AS29711#11227 CENTURA-HEALTH - Centura Health Corporation512
AS29721#11228 CSHS-ELSEGUNDO - Cedars-Sinai Health Systems512
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