AS11881 CNA National Warranty Corporation

CNANDC-01 - CNA National Warranty Corporation · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#13,842largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#63,353of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS11881 in ASN lookup Look up an IP in this network (209.203.100.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

209.203.100.0/24

Other ASNs named CNA National Warranty Corporation

1 other network uses the same organisation name; together with AS11881 they announce 512 IPv4 addresses.

ASNNameIPv4 addresses

AS22669CNANHQ-01 - CNA National Warranty Corporation US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS11852#13839 WHCC - White House Custom Colour, Inc256

AS11860#13840 AEGIS-INSURANCE-SERVICES-INC - AEGIS Insurance Services, Inc.256

AS11874#13841 COLUMBUSREGIONALHOSPIAL - Columbus Regional Hospital256

AS11884#13843 IWPBGP - Insteel Industries, Inc.256

AS11891#13844 COSL-ASN-01 - City of San Leandro256

AS11895#13845 KOFAX - Kofax, 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