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Autonomous System

AS56550

Stel S.r.l.

Announced IPs
12,800
CIDR prefixes
18
ASN
AS56550

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.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 20-50Gbps
Geographic scope Europe
Traffic ratio Mostly Inbound
Peering policy Open
IRR record RIPE::AS-STEL

Present at 5 internet exchanges: MIX-IT, Namex Rome: VLAN Peering, VSIX: Primary, MIX Bologna, SSIX

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS56550 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
93.115.62.0/23 11,718 2026-09-02 01:02:33
128.0.122.0/23 11,466 2026-09-02 01:02:33
188.241.154.0/24 11,434 2026-09-02 01:02:33
109.230.212.0/24 11,390 2026-09-02 01:02:33
185.8.24.0/22 11,368 2026-09-02 01:02:33
128.0.124.0/22 11,363 2026-09-02 01:02:33
185.163.172.0/22 11,358 2026-09-02 01:02:33
89.33.133.0/24 11,351 2026-09-02 01:02:33
94.177.127.0/24 11,351 2026-09-02 01:02:33
93.117.152.0/23 11,293 2026-09-02 01:02:33
185.157.52.0/22 11,279 2026-09-02 01:02:33
95.142.208.0/21 11,270 2026-09-02 01:02:33
31.177.40.0/21 11,054 2026-09-02 01:02:33
31.214.153.0/24 11,042 2026-09-02 01:02:33
89.32.186.0/23 10,999 2026-09-02 01:02:33
93.117.172.0/23 10,993 2026-09-02 01:02:33
31.14.28.0/24 10,926 2026-09-02 01:02:33
46.102.188.0/23 10,793 2026-09-02 01:02:33
185.196.48.0/22 399 2026-08-13 10:47:08

Frequently Asked Questions

What is AS56550?

AS56550 is an Autonomous System Number assigned to Stel S.r.l.. 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 AS56550 announce?

AS56550 announces 12.8K IPv4 addresses distributed across 18 routed CIDR prefixes. The network is registered in Italy.

Who operates AS56550?

AS56550 is operated by Stel S.r.l.. The organization is based in Italy. You can view all IP ranges and related ASNs on the organization page.

What country is AS56550 registered in?

AS56550 is registered in Italy. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-02 01:09:06 UTC
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