AS27142#395 DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD)155,904
AS1767#396 ILIGHT-NET - Indiana Higher Education Telecommunication System (IHETS)155,126
AS195#398 SDSC-AS - San Diego Supercomputer Center154,447
AS14041#399 AS-FRGP - University Corporation for Atmospheric Research153,600
AS399#400 AFCONC-BLOCK1-AS - Air Force Systems Networking153,600
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