AS19121 Blattner Company

BLATTNER-HOLDING-COMPANY - Blattner Company · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#14,273largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#63,987of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS19121 in ASN lookup Look up an IP in this network (192.65.178.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

192.65.178.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS19096#14270 DESALES-NETWORK - DeSales University256

AS19104#14271 MHSC-01 - Memorial Hospital of Sweetwater County Foundation256

AS19119#14272 ROLLINSCOLLEGE - Rollins College256

AS19123#14274 OHIOTRANSMISSIONCORP - Ohio Transmission Corporation256

AS19135#14275 FRHS-ORG-ASN - FAITH REGIONAL HEALTH SERVICES256

AS19150#14276 ABCWUA-ASN - Albuquerque Bernalillo County Water Utility Authority256

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