AS16640 First-Citizens Bank & Trust Company

SILICON-VALLEY-BANK - First-Citizens Bank & Trust Company · registered in the United States

IPv4 addresses2,3046 prefixes · <0.001% of announced IPv4

Rank in United States#5,876largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#20,863of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS16640 in ASN lookup Look up an IP in this network (192.173.26.1) All networks in United States

IPv4 prefixes

All 6 prefixes, in address order.

192.173.26.0/23
198.212.183.0/24
199.246.77.0/24
199.246.78.0/23
208.80.232.0/23
208.80.235.0/24

Other ASNs named First-Citizens Bank & Trust Company

2 other networks use the same organisation name; together with AS16640 they announce 12,800 IPv4 addresses.

ASNNameIPv4 addresses

AS22976FIRST-CITIZENS-01 - First-Citizens Bank & Trust Company US10,240

AS54366FCB-ASN-54366-AP - First-Citizens Bank & Trust Company US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS15205#5873 NCPDAS - Nassau County Police Department2,304

AS15215#5874 FARMERS-NETWORK - Farmers Group, Inc.2,304

AS16581#5875 DEEPINFRA-01 - Deep Infra Inc.2,304

AS16910#5877 FARM-CREDIT - Farm Credit Financial Partners, Inc.2,304

AS17163#5878 AFGINC-1 - Great American Insurance Company2,304

AS17274#5879 RWBAIRD - Robert W. Baird & Co. Incorporated2,304

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