AS398331 1st Financial Bank USA

1FBUSA-PROD - 1st Financial Bank USA · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#17,474largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#78,377of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS398331 in ASN lookup Look up an IP in this network (63.151.52.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

63.151.52.0/24

Other ASNs named 1st Financial Bank USA

1 other network uses the same organisation name; together with AS398331 they announce 512 IPv4 addresses.

ASNNameIPv4 addresses

AS201661FBUSA-1 - 1st Financial Bank USA US256

Similar-sized networks in United States

ASNNameIPv4 addresses

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AS398316#17473 SCTDC - SC TECHNOLOGY SERVICES LLC256

AS398332#17475 PPFULLWAN1 - Professional Plastics256

AS398334#17476 VOCINITY - Tekvizion PVS, Inc.256

AS398336#17477 MODERN-WOODMEN-OF-AMERICA - Modern Woodmen of America256

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