AS399665 ZOLL Medical Corporation

ZOLL-BROOMFIELD - ZOLL Medical Corporation · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#17,740largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#78,679of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS399665 in ASN lookup Look up an IP in this network (198.99.238.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

198.99.238.0/24

Other ASNs named ZOLL Medical Corporation

2 other networks use the same organisation name; together with AS399665 they announce 768 IPv4 addresses.

ASNNameIPv4 addresses

AS19712ZOLL-CHELM - ZOLL Medical Corporation US256

AS401349ZOLL-LIFEVEST - ZOLL Medical Corporation US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS399653#17737 CCAA-AS-2021 - Charleston County Aviation Authority256

AS399661#17738 INJ-LLC - INJ LLC256

AS399664#17739 EIS-ASN-01 - Eclipse Integrated Systems, Inc256

AS399669#17741 FR-CORP-USS-SURF - Forest River, Inc.256

AS399681#17742 SARNOVA-DC-ASN01 - SARNOVA, INC.256

AS399684#17743 OVA-SUMMIT - SL Green Realty Corp256

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