AS399140 Red Hat, Inc.

SINGAPORE-DC - Red Hat, Inc. · registered in the United States

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in United States#10,469largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#49,427of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS399140 in ASN lookup Look up an IP in this network (209.132.187.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

209.132.187.0/24
209.132.188.0/24

IPv6 prefixes

All 1 prefix.

2620:52:10::/48

Other ASNs named Red Hat, Inc.

5 other networks use the same organisation name; together with AS399140 they announce 10,752 IPv4 addresses.

ASNNameIPv4 addresses

AS22753REDHAT-0 - Red Hat, Inc. US5,888

AS21785REDHAT-3 - Red Hat, Inc. US2,304

AS22360REDHAT-2 - Red Hat, Inc. US1,024

AS40955REDHAT-DC-BOS2 - Red Hat, Inc. US768

AS31976REDHAT-0 - Red Hat, Inc. US256

Similar-sized networks in United States

ASNNameIPv4 addresses

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AS398017#10467 RTBHOUSE-PHX - RTB House Inc.512

AS398862#10468 AMBULATORYCLAM - AMBULATORY CLAM NETWORK512

AS399281#10470 GMS-US-ATL - ITRON INC.512

AS399809#10471 LAER-AS-FRA1 - UnitedLayer, LLC512

AS400242#10472 SIEMENS-EDC-MIF - Siemens Corporation512

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