AS11924 Montana Opticom, LLC

MONTANA-OPTICOM - Montana Opticom, LLC · registered in the United States

IPv4 addresses16,38418 prefixes · <0.001% of announced IPv4

Rank in United States#2,324largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#6,888of 79,396 networks with IPv4

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

CountryUnited States18,679 ASNs registered there

Open AS11924 in ASN lookup Look up an IP in this network (63.166.28.1) All networks in United States

IPv4 prefixes

All 18 prefixes, in address order.

63.166.28.0/22
64.79.32.0/22
64.79.36.0/23
64.79.38.0/23
64.79.40.0/22
64.79.44.0/23
64.79.46.0/24
64.79.47.0/24
69.163.80.0/20
199.2.135.0/24
204.250.80.0/21
205.243.72.0/23
206.228.140.0/22
208.14.180.0/24
208.75.140.0/22
208.83.40.0/23
208.83.42.0/23
208.83.44.0/22

IPv6 prefixes

All 1 prefix.

2607:faa0::/32

Other ASNs named Montana Opticom, LLC

1 other network uses the same organisation name; together with AS11924 they announce 16,640 IPv4 addresses.

ASNNameIPv4 addresses

AS22485MONTANA-OPTICOM-AS22485 - Montana Opticom, LLC US256

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AS21981#2327 GOEASTON - Easton Utilities Commission16,384

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