AS54439 Montgomery County Government, Maryland

MCGM-FIBERNET3 - Montgomery County Government, Maryland · registered in the United States

IPv4 addresses12,80011 prefixes · <0.001% of announced IPv4

Rank in United States#2,635largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#7,993of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS54439 in ASN lookup Look up an IP in this network (192.26.21.1) All networks in United States

IPv4 prefixes

All 11 prefixes, in address order.

192.26.21.0/24
192.26.22.0/23
192.26.24.0/24
192.35.92.0/23
192.41.164.0/22
192.41.168.0/23
208.76.112.0/24
208.76.114.0/23
208.76.116.0/23
208.76.119.0/24
213.18.192.0/19

Other ASNs named Montgomery County Government, Maryland

1 other network uses the same organisation name; together with AS54439 they announce 14,336 IPv4 addresses.

ASNNameIPv4 addresses

AS40468MONTGOMERYCOUNTYMDGOV - Montgomery County Government, Maryland US1,536

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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