AS3443 ESnet

ESNET-AS - ESnet · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#13,672largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#63,008of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS3443 in ASN lookup Look up an IP in this network (192.188.22.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

192.188.22.0/24

Other ASNs named ESnet

6 other networks use the same organisation name; together with AS3443 they announce 734,464 IPv4 addresses.

ASNNameIPv4 addresses

AS291ESNET-EAST - ESnet US262,144

AS292ESNET-WEST - ESnet US262,144

AS293ESNET - ESnet US140,288

AS3428ESNET-AS - ESnet US68,096

AS3431ESNET-AS - ESnet US1,024

AS3425ESNET-AS - ESnet US512

Similar-sized networks in United States

ASNNameIPv4 addresses

AS3291#13669 PSINet-Europe GTT Communications Inc.256

AS3366#13670 A2I-WEST - a2i communications256

AS3408#13671 AMC-NETWORKS - Rainbow Media Holdings LLC256

AS3459#13673 STBTC-SOUTH-TEXAS-BLOOD-AND-TISSUE-CENTER - South Texas Blood and Tissue Center256

AS3470#13674 DNIC-AS-03470 - United States Department of Defense (DoD)256

AS3472#13675 DNIC-AS-03472 - United States Department of Defense (DoD)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