Home ASN LookupAS43500

AS43500 WBD-AS HBO Europe s.r.o.

🇨🇿

Org handle: ORG-HES5-RIPE

Warner Bros. Discovery

RIPE NCCallocatedASPA Published

Announced Prefixes (BGP)

16total

8 IPv48 IPv6

IPv4 Addresses

Allocated (RIR)512

Announced (BGP)2,048

IPv6 Addresses

Allocated (RIR)9.6×10²⁴

Announced (BGP)9.6×10²⁴

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇨🇿 CZ

RIR

RIPE NCC

Status

allocated

Allocated

2017-02-17

Routing hygiene

Score 5/100 · Low risk

RPKI ROA coverage

100%

no RPKI invalid prefixes

IRR route objects

100%

no origin mismatches

Hijack signals

0 announced against others' ROAs, 0 own announced by others

Upstreams

diversity 46/100

All announced prefixes have a valid ROA and a matching IRR route object

Based on 16 announced prefixes, updated daily (2026-10-27). How the score works · RPKI explained

Announced Prefixes

(BGP)16

Prefix	RPKI	IRR	Last Seen
157.166.64.0/24	Valid	Other IRR	2026-10-27
157.166.65.0/24	Valid	Other IRR	2026-10-27
157.166.68.0/24	Valid	Other IRR	2026-10-27
157.166.69.0/24	Valid	Other IRR	2026-10-27
157.166.70.0/24	Valid	Other IRR	2026-10-27
157.166.71.0/24	Valid	Other IRR	2026-10-27
185.130.208.0/24	Valid	Other IRRRIPE	2026-10-27
212.46.44.0/24	Valid	Other IRRRIPE	2026-10-27
2a12:b40::/48	Valid	Other IRRRIPE	2026-10-27
2a12:b40:1::/48	Valid	Other IRRRIPE	2026-10-27

1-10 of 16

1 / 2

Allocated Prefixes

(RIR)10

Prefix	Country	RIR	Status
185.130.208.0/24	🇨🇿 CZ	RIPENCC	allocated
212.46.44.0/24	🇨🇿 CZ	RIPENCC	allocated
2a12:b40::/48	🇭🇺 HU	RIPE	assigned
2a12:b40:1::/48	🇺🇸 US	RIPE	assigned
2a12:b40:2::/48	🇺🇸 US	RIPE	assigned
2a12:b40:30::/48	🇧🇷 BR	RIPE	assigned
2a12:b40:31::/48	🇧🇷 BR	RIPE	assigned
2a12:b40:40::/48	🇺🇸 US	RIPE	assigned
2a12:b40:41::/48	🇺🇸 US	RIPE	assigned
2a12:b40:ffff::/48	🇭🇺 HU	RIPE	assigned

All 16 announced prefixes of AS43500 →

Upstream Providers(2)

ASN	Name
AS174	🇺🇸COGENT-174 - Cogent Communications, LLC
AS3356	🇺🇸LEVEL3 - Level 3 Parent, LLC

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS43500 hands its own prefixes to: transit providers, or peers at an exchange.

AS3356Level 3 Parent12
AS174Cogent Communications4

Transfer History

Registry transfers of AS43500 between organisations.

AS43500Transfer · 2022-02-15
HBO ROMANIA SRL
RIPE NCC
→
HBO Europe s.r.o.
RIPE NCC

Date	Resource	From	To	Type
2022-02-15	AS43500	HBO ROMANIA SRL RIPE NCC	HBO Europe s.r.o. RIPE NCC	Transfer

ASPA

Published2 upstreams, 0 downstreams

Authorized Upstream Providers

AS174 AS3356

Expires 2026-10-28

View full ASPA details →

Abuse Contact

External Links

RIPE Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
How to run an ASPA checkVerify the upstream providers listed above
IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/43500

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/43500" | jq