AS399751 County of Rockingham

CNTYRCKHM - County of Rockingham · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#17,762largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#78,702of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS399751 in ASN lookup Look up an IP in this network (204.238.113.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

204.238.113.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS399741#17759 BN-AS-01 - BAE Networks256

AS399749#17760 AS-RTI-01 - Restaurant Technologies, Inc.256

AS399750#17761 DIG-01 - Funeral Directors Life Insurance Company256

AS399754#17763 HCHS-30 - Harlan County Health System256

AS399762#17764 BUCKEYE-CITYNET-01 - City of Buckeye256

AS399763#17765 FIVESTAR-TIERPOINT-01 - Issues Management, Inc.256

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