AS42037 — Mozilla-Berlin Mozilla Corporation

AS42037 announces 1 IPv4 prefixes covering 256 addresses and 1 IPv6 prefixes.

About this network

MOZILLA-BERLIN is operated by Mozilla Corporation.

What it's used for

• The space carries corporate infrastructure, indicated by the netname MOZILLA-DE-1 and the registrant MZ Denmark GmbH.
• The AS announces 256 IPv4 addresses and 1 IPv6 prefix, with only 2 observed neighbours, indicating a small, self-contained internal network rather than a transit or access provider.
• Traffic from this AS consists of internal corporate endpoints and services for Mozilla's operations, distinct from the consumer-facing Firefox browser traffic which is not hosted here.

Notable

• The registrant MZ Denmark GmbH differs from the AS holder Mozilla Corporation, reflecting Mozilla's corporate structure where specific legal entities manage regional infrastructure.
• The address inventory is minimal, consisting of a single /24 block and a single /48 prefix, consistent with a dedicated corporate estate rather than a large-scale service provider.

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

Announced prefixes

• 185.155.182.0/24
• 2a00:8c40:238::/48

Upstream networks

• AS15695 Expereo International BV
• AS13237 euNetworks GmbH

Adjacent networks

• AS15695 Expereo International BV
• AS13237 euNetworks GmbH

Routing security

• RPKI: 2 valid, 0 invalid and 0 not-found announcements; 4 ROAs.
• ASPA: 2 authorised providers.
• IRR: 100% of announcements registered; 10 route objects.
• Listed in as-sets: AS-EUNDE, AS-EXPEREO, AS-MOZILLA-BER, AS13030:AS-PEERS.