AS19574 Corporation Service Company

CSC - Corporation Service Company · registered in the United States

IPv4 addresses3,3283 prefixes · <0.001% of announced IPv4

Rank in United States#5,155largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#17,585of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS19574 in ASN lookup Look up an IP in this network (165.160.12.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

165.160.12.0/22
165.160.16.0/24
165.160.32.0/21

IPv6 prefixes

All 1 prefix.

2620:8a::/48

Other ASNs named Corporation Service Company

1 other network uses the same organisation name; together with AS19574 they announce 3,584 IPv4 addresses.

ASNNameIPv4 addresses

AS32691CSC - Corporation Service Company US256

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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