AS43500 — WBD-AS HBO Europe s.r.o.

Network type: hosting

AS43500 announces 4 IPv4 prefixes covering 2,048 addresses and 4 IPv6 prefixes.

About this network

WBD-AS is the autonomous system for Warner Bros. Discovery, operated through its Czech entity HBO Europe s.r.o.

What it's used for

• The address space carries corporate and content delivery infrastructure, evidenced by netnames WBD-157-166, WBD, and CZ-HBOEUROPE-20220228, with registrants including Turner Broadcasting System, Inc. and Warner Bros. Discovery.
• The AS announces 2048 IPv4 addresses and 5 IPv6 prefixes across 4 IPv4 and 9 total prefixes, while maintaining 47 observed neighbours, indicating a role focused on content distribution and peering rather than residential access.
• Traffic from this AS consists of web and API endpoints for streaming services, media content delivery, and internal corporate backhaul for Warner Bros. Discovery's global operations.

Notable

• Registrants align with the announcer, listing Turner Broadcasting System, Inc. for legacy prefixes and Warner Bros. Discovery or HBO Europe s.r.o. for current holdings.
• The address inventory is finely subdivided into small /24 and /23 blocks, reflecting an internal corporate estate segmented by function or site rather than a large consumer base.
• The AS was first seen in routing tables in 2007, predating the recent corporate mergers that formed Warner Bros. Discovery.

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

Announced prefixes

• 157.166.64.0/23
• 157.166.68.0/22
• 185.130.208.0/24
• 212.46.44.0/24
• 2a12:b40::/46
• 2a12:b40:30::/47
• 2a12:b40:40::/47
• 2a12:b40:ffff::/48

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS9002 RETN Limited
• AS37721 Virtual Technologies & Solutions
• AS7575 Australian Academic and Research Network (AARNet)
• AS17639 Converge ICT Solutions Inc.
• AS33891 Core-Backbone GmbH
• AS14907 Wikimedia Foundation Inc.
• AS293 ESnet

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS9002 RETN Limited
• AS37721 Virtual Technologies & Solutions
• AS33891 Core-Backbone GmbH
• AS7575 Australian Academic and Research Network (AARNet)
• AS17639 Converge ICT Solutions Inc.
• AS14907 Wikimedia Foundation Inc.
• AS293 ESnet

Routing security

• RPKI: 16 valid, 0 invalid and 0 not-found announcements; 6 ROAs.
• ASPA: 2 authorised providers.
• IRR: 100% of announcements registered; 64 route objects.
• Listed in as-sets: AS-KQROTERRA, AS-WTSTELECOM, AS210788:AS-CLIST, AS43500:AS-WBD, AS43500:AS-WBD, AS63221:AS-FL-IX-CONNECTED.

Internet exchanges

• IX.br (PTT.br) São Paulo — São Paulo, Brazil
• Coresite - Any2 West — Los Angeles, United States
• Any2 California — Los Angeles, United States
• Equinix Internet Exchange Dallas — Dallas, United States
• FL-IX - The Florida Internet Exchange / Community IX - Florida — Miami, United States
• Budapest Internet Exchange — Budapest, Hungary