AS399251 Koch Industries, Inc.

KBSI-ASN - Koch Industries, Inc. · registered in the United States

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in United States#12,498largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#58,496of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS399251 in ASN lookup Look up an IP in this network (146.209.174.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

146.209.174.0/23

Other ASNs named Koch Industries, Inc.

1 other network uses the same organisation name; together with AS399251 they announce 23,296 IPv4 addresses.

ASNNameIPv4 addresses

AS19254KOCH-INDUSTRIES - Koch Industries, Inc. US22,784

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ASNNameIPv4 addresses

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AS399249#12497 DC-ASN-01 - Alabama One Credit Union512

AS399256#12499 FUSD-ASN - Fontana Unified School District512

AS399257#12500 INCOMM-NET4 - InComm512

AS399283#12501 ROBLY-MARKETING-LLC - Robly Digital Marketing LLC512

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