IP Tracker

AS30387

National Institutes of Health

USUnknown2026-06-13

Announced prefixes 5

156.40.53.0/24156.40.98.0/23165.112.0.0/20165.112.0.0/21165.112.194.0/23

Snapshot history

DateNameCountryClassPrefixes
2026-11-12National Institutes of HealthUSUnknown12
2026-11-11National Institutes of HealthUSUnknown12
2026-11-10National Institutes of HealthUSUnknown12
2026-11-09National Institutes of HealthUSUnknown12
2026-11-08National Institutes of HealthUSUnknown12
2026-11-07National Institutes of HealthUSUnknown12
2026-11-06National Institutes of HealthUSUnknown12
2026-11-05National Institutes of HealthUSUnknown12
2026-11-04National Institutes of HealthUSUnknown12
2026-11-03National Institutes of HealthUSUnknown12
2026-11-02National Institutes of HealthUSUnknown12
2026-11-01National Institutes of HealthUSUnknown12
2026-10-31National Institutes of HealthUSUnknown12
2026-10-30National Institutes of HealthUSUnknown12
2026-10-29National Institutes of HealthUSUnknown12
2026-10-28National Institutes of HealthUSUnknown12
2026-10-27National Institutes of HealthUSUnknown12
2026-10-26National Institutes of HealthUSUnknown12
2026-10-25National Institutes of HealthUSUnknown12
2026-10-24National Institutes of HealthUSUnknown12
2026-10-23National Institutes of HealthUSUnknown12
2026-10-22National Institutes of HealthUSUnknown12
2026-10-21National Institutes of HealthUSUnknown12
2026-10-20National Institutes of HealthUSUnknown12
2026-10-19National Institutes of HealthUSUnknown12
2026-10-18National Institutes of HealthUSUnknown12
2026-10-17National Institutes of HealthUSUnknown12
2026-10-16National Institutes of HealthUSUnknown12
2026-10-15National Institutes of HealthUSUnknown12
2026-10-14National Institutes of HealthUSUnknown12
2026-10-13National Institutes of HealthUSUnknown12
2026-10-12National Institutes of HealthUSUnknown12
2026-10-11National Institutes of HealthUSUnknown12
2026-10-10National Institutes of HealthUSUnknown12
2026-10-09National Institutes of HealthUSUnknown12
2026-10-08National Institutes of HealthUSUnknown12
2026-10-07National Institutes of HealthUSUnknown12
2026-10-06National Institutes of HealthUSUnknown12
2026-10-05National Institutes of HealthUSUnknown12
2026-10-04National Institutes of HealthUSUnknown12
2026-10-03National Institutes of HealthUSUnknown12
2026-10-02National Institutes of HealthUSUnknown12
2026-10-01National Institutes of HealthUSUnknown12
2026-09-30National Institutes of HealthUSUnknown12
2026-09-29National Institutes of HealthUSUnknown12
2026-09-28National Institutes of HealthUSUnknown12
2026-09-27National Institutes of HealthUSUnknown12
2026-09-26National Institutes of HealthUSUnknown12
2026-09-25National Institutes of HealthUSUnknown12
2026-09-24National Institutes of HealthUSUnknown12
2026-09-23National Institutes of HealthUSUnknown12
2026-09-22National Institutes of HealthUSUnknown12
2026-09-21National Institutes of HealthUSUnknown12
2026-09-20National Institutes of HealthUSUnknown12
2026-09-19National Institutes of HealthUSUnknown12
2026-09-18National Institutes of HealthUSUnknown12
2026-09-17National Institutes of HealthUSUnknown12
2026-09-16National Institutes of HealthUSUnknown12
2026-09-15National Institutes of HealthUSUnknown12
2026-09-14National Institutes of HealthUSUnknown12
2026-09-13National Institutes of HealthUSUnknown12
2026-09-12National Institutes of HealthUSUnknown12
2026-09-11National Institutes of HealthUSUnknown12
2026-09-10National Institutes of HealthUSUnknown12
2026-09-09National Institutes of HealthUSUnknown12
2026-09-08National Institutes of HealthUSUnknown12
2026-09-07National Institutes of HealthUSUnknown12
2026-09-06National Institutes of HealthUSUnknown12
2026-09-05National Institutes of HealthUSUnknown12
2026-09-04National Institutes of HealthUSUnknown12
2026-09-03National Institutes of HealthUSUnknown12
2026-09-02National Institutes of HealthUSUnknown12
2026-09-01National Institutes of HealthUSUnknown12
2026-08-31National Institutes of HealthUSUnknown12
2026-08-30National Institutes of HealthUSUnknown12
2026-08-29National Institutes of HealthUSUnknown12
2026-08-28National Institutes of HealthUSUnknown12
2026-08-27National Institutes of HealthUSUnknown12
2026-08-26National Institutes of HealthUSUnknown12
2026-08-25National Institutes of HealthUSUnknown12
2026-08-24National Institutes of HealthUSUnknown12
2026-08-23National Institutes of HealthUSUnknown12
2026-08-22National Institutes of HealthUSUnknown12
2026-08-21National Institutes of HealthUSUnknown12
2026-08-20National Institutes of HealthUSUnknown12
2026-08-19National Institutes of HealthUSUnknown12
2026-08-18National Institutes of HealthUSUnknown12
2026-08-17National Institutes of HealthUSUnknown12
2026-08-16National Institutes of HealthUSUnknown12
2026-08-15National Institutes of HealthUSUnknown12
2026-08-14National Institutes of HealthUSUnknown12
2026-08-13National Institutes of HealthUSUnknown12
2026-08-12National Institutes of HealthUSUnknown12
2026-08-11National Institutes of HealthUSUnknown12
2026-08-10National Institutes of HealthUSUnknown12
2026-08-09National Institutes of HealthUSUnknown12
2026-08-08National Institutes of HealthUSUnknown12
2026-08-07National Institutes of HealthUSUnknown12
2026-08-06National Institutes of HealthUSUnknown12
2026-08-05National Institutes of HealthUSUnknown12
2026-08-04National Institutes of HealthUSUnknown12
2026-08-03National Institutes of HealthUSUnknown12
2026-08-02National Institutes of HealthUSUnknown12
2026-08-01National Institutes of HealthUSUnknown12
2026-07-31National Institutes of HealthUSUnknown12
2026-07-30National Institutes of HealthUSUnknown12
2026-07-29National Institutes of HealthUSUnknown12
2026-07-28National Institutes of HealthUSUnknown12
2026-07-27National Institutes of HealthUSUnknown12
2026-07-26National Institutes of HealthUSUnknown12
2026-07-25National Institutes of HealthUSUnknown12
2026-07-24National Institutes of HealthUSUnknown12
2026-07-23National Institutes of HealthUSUnknown12
2026-07-22National Institutes of HealthUSUnknown12
2026-07-21National Institutes of HealthUSUnknown12
2026-07-20National Institutes of HealthUSUnknown12
2026-07-19National Institutes of HealthUSUnknown12
2026-07-18National Institutes of HealthUSUnknown12
2026-07-17National Institutes of HealthUSUnknown12
2026-07-16National Institutes of HealthUSUnknown12
2026-07-15National Institutes of HealthUSUnknown12
2026-07-14National Institutes of HealthUSUnknown12
2026-07-13National Institutes of HealthUSUnknown12
2026-07-12National Institutes of HealthUSUnknown12
2026-07-11National Institutes of HealthUSUnknown12
2026-07-10National Institutes of HealthUSUnknown12
2026-07-09National Institutes of HealthUSUnknown12
2026-07-08National Institutes of HealthUSUnknown12
2026-07-07National Institutes of HealthUSUnknown12
2026-07-06National Institutes of HealthUSUnknown12
2026-07-05National Institutes of HealthUSUnknown12
2026-07-04National Institutes of HealthUSUnknown12
2026-07-03National Institutes of HealthUSUnknown12
2026-07-02National Institutes of HealthUSUnknown12
2026-07-01National Institutes of HealthUSUnknown12
2026-06-30National Institutes of HealthUSUnknown12
2026-06-29National Institutes of HealthUSUnknown12
2026-06-28National Institutes of HealthUSUnknown12
2026-06-27National Institutes of HealthUSUnknown12
2026-06-26National Institutes of HealthUSUnknown12
2026-06-25National Institutes of HealthUSUnknown12
2026-06-24National Institutes of HealthUSUnknown12
2026-06-23National Institutes of HealthUSUnknown5
2026-06-22National Institutes of HealthUSUnknown5
2026-06-21National Institutes of HealthUSUnknown5
2026-06-20National Institutes of HealthUSUnknown5
2026-06-19National Institutes of HealthUSUnknown5
2026-06-18National Institutes of HealthUSUnknown5
2026-06-17National Institutes of HealthUSUnknown5
2026-06-16National Institutes of HealthUSUnknown5
2026-06-15National Institutes of HealthUSUnknown5
2026-06-14National Institutes of HealthUSUnknown5
2026-06-13National Institutes of HealthUSUnknown5

IP-block changes

Open full filtered history →
ObservedBlockActionPrevious originsNew origins
2026-06-24165.112.32.0/22Acquired—AS30387
2026-06-24165.112.124.0/23Acquired—AS30387
2026-06-24165.112.127.0/24Acquired—AS30387
2026-06-24165.112.136.0/21AcquiredAS3527AS3527, AS30387
2026-06-24165.112.200.0/22Acquired—AS30387
2026-06-24165.112.200.0/23Acquired—AS30387
2026-06-24165.112.252.0/23Acquired—AS30387
Changes page 1