AS21969 Firstsource Advantage LLC

FSA-AMH-AS01 - Firstsource Advantage LLC · registered in the United States

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in United States#10,997largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#50,294of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS21969 in ASN lookup Look up an IP in this network (63.149.40.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

63.149.40.0/24
72.237.220.0/24

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AS21982#11000 PRDCA-ASN - Panasonic R & D Company of America512

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