Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 9 internet exchanges: TIX, Namex Rome: VLAN Peering, MIX-IT, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, VSIX: Primary, AMS-IX, LINX LON1: Main, France-IX Paris, DE-CIX Marseille: DE-CIX Marseille Peering LAN
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS21056 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 45.151.64.0/22 | 37,131 | 2026-09-11 17:41:04 |
| 83.137.56.0/21 | 36,679 | 2026-09-11 17:41:01 |
| 87.247.232.0/21 | 36,599 | 2026-09-11 17:41:01 |
| 103.43.232.0/22 | 35,982 | 2026-09-11 17:41:01 |
| 91.201.104.0/24 | 35,873 | 2026-09-11 17:41:45 |
| 103.26.124.0/22 | 35,873 | 2026-09-11 17:41:01 |
| 91.242.230.0/24 | 35,651 | 2026-09-11 17:42:33 |
| 87.247.239.0/24 | 33,620 | 2026-09-11 17:19:36 |
| 94.138.160.0/19 | 30,697 | 2026-09-11 17:48:37 |
| 46.44.192.0/18 | 30,327 | 2026-09-11 17:47:38 |
| 79.135.32.0/19 | 30,323 | 2026-09-11 17:47:52 |
| 45.151.12.0/22 | 30,321 | 2026-09-11 17:47:38 |
| 109.122.208.0/21 | 30,311 | 2026-09-11 17:48:43 |
| 103.61.184.0/22 | 30,297 | 2026-09-11 17:48:43 |
| 80.93.128.0/20 | 30,285 | 2026-09-11 17:47:52 |
| 78.152.96.0/19 | 30,249 | 2026-09-11 17:47:48 |
| 103.248.184.0/22 | 30,211 | 2026-09-11 17:48:43 |
| 91.143.192.0/20 | 30,133 | 2026-09-11 17:48:48 |
| 144.48.192.0/22 | 29,573 | 2026-09-11 17:48:43 |
| 45.143.36.0/22 | 29,286 | 2026-09-11 17:47:36 |
| 45.84.140.0/22 | 29,230 | 2026-09-11 17:47:36 |
| 185.241.20.0/22 | 28,573 | 2026-09-11 17:49:15 |
| 185.125.64.0/22 | 28,358 | 2026-09-11 17:49:15 |
| 185.97.219.0/24 | 28,220 | 2026-09-11 17:49:15 |
| 185.97.218.0/24 | 28,209 | 2026-09-11 17:49:15 |
| 185.97.216.0/24 | 28,190 | 2026-09-11 17:49:15 |
| 185.97.217.0/24 | 28,174 | 2026-09-11 17:49:15 |
| 188.240.32.0/22 | 28,141 | 2026-09-11 17:49:15 |
| 79.108.136.0/21 | 24,946 | 2026-09-11 17:47:48 |
| 185.170.36.0/22 | 22,263 | 2026-09-11 17:41:04 |
| 185.224.60.0/22 | 21,976 | 2026-09-11 17:41:04 |
| 185.234.164.0/22 | 21,887 | 2026-09-11 17:41:04 |
| 185.231.160.0/22 | 21,868 | 2026-09-11 17:41:04 |
| 185.224.104.0/22 | 21,865 | 2026-09-11 17:41:04 |
| 185.158.116.0/22 | 21,860 | 2026-09-11 17:41:04 |
| 185.230.92.0/22 | 21,791 | 2026-09-11 17:41:04 |
| 193.124.240.0/22 | 21,779 | 2026-09-11 17:41:01 |
| 185.230.232.0/22 | 21,779 | 2026-09-11 17:41:04 |
| 185.230.192.0/22 | 21,777 | 2026-09-11 17:41:04 |
| 194.58.216.0/22 | 21,643 | 2026-09-11 17:41:01 |
| 213.182.64.0/19 | 21,641 | 2026-09-11 17:41:01 |
| 80.93.143.0/24 | 7,560 | 2026-09-10 21:46:25 |
| 185.170.39.0/24 | 3,737 | 2026-07-13 06:46:18 |
Frequently Asked Questions
What is AS21056?
AS21056 is an Autonomous System Number assigned to Vianova S.p.A. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS21056 announce?
AS21056 announces 90.6K IPv4 addresses distributed across 37 routed CIDR prefixes. The network is registered in Italy.
Who operates AS21056?
AS21056 is operated by Vianova S.p.A. The organization is based in Italy. You can view all IP ranges and related ASNs on the organization page.
What country is AS21056 registered in?
AS21056 is registered in Italy. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
