AS27381 — CASALE-MEDIA

Network type: hosting

AS27381 announces 14 IPv4 prefixes covering 12,544 addresses and 5 IPv6 prefixes.

About this network

The AS handle CASALE-MEDIA is operated by Index Exchange Inc., a global digital advertising exchange.

What it's used for

• The address space carries corporate infrastructure for an ad-tech platform, evidenced by netnames such as CASAL, CASALE-MEDIA, and INDEXEXCHANGEINC-AP.
• The AS announces 12,544 IPv4 addresses and 5 IPv6 prefixes across 14 IPv4 blocks, with 10 observed neighbours; this ratio indicates a business network with moderate peering rather than a transit provider.

Notable

• Registrants consistently identify as Index Exchange Inc. across most prefixes, though one /24 (8.36.162.0/24) is registered to Level 3 Parent, LLC.
• The operator was formerly known as Casale Media, a name still reflected in the AS handle and several netnames like CA-CASALEMEDIA-20041116.
• The inventory includes a mix of large blocks (e.g., 209.204.224.0/20) and smaller /24s, with announced blocks located in Canada.

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

Announced prefixes

• 8.36.162.0/24
• 23.90.68.0/24
• 75.119.185.0/24
• 85.91.44.0/22
• 103.55.112.0/24
• 103.104.50.0/24
• 110.44.7.0/24
• 139.5.84.0/22
• 170.76.128.0/23
• 185.80.36.0/22
• 185.170.60.0/22
• 192.40.32.0/21
• 192.139.80.0/24
• 209.204.224.0/20
• 2620:12b:5002::/48
• 2620:12b:5005::/48
• 2620:12b:5006::/48
• 2a05:79c0:1::/48
• 2a05:79c0:2::/48

Upstream networks

• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS3257 GTT Communications Inc.
• AS6939 Hurricane Electric LLC
• AS8220 COLT Technology Services Group Limited
• AS2914 NTT America, Inc.
• AS4637 Telstra Global
• AS577 Bell Canada
• AS3758 SingNet

Adjacent networks

• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS3257 GTT Communications Inc.
• AS6939 Hurricane Electric LLC
• AS8220 COLT Technology Services Group Limited
• AS2914 NTT America, Inc.
• AS4637 Telstra Global
• AS577 Bell Canada
• AS3758 SingNet

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• AMS-IX Amsterdam — Amsterdam, Netherlands
• Equinix Internet Exchange Singapore — Singapore, Singapore
• Equinix Internet Exchange Ashburn — Ashburn, United States
• Equinix Internet Exchange San Jose (Bay Area) — San Jose, United States
• Equinix Internet Exchange New York — New York, United States
• Equinix Internet Exchange Los Angeles — Los Angeles, United States
• Equinix Los Angeles IBX — Los Angeles, United States
• Equinix IBX Secaucus — Secaucus, United States