AS401544#18099 JMA-1 - John Mayes and Associates256
AS401546#18100 HCDL-ASHBURN-DATA-CENTER - H5 Data Centers256
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