 83.139.242.0/23 83.139.244.0/23
IPv6 prefixes
1 prefix- 2a05:b580::/29
2a05:b580::/29
Query AS51569 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=AS51569&key=YOUR_API_KEY"Any address in its prefixes resolves to AS51569, with or without a key:
curl "https://api.ipapi.is/?q=46.20.80.1"