$ query “AS11924” --type=asn → 1 result(s)

AS11924 · MONTANA-OPTICOM

Montana Opticom LLC

AS11924 belongs to Montana Opticom LLC and is a residential access provider, registered in the United States since 2007. The system announces a respectable 16 384 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in the United States.

Basic Information

Country
🇺🇸 United States
Category
Internet Service Provider
Network Role
Access Provider
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
March 06, 2007
Last Changed
October 01, 2026
Last Seen
October 10, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
44 / 10
IPv6 Prefixes (raw / aggregated)
1 / 1
IPv4 Addresses
16 384
Largest IPv4 Prefix
/20 (4 096 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇺🇸 United States (16 384 IPs)
Prefix Changed
September 30, 2026

Reputation

Reputation
Pristine — 0 flagged IPs

Connectivity Summary

Upstream Providers
4 upstreams providing transit
Peers
19 networks exchanging traffic without transit
Downstream Customers
3 downstreams buying transit
Unclassified
1 unclassified BGP neighbor
Degree
27 unique BGP neighbors
Reach
3 networks in customer cone

Upstream Providers (4)

  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS6461 — ZAYO-6461 (Tier-1 transit)
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS52025 — PARADOXNETWORKS-LIMITED

Prefix Lists

IPv4 Prefixes (44 total)

  • 64.79.32.0/20 (4 096 addresses (/20 prefix))
  • 69.163.80.0/20 (4 096 addresses (/20 prefix))
  • 204.250.80.0/21 (2 048 addresses (/21 prefix))
  • 208.83.40.0/21 (2 048 addresses (/21 prefix))
  • 63.166.28.0/22 (1 024 addresses (/22 prefix))
  • 206.228.140.0/22 (1 024 addresses (/22 prefix))
  • 208.75.140.0/22 (1 024 addresses (/22 prefix))
  • 205.243.72.0/23 (512 addresses (/23 prefix))
  • 199.2.135.0/24 (256 addresses (/24 prefix))
  • 208.14.180.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (1 total)

  • 2607:faa0::/32