AS398403 Alarm Detection Systems, Inc

SSI - Alarm Detection Systems, Inc · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#17,494largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#78,398of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS398403 in ASN lookup Look up an IP in this network (204.235.123.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

204.235.123.0/24

Other ASNs named Alarm Detection Systems, Inc

1 other network uses the same organisation name; together with AS398403 they announce 768 IPv4 addresses.

ASNNameIPv4 addresses

AS46459ADSALARM - Alarm Detection Systems, Inc US512

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ASNNameIPv4 addresses

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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