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Autonomous System

AS54439

Montgomery County Government, Maryland

Announced IPs
6,144
CIDR prefixes
14
ASN
AS54439

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

73/100
Moderate
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS54439 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
213.18.193.0/24 15,363 2026-07-18 10:52:26
192.41.166.0/24 10,827 2026-07-18 11:01:26
192.41.169.0/24 10,818 2026-07-18 11:01:26
192.41.168.0/24 10,818 2026-07-18 11:01:26
192.26.21.0/24 10,817 2026-07-18 11:01:26
192.41.167.0/24 10,811 2026-07-18 11:01:26
192.35.92.0/24 8,400 2026-07-18 10:52:26
192.35.93.0/24 8,169 2026-07-18 10:52:26
192.41.164.0/24 7,604 2026-07-18 10:52:26
213.18.197.0/24 6,884 2026-07-18 11:01:26
213.18.199.0/24 6,881 2026-07-18 11:01:26
213.18.198.0/24 6,877 2026-07-18 11:01:26
213.18.194.0/24 6,873 2026-07-18 11:01:26
213.18.200.0/24 6,871 2026-07-18 11:01:26
213.18.196.0/24 6,858 2026-07-18 11:01:26
213.18.195.0/24 6,849 2026-07-18 11:01:26
208.76.117.0/24 6,710 2026-07-18 10:52:26
208.76.115.0/24 6,652 2026-07-18 10:52:26
208.76.119.0/24 6,517 2026-07-18 10:52:26
208.76.114.0/24 6,514 2026-07-18 10:52:26
213.18.192.0/24 6,304 2026-07-18 11:01:26
208.76.116.0/24 5,886 2026-07-18 10:52:26
192.41.165.0/24 4,576 2026-07-18 10:52:26
208.76.112.0/24 3,504 2026-07-18 10:52:26

Frequently Asked Questions

What is AS54439?

AS54439 is an Autonomous System Number assigned to Montgomery County Government, Maryland. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS54439 announce?

AS54439 announces 6.1K IPv4 addresses distributed across 14 routed CIDR prefixes. The network is registered in United States.

Who operates AS54439?

AS54439 is operated by Montgomery County Government, Maryland. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS54439 registered in?

AS54439 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-18 11:40:32 UTC
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