AS36856 Mozilla Corporation

MOZILLA-MDC1 - Mozilla Corporation · registered in the United States

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in United States#10,324largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#47,952of 79,396 networks with IPv4

IPv63 x /482 prefixes

CountryUnited States18,679 ASNs registered there

Open AS36856 in ASN lookup Look up an IP in this network (63.245.208.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

63.245.208.0/23

IPv6 prefixes

All 2 prefixes.

2620:101:8030::/47
2620:101:80f8::/48

Other ASNs named Mozilla Corporation

1 other network uses the same organisation name; together with AS36856 they announce 768 IPv4 addresses.

ASNNameIPv4 addresses

AS395642MOZILLA-TOR1 - Mozilla Corporation US256

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IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources