AS54327 MONTANA WEST, L.L.C.

MTWEST - MONTANA WEST, L.L.C. · registered in the United States

IPv4 addresses6,9129 prefixes · <0.001% of announced IPv4

Rank in United States#3,617largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#11,657of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryUnited States18,679 ASNs registered there

Open AS54327 in ASN lookup Look up an IP in this network (162.219.72.1) All networks in United States

IPv4 prefixes

All 9 prefixes, in address order.

162.219.72.0/22
192.30.116.0/22
204.62.201.0/24
204.62.204.0/23
206.183.112.0/21
206.183.120.0/22
206.183.124.0/24
206.183.125.0/24
206.183.126.0/23

IPv6 prefixes

All 1 prefix.

2606:cf00::/32

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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