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
- Active-threat / abuse risk −12
- Trust score 53 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About Enel
Enel S.p.A. is an Italian multinational producer and distributor of electricity and gas.
⚠ 1 MOAS prefix — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS12551 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 146.133.127.0/24 | AS12551, AS16509 | 2026-09-11 14:55:56 |
Network profile
Source: PeeringDB →Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS12551 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 |
|---|---|---|
| 158.47.6.0/24 | 330,133 | 2026-09-11 20:16:35 |
| 146.133.29.0/24 | 38,749 | 2026-09-11 19:20:20 |
| 146.133.19.0/24 | 32,288 | 2026-09-11 20:19:55 |
| 146.133.128.0/24 | 30,138 | 2026-09-11 20:19:55 |
| 146.133.96.0/24 | 30,095 | 2026-09-11 20:19:55 |
| 146.133.1.0/24 | 30,095 | 2026-09-11 20:19:55 |
| 146.133.7.0/24 | 28,294 | 2026-09-11 19:20:20 |
| 146.133.68.0/24 | 28,225 | 2026-09-11 19:20:20 |
| 146.133.13.0/24 | 28,153 | 2026-09-11 19:20:20 |
| 146.133.12.0/24 | 28,132 | 2026-09-11 19:20:20 |
| 158.47.3.0/24 | 27,222 | 2026-09-11 20:19:55 |
| 158.47.2.0/24 | 25,287 | 2026-09-11 20:04:40 |
| 146.133.64.0/19 | 25,100 | 2026-09-11 20:19:55 |
| 146.133.96.0/20 | 25,044 | 2026-09-11 20:19:55 |
| 146.133.0.0/18 | 25,025 | 2026-09-11 20:19:55 |
| 146.133.126.0/24 | 24,077 | 2026-09-11 19:29:04 |
| 146.133.120.0/22 | 24,074 | 2026-09-11 19:29:04 |
| 146.133.125.0/24 | 24,043 | 2026-09-11 19:29:04 |
| 146.133.112.0/21 | 24,033 | 2026-09-11 19:29:04 |
| 158.47.0.0/24 | 23,969 | 2026-09-11 19:26:01 |
| 146.133.128.0/19 | 13,458 | 2026-09-11 19:20:20 |
| 146.133.240.0/24 | 13,355 | 2026-09-11 19:20:20 |
| 146.133.159.0/24 | 13,326 | 2026-09-11 19:20:20 |
| 158.47.7.0/24 | 13,178 | 2026-09-11 19:20:45 |
| 158.47.8.0/24 | 12,085 | 2026-09-11 19:29:04 |
| 158.47.9.0/24 | 11,779 | 2026-09-11 20:17:00 |
| 158.47.14.0/23 | 11,691 | 2026-09-11 19:29:04 |
| 158.47.64.0/18 | 11,661 | 2026-09-11 19:29:04 |
| 158.47.32.0/19 | 11,640 | 2026-09-11 19:29:04 |
| 158.47.16.0/20 | 11,636 | 2026-09-11 19:29:04 |
| 158.47.8.0/23 | 11,116 | 2026-09-11 19:29:04 |
| 158.47.4.0/24 | 7,696 | 2026-09-11 20:18:54 |
| 158.47.1.0/24 | 6,447 | 2026-09-11 20:18:48 |
| 146.133.127.0/24 | 696 | 2026-09-11 15:08:30 |
| 187.33.13.96/29 | 20 | 2026-09-11 05:39:47 |
Frequently Asked Questions
What is AS12551?
AS12551 is an Autonomous System Number assigned to ENEL 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 AS12551 announce?
AS12551 announces 72.2K IPv4 addresses distributed across 18 routed CIDR prefixes. The network is registered in Italy.
Who operates AS12551?
AS12551 is operated by ENEL 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 AS12551 registered in?
AS12551 is registered in Italy. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
