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Autonomous System

AS20836

CDLAN SpA

Announced IPs
26,112
CIDR prefixes
19
ASN
AS20836

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 NSP
Traffic level 10-20Gbps
Geographic scope Europe
Traffic ratio Balanced
Peering policy Open
IRR record AS-CDLAN

Present at 3 internet exchanges: MIX-IT, TOP-IX: Public Peering VLAN, MINAP Milan: MINAP

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
95.157.64.0/19 8.2K
25.2%
CDLAN SpA IT Lombardy Milan
95.157.112.0/20 4.1K
0.0%
CDLAN SpA IT
217.171.32.0/20 4.1K
54.9%
CDLAN SpA IT Lombardy Pavia
95.157.104.0/21 2.0K
0.0%
CDLAN SpA IT
178.249.184.0/21 2.0K
5.5%
CDLAN SpA IT Lombardy Milan
95.157.100.0/22 1.0K
0.0%
CDLAN SpA IT
185.47.228.0/22 1.0K
72.9%
CDLAN SpA IT
95.157.98.0/23 512
0.0%
CDLAN SpA IT
185.164.176.0/23 512
6.4%
CDLAN SpA IT
5.253.198.0/24 256
16.8%
CDLAN SpA IT
37.220.41.0/24 256
2.3%
CDLAN SpA IT
37.220.42.0/24 256
3.9%
CDLAN SpA IT
91.142.143.0/24 256
0.0%
CDLAN SpA IT
95.157.97.0/24 256
0.0%
CDLAN SpA IT
185.43.151.0/24 256
0.0%
CDLAN SpA IT Lombardy Milan
185.112.90.0/24 256
0.0%
CDLAN SpA IT
185.142.120.0/24 256
22.7%
CDLAN SpA IT
193.234.181.0/24 256
6.6%
CDLAN SpA SE
193.235.114.0/24 256
0.0%
CDLAN SpA SE

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS20836 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
37.220.41.0/24 79,659 2026-09-13 03:39:13
5.253.198.0/24 26,316 2026-09-13 03:39:38
95.157.64.0/19 23,862 2026-09-13 03:40:57
95.157.96.0/19 23,816 2026-09-13 03:40:57
178.249.184.0/21 22,787 2026-09-13 03:40:57
178.249.189.0/24 22,739 2026-09-13 03:40:57
185.47.228.0/22 22,647 2026-09-13 03:40:57
185.142.120.0/24 22,485 2026-09-13 03:40:57
185.43.151.0/24 22,418 2026-09-13 03:40:35
193.235.114.0/24 21,693 2026-09-13 03:42:43
37.220.42.0/24 21,539 2026-09-13 03:39:13
185.112.90.0/24 21,070 2026-09-13 03:40:20
217.171.32.0/20 20,925 2026-09-13 03:42:29
91.142.143.0/24 20,211 2026-09-13 03:41:31
185.164.176.0/23 18,809 2026-09-13 03:40:35
193.234.181.0/24 18,050 2026-09-13 03:42:27

Frequently Asked Questions

What is AS20836?

AS20836 is an Autonomous System Number assigned to CDLAN SpA. 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 AS20836 announce?

AS20836 announces 26.1K IPv4 addresses distributed across 19 routed CIDR prefixes. The network is registered in Italy.

Who operates AS20836?

AS20836 is operated by CDLAN SpA. The organization is based in Italy. You can view all IP ranges and related ASNs on the organization page.

What country is AS20836 registered in?

AS20836 is registered in Italy. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-13 03:55:57 UTC
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