AS40737 EMF Inc.

EMFINC-ASN1 - EMF Inc. · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#15,592largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#66,380of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS40737 in ASN lookup Look up an IP in this network (204.19.0.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

204.19.0.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS40719#15589 AS40719 - One William Street Capital Management, L.P.256

AS40721#15590 PABMC - Pennsylvania House of Representatives BMC256

AS40734#15591 LOMBARD-ODIER-1798 - 1798 Global Partners (USA), Corp.256

AS40742#15593 WESTERN-MD-HEALTH-SYSTEM - UPMC256

AS40743#15594 CJPIA-ASN1 - California Joint Powers Insurance Authority256

AS40744#15595 MC-CDC-01 - Coors Distributing Company256

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