AS20836 — CDLAN-AS Milano

Network type: hosting

AS20836 announces 19 IPv4 prefixes covering 26,112 addresses and 4 IPv6 prefixes.

About this network

CDLAN-AS is operated by CDLAN SpA, an Italian internet service provider.

What it's used for

• The address space carries residential and business access traffic, evidenced by reverse DNS entries such as ip0-36.dialup.cdlan.net and wireless-uffici-static-254.cdlan.net.
• The AS announces 26,112 IPv4 addresses across 21 prefixes and 4 IPv6 prefixes, while maintaining 59 observed neighbours; this ratio of address space to peering partners is characteristic of an access network providing last-mile connectivity.

Notable

• Registrants for the majority of prefixes are consistent with the announcer, listing CDLAN SpA and CDLAN LIR CONTACT for netnames like IT-ISPCDLAN-20090401 and IT-ISPCDLAN-20010330.
• The address inventory is finely subdivided into multiple /22, /23, and /24 blocks, indicating a segmented internal estate rather than a single large contiguous allocation.
• Two prefixes show different registrants: 185.164.176.0/23 is registered to Abuse-C Role with netname overweb-c21, and 5.253.198.0/24 is registered to Altea 365 S.r.l. with netname IT-LAKEWEB-20190211.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 5.253.198.0/24
• 37.220.41.0/24
• 37.220.42.0/24
• 91.142.143.0/24
• 95.157.64.0/19
• 95.157.97.0/24
• 95.157.98.0/23
• 95.157.100.0/22
• 95.157.104.0/21
• 95.157.112.0/20
• 178.249.184.0/21
• 185.43.151.0/24
• 185.47.228.0/22
• 185.112.90.0/24
• 185.142.120.0/24
• 185.164.176.0/23
• 193.234.181.0/24
• 193.235.114.0/24
• 217.171.32.0/20
• 2001:b60::/31
• 2a07:2840::/32
• 2a07:2847::/32
• 2a0a:ec00::/32

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS1299 Arelion Sweden AB
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS3303 Swisscom (Schweiz) AG
• AS24482 SG.GS
• AS31543 myNet GmbH
• AS174 Cogent Communications, LLC
• AS57463 NetIX Communications JSC
• AS59919 Brainbox S.r.l.
• AS29632 Netassist International EOOD
• AS13030 Init7 (Switzerland) Ltd.

Downstream networks

• AS34971 CDLAN SpA
• AS42692 Overweb Srl
• AS199321 Intesys Networking Srl
• AS202095 RCS MediaGroup S.p.a.
• AS211740 WISE DIALOG BANK SPA
• AS49431 KPMG BUSINESS SERVICES SRL
• AS44473 S.T. S.r.l.
• AS13160 EMMELIBRI S.R.L.
• AS44567 Technology Transfer Intercontinental S.R.L
• AS202889 ST WI-net Srl

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS34971 CDLAN SpA
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS42692 Overweb Srl
• AS199321 Intesys Networking Srl
• AS202095 RCS MediaGroup S.p.a.
• AS3303 Swisscom (Schweiz) AG
• AS211740 WISE DIALOG BANK SPA
• AS44473 S.T. S.r.l.
• AS49431 KPMG BUSINESS SERVICES SRL
• AS13160 EMMELIBRI S.R.L.
• AS44567 Technology Transfer Intercontinental S.R.L
• AS24482 SG.GS
• AS31543 myNet GmbH
• AS174 Cogent Communications, LLC
• AS59919 Brainbox S.r.l.
• AS57463 NetIX Communications JSC
• AS202889 ST WI-net Srl
• AS29632 Netassist International EOOD
• AS13030 Init7 (Switzerland) Ltd.
• AS24961 WIIT AG

Internet exchanges

• Milan Internet Exchange — Milan, Italy
• Torino Piemonte Exchange Point — Torino, Italy
• Milan Neutral Access Point — Milan, Italy